https://cncz.science.ru.nl/en/ Recent content on C&CZ News Hugo -- gohugo.io en Tue, 03 Mar 2026 11:02:00 +0100 https://cncz.science.ru.nl/en/howto/contact/ Wed, 02 Nov 2022 10:08:04 +0100 Bram Daams https://cncz.science.ru.nl/en/howto/contact/ <p>For all ICT related questions and problems within FNWI please contact C&amp;CZ.</p> <h2 id="helpdesk--sysadminsysteemontwikkeling">Helpdesk &amp; <a href="../systeemontwikkeling">Sysadmin</a></h2> <table> <thead> <tr> <th>phone</th> <th>room</th> <th>mail</th> </tr> </thead> <tbody> <tr> <td><a href="tel:&#43;31243620000">+31 24 36 20000</a></td> <td><code>HG00.051</code></td> <td><a href="mailto:helpdesk@science.ru.nl">helpdesk@science.ru.nl</a></td> </tr> </tbody> </table> <h2 id="visiting-address">Visiting address</h2> <p>We are located on in the front part of wing 5, ground floor of the Huygens Building (rooms <code>HG00.051</code>, <code>HG00.509</code> and <code>HG00.545</code>). The helpdesk is available during office hours (8:30 - 17:00). During that time the office is staffed.</p> <blockquote> <p>Full address: Huygens Building, HG00.051, Heyendaalseweg 135, 6525 AJ Nijmegen</p> https://cncz.science.ru.nl/en/cpk/1423/ Tue, 03 Mar 2026 11:02:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1423/ <p>A planned reboot of one of the science firewalls at 10:30 should normally have been unnoticable, however, after the firewall came back online, the <strong>keepalived</strong> service failed to start, which prevented the firewall’s virtual IP from being advertised. As a result, traffic to several internal services appeared to hang.</p> <p>The issue was resolved by manually starting the keepalived daemon at 10:51.</p> https://cncz.science.ru.nl/en/news/2026-03-03_jitsi-meet/ Tue, 03 Mar 2026 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/news/2026-03-03_jitsi-meet/ <p>For a long time, at least since before Covid-19, <a href="https://jitsivm.science.ru.nl" target="_blank">we have hosted</a> a local <a href="https://meet.jit.si" target="_blank">jitsi meet</a> installation.</p> <p>The installation was becoming a bit old and stuffy, so time for a new version and a new name.</p> <ul> <li><a href="https://meet.science.ru.nl" target="_blank">Meet</a> is our <em>new</em> jitsi install for general use.</li> <li><a href="https://jt.science.ru.nl" target="_blank">Jitsi Test</a> is our <em>test</em> jitsi install, when we test new features here, so can you.</li> </ul> <p>The *<a href="https://jitsivm.science.ru.nl" target="_blank">old jitsi</a> will be retired soon, so please go try the new one.</p> https://cncz.science.ru.nl/en/news/2026-02-09_mail-update1/ Mon, 09 Feb 2026 00:00:00 +0100 Arnoud Thörig https://cncz.science.ru.nl/en/news/2026-02-09_mail-update1/ <h3 id="enhanced-email-security">Enhanced Email Security</h3> <p>We are pleased to announce we have completed the first step in the update to our email system. This will improve the security and reliability of your mail handling. As part of this upgrade, we have introduced new software at the start of our email flow (on the inbound MX servers). This advanced system now evaluates incoming emails to determine if they are legitimate.</p> <p>If an email fails to meet the required standards or appears very suspicious, it will be blocked at the entry point, in accordance with RFC guidelines for mail transport. This is a crucial first step toward creating a safer and more secure email environment for everyone.</p> https://cncz.science.ru.nl/en/news/2026-02-05_local_llm_chat/ Thu, 05 Feb 2026 09:12:56 +0100 Miek Gieben https://cncz.science.ru.nl/en/news/2026-02-05_local_llm_chat/ <p>At the start of this year we installed a high-performance server (512 GB memory, two high-end GPUs). This machine now hosts local large-language models <a href="https://en.wikipedia.org/wiki/Large_language_model" target="_blank">LLMs</a>, meaning the AI runs entirely on‑premise and your data never leaves our network.</p> <h2 id="what-you-can-do-today">What you can do today</h2> <ul> <li>Access the web UI at <a href="https://chat.science.ru.nl" target="_blank">chat.science.ru.nl</a>. Log in with your Science RU username (e.g., jdoe, not <a href="mailto:jdoe@science.ru.nl">jdoe@science.ru.nl</a>).</li> <li>The service is powered by <a href="https://ollama.com/" target="_blank">Ollama</a> and <a href="https://openwebui.com/" target="_blank">Open WebUI</a>, providing a clean, responsive chat interface.</li> <li>Early tests show reliable <em>speech‑to‑text</em> (including Dutch) and the ability to <em>review source code</em>. A user experience that feels very close to the larger commercial models, even though we are currently using open‑source models a few generations older.</li> </ul> <h2 id="current-status---experimental">Current status - experimental</h2> <ul> <li>We don&rsquo;t know how many concurrent users the system can support and how much persistent storage will be required.</li> <li>No automated backups are in place; please treat the data you store there as temporary.</li> </ul> <ul> <li>Uptime is not guaranteed. The service may need to be restarted or the server rebooted when we apply configuration changes or updates.</li> </ul> <ul> <li>The setup will evolve as we gather feedback, so your input is valuable.</li> </ul> <h2 id="which-models-are-available">Which models are available?</h2> <p>Browse the full catalog on <a href="https://ollama.com/search" target="_blank">ollama.com/search</a>. At the moment we run two modes: <strong><em>gpt‑oss</em></strong> and <strong><em>deepseek-r1</em></strong> , but others can be added on request. We ran <strong><em>deepseek-r1:671b</em></strong>, but this model is too large for the machine we have.</p> https://cncz.science.ru.nl/en/cpk/1422/ Thu, 05 Feb 2026 00:00:00 +0100 Bram Daams https://cncz.science.ru.nl/en/cpk/1422/ <p>After an upgrade on Feb 3, the DIY service kept an old process running, so self‑service account creation failed. 12 users hit the “account creation failed” error between 12:01 AM and 9:33 AM. The process was restarted, the new version took over and login creation works again. Sorry for the hassle!</p> https://cncz.science.ru.nl/en/cpk/1421/ Wed, 04 Feb 2026 00:00:00 +0100 Arnoud Thörig https://cncz.science.ru.nl/en/cpk/1421/ <p>We are working on <a href="https://cncz.science.ru.nl/en/news/2026-01-26_mail-announcement/" target="_blank">replacing our incoming mailservers</a> and something went wrong.</p> <p>Due to an unexpected block in the mail flow, around 2800 mails which were queued from around 18:00 on Feb 2nd, were lost. The host queuing the mail, was replaced on Feb 3rd, around 8:30 and decommissioned at around 9:00. Unfortunately, the decommissioning also destroyed the disk of the server with the mail queue of around 2800 e-mails.</p> <p>At 18:00 on Feb 2nd, two servers were accepting incoming mail, but only one of the servers was queuing, the other one was running as expected.</p> https://cncz.science.ru.nl/en/news/2026-01-26_mail-announcement/ Mon, 26 Jan 2026 00:00:00 +0100 Arnoud Thörig https://cncz.science.ru.nl/en/news/2026-01-26_mail-announcement/ <p>C&amp;CZ was the first to implement e-mail (@sci.kun.nl) at the KUN (Katholieke Universiteit Nijmegen), some 35 years ago. Some configurations we have used since then have not kept up with the changing landscape of e-mail implementations worldwide. In Dutch there&rsquo;s a saying for this: &ldquo;De wet van de remmende voorsprong&rdquo;.</p> <p>One of the major things that have changed over time is dealing with SPAM. For instance, there are now protocols that major e-mail players require and therefore became the de facto standard for email communication.</p> https://cncz.science.ru.nl/en/news/2026-01-19_diy_products/ Mon, 19 Jan 2026 00:00:00 +0100 Miek Gieben https://cncz.science.ru.nl/en/news/2026-01-19_diy_products/ <p>A new, for now experimental, feature is live on <a href="https://diy.science.ru.nl" target="_blank">DIY</a>, where you can &ldquo;order&rdquo; services directly by clicking the + on the right side.</p> <figure> <img loading="lazy" src="https://cncz.science.ru.nl/img/2026/product-plus.png"/> <figcaption> Ordering a product. </figcaption> </figure> <p>This includes:</p> <ul> <li>Accounts: temporary logins, new groups, or guest accounts.</li> <li>Storage: new volumes or <a href="https://cncz.science.ru.nl/en/news/2024-06-26-rclone/" target="_blank">cloud endpoints</a> on volumes.</li> <li>Email: create new aliases and mailman lists.</li> <li>Contact us: send an email to the helpdesk.</li> </ul> <p>Some services are directly provisioned, for others we still send an email to <a href="mailto:helpdesk@science.ru.nl">helpdesk@science.ru.nl</a> where we need to implement the request manually.</p> https://cncz.science.ru.nl/en/cpk/1420/ Wed, 14 Jan 2026 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1420/ <p>Elabftw had an expired certificate, because after the move to a new server, this process was left unmonitored. Both the certificate and the monitoring are now fixed.</p> https://cncz.science.ru.nl/en/news/2026-01-15_hsts_ru_nl/ Wed, 14 Jan 2026 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/news/2026-01-15_hsts_ru_nl/ <h2 id="some-websites-under-sciencerunl-may-be-inaccessible">Some websites under science.ru.nl may be inaccessible</h2> <p>Several users have reported that they can no longer access websites such as <code>http://example.science.ru.nl</code>. Browsers block these connections because the parent domain ru.nl now requires HTTPS, while some websites, often served directly from devices or sensors, do not support encrypted connections.</p> <p>We are working on a general solution and will update this article once it becomes available.</p> <h2 id="background-http-strict-transport-security-hsts">Background: HTTP Strict Transport Security (HSTS)</h2> <p>Modern browsers enforce HTTP Strict Transport Security (HSTS) to prevent unencrypted HTTP access. Domains can opt in by being listed on hstspreload.org. Once listed, all subdomains must use HTTPS, and browsers will block HTTP entirely.</p> https://cncz.science.ru.nl/en/cpk/1419/ Mon, 01 Dec 2025 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1419/ <p>A combination of small failures in configuration and monitoring resulted in Daily backups not being run on peck between September 1st and last Friday. Backups are now running again, but other than the Monthly backups, there are no intermediate Daily backups for the volumes on server <code>peck</code>. Updates in monitoring/testing are in progress to prevent this kind of oversight in the future.</p> https://cncz.science.ru.nl/en/news/2025-12-01_mattermost/ Mon, 01 Dec 2025 00:00:00 +0100 Miek Gieben https://cncz.science.ru.nl/en/news/2025-12-01_mattermost/ <p>For years now Gitlab has bundled Mattermost as an integrated component for online chats, however this situation is changing, and Mattermost has <a href="https://forum.mattermost.com/t/mattermost-v11-changes-in-free-offerings/25126" target="_blank">announced</a> that it is dropping support for single-sign-on (SSO). This is turn makes the integration with Gitlab unusable, thus Gitlab is now <a href="https://docs.mattermost.com/product-overview/editions-and-offerings.html#mattermost-team-edition" target="_blank">pondering</a> dropping support altogether.</p> <p>This is unfortunate timing as we are working on tighter integration between science groups and Mattermost channels.</p> <h2 id="provisional-plan">Provisional Plan</h2> <p>So what are we going to do about this? For chat, we have been looking at <a href="https://zulip.com/" target="_blank">Zulip</a> for a while now. This a stand alone, 100% open source chat server that works just like Mattermost. It&rsquo;s supports <a href="https://openid.net/" target="_blank">OpenID</a>, so we can hook up to <a href="https://diy.science.ru.nl" target="_blank">diy</a> for SSO.</p> https://cncz.science.ru.nl/en/howto/slurm/ Tue, 25 Nov 2025 12:30:42 +0000 Ben Polman https://cncz.science.ru.nl/en/howto/slurm/ <h2 id="computer-cluster-architecture">Computer cluster architecture</h2> <p>The clusternodes that we manage for the various departments are all connected to the network, but not all are in the same subnet/vlan. We strive to keep the nodes of a single group in the same vlan to optimise internal network traffic. Connectivity with the storage servers for shares and homedirectories is always routed through the firewall, thus it is less performant than a local server and much less performant than local (within the server) storage on <code>/scratch</code>.</p> https://cncz.science.ru.nl/en/news/2025-11-24_overleaf/ Mon, 24 Nov 2025 00:00:00 +0100 Miek Gieben https://cncz.science.ru.nl/en/news/2025-11-24_overleaf/ <p>Over the years we&rsquo;ve had some requests to run an <a href="https://www.overleaf.com/" target="_blank">Overleaf</a> instance for science users. To integrate this well in our environment we would need the enterprise version, which costs about € 8,- per user per month. This is prohibitive expensive for us to run, because we would need to pay for all science users, so we will not be pursuing setting up Overleaf any further in the science domain.</p> <p>There are alternatives for this setup, they may or may not work for your use case:</p> https://cncz.science.ru.nl/en/cpk/1418/ Tue, 18 Nov 2025 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1418/ <p>After moving the elabftw site to a new server, it was impossible to send e-mail from the server, like when a user wants to reset their password. The changes that were necessary are in between the host and the docker container running elabftw, while figuring out what was needed also caused some general issues reaching the elabftw webserver.</p> https://cncz.science.ru.nl/en/cpk/1417/ Tue, 18 Nov 2025 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1417/ <p>To make the network less complicated and more easily manageable, we need to make vlans for the subnets <code>131.174.8.0/24</code> and <code>131.174.9.0/24</code>, this will involve some servers getting a new ip address. This affects firewall rules as well. We must coordinate this with ILS networking and the changes will cause disruptions between a few minutes up to a quarter of an hour.</p> <p>List of sites:</p> <ul> <li> <p>alice.science.ru.nl</p> </li> <li> <p>alicecontrol.science.ru.nl</p> </li> <li> <p>coursetimetable.science.ru.nl</p> </li> <li> <p>dmarcreport.science.ru.nl</p> </li> <li> <p>edutools.science.ru.nl</p> </li> <li> <p>eduview.science.ru.nl</p> https://cncz.science.ru.nl/en/cpk/1416/ Thu, 13 Nov 2025 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1416/ <p>The certificate of the radius server has been replaced this morning, users who use their science account for authenticating to the Eduroam network will not have been able to connect until the certificate was fixed.</p> <p>You may need to &rsquo;trust-on-first-use&rsquo; or other setting in your device to properly reconnect and trust the certificates, if that still fails.</p> https://cncz.science.ru.nl/en/cpk/1415/ Tue, 11 Nov 2025 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1415/ <p>Every half year we do clusternode maintenance, with at least a package ugprade and a reboot, but sometimes other maintenance can happen, such as changes in filesystems or network configurations.</p> <p>The upcoming date for this maintenance is February 6th, 2026 (Friday)</p> <p>The maintenance is done.</p> https://cncz.science.ru.nl/en/howto/www-service/ Mon, 27 Oct 2025 09:05:18 +0000 Simon Oosthoek https://cncz.science.ru.nl/en/howto/www-service/ <h2 id="starting-a-new-www-service">Starting a new WWW service</h2> <p>This document gives a short description which decisions have to be made before a new WWWW service within the Science Faculty can be started.</p> <h2 id="contact-communications">Contact Communications</h2> <p><code>C&amp;CZ</code> is not the communications department, officially all communication and therefore websites should be provided and endorsed by the communication department.</p> <p>However, sometimes a website is actually an application with a web interface and this can usually not be provided via the official communication website.</p> https://cncz.science.ru.nl/en/cpk/1414/ Mon, 27 Oct 2025 09:21:50 +0100 Bram Daams https://cncz.science.ru.nl/en/cpk/1414/ <p>A brief service interruption occurred this morning when one of our LDAP servers refused to start. This affected services that depend on LDAP for user authentication. Services such as Eduroam (using science login for authentication) and GitLab experienced authentication failures during this time. We are investigating the source of the failure to prevent recurrence.</p> https://cncz.science.ru.nl/en/cpk/1411/ Mon, 27 Oct 2025 08:00:03 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1411/ <p>Recently we have <a href="./1407/">experienced some issues with nfs filesystems</a> one of the main suspects was the ZFS filesystem having a lack of cache memory on the machine. In order to improve the situation we will install more memory in the servers. This will cause a downtime of about 10-15 minutes per server. We plan to do this before 10:00 or after 16:00 on Monday Oct 27, 2025.</p> <h2 id="update-27-oct-2025">Update 27 Oct 2025</h2> <p>The memory upgrade was concluded around 09:15 on Monday 27 Oct.</p> https://cncz.science.ru.nl/en/cpk/1413/ Thu, 23 Oct 2025 10:35:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1413/ <p>The <a href="https://elabftw.science.ru.nl/" target="_blank">ElabFTW</a> server will be upgraded and also moved to another host on Monday October 27th, this will be a little bit more involved than a normal version upgrade, and you can expect some downtime during the move and upgrade.</p> <p>Update: upgrading was done on the old server, moving to the new server ran into some unexpected issues, we will plan a new date for that.</p> <p>Update: move was done on Sunday November 2nd, some users report problems logging in, but that appears to be temporary due to elab running on a different ip address and machine.</p> https://cncz.science.ru.nl/en/howto/hardware-servers/ Wed, 22 Oct 2025 12:38:00 +0000 Simon Oosthoek https://cncz.science.ru.nl/en/howto/hardware-servers/ <h2 id="servers-and-workstations">Servers and Workstations</h2> <p>C&amp;CZ manages about 400 Linux servers and hundreds of Linux workstations and a few servers with MS-Windows, primarily in the domain <code>science.ru.nl</code>. Dual boot Windows/Linux machines are counted twice. The servers are distributed over three datacenters.</p> <h3 id="workstations">Workstations</h3> <p>C&amp;CZ manages (for departments) workstations with Ubuntu Linux. There are also workstations in the PC-rooms for general use by anybody with a <a href="https://cncz.science.ru.nl/en/howto/login/">Science login</a>, but also by all RU employees and students and guests with a temporary login. Almost all those machines are dual boot, the user can choose to boot Ubuntu Linux or MS-Windows.</p> https://cncz.science.ru.nl/en/cpk/1412/ Tue, 21 Oct 2025 16:38:03 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1412/ <p>On Thursday 23rd we will move the host of the rstudio website and another server to another location. This will cause some downtime, starting from about 9 O&rsquo;clock and it should be done within 1 hour.</p> https://cncz.science.ru.nl/en/news/2025-09-30_matlab-r2025b-available/ Tue, 30 Sep 2025 00:00:00 +0200 Arnoud Thörig https://cncz.science.ru.nl/en/news/2025-09-30_matlab-r2025b-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2025b, is available. The software and license codes <a href="https://cncz.pages.science.ru.nl/licenses/Matlab/" target="_blank">are directly available for Science accounts</a> and can be requested by other entitled users by sending <a href="https://cncz.science.ru.nl/en/howto/contact/" target="_blank">mail to the helpdesk</a>. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-share. All C&amp;CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2025a/bin/matlab) will be available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/cpk/1410/ Mon, 29 Sep 2025 09:29:03 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1410/ <p>The GitLab registry used by <a href="https://gitlab.science.ru.nl" target="_blank">gitlab.science.ru.nl</a> and <a href="https://gitlab.pep.cs.ru.nl" target="_blank">gitlab.pep.cs.ru.nl</a> is currently unavailable due to a disk failure in the storage backend. The faulty drive is being replaced, after which the registry should be available again.</p> https://cncz.science.ru.nl/en/cpk/1409/ Tue, 23 Sep 2025 12:40:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1409/ <p>Due to some cleanup changes, the miii server ended up without the proper firewall rules and account configuration scripts that it was supposed to get. We were able to fix the server eventually, but during the day, users were unable to work until it was fixed.</p> https://cncz.science.ru.nl/en/cpk/1408/ Tue, 23 Sep 2025 12:40:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1408/ <p>With the changes in the networks, we are able to optimise some vlan configurations to utilise the high speed link, which was impossible before. The network reconfiguration may need a reboot of the server, but otherwise not too much downtime is expected. The reboot takes about 5-10 minutes if necessary.</p> <p>The list of vm&rsquo;s affected (only those without redundant functionality are listed):</p> <p>vmhost05:</p> <ul> <li>mestrenova143</li> <li>pagespep</li> <li>pep1</li> <li>nolaivalkhof</li> <li>mestrenova150</li> <li>fsecure</li> <li>pep2</li> <li>pages</li> <li>licensevm1</li> <li>goudsmit</li> <li>zaaivm</li> <li>stormvogel</li> <li>nolaigoffert</li> <li>desdapi</li> </ul> <p>vmhost06:</p> https://cncz.science.ru.nl/en/cpk/1407/ Wed, 17 Sep 2025 10:50:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1407/ <p>When we moved the gateways of our networks from the old location to the new firewalls, we have received some complaints about NFS filesystems having slowness, longer delays or unavailability.</p> <p>In general NFS should never be a requirement for a clusternode job if you can avoid it, because this I/O is always much slower than local I/O from /scratch.</p> <p>We are investigating how we can optimise the network to resolve this issue, but we are hard pressed to know the exact cause of the problem. We are assuming the root cause might be that, now more traffic is passing through our firewalls, this degrades the performance in some way.</p> https://cncz.science.ru.nl/en/cpk/1405/ Wed, 17 Sep 2025 09:19:18 +0200 https://cncz.science.ru.nl/en/cpk/1405/ <p>A change in the firewall config had the uncalculated effect that ssh-sessions got blocked/dropped. The config has been reversed.</p> https://cncz.science.ru.nl/en/cpk/1406/ Wed, 17 Sep 2025 07:30:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1406/ <p>We need to move a server to another location, during the move some of the services are unavailable, including licenses for:</p> <ul> <li>Cadence Labview Originlab</li> <li>Cst Maple Server</li> <li>ExelisIdl Mathematica Synopsys</li> <li>Genesys Matlab VirtualMachine</li> <li>GurobiTokenServer Mentorgraphics Xilinx</li> <li>Hdlworks Moe</li> <li>IntelCompiler New</li> </ul> <p>Everything should be completed by 10:00.</p> https://cncz.science.ru.nl/en/cpk/1404/ Tue, 16 Sep 2025 11:50:29 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1404/ <p>Due to the gateway change the printing traffic followed a different route which ran into default blockages in the central firewall, after the problem was found a fix was implemented to allow this traffic to the printserver via the new route.</p> https://cncz.science.ru.nl/en/cpk/1403/ Mon, 15 Sep 2025 13:14:29 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1403/ <p>After switching the gateway for one of our busiest vlans to our own firewalls, a lot of websites were only available from outside that vlan, it took a while to understand the issue and find a fix for it. We now have a temporary fix in place that should make the websites work again.</p> https://cncz.science.ru.nl/en/cpk/1402/ Mon, 01 Sep 2025 10:57:57 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1402/ <p>Due to an unfortunate manual command, the package for <code>filemaker</code> was removed from the server. Service was restored after the weekend, when the backup was restored.</p> https://cncz.science.ru.nl/en/cpk/1401/ Mon, 01 Sep 2025 10:16:27 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1401/ <p>Due to an unfortunate manual command, the package for DHZ was removed from the servers, causing all attempts to login with MFA to fail on for example roundcube and lilo ssh login. Service was restored about half an hour later when the DHZ package was installed again.</p> https://cncz.science.ru.nl/en/howto/login/ Tue, 26 Aug 2025 17:03:10 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/login/ <h1 id="science-login">Science login</h1> <p>A Science login provides faculty students and employees access to services like <a href="../storage">networked storage</a>, <a href="../terminalkamers">computer labs</a>, <a href="../jupyterhub">JupyterHub</a>, <a href="../hardware-servers">clusternodes</a> and <a href="../gitlab">GitLab &amp; Mattermost</a>.</p> <blockquote> <p>A Science login usually resembles your name and does not contain periods, capital letters or an at sign (@). For example <code>johndoe</code>.</p> </blockquote> <p>All settings related to your Science login, like setting your password, <a href="https://cncz.science.ru.nl/en/howto/diy/#2fa" target="_blank">MFA</a>, storage, groups and email aliases can be managed in <a href="https://diy.science.ru.nl" target="_blank">DIY</a>. See the <a href="https://cncz.science.ru.nl/en/howto/diy/" target="_blank">DIY howto</a> for more information.</p> <h2 id="for-students--employees">For Students &amp; Employees</h2> <p>To create your Science login:</p> https://cncz.science.ru.nl/en/cpk/1400/ Tue, 26 Aug 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1400/ <p>Due to a change in how the Microsoft Exchange server validates e-mail, mails <strong>sent to</strong> an <code>@science.ru.nl</code> address (or similar domains for which we accept e-mail) from an external domain and with a forward to your <code>@ru.nl</code> mail are very likely to be dropped, because the receiving server at Microsoft considers this mail <em>forged</em>, in the sense that the sending client did not address the same domain as the receiving domain. This also applies to our <em>Mail Aliases</em> with <code>@ru.nl</code> addresses in them, when they are addressed from an external mail domain. The forwarded e-mail will be silently dropped, so senders will not notice a problem.</p> https://cncz.science.ru.nl/en/cpk/1399/ Fri, 22 Aug 2025 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1399/ <p>After an automatic update, Mattermost no longer starts. The issue has been identified; the solution requires relocating the installation. This may take some time.</p> <p>Mattermost is now running on a different server as gitlab, which was a lot of work to figure out, but all should be well now. For some people it may have been longer before everything worked, due to dns caching of the hostname <code>mattermost.science.ru.nl</code> to the wrong address.</p> https://cncz.science.ru.nl/en/cpk/1397/ Thu, 21 Aug 2025 00:00:00 +0200 Erik Visser https://cncz.science.ru.nl/en/cpk/1397/ <p>FNWI users have been experiencing delays in email reception since early this morning.</p> <p>We have been working on this issue but have not solved it yet.</p> <p>No emails have been lost, but we suspect certificate issues between the Science mail servers and the central RU mail filter.</p> <p>Update: the exact cause remains unknown.</p> <p>During investigations together with RU-ILS, we noticed a long-standing Certificate Chain issue.</p> <p>However, even after resolving this, the problem remained.</p> https://cncz.science.ru.nl/en/cpk/1398/ Thu, 21 Aug 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1398/ <p>In the process of migrating our server networks to new and faster stuff, we are moving the gateways to our (C&amp;CZ) managed firewalls. These firewalls already handle the traffic to our 25Gbit networks, while the older 1Gbit/s connected nodes had the gateway in a temporary router, which came to replace the old DR-HUYG router a few years ago.</p> <p>While we don&rsquo;t expect too much trouble, a hiccup may occur for up to a minute or so, while the network changes are being applied.</p> https://cncz.science.ru.nl/en/cpk/1396/ Mon, 18 Aug 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1396/ <p>We are working to upgrade the mail servers, due to caching in various parts, you may get messages about incorrect certificates or other problems, we expect this to resolve itself once we finish the updates.</p> <p>Update, we apparently still had problems with the certificates, but somehow missed it after last week&rsquo;s fix. There&rsquo;s a temporary fix in place, so we can work further on it Tomorrow.</p> https://cncz.science.ru.nl/en/cpk/1395/ Fri, 15 Aug 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1395/ <p>A change in the configuration management code has broken the certificate on the mailservers, we are trying to fix this properly, but until fixed, mail clients will complain about the server certificate.</p> <p>Fixed by restarting sendmail</p> https://cncz.science.ru.nl/en/news/2025-08-05_clustermaintenance_feb2026/ Tue, 05 Aug 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/news/2025-08-05_clustermaintenance_feb2026/ <p>August 5th we had a cluster maintenance day, the next cluster maintenance window will be on February 6th 2026. We will do updates to packages and reboot the nodes. We plan to do this on all cnXXX nodes, mlpXX and comaXX nodes.</p> <p>We will not upgrade to a new version of ubuntu on this day, if you want your clusternodes to be upgraded, please arrange this seperately with us.</p> https://cncz.science.ru.nl/en/news/2025-07-21_home-servers-replaced/ Mon, 21 Jul 2025 00:00:00 +0200 Ben Polman https://cncz.science.ru.nl/en/news/2025-07-21_home-servers-replaced/ <p>We have been working on replacing the old home servers home1 and home2 for some time now and a lot of our users have already been moved to the new home servers, home4, home5 and home6.</p> <p>If you login to dhz.science.ru.nl you can find your home volume path, for moved users this will look like</p> <pre><code>\\306a2a9df234234123123523c22054dfaf9.home.science.ru.nl\loginname </code></pre> <p>This path will not change in the future when we have to replace the home servers again. The first part is an alias for one of the new home servers. Every login will have an unique alias for its home path server.</p> https://cncz.science.ru.nl/en/cpk/1394/ Tue, 01 Jul 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1394/ <p>We picked August 5th to have a planned downtime/reboot of all clusternodes in the Science Cluster.</p> <p>This will involve at least package updates and a reboot, if other maintenance can be included we will try to fit this in as well.</p> https://cncz.science.ru.nl/en/cpk/1393/ Tue, 01 Jul 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1393/ <p>We will be moving servers from the serverroom ak008 (Huygens A-2.008) to other locations. A lot of services and virtual machines will be offline for a few hours while we disconnect, move and reconnect the hardware. Assuming everything goes well, the services should be up after turning the machines back on again.</p> <p>This CPK will be updated with more servers and information about affected services in the weeks before the move on August 7th 2025.</p> https://cncz.science.ru.nl/en/cpk/1392/ Wed, 18 Jun 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1392/ <p>There are servers unreachable due to an unknown problem with the 25Gbit network switch in room ak008.</p> <p>We don&rsquo;t know the root cause yet.</p> <p>Update: rebooting the affected switch has resolved the problem.</p> <pre tabindex="0"><code>DOWN amanda22.science.ru.nl DOWN cephgrafana.science.ru.nl DOWN cephgw3.science.ru.nl DOWN cephgw4.science.ru.nl DOWN cephmon2.science.ru.nl DOWN cephosd07.science.ru.nl DOWN cephosd08.science.ru.nl DOWN cephosd09.science.ru.nl DOWN cephosd10.science.ru.nl DOWN cephosd11.science.ru.nl DOWN cephosd12.science.ru.nl DOWN cephosd13.science.ru.nl DOWN cephosd23.science.ru.nl DOWN cephosd26.science.ru.nl DOWN cephosd27.science.ru.nl DOWN chemotionvm.science.ru.nl DOWN containervm02.science.ru.nl DOWN dockervm01.science.ru.nl DOWN dockervm02.science.ru.nl DOWN dockervm03.science.ru.nl DOWN ds3-huyg.net.science.ru.nl DOWN elabrolabvm.science.ru.nl DOWN filemakervm.science.ru.nl DOWN home3.science.ru.nl DOWN jupytervm.science.ru.nl DOWN mariavm02.science.ru.nl DOWN mossvm.vm.science.ru.nl DOWN rootcell.science.ru.nl DOWN vmhost03.science.ru.nl DOWN vmhost04.science.ru.nl DOWN vmhost07.science.ru.nl DOWN zammad3.vm.science.ru.nl </code></pre> https://cncz.science.ru.nl/en/cpk/1391/ Mon, 16 Jun 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1391/ <p>Services on networks that are currently behind our old picos switches will be transferred to be behind our firewalls. This may take a few minutes of downtime due to the changes needed for moving the gateway functionality.</p> <p>If all goes well, it will be one period of a few minutes, if we need to roll back and fix things, there may be a repeat downtime.</p> <p>All went well, there was a few minutes of interruption on the cncz homepage due to ARP caching issues.</p> https://cncz.science.ru.nl/en/news/2025-06-12_matlab-r2025a-available/ Thu, 12 Jun 2025 00:00:00 +0200 Arnoud Thörig https://cncz.science.ru.nl/en/news/2025-06-12_matlab-r2025a-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2025a, is available. The software and license codes <a href="https://cncz.pages.science.ru.nl/licenses/Matlab/" target="_blank">are directly available for Science accounts</a> and can be requested by other entitled users by sending <a href="https://cncz.science.ru.nl/en/howto/contact/" target="_blank">mail to the helpdesk</a>. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-share. All C&amp;CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2024b/bin/matlab) will be available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/news/2025-06-11-diy-2fa-restriction/ Wed, 11 Jun 2025 00:00:00 +0200 Miek Gieben https://cncz.science.ru.nl/en/news/2025-06-11-diy-2fa-restriction/ <p>As most Science users have enabled their <a href="https://cncz.science.ru.nl/en/news/2025-05-14-2fa-services">two-factor</a> authentication, we are now going to restrict DIY functionality for accounts <em>without</em> a second factor. If you have not enabled a second factor, you can:</p> <ul> <li>Login into DIY</li> <li>Set a password</li> <li>Enable your second factor</li> </ul> <p>All other functionally is disabled and will lead to an &lsquo;Insufficient access&rsquo; error. In subsequent versions of the DIY software we will (further) hide actions and listing that you will not be able to use.</p> https://cncz.science.ru.nl/en/cpk/1390/ Fri, 06 Jun 2025 00:00:00 +0200 Erik Visser https://cncz.science.ru.nl/en/cpk/1390/ <p>Following the recent update of our LDAP servers certificates, multiple users have reported authentication failures when attempting to log in via RADIUS.</p> <p>The issue appears to affect only users with RADIUS-based authentication, while LDAP-based authentication continues to function successfully.</p> <p>Affected users typically include HFML technicians, guest console users, and Science logins with Wi-Fi access.</p> https://cncz.science.ru.nl/en/news/2025-06-02_lilo9-becomes-lilo-lilo7-turned-off/ Wed, 04 Jun 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/news/2025-06-02_lilo9-becomes-lilo-lilo7-turned-off/ <p>Lilo7 was running <em>ubuntu 20.04 LTS</em> (LTS=Long term support). Since the LTS support period has ended for ubuntu 20.04, we have turned off lilo7 on June 2nd, because there are no (free) security updates anymore for this OS release. We will repurpose the hardware for other tasks for the faculty.</p> <p>We have a new <code>lilo9</code> with Ubuntu 24.04 LTS. We will make this the new <code>lilo</code> on <em>August 1st 2025</em>. Lilo9 will remain available until end of May 2029.</p> https://cncz.science.ru.nl/en/news/2025-05-14-2fa-services/ Tue, 20 May 2025 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2025-05-14-2fa-services/ <blockquote> <h1 id="update-2025-05-20">Update 2025-05-20</h1> <p>This has been activated around 11 &lsquo;o clock.</p> </blockquote> <p>On May the 20th we have enabled mandatory multifactor authentication for the following services:</p> <ul> <li><a href="https://diy.science.ru.nl" target="_blank">DIY</a> web site.</li> <li><a href="https://roundcube.science.ru.nl" target="_blank">Roundcube</a>, for reading mail.</li> <li>SSH from the internet to public servers, like the lilos.</li> </ul> <p>Below you can read how you can log in for each service.</p> <h2 id="diy">DIY</h2> <p>Enter your Science login name, your password and the TOTP code from your authenticator app.</p> <p>If you have configured a Yubi key with us, you can also use the Yubi key&rsquo;s OTP.</p> https://cncz.science.ru.nl/en/cpk/1389/ Mon, 19 May 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1389/ <p>In the transition from the older 25Gbit switches to newer switches, two blocks of 4 connections were temporarily unavailable due to a peculiarity of the switches where ports are operated in blocks of 4. The removal of an unused cable triggered a disabling of the other ports in the bunch, reseating one of these connections in one case and re-inserting the unused cable fixed the block of ports to start working again.</p> https://cncz.science.ru.nl/en/cpk/1388/ Mon, 12 May 2025 00:00:00 +0200 Erik Visser https://cncz.science.ru.nl/en/cpk/1388/ <p>Due to errors on the /vol/astro2 filesystem, we had to reboot the fileserver comas1 and take it offline to perform repairs. During this process, both /vol/astro2 and /vol/astro5 have been unavailable.</p> https://cncz.science.ru.nl/en/cpk/1387/ Mon, 12 May 2025 00:00:00 +0200 Eric Lieffers https://cncz.science.ru.nl/en/cpk/1387/ <p>Due to errors on the filesystem /vol/astro7, we had to reboot the fileserver comas2, and take in offline to run repairs on the filesystems. During those repairs /vol/astro7 and /vol/astro6 are not available.</p> <p>Last time this happend it took 24 hours to complete</p> https://cncz.science.ru.nl/en/cpk/1386/ Fri, 18 Apr 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1386/ <p>After the package for gitlab was updated, the service did not come up again, due to a problem with post-install scripts. After rebooting the package installation could finish and service was restored.</p> https://cncz.science.ru.nl/en/news/2025-04-14_new-version-of-mathematica-14-2-1/ Mon, 14 Apr 2025 00:00:00 +0200 Arnoud Thörig https://cncz.science.ru.nl/en/news/2025-04-14_new-version-of-mathematica-14-2-1/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (14.2.1) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>.</p> <p>When connected wired or wireless on campus or through <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>, the software for Windows, Linux and macOS can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>.</p> <p>During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 14.2.1 includes critical updates for Chatbook and code captions along with other bug fixes and stability improvements.&rdquo;</p> https://cncz.science.ru.nl/en/news/2025-04-10_maple-new-version-maple2025/ Thu, 10 Apr 2025 00:00:00 +0200 Arnoud Thörig https://cncz.science.ru.nl/en/news/2025-04-10_maple-new-version-maple2025/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a>, Maple2025, for Windows/macOS/Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share and has been installed on C&amp;CZ managed Linux computers. License codes can be requested from C&amp;CZ helpdesk or postmaster.</p> https://cncz.science.ru.nl/en/howto/diy/authenticator/ Tue, 08 Apr 2025 10:00:00 +0000 Simon Oosthoek https://cncz.science.ru.nl/en/howto/diy/authenticator/ <h1 id="totp-authenticator-apps">TOTP Authenticator Apps</h1> <p>To generate a 6-digit code for two-factor login verification, you’ll need an app. Below is a list of apps you can use for this purpose—but if none of these suit you, there are plenty of other compatible options out there.</p> <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice info" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#info-notice"></use></svg></span>Info</p> https://cncz.science.ru.nl/en/news/2025-03-31_2fa/ Mon, 07 Apr 2025 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2025-03-31_2fa/ <p>On the <strong>20^th of May 2025</strong> we are enabling 2FA (second-factor-authentication) on the C&amp;CZ services: DIY, Roundcube and SSH on the <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-login-servers">login servers</a>.</p> <p>In this article you can find information on this roll-out and how to activate 2Fa on your Science account.</p> <p>As mentioned in an <a href="https://cncz.science.ru.nl/en/news/2025-01-15_2fa/">earlier news item</a>, we&rsquo;ve finished the tests and reached the following conclusions:</p> <ul> <li> <p>Anyone with a Science account can enable 2FA in DIY using <a href="https://cncz.science.ru.nl/en/howto/diy/#2fa" target="_blank">this procedure</a>.</p> </li> <li> <p>For about 6 weeks you can enable 2FA in DIY. You must have activated 2FA by the <strong>20^th of May 2025</strong> if you want to use: DIY, Roundcube or SSH on the <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-login-servers">login servers</a>.</p> https://cncz.science.ru.nl/en/cpk/1385/ Mon, 07 Apr 2025 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1385/ <p>Due to a change in the network setup the dhcp servers for the 25 gbit networks (which are being changed to new switches and a new management method) the dns servers were unreachable by the dhcp servers. This caused the dhcp servers to be unable to resolve the names in the configuration to their ip addresses. It was fixed by a change in the central firewall.</p> https://cncz.science.ru.nl/en/howto/diy/glossary/ Tue, 01 Apr 2025 10:12:45 +0000 Miek Gieben https://cncz.science.ru.nl/en/howto/diy/glossary/ <h2 id="checkdate">Check Date</h2> <p>This date is used to track the validity of this Science account. Near the check date the IT contact person of that account will receive a request to advance this date into the future. The aim of this feature is to make sure Science accounts are actually used and dormant ones are, eventually, removed.</p> <figure> <img loading="lazy" src="https://cncz.science.ru.nl/img/2025/diy/checkdate-account.png"/> <figcaption> Manipulating the account&#39;s check date. </figcaption> </figure> <p>In this form, you can extend the accounts check date by half a year (+½), a full year (+1), or go the other way and decrease it by half a year (-½).</p> https://cncz.science.ru.nl/en/news/2025-03-14-dhz-live/ Fri, 14 Mar 2025 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2025-03-14-dhz-live/ <p>After our <a href="https://cncz.science.ru.nl/en/news/2024-12-09-new-dhz/" target="_blank">previous news message</a> concerning the new implementation of DIY, we are now ready to announce:</p> <blockquote> <p>The new <a href="https://diy.science.ru.nl" target="_blank">DIY</a> will go live on Thursday the 20th of March.</p> </blockquote> <p>The previous DIY server will be kept running on <a href="https://prev.dhz.science.ru.nl" target="_blank">https://prev.dhz.science.ru.nl</a>. If there is are things that work in the old one, but not in the new one, please <a href="https://cncz.science.ru.nl/en/howto/contact">let us know</a>.</p> <p>The old DIY will be turned off <del>on the first</del> the 11^th of April 2025.</p> https://cncz.science.ru.nl/en/howto/storage/ Thu, 13 Mar 2025 12:36:19 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/storage/ <h1 id="introduction">Introduction</h1> <p>In our Faculty, different types of data storage are offered:</p> <table> <thead> <tr> <th>Storage class</th> <th>Description</th> <th>Risk for data loss</th> </tr> </thead> <tbody> <tr> <td><a href="#home-directories">Home directories</a></td> <td>Small (several GB), reliable, backed up storage for individuals</td> <td>low</td> </tr> <tr> <td><a href="#network-shares">Network shares</a></td> <td>Larger (1-200 TB), reliable, backed up storage for individuals or groups</td> <td>low</td> </tr> <tr> <td><a href="#local-storage">Local storage</a></td> <td>Not backed up storage on desktop computers and cluster nodes, likely to be lost in case of a hardware problem or when the machine gets reinstalled</td> <td>high</td> </tr> </tbody> </table> <h1 id="home-directories">Home directories</h1> <p>Your Science login comes with a home directory of 5GB at no costs. This is a safe place to store you work related documents. Home directories are stored on reliable hardware and <a href="../backup">backupped</a> automatically. If you need more than 5GB of storage, and you can&rsquo;t <a href="../quota/#frequent-culprits-for-eating-your-quota">clean up some data</a>, it can be enlarged on <a href="../contact">request</a>.</p> https://cncz.science.ru.nl/en/howto/werkplekondersteuning/ Thu, 20 Feb 2025 15:29:55 +0000 Simon Oosthoek https://cncz.science.ru.nl/en/howto/werkplekondersteuning/ <h2 id="location">location</h2> <p>Operations/helpdesk is located in room HG00.051.</p> <h2 id="type-of-help-available">Type of help available</h2> <ul> <li>User support for students and staff (General IT questions)</li> <li><a href="https://cncz.science.ru.nl/en/howto/terminalkamers/">Installation and maintenance of hardware available for students, especially the computer labs and public workstations</a></li> <li>General support of computer equipment in research departments</li> <li>Assistance for, or advice with respect to, <ul> <li><a href="https://cncz.science.ru.nl/en/howto/installeren-werkplek/">PC installation and software</a></li> <li><a href="https://cncz.science.ru.nl/en/howto/reparaties/">repairing PC&rsquo;s and laptops</a></li> </ul> </li> </ul> https://cncz.science.ru.nl/en/news/2025-01-28_lilo_access_via_ssh_pubkey_and_ip_range/ Tue, 28 Jan 2025 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/news/2025-01-28_lilo_access_via_ssh_pubkey_and_ip_range/ <p>We have updated the authentication process for <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-login-servers">login servers</a> after a succesful test we announced in <a href="https://cncz.science.ru.nl/en/cpk/1383/" target="_blank">CPK#1383</a>.</p> <p><strong>As of now, your <code>~/.ssh/authorized_keys</code> file on lilo is ignored!</strong>, instead you can send us your public ssh key (contents of the <code>.pub</code> file) to keep for your account. This change is designed to prevent bad actors from easily gaining persistent access. For convenience we have added the keys we have found in homedirectories that were added or modified after we restricted access to lilo, if your key is from before December 9th, you will need to send the public key to us.</p> https://cncz.science.ru.nl/en/cpk/1384/ Tue, 28 Jan 2025 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1384/ <p>A package upgrade broke the internal networking on our ubuntu 20.04 docker container VMs. Internal name resolution does not work anymore.</p> https://cncz.science.ru.nl/en/news/2025-01-15_2fa/ Mon, 27 Jan 2025 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2025-01-15_2fa/ <p><a href="https://cncz.science.ru.nl/en/news/2024-12-11_science-services-vpn/">At the end of last year</a> we&rsquo;ve promised an update on how we are planning to make access to our services more secure. In this post we expand on those plans.</p> <p>In short: we are going to deploy 2FA on Science accounts and make it <em>mandatory</em> for services that are reachable from the internet.</p> <p>How this all works from an organizational standpoint is, at this point, not complete clear yet. Do we need a &ldquo;in-person&rdquo; <em>vetting</em> procedure? Or do we allow users to enable this themselves in DIY? Ideas on this will surface after the test period.</p> https://cncz.science.ru.nl/en/news/2025-01-26_new-version-of-mathematica-14-2-0/ Mon, 27 Jan 2025 00:00:00 +0100 Arnoud Thörig https://cncz.science.ru.nl/en/news/2025-01-26_new-version-of-mathematica-14-2-0/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (14.2.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>.</p> <p>When connected wired or wireless on campus or through <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>, the software for Windows, Linux and macOS can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>.</p> <p>During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 14.2 introduces a powerful tool in Tabular, which provides a very streamlined and efficient way to handle tables of data laid out in rows and columns, with hundreds of other functions enhanced to make use of its special features. Additional new functions and improvements have been added to enhance neural nets and LLMs, work with game theory, improve GPU computation, and expand images and videos.&rdquo;</p> https://cncz.science.ru.nl/en/news/2024-12-11_science-services-vpn/ Wed, 11 Dec 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-12-11_science-services-vpn/ <p>Due to a phishing attack targeting science accounts, and the subsequent abuse of RU mail servers to sent out spam and phishing from valid science e-mail accounts, we were forced to employ a set of defensive measure as evident from <a href="https://cncz.science.ru.nl/en/cpk/1383/">cpk/1381</a>, <a href="https://cncz.science.ru.nl/en/cpk/1382/">cpk/1382</a>, <a href="https://cncz.science.ru.nl/en/cpk/1381/">cpk/1381</a>.</p> <p>To prevent further abuse (and disruption) caused by compromised accounts, we have had to temporarily restrict access to some science services. These services include:</p> <ul> <li>Anything related to e-mail: Roundcube, authenticated SMTP, IMAP, and POP3.</li> <li>SSH access to the LILOs (see <a href="https://cncz.science.ru.nl/en/cpk/1383/">cpk/1383</a> for a workaround).</li> <li><a href="https://diy.science.ru.nl" target="_blank">DIY</a> as well as <a href="https://cncz.science.ru.nl/en/news/2024-12-09-new-dhz/">the new replacement</a>.</li> </ul> <p>Email services are now being reopened on a per science account basis. A set of approximately 1,000 accounts has regained normal access. To request access, please <a href="https://cncz.science.ru.nl/en/howto/contact/">contact us</a>.</p> https://cncz.science.ru.nl/en/news/2024-12-09-new-dhz/ Mon, 09 Dec 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-12-09-new-dhz/ <p>C&amp;CZ has been working to replace the current <a href="https://diy.science.ru.nl" target="_blank">DIY</a> website to make it easier to add new functionality to it.</p> <p>This work included a rewrite of the website and a large part of our tooling to the <a href="https://go.dev" target="_blank">Go</a> language. Taking the Dutch term for DIY (<em>Doe Het Zelf</em> - DHZ) prefixing it with Go, this resulted in the codename &ldquo;godzilla&rdquo;.</p> <p>A pre-release of this new website is running on <a href="https://godzilla.science.ru.nl" target="_blank">https://godzilla.science.ru.nl</a>. Note this site is fully functional (modulo bugs), so any changes made there are <em>really</em> being made to your science account. Eventually this version will run on <a href="https://diy.science.ru.nl" target="_blank">https://diy.science.ru.nl</a>.</p> https://cncz.science.ru.nl/en/cpk/1383/ Wed, 04 Dec 2024 00:00:00 +0100 Arnoud Thörig https://cncz.science.ru.nl/en/cpk/1383/ <p>We have updated the authentication process for <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-login-servers">login server</a> <code>lilo7</code> (lilo7.science.ru.nl) as part of a test.</p> <p>As of now, your <code>~/.ssh/authorized_keys</code> file on lilo7 is ignored. This change is designed to prevent bad actors from easily gaining persistent access.</p> <p>The good news is that we can now grant access to <code>lilo7</code> from outside the previously very restricted IP ranges.</p> <p>To gain access from a new IP range, you will need to <a href="https://cncz.science.ru.nl/en/howto/contact">provide us</a> with your public SSH key and the IP range you will be connecting from.</p> https://cncz.science.ru.nl/en/cpk/1382/ Tue, 26 Nov 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1382/ <p>De following Science services will be placed behind <a href="https://www.ru.nl/en/staff/services/campus-facilities-buildings/ict/working-off-campus/vpn-off-campus-access-to-systems/using-eduvpn" target="_blank">eduVPN</a>. This means if you want to have continued access, you <em>must</em> use this VPN.</p> <p>De volgende Science services worden achter eduVPN gezet.</p> <ul> <li><a href="https://diy.science.ru.nl" target="_blank">DHZ/DIY</a></li> <li>SMTP (mail sending)</li> <li><a href="https://cncz.science.ru.nl/nl/howto/hardware-servers/#linux-login-servers" target="_blank">LILOs</a></li> <li><a href="https://roundcube.science.ru.nl" target="_blank">Webmail</a></li> </ul> <p>If you have questions are experience problems with setting up eduVPN, please contact <a href="https://cncz.science.ru.nl/en/howto/contact/" target="_blank">our helpdesk</a>.</p> https://cncz.science.ru.nl/en/cpk/1381/ Tue, 26 Nov 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1381/ <p>Due to circumstances we are forced to shut the Science VPN with immediately effect.</p> <p>See this <a href="https://cncz.science.ru.nl/en/news/2024-11-21_vpn-off/">news article</a> where we previously said this would happen on December the 1st.</p> <p>If you have questions are experience problems with setting up EduVPN, please contact <a href="https://cncz.science.ru.nl/en/howto/contact/" target="_blank">our helpdesk</a>.</p> https://cncz.science.ru.nl/en/cpk/1380/ Fri, 22 Nov 2024 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1380/ <p>The webmail interface called &ldquo;Rainloop&rdquo; has been permanently shut down, due to the upstream project not being maintained anymore. We don&rsquo;t have the resources to fix security issues or take over the open source project ourselves.</p> https://cncz.science.ru.nl/en/news/2024-11-21_vpn-off/ Thu, 21 Nov 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-11-21_vpn-off/ <p>The Science <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPNsec and OpenVPN</a> service will be discontinued as of <s>2024-12-01 (1 Dec 2024)</s> 2024-11-26.</p> <p>To ensure continued secure access to our network, we recommend transitioning to eduVPN, our <a href="https://www.ru.nl/en/staff/services/campus-facilities-buildings/ict/working-off-campus/vpn-off-campus-access-to-systems/using-eduvpn" target="_blank">officially supported VPN service</a>.</p> <p>This was first announced in <a href="https://cncz.science.ru.nl/en/news/2024-02-23_use-eduvpn-instead-of-science-vpns-vpnsec-and-openvpn/">February 2024</a>. If you have any questions or require assistance, feel free to <a href="https://cncz.science.ru.nl/en/howto/contact">contact us</a>.</p> https://cncz.science.ru.nl/en/howto/high-performance-computing/ Tue, 05 Nov 2024 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/howto/high-performance-computing/ <p>At the faculty of science, C&amp;CZ manages a number of compute clusters and we have our own computer room with a few dozen racks for server hardware and also some racks in the <em>Forum</em> computer room.</p> <h2 id="financial-model">Financial model</h2> <p>The faculty in general doesn&rsquo;t own (m)any compute nodes, departments purchase their own servers (we can help configure these), which we install and manage during their lifetime. All clusternodes can be integrated in our <a href="https://cncz.science.ru.nl/en/howto/slurm/">SLURM</a> cluster management.</p> https://cncz.science.ru.nl/en/news/2024-10-16_new-version-of-mathematica-14-1-0/ Wed, 16 Oct 2024 00:00:00 +0200 Arnoud Thörig https://cncz.science.ru.nl/en/news/2024-10-16_new-version-of-mathematica-14-1-0/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (14.1.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>.</p> <p>When connected wired or wireless on campus or through <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>, the software for Windows, Linux and macOS can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>.</p> <p>During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 14.1 introduces the unified Wolfram application and expands Wolfram Language by offering new tools for working with neural nets and LLMs, for finding differences in content, for working with images and videos, and for exploring scientific evaluations through biomolecules, astrophysics and more&rdquo;</p> https://cncz.science.ru.nl/en/cpk/1379/ Fri, 04 Oct 2024 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1379/ <p>The RADIUS service was temporarily unavailable after an automatic update of the FreeRADIUS package. RADIUS is used for authentication of Eduroam, OpenVPN, and Vpnsec when using Science accounts. The issue was automatically resolved when our RADIUS configuration was pushed to the RADIUS servers.</p> https://cncz.science.ru.nl/en/news/2024-10-03_hardware_repairs/ Thu, 03 Oct 2024 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2024-10-03_hardware_repairs/ <p>Recently, the <a href="https://www.ru.nl/en/students/news/rupair-shop-kicks-off-1-october-free-small-repairs-of-your-laptop" target="_blank">Radboud news</a> reported that students can have small repairs to their laptops done in the <a href="https://www.ru.nl/en/students/services/campus-facilities-buildings/ict/hardware/rupair-shop-free-small-repairs-of-your-laptop" target="_blank">RUpair-shop</a> without any labor time being charged.</p> <p>For students and employees of FNWI, the <a href="https://cncz.science.ru.nl/en/howto/contact/" target="_blank">C&amp;CZ helpdesk</a> provides a similar service. <a href="https://www.radboudnet.nl/personen/reijgwart-s" target="_blank">Stefan Reijgwart</a> and <a href="https://www.radboudnet.nl/personen/broek-d-r-van-den" target="_blank">Dominic van den Broek</a> in particular are specialists in repairing laptops, among other things.</p> https://cncz.science.ru.nl/en/cpk/1378/ Mon, 30 Sep 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1378/ <p>Due to a CPU crash, the milton fileserver was down overnight. After a manual reboot the server was ok again.</p> https://cncz.science.ru.nl/en/cpk/1377/ Sat, 21 Sep 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1377/ <p>The fileserver we call bushel crashed for as yet unknown reasons on Friday evening. From then until the manual reboot, all its shares were down.</p> <p>All affected shares:</p> <pre tabindex="0"><code>/vol/acfiles /vol/aerochem /vol/aggrgtindroplets /vol/akolkmandata /vol/albert /vol/amsbackup /vol/amscommon /vol/archivespruijt /vol/avance600 /vol/beevee /vol/bioniccell /vol/bio-orgchem /vol/bko /vol/boltje /vol/ccz /vol/cczhelpdesk /vol/cczsecr /vol/celbio1 /vol/celbio2 /vol/celbio3 /vol/chemprac /vol/chemstaff /vol/coastoffon /vol/cognac /vol/communicatie /vol/cursusdossiers /vol/desda /vol/devneurob /vol/diafragma /vol/dis /vol/ecogen /vol/ehef1 /vol/ehef2 /vol/ehef3 /vol/ehef4 /vol/epsylon /vol/femtospin /vol/frequencycomb /vol/fsr /vol/gissig /vol/gmi /vol/goudsmit1 /vol/goudsmit4 /vol/goudsmitoldusers /vol/grafting /vol/hafnerlab01 /vol/hafnerlab02 /vol/hafnerlab03 /vol/heatgenes /vol/heatyield /vol/hfml-backup /vol/hfml-backup2 /vol/hfml-backup3 /vol/hfml-backup4 /vol/hfml-backup5 /vol/highres /vol/honours /vol/huckgroup /vol/icis /vol/ifl-d1 /vol/imappdir /vol/imappdocs /vol/imappsecr /vol/immbureau /vol/immstaff /vol/impuls /vol/introcie /vol/invbio /vol/invbio2 /vol/isptinspec /vol/jupyter /vol/kaartenbak /vol/kangoeroe /vol/khaj /vol/korevaarstudents /vol/kuijperslab01 /vol/linova500 /vol/linova800 /vol/liquids /vol/mbaudit1 /vol/mbaudit3 /vol/mbaudit4 /vol/mbonderwijs /vol/mbsl /vol/mlf90 /vol/mlfalgemeen /vol/mlfsec /vol/modprspm19 /vol/molbiol /vol/morph /vol/mpcoldmollab /vol/mwstudiereis /vol/neuroinf /vol/neuroinf2 /vol/nmr500data /vol/nmrliquid400 /vol/nmrliquid500 /vol/nmrsolid000 /vol/nmrsolid300 /vol/nmrsolid400 /vol/nmrsolid600 /vol/nmrsolid850 /vol/nmrsolid950 /vol/nmrspectra /vol/oii /vol/olcii-archief /vol/olympus /vol/pcsm-share /vol/pcsoftmattersecr /vol/ppimm /vol/pracnat /vol/ruversatest /vol/sbs /vol/secrmolbiol /vol/sigma /vol/sigmacies /vol/snn3 /vol/snn4 /vol/soheto /vol/solids /vol/spacdata3 /vol/spectra /vol/spibdossier /vol/spm /vol/spm30cobp /vol/spm30febp /vol/spm30fecobp /vol/spm30mkdata1 /vol/spm30mkprojects1 /vol/spm30procobp23 /vol/spmdata3 /vol/spmdata4 /vol/spmdata5 /vol/spmdata6 /vol/spmdata7 /vol/spmexfoliation /vol/spmmagstm /vol/spmnanolab /vol/spmstaff /vol/ssi /vol/staff-hfml /vol/stroom /vol/studiereis2013 /vol/sucudo-transfer /vol/tartarus /vol/tf2devices /vol/thalia /vol/ucm /vol/unl /vol/uscm-ssi /vol/uscm-ssi-archive /vol/vsc /vol/vsc1 /vol/vsc10 /vol/vsc11 /vol/vsc12 /vol/vsc13 /vol/vsc14 /vol/vsc15 /vol/vsc16 /vol/vsc2 /vol/vsc3 /vol/vsc4 /vol/vsc5 /vol/vsc6 /vol/vsc7 /vol/vsc8 /vol/vsc9 /vol/vscadmin /vol/wiskalg /vol/wiskunde </code></pre> https://cncz.science.ru.nl/en/news/2024-09-20_matlab-r2024b-available/ Fri, 20 Sep 2024 00:00:00 +0200 Arnoud Thörig https://cncz.science.ru.nl/en/news/2024-09-20_matlab-r2024b-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2024b, is available. The software and license codes <a href="https://cncz.pages.science.ru.nl/licenses/Matlab/" target="_blank">are directly available for Science accounts</a> and can be requested by other entitled users by sending <a href="https://cncz.science.ru.nl/en/howto/contact/" target="_blank">mail to the helpdesk</a>. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-share. All C&amp;CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2024a/bin/matlab) will be available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/cpk/1376/ Fri, 06 Sep 2024 00:00:00 +0200 Erik Visser https://cncz.science.ru.nl/en/cpk/1376/ <p>With the introduction of Ubuntu 24.04 by C&amp;CZ, it turned out that the uids/gids of some users had to be changed because they were too small. This was immediately rolled out on servers, since those are always powered on, but needed a workaround on Ubuntu client PCs.</p> <p>Today it became clear that this workaround ignored new accounts, so first year students and new employees couldn&rsquo;t use Ubuntu clients. This has been fixed now and all C&amp;CZ managed Ubuntu client PCs in computer labs and the Library of Science have been updated.</p> https://cncz.science.ru.nl/en/cpk/1375/ Thu, 05 Sep 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1375/ <p>Gitlab pages was unavailable due to a problem with the underlying S3 storage. It took a while to fix, due to confusing messages in the logfiles of the service. title: gitlab pages onbruikbaar door storing in rados gw</p> https://cncz.science.ru.nl/en/cpk/1374/ Fri, 16 Aug 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1374/ <p>The backing store for gitlab-pages, accessed via the S3 protocol, went into failure mode for still unknown reasons. After restarting several servers of the storage cluster, the service became available again.</p> <h2 id="update-20-08-2024">update 20-08-2024</h2> <p>It happened again Today at 12:15, fixed quicky (within 20 min)</p> https://cncz.science.ru.nl/en/cpk/1373/ Tue, 13 Aug 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1373/ <p>Recently we have received and confirmed issues with delivering e-mail to certain domains, so far:</p> <pre tabindex="0"><code>adelaide.edu.au applemusic.com arizona.edu benwhale.com biologists.com communications.ssrn.com editorialmanager.com email.arizona.edu flinders.edu.au herts.ac.uk hireright.com hpeprint.com inhousevtm.com insideapple.apple.com ioppublishing.org mail.coinbase.com math.arizona.edu medicalschemes.com mq.edu.au newcastle.edu.au nonzeroratio.com skao.int sussex.ac.uk sydney.edu.au telegram.com uct.ac.za unimelb.edu.au uon.edu.au uow.edu.au uws.edu.au vistaprint.com webofscience.com westernsydney.edu.au woodpartners.com woolcock.org.au </code></pre><p>The mechanism by which this fails is getting clearer, but we are still figuring out how to deal with this. What most of these domains have in common is that they are hosted by the same service provider (mimecast.com). It appears to be something with the negotiation failing before the mail can be sent, which was no problem before as mails took another route after delivery failure.</p> https://cncz.science.ru.nl/en/cpk/1372/ Mon, 15 Jul 2024 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1372/ <p>After a network configuration update, we are currently experiencing issues with the Science VPN connections, resulting in no traffic passing through. We are investigating the cause of this issue. As an alternative, we recommend using <a href="../../howto/vpn#eduvpn">EduVPN</a> from SURF.</p> https://cncz.science.ru.nl/en/news/2024-06-26-rclone/ Wed, 26 Jun 2024 15:33:06 +0200 Miek Gieben https://cncz.science.ru.nl/en/news/2024-06-26-rclone/ <p>If you use <a href="https://cncz.science.ru.nl/en/howto/storage/#network-shares">C&amp;CZ storage</a>, you now have the new option to access these via network protocols other than SMB (for Windows and macOS) and NFS (for Linux), namely:</p> <ul> <li><code>sftp</code>: a secure variant of FTP</li> <li><code>https</code>: a (read-only) view of the share for browsers</li> <li><code>webdavs</code>: a (read-write) view of the share for browsers and webdav clients</li> <li><code>s3</code>: a read/write view using the Simple Storage Service (S3)</li> </ul> <p>Each of these may be active at the same time, and optionally can have an end date, so you can &ldquo;open up&rdquo; a share for writes from another organisation which then automatically &ldquo;closes&rdquo; at the end date. For <code>sftp</code>, authentication is done via an SSH key. The other protocols are authenticated with a username and password. These credentials are not tied to any person and are easily revoked or re-generated if the need arises.</p> https://cncz.science.ru.nl/en/cpk/1371/ Mon, 17 Jun 2024 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1371/ <p>We apologize for the inconvenience, but due to a software error, an (end date notification email)[https://cncz.science.ru.nl/en/howto/emailcodes/#login-3] was mistakenly sent to too many recipients. Please disregard and delete the email. If the email was intended for you, we will resend it next week. We are working on a fix to prevend this kind of error in the future.</p> https://cncz.science.ru.nl/en/cpk/1370/ Sat, 15 Jun 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1370/ <p>Science LDAP services are all unavailable, our radius service depends on this, so this also doesn&rsquo;t work.</p> <p>The TLS certificate has expired, after renewing the certificate and restarting the service it works again.</p> https://cncz.science.ru.nl/en/news/2024-06-14_a-bit-more-spam-after-ending-use-of-spamhaus/ Fri, 14 Jun 2024 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2024-06-14_a-bit-more-spam-after-ending-use-of-spamhaus/ <p>The Science mailservice used <a href="https://www.spamhaus.org" target="_blank">Spamhaus</a> for decades as one of the blocklists to filter spam in mail.</p> <p>When we were notified that we would need a commercial license that would cost ca. 5kEUR/y, we investigated how much more spam would come through without the Spamhaus service. This showed that users would get more spam, but most of it would be delivered in the Spam folder. Next to that, we expect that the spam filtering of the also used Exchange Online Protection will improve.</p> https://cncz.science.ru.nl/en/cpk/1369/ Mon, 10 Jun 2024 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1369/ <p>Due to a configuration error on the fileserver <code>bushel</code>, the NFS process did not run after a reboot. After correcting this error, the NFS service has been restarted.</p> https://cncz.science.ru.nl/en/cpk/1368/ Mon, 03 Jun 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1368/ <p>After a software upgrade and reboot of the AR-114-9 modules, dhcp relay from the Picos network is broken. The cause is still not 100% clear, we will update this incident when we know more.</p> <p>We tried setting up dhcp servers within the picos network, but this didn&rsquo;t solve the issue. We now suspect the picos switch itself, which we will try to restart in the morning of June 6th (between 7:30 and 8:30). This will affect all connections behind the picos switches. We hope the downtime will be less than 10 minutes.</p> https://cncz.science.ru.nl/en/news/2024-06-03_new-version-bookings/ Mon, 03 Jun 2024 00:00:00 +0200 Alexander Greefhorst https://cncz.science.ru.nl/en/news/2024-06-03_new-version-bookings/ <p>Last week, a new version of the Bookings Platform for Scientific Devices has been released.</p> <p>Together with <a href="https://www.emendis.nl/" target="_blank">Emendis</a>, we have given the application a total make-over: not only the look and feel have changed, but also the underlying technique has been revised. From now on, we will use SurfConext for authentication.</p> <p>We wish to thank all colleagues who helped us to test the new application, and in particular, we thank for all his efforts in the last years.</p> https://cncz.science.ru.nl/en/news/2024-05-30_science-software-licenses-url/ Thu, 30 May 2024 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2024-05-30_science-software-licenses-url/ <p>All license info, including the license codes, are now readily available for all Science users at <a href="https://cncz.pages.science.ru.nl/licenses/" target="_blank">the Science license overview page</a> for the Science software managed by C&amp;CZ.</p> https://cncz.science.ru.nl/en/cpk/1367/ Mon, 29 Apr 2024 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1367/ <p>Due to a configuration error the licenseserver for several of our licenses did not start automatically. Previously the server did autostart, however the cause of the configuration change is unknown. The configuration of the license server has been fixed.</p> https://cncz.science.ru.nl/en/cpk/1366/ Wed, 24 Apr 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1366/ <p>Due to some unexpected reaction to a config change, the licenseserver for several of our licenses was misconfigured for about 40minutes. The change was reverted, but it took long enough for users to run into license problems.</p> https://cncz.science.ru.nl/en/cpk/1365/ Thu, 18 Apr 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1365/ <p>Even though we closed <a href="https://cncz.science.ru.nl/en/cpk/1359/" target="_blank">CPK #1359</a>, the user&rsquo;s shares are not all restored. We have recovered the data from cephfs to temporary storage that is not accessible to users, it will take a bit more time to find new permanent locations for this data.</p> <p>The storage will not be cluster based anymore, but single server ZFS with snapshots.</p> https://cncz.science.ru.nl/en/cpk/1364/ Thu, 18 Apr 2024 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1364/ <p>Some of our network shares were temporarily unavailable earlier due to a configuration error. The issue has been resolved and all shares should be accessible now. We want to assure you that the configuration error that occurred did not impact the integrity or security of the data stored on the file server. We apologize for any inconvenience this may have caused. In the meantime, we&rsquo;re working on making information about network shares readily available on <a href="https://diy.science.ru.nl" target="_blank">DIY</a> for your reference.</p> https://cncz.science.ru.nl/en/news/2024-04-15_cephfs-retired/ Mon, 15 Apr 2024 10:05:14 +0200 Miek Gieben https://cncz.science.ru.nl/en/news/2024-04-15_cephfs-retired/ <p>After the <a href="https://cncz.science.ru.nl/en/cpk/1359/" target="_blank">storage downtime</a> of CephFS in our Ceph cluster, we decided together with the users of this service to stop offering CephFS shares through SMB and NFS.</p> <p>All data has been copied out of CephFS.</p> <p>We have ended the CephFS service. We will only use the Ceph cluster to store our backups, using the S3 API.</p> https://cncz.science.ru.nl/en/cpk/1363/ Mon, 15 Apr 2024 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1363/ <p>Some users may have experienced difficulty launching MATLAB this morning due to a temporary issue with the license server. We identified the problem and resolved it by manually restarting the server. MATLAB licensing should now be functioning normally. We apologize for any inconvenience this may have caused.</p> https://cncz.science.ru.nl/en/news/2024-04-09_superchown/ Tue, 09 Apr 2024 10:05:14 +0200 Miek Gieben https://cncz.science.ru.nl/en/news/2024-04-09_superchown/ <p>We have enabled a service called <strong>superchown</strong>. This service allows you as a volume owner to change the ownership of files in the volume. Previously, you would need to <a href="../../howto/contact">send an email</a> to make these changes, but with <strong>superchown</strong> you can do it yourself.</p> <p>Currently this is implemented as a command line utility that is available on the <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-login-servers">LILOs</a>. Its manual page has all the details:</p> <pre tabindex="0"><code>man superchown </code></pre><p>If you have further questions, or want to use <strong>superchown</strong>, please <a href="../../howto/contact">send us an email</a>.</p> https://cncz.science.ru.nl/en/news/2024-04-05_matlab-r2024a-available/ Fri, 05 Apr 2024 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2024-04-05_matlab-r2024a-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2024a, is available. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-share. All C&amp;CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2023b/bin/matlab) will be available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/cpk/1362/ Fri, 05 Apr 2024 00:00:00 +0200 Erik Visser https://cncz.science.ru.nl/en/cpk/1362/ <p>After migrating to a new mailbox server on Sunday, March 31, we noticed different behaviour in the processing of mailbox filters (by the Sieve software).</p> <p>Firstly, the &lsquo;include&rsquo; of global spam+virus filtering rules had a side-effect which has been fixed using a newer version of the software.</p> <p>Secondly, the default behaviour of the &lsquo;fileinto&rsquo; statement underwent a change: previously, it featured an implicit &lsquo;stop&rsquo; statement, but now it requires an explicit &lsquo;stop&rsquo; statement after the &lsquo;fileinto&rsquo; to achieve the same effect.</p> https://cncz.science.ru.nl/en/cpk/1361/ Mon, 01 Apr 2024 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1361/ <p><code>home1</code> had a problem with the nfs server after the reboot. Another reboot fixed it.</p> https://cncz.science.ru.nl/en/cpk/1360/ Fri, 22 Mar 2024 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1360/ <p>In Easter Weekend (March 30th 2024) the new mailserver will replace the old one. The final switch will take a short while, during which mail clients (eg Thunderbird, mail on your phone, etc.) will not be able to connect to the science mailserver. (This is a week later than announced, due to some issues that need to be resolved before final migration)</p> <p>Central mail services (Microsoft <code>@ru.nl</code>) are independent of our mailserver and thus will not be affected at all.</p> https://cncz.science.ru.nl/en/news/2024-03-22_maple-new-version-maple2024/ Fri, 22 Mar 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-03-22_maple-new-version-maple2024/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a>, Maple2024, for Windows/macOS/Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share and has been installed on C&amp;CZ managed Linux computers. License codes can be requested from C&amp;CZ helpdesk or postmaster.</p> https://cncz.science.ru.nl/en/news/2024-03-19_ni-labview-license-prolonged-and-new-version/ Tue, 19 Mar 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-03-19_ni-labview-license-prolonged-and-new-version/ <p>The license for the <a href="https://cncz.science.ru.nl/en/howto/labview/">LabVIEW</a> from <a href="https://ni.com" target="_blank">NI</a> has been prolonged until April 16, 2025. This license is for the versions 2022Q3 and higher, that use a subscription model.</p> <p>The new 2024Q1 software can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/" target="_blank">C&amp;CZ Install disc</a>. The license server is:</p> <pre><code>labview.science.ru.nl:28000 </code></pre> <p>In order to be able to check out a license, names of pc&rsquo;s and/of users have to be entered by C&amp;CZ in the license server. For remote pcs this DNS suffix has to be added to the IPv4 DNS configuration: science.ru.nl</p> https://cncz.science.ru.nl/en/news/2024-02-28_lilo-mem-limit/ Wed, 28 Feb 2024 09:15:00 +0100 Miek Gieben https://cncz.science.ru.nl/en/news/2024-02-28_lilo-mem-limit/ <p>The <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-loginservers" target="_blank">Lilo servers</a> are Linux servers for general use, with the caveat:</p> <blockquote> <p>You can use it just as you like, as long as you do not cause problems for other users.</p> </blockquote> <p>To help enforce this we are enabling a memory limit of 25% <em>per user</em>. This means a single user on lilo[78] can allocate up to 16 GiB.</p> https://cncz.science.ru.nl/en/news/2024-02-23_use-eduvpn-instead-of-science-vpns-vpnsec-and-openvpn/ Fri, 23 Feb 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-02-23_use-eduvpn-instead-of-science-vpns-vpnsec-and-openvpn/ <p>For RU students and employees, the <a href="https://www.surf.nl/en/services/eduvpn" target="_blank">SURF service eduVPN</a> has many advantages over the older Science VPNs: VPNsec and OpenVPN. It&rsquo;s very easy to <a href="https://www.ru.nl/en/staff/services/services-and-facilities/ict/working-off-campus/why-should-you-use-eduvpn/using-eduvpn" target="_blank">install and use eduVPN on Windows/macOS/Android/iOS/Linux</a> and you have access to all Science services that are also available through the Science VPNsec/OpenVPN. We list it on <a href="https://cncz.science.ru.nl/en/howto/vpn/">our VPN page</a> as the primary VPN to use.</p> <p>We advise users of the Science VPNs to <a href="https://www.ru.nl/en/staff/services/services-and-facilities/ict/working-off-campus/why-should-you-use-eduvpn/using-eduvpn" target="_blank">move over to eduVPN</a>.</p> https://cncz.science.ru.nl/en/news/2024-02-16_new-version-of-mathematica-14-0-0/ Fri, 16 Feb 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-02-16_new-version-of-mathematica-14-0-0/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (14.0.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>.</p> <p>When connected wired or wireless on campus or through <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>, the software for Windows, Linux and macOS can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>.</p> <p>During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 14.0 continues to expand the scope and breadth of our computational coverage while streamlining and polishing existing areas.&rdquo;</p> https://cncz.science.ru.nl/en/news/2024-02-16_sagemath-on-loginservers-and-jupyterhub-digital-security-and-math-clusternodes/ Fri, 16 Feb 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-02-16_sagemath-on-loginservers-and-jupyterhub-digital-security-and-math-clusternodes/ <p>The free open-source mathematics software system <a href="https://www.sagemath.org/" target="_blank">SageMath</a> version 9.5 has been installed on Science <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-login-servers" target="_blank">loginservers</a> and <a href="https://cncz.science.ru.nl/en/howto/jupyterhub/" target="_blank">JupyterHub</a>, Digital Security and Math <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#compute-serversclusters" target="_blank">clusternodes</a>.</p> <p>The mission of SageMath is to create viable free open source alternative to Magma, Maple, Mathematica and Matlab.</p> <p>SageMath builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and many more. Access their combined power through a common, Python-based language or directly via interfaces or wrappers.</p> https://cncz.science.ru.nl/en/news/2024-01-23_large-response-survey-services-c-cz/ Tue, 23 Jan 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2024-01-23_large-response-survey-services-c-cz/ <p>We are pleased that we received 330 completed surveys. Many of these were very positive. Some contained suggestions for improvements or new services. We&rsquo;ll analyze the results further in the next months.</p> https://cncz.science.ru.nl/en/cpk/1359/ Fri, 19 Jan 2024 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1359/ <p>Ceph filesystem failure.</p> <p>Services required for the CephFS filesytem cannot start. Failure of these services wil cause failure to access files on Ceph.</p> <p>We are in contact with our support party 42on to remedy the problem. Duration is currently unknown.</p> <h2 id="update-2024-01-22">Update 2024-01-22</h2> <p>We&rsquo;re working with 42on on the issue and have a meeting scheduled for 17:00 today.</p> <h2 id="update-2024-01-23">Update 2024-01-23</h2> <p>An initial <code>dentry_recover</code> was successful and according to 42on the Ceph journals are OK. We are hopeful that we can fix the issue with Ceph in the coming days.</p> https://cncz.science.ru.nl/en/howto/zfs-storage/ Fri, 12 Jan 2024 15:12:45 +0000 Miek Gieben https://cncz.science.ru.nl/en/howto/zfs-storage/ <p>A new storage option has been developed by C&amp;CZ. This page will show the technical details and properties of this storage, which will hopefully help you make a decision if this is something you want. Any storage we handout we call a &ldquo;volume&rdquo;. For these ZFS volumes:</p> <dl> <dt>Size</dt> <dd>Storage size can be as large as you want, but smaller than the amount we can put in a single machine. Currently (2024+) we can buy machines with roughly 140-200 TB storage.</dd> <dt>Snapshots</dt> <dd>On this we enable <a href="../zfs-share-snapshot/">snapshots</a>, so that you can retrieve (deleted) files your self.</dd> <dt>Backup</dt> <dd>Each volume will be back upped to local S3 storage. This should be thought of as disaster recovery, and restoring from the cloud should (hopefully) be rarely needed.</dd> </dl> <p><a href="https://dhz.science.ru.nl" target="_blank">All of these volumes are visible in DIY in the &ldquo;Storage&rdquo; section</a> if you have access to them. <a href="https://cncz.science.ru.nl/nl/howto/storage/#bestellen" target="_blank">How to order such storage can be seen here.</a></p> https://cncz.science.ru.nl/en/news/2023-12-13_short-survey-regarding-the-services-provided-by-c-cz/ Wed, 13 Dec 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-12-13_short-survey-regarding-the-services-provided-by-c-cz/ <p>We would like to draw your attention to <a href="https://u1.survey.science.ru.nl/index.php/515387?lang=en" target="_blank">a short survey regarding the services provided by C&amp;CZ</a>.</p> <p>We would really appreciate it if you would take a few minutes to provide us with feedback. Based on the results, we will determine how we can further improve our services for the faculty in the coming years.</p> <p>Thank you very much in advance for your response!</p> <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice note" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#note-notice"></use></svg></span>Note</p> https://cncz.science.ru.nl/en/news/2023-12-12-changes-in-smtp-policy/ Tue, 12 Dec 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-12-12-changes-in-smtp-policy/ <p>To counteract email spoofing, the following changes are forthcoming, affecting the way email can be sent.</p> <h2 id="science-smtp-authentication-requirement-from-specific-networks">Science SMTP authentication requirement from specific networks</h2> <p>Currently, it is possible to send emails via SMTP <em>without</em> authentication when connected to the campus network. For user devices, it has always been recommended to use <a href="../../howto/email/#outgoing-mail">authenticated SMTP</a>. Starting from January 8, 2024, C&amp;CZ will no longer allow unauthenticated SMTP from user networks. The first networks for which this policy will be enforced will be <a href="../../howto/netwerk-draadloos/">Eduroam</a> and <a href="../..//howto/vpn/">VPN</a>.</p> https://cncz.science.ru.nl/en/cpk/1358/ Mon, 11 Dec 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1358/ <p>On December 10, 2023 the main GitLab TLS certificate expired. A new certificate was generated, but it lacked a proper certificate chain. Browsers disregard that chain, but other GitLab components do care, which meant that the registry and the runners were unable to connect to GitLab.</p> <p>On Monday the 11th we renewed all certificates using Let&rsquo;s Encrypt. Let&rsquo;s Encrypt will also auto-renew these.</p> https://cncz.science.ru.nl/en/cpk/1357/ Wed, 06 Dec 2023 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1357/ <p><a href="https://jitsivm.science.ru.nl" target="_blank">Jitsi</a> (or actually the internal prosody service) had an old certificate, causing it to refuse startup after the normal reboot. The expired certificate was replaced and after a restart of the prosody service it works again.</p> https://cncz.science.ru.nl/en/cpk/1356/ Mon, 04 Dec 2023 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1356/ <p>After maintenance on the central routers, our servers on the 25Gbit network couldn&rsquo;t send traffic to the internet. The cause or nature of the problem appears to be in the central RU routing. By resetting the interface to our network, RU Connectivity can fix this, when it occurs again. RU Connectivity contacted their maintenance provider to investigate this problem.</p> <p>Final solution: After a few failed attempts, it was possible to define a static route in the central routers to our networks.</p> https://cncz.science.ru.nl/en/news/2023-12-01_maple-license-continued-as-2-concurrent-user-license/ Fri, 01 Dec 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-12-01_maple-license-continued-as-2-concurrent-user-license/ <p>The license of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a> has been continued in 2024 as a 2-user license. All FNWI employees and students are allowed to use Maple. If you want to use Maple, please contact <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/howto/cleanup-disk-space/ Fri, 24 Nov 2023 12:17:00 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/cleanup-disk-space/ <p>You might have received an email that your personal or group network disk is almost full. This articles describes some tools to identify large files/directories and cleanup disk space.</p> <h2 id="finding-large-files--directories-with-windirstat-graphical-windows">Finding large files / directories with WinDirStat (graphical, Windows)</h2> <p><img loading="lazy" src="https://cncz.science.ru.nl/img/2023/windirstat.png" alt="windirstat screenshot" /> </p> <p><a href="https://windirstat.net" target="_blank">WinDirStat</a> is a disk cleanup tool for Windows that provides a visual representation of disk space usage. It helps you to quickly identify and understand which files and folders are consuming the most space. The program offers detailed information about each file, including type, last modified date, and file path. In addition to visualization, WinDirStat includes built-in cleanup options, enabling you to directly delete or move files within the program.</p> https://cncz.science.ru.nl/en/news/2023-11-21_new-posterprinter-twice-as-fast/ Tue, 21 Nov 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-11-21_new-posterprinter-twice-as-fast/ <p>Because the old poster printer broke down, we ordered an HP Designjet Z6 44 inch postscript. The new printer is twice as fast, so the speed of service will be even better. See <a href="https://cncz.science.ru.nl/en/howto/print/#posters" target="_blank">the poster printer page</a> for all details.</p> https://cncz.science.ru.nl/en/cpk/1355/ Fri, 17 Nov 2023 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1355/ <p>Some users were unable to login, the server had become unstable, which made a reboot necessary. Unfortunately, the jupyterhub service still needs a manual startup, which didn&rsquo;t happen until 13:24 hours. The service is now working again. We are working to fix the reboot problem.</p> https://cncz.science.ru.nl/en/cpk/1354/ Thu, 09 Nov 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1354/ <p>A typo that could propagate to shutdown the DHCP server had the effect that some network devices did not get an IP address when they were switched on and that others, whose address lease expired in this period, lost their IP address and thus their access to the network..</p> <p>We&rsquo;ll improve the process to prevent a typo from bringing down the DHCP server in the future.</p> https://cncz.science.ru.nl/en/cpk/1353/ Wed, 08 Nov 2023 00:00:00 +0100 Bram Daams https://cncz.science.ru.nl/en/cpk/1353/ <p>After a scheduled reboot of the machine running jupyterhub, jupyter failed to start properly. The service started after invoking a manual start command. The measures taken to resolve this recurring problem have not proven to be sufficient.</p> https://cncz.science.ru.nl/en/howto/carbon-connects/ Thu, 02 Nov 2023 15:03:10 +0000 Eric Lieffers https://cncz.science.ru.nl/en/howto/carbon-connects/ <h2 id="project-carbon-connects">Project: Carbon Connects</h2> <h3 id="funding-party-nw-europe">Funding Party NW Europe</h3> <p>Link to official website: <a href="https://sites.google.com/view/c-toolbox/home" target="_blank">https://sites.google.com/view/c-toolbox/home</a></p> https://cncz.science.ru.nl/en/news/2023-10-27_new-intel-compilers-base-and-hpc-toolkits/ Fri, 27 Oct 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-10-27_new-intel-compilers-base-and-hpc-toolkits/ <p>The newest versions of the Intel compilers, available under the name <a href="https://www.intel.com/content/www/us/en/developer/tools/oneapi/hpc-toolkit.html" target="_blank">Intel oneAPI</a>, do no longer require a license, they are freely available. The 2023.2 version has been installed on C&amp;CZ managed Ubuntu systems, clusternodes with Ubuntu 22.04 and loginservers. When these compilers are available, the module command</p> <p>module avail</p> <p>will list among others “compiler/latest”. Then e.g. the Intel C (icc) and Fortran (ifort) compilers can be used after typing</p> <p>module add compiler/latest</p> https://cncz.science.ru.nl/en/cpk/1352/ Mon, 23 Oct 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1352/ <p>Due to a misconfiguration of the DNS in the z.science.ru.nl zone, all shares were not available during the outage.</p> <p>Extra tests are added to prevent a future occurrence.</p> https://cncz.science.ru.nl/en/cpk/1351/ Wed, 18 Oct 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1351/ <p>The router for most Science services urgently needs a reboot. This has been scheduled for early morning. In the unlikely case that this reboot fails, ILS Connectivity is on campus to fix it.</p> https://cncz.science.ru.nl/en/news/2022-09-01_new-version-of-originlabpro-2023b/ Tue, 10 Oct 2023 14:16:00 +0200 https://cncz.science.ru.nl/en/news/2022-09-01_new-version-of-originlabpro-2023b/ <p>A new version (2023b) of <a href="https://cncz.science.ru.nl/en/howto/originlab/">OriginLabPro</a>, software for scientific graphing and data analysis, can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk. See <a href="https://www.originlab.com/2023b" target="_blank">the website of OriginLab</a> for all info on the new version. The license server supports this new version. There is a support contract until August 2026. Departments within FNWI can request installation and license info from C&amp;CZ, also for standalone use. Installation on C&amp;CZ managed PCs is being planned. In case of questions contact <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/cpk/1350/ Mon, 02 Oct 2023 00:00:00 +0200 Erik Visser https://cncz.science.ru.nl/en/cpk/1350/ <p>In preparation of the migration to Microsoft Exchange Online Protection (MS EOP), we added another mail exchange server (mx5) to be addressed directly by MS EOP. However, having had mx4 in production for some time, we forgot to test mx5 in conjunction with our mailman server (zaaivm). This could result in a bounced mail &rsquo;not accepting messages&rsquo; for FNWI users (employees and students) using @ru.nl addresses.</p> <p>Meanwhile, mx5 has been made known to zaaivm thus resolving this issue.</p> https://cncz.science.ru.nl/en/cpk/1349/ Wed, 27 Sep 2023 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1349/ <p>After a scheduled reboot of the machine running jupyterhub, jupyter failed to start properly. The service started after invoking a manual start command.</p> https://cncz.science.ru.nl/en/cpk/1348/ Tue, 26 Sep 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1348/ <p>After an upgrade of Roundcube it was temporarily not possible to send e-mails.</p> <p>After a small change in the configuration file the problem was resolved.</p> https://cncz.science.ru.nl/en/news/2023-09-21_matlab-r2023b-available/ Sun, 24 Sep 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-09-21_matlab-r2023b-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2023b, is available. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-disc. All C&amp;CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2023a/bin/matlab) will be available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/cpk/1347/ Fri, 22 Sep 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1347/ <p>The poster printer kamerbreed was broken. It couldn&rsquo;t be fixed, so we ordered a new HP Designjet Z6 44 inch postscript. The ordering and delivery took way too long, the new poster printer was in operation on November 13. The new printer is twice as fast, so the speed of service will be even better.</p> <p>When our poster printer breaks down, users that need posters can go to <a href="https://www.ru.nl/en/services/services-and-facilities/shops/post-print" target="_blank">Radboud Post&amp;Print</a>.</p> https://cncz.science.ru.nl/en/cpk/1346/ Wed, 20 Sep 2023 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1346/ <p>For an unknown reason, the Jupiter and Chemotion servers didn&rsquo;t start. We are currently looking at how we can start the machine again.</p> <p>The virtual machines have been rebuild, based on their existing disks.</p> https://cncz.science.ru.nl/en/cpk/1345/ Mon, 18 Sep 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1345/ <p>Ceph filesystem storage is experiencing reduced performance, because one of the storage nodes is currently offline. A combination of factors causes this to affect performance, fullness, uneven distribution of data over the storage nodes. We expect this to be resolved when the node is back in the cluster.</p> <h3 id="update-7-oct-2023">update 7 Oct 2023</h3> <p>The cluster is mostly complete again for a while already, but there&rsquo;s a lot of remaining issues to be resolved by the cluster. Performance may or may not be affected&hellip;</p> https://cncz.science.ru.nl/en/news/2023-09-17_lilo-and-stitch-swapped-lilo8-becomes-lilo/ Sun, 17 Sep 2023 23:03:00 +0200 https://cncz.science.ru.nl/en/news/2023-09-17_lilo-and-stitch-swapped-lilo8-becomes-lilo/ <p>On October 2, the newest login server lilo8, that runs the same version of Ubuntu as the pcs in the computer labs, Ubuntu 22.04, will become the default lilo.science.ru.nl loginserver. Lilo7, with Ubuntu 20.04, will then get tha alias &lsquo;stitch&rsquo; for the alternate loginserver.</p> <p>To prevent warning messages about changed fingerprints, read <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">the page about servers</a> and/or <a href="https://cncz.science.ru.nl/en/howto/ssh/">the SSH info page</a>.</p> https://cncz.science.ru.nl/en/cpk/1344/ Thu, 14 Sep 2023 00:00:00 +0200 Erik Visser https://cncz.science.ru.nl/en/cpk/1344/ <p>The RU contract with the anti-SPAM/anti-phishing service Proofpoint expired September 21, 2023, which means that &lsquo;Proofpoint End User Digest&rsquo; mails are not sent anymore after that date.</p> <p>C&amp;CZ is <a href="https://www.ru.nl/en/about-us/news/email-inbox-phishing-filter-to-change-as-from-25-july" target="_blank">migrating</a> Science mailboxes to the anti-SPAM/anti-phishing service of Microsoft Exchange Online Protection. There is an increased chance of receiving SPAM/phishing mails in the Science mailbox during this migration period.</p> <p>P.S. the RU central mailboxes (with addresses ending in @ru.nl) have already been migrated to Microsoft Exchange Online Protection.</p> https://cncz.science.ru.nl/en/news/2023-09-14_science-logins-automatically-disabled-when-end-date-reached/ Thu, 14 Sep 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-09-14_science-logins-automatically-disabled-when-end-date-reached/ <p>In accordance with new RU policy, from November 1, Science login accounts will be disabled automatically when the end date is reached. From that moment it is not possible to use that account for C&amp;CZ services.</p> <ul> <li>One month <strong>before</strong> the end date, the responsible contact person will be notified.</li> <li>If the end date is only <strong>two weeks</strong> ahead, the account holder will be notified.</li> <li>One month <strong>after</strong> the end date, the account will be removed from C&amp;CZ managed services like the Science mailservice and homedirectory.</li> </ul> <p>It is advisable for contact persons to take a more pro-active approach to maintaining the end-dates of the accounts they are responsible for, to prevent accidental disabling of accounts. Continuation of an account can also be a security risk, so end-dates should not be extended unreasonably long.</p> https://cncz.science.ru.nl/en/howto/quota/ Wed, 13 Sep 2023 17:07:00 +0000 Ben Polman https://cncz.science.ru.nl/en/howto/quota/ <p>Your personal quota only determine the amount of disk space your own data may occupy and the number of files and folders you may have on your Windows <code>U:\</code> disk or Linux home directory. Quotas may be active on other disks as well, however not all disks have quotas. The mail servers also use quotas to limit the disk space of each user’s mailbox.</p> <h2 id="windows">Windows</h2> <p>On Windows desktops where the home directory is available as U: or H: disk right click on the disk, then choose <code>Properties</code> to view the amounts of used and available personal disk space in kbytes.</p> https://cncz.science.ru.nl/en/cpk/1343/ Thu, 07 Sep 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1343/ <p>The Science newsletter is sent from an @ru.nl mail-account. Recently, the @ru.nl mailservice was changed by adding <a href="https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/eop-about?view=o365-worldwide" target="_blank">Exchange Online Protection (EOP)</a>. EOP is the successor for Radboud University to the <a href="https://www.proofpoint.com/us" target="_blank">Proofpoint e-mail security filter</a>. EOP added a mail header line to the newsletter</p> <p><code>List-Unsubscribe: https://c8ce19ec62454d21b73b7d5a25559d8f.svc.dynamics.com/t/lu/7...</code></p> <p>which made the mail appear to be spam to the Science spamfilter SpamAssassin.</p> <p><code>1.1 URI_HEX URI: URI hostname has long hexadecimal sequence</code></p> <p>When we noticed this, we fixed it by welcome listing (allowlisting/passlisting) the sender address <a href="mailto:communications-science@ru.nl">communications-science@ru.nl</a> on September 7, so this mail will never be falsely classified as spam. The Radboud Weekly newsletter had the same problem, so <a href="mailto:communicatie@ru.nl">communicatie@ru.nl</a> was also put on the welcome list on September 14.</p> https://cncz.science.ru.nl/en/cpk/1342/ Mon, 04 Sep 2023 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1342/ <p>After the Monday morning reboot, the NFS server on home1 refused to start properly. We are investigating why a manual restart of nfs was needed.</p> https://cncz.science.ru.nl/en/howto/module-command-for-optional-software-versions/ Fri, 25 Aug 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/howto/module-command-for-optional-software-versions/ <p>On C&amp;CZ managed Ubuntu hosts, the &ldquo;module&rdquo; command is available. This makes it easy to use specific versions of available software.</p> <p>To view which modules are available, use:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sh" data-lang="sh"><span style="display:flex;"><span>module avail </span></span></code></pre></div><p>and to use Matlab-R2023a:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sh" data-lang="sh"><span style="display:flex;"><span>module add Matlab-R2023a<span style="color:#e6db74">`</span> </span></span></code></pre></div><p>For more info, see <a href="https://modules.readthedocs.io/en/v5.3.1/module.html" target="_blank">the Environment Modules website</a>.</p> https://cncz.science.ru.nl/en/news/2023-08-24_new-version-of-mathematica-13-3-1/ Thu, 24 Aug 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-08-24_new-version-of-mathematica-13-3-1/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (13.3.1) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>.</p> <p>When connected wired or wireless on campus or through <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>, the software for Windows, Linux and macOS can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>.</p> <p>During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 13.3.1 includes multiple critical bug fixes and improvements to Chat-Enabled Notebook stability and usability.&rdquo;</p> https://cncz.science.ru.nl/en/cpk/1341/ Tue, 22 Aug 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1341/ <p>RU mail management let us know that yesterday the forwarding to external (non-RU) mail addresses has been stopped as announced earlier. Unfortunately, mail for several dozens of Science users was/is not forwarded to the Science mailservers. These mails can still be found in MS365 (RU mail), either in the Inbox or in the Deleted Items. RU mail management promised that the forwarding will be corrected tomorrow.</p> https://cncz.science.ru.nl/en/news/2023-08-22_missed-ru-mail-due-to-stopped-external-forwarding/ Tue, 22 Aug 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-08-22_missed-ru-mail-due-to-stopped-external-forwarding/ <p>RU mail management let us know that yesterday the forwarding to external (non-RU) mail addresses has been stopped as announced earlier. Unfortunately, mail for several dozens of Science users was/is not forwarded to the Science mailservers. These mails can still be found in MS365 (RU mail), either in the Inbox or in the Deleted Items. RU mail management promised that the forwarding will be corrected tomorrow.</p> <p>Automatic forwarding from Science mail by employees and students to external addresses has been stopped on August 22.</p> https://cncz.science.ru.nl/en/cpk/1340/ Mon, 14 Aug 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1340/ <p>Announcement of maintenance, Wednesday afternoon we are going to replace the cpu of one of our main vmhost servers, meaning vms</p> <p>gitlab9 (pep) slurm22 pep3 jitsivm poliep indicoimapp2vm pep4 mariavm01 smtp2</p> <p>will be down for up to 1 hour. several services depend on the mariavm01 (websites, slurm), so they will be affected too.</p> https://cncz.science.ru.nl/en/cpk/1339/ Tue, 01 Aug 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1339/ <p>Apologies for the short notice, we are now going to replace the motherboard of one of our main vmhost servers, meaning vms</p> <p>gitlab9 (pep) slurm22 pep3 jitsivm poliep indicoimapp2vm pep4 mariavm01 smtp2</p> <p>will be down for up to 1 hour. several services depend on the mariavm01 (websites, slurm), so they are affected too.</p> https://cncz.science.ru.nl/en/cpk/1338/ Thu, 27 Jul 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1338/ <p>Our daily backup system relies on cephfs storage, which is currently offline, see <a href="https://cncz.science.ru.nl/en/cpk/1337/" target="_blank">CPK#1337</a>.</p> <p>This means that as of July 22nd we are unable to perform or restore <em>daily</em> backups. When the cephfs problems are resolved the daily backups should also be OK and restorable again.</p> <p>NB, this has no effect on the <em>Monthly</em> backups, which continue to work normally.</p> https://cncz.science.ru.nl/en/cpk/1337/ Sat, 22 Jul 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1337/ <p>After the <a href="https://cncz.science.ru.nl/en/cpk/1333/" target="_blank">power down</a> of the Huygens building we are experiencing a problem with bringing Ceph file system back online.</p> <p>We currently do not know when the Ceph cluster is operational again.</p> <h2 id="update-2023-08-01-1030">Update 2023-08-01 10:30</h2> <p>Ceph is working again. This CPK is now closed. <a href="https://cncz.science.ru.nl/en/cpk/1338/" target="_blank">CPK#1338</a> is also closed.</p> <h2 id="update-2023-07-31-1230">Update 2023-07-31 12:30</h2> <p>After some more support from 42on, we managed to restart the cephfs, we cannot be sure all files are there, but almost all files are. Please let us know if you are missing crucial data, in theory we can find and restore the data, though we have to process 500 million entries to find it, which will take a long time.</p> https://cncz.science.ru.nl/en/news/2023-07-11_new-3d-printer-prusa-mk4-faster-and-more-precise/ Tue, 11 Jul 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-07-11_new-3d-printer-prusa-mk4-faster-and-more-precise/ <p>The <a href="https://cncz.science.ru.nl/en/howto/print/#3d-printen" target="_blank">3D printservice</a> has been upgraded with the addition of a <a href="https://www.prusa3d.com/product/original-prusa-mk4-2/" target="_blank">Prusa MK4</a>.</p> https://cncz.science.ru.nl/en/howto/zfs-share-snapshot/ Wed, 05 Jul 2023 15:12:45 +0000 Miek Gieben https://cncz.science.ru.nl/en/howto/zfs-share-snapshot/ <p>Network shares with <a href="https://openzfs.org/wiki/Main_Page" target="_blank">ZFS</a> as file system have the ability (which C&amp;CZ switches on by default) to make <em>snapshots</em>.</p> <p>A <em>snapshot</em> is a read-only copy of the share, made at a specific point in time. Such snapshots allow you to find previous versions of your files. On most shares, snapshots go back 45 days. After that period they are removed.</p> <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice tip" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#tip-notice"></use></svg></span>Tip</p> https://cncz.science.ru.nl/en/cpk/1336/ Tue, 04 Jul 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1336/ <p>The <a href="../../howto/vpn">VPNsec service</a> will be moved to a new server. This move will cause downtime and existing VPN connections will be destroyed. Downtime is expected not to exceed several minutes.</p> https://cncz.science.ru.nl/en/cpk/1335/ Mon, 03 Jul 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1335/ <p>Last friday, a change in the mailman configuration has been rolled out which had the inadvertent effect that mails were not delivered to external addresses anymore. However, these mailman posts were sent successfully to internal Science mail addresses.</p> <p>The change has been rolled back for the moment but is a necessity meaning that we&rsquo;re looking for another solution.</p> https://cncz.science.ru.nl/en/news/2023-06-30_new-version-of-mathematica-13-3-0/ Fri, 30 Jun 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-06-30_new-version-of-mathematica-13-3-0/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (13.3.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>.</p> <p>When connected wired or wireless on campus or through <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>, the software for Windows, Linux and macOS can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>.</p> <p>During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 13.3 introduces new functions that utilize large language models, as well as expands functionality for machine learning, mathematical computations, foreign function interface and more.&rdquo;</p> https://cncz.science.ru.nl/en/cpk/1334/ Tue, 27 Jun 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1334/ <p>The connecting router (dr-huyg) for all servers in the subnets <code>131.174.30.0/24</code>, <code>131.174.31.0/24</code> and <code>131.174.16.128/26</code> will be replaced.</p> <p>It is expected that this will cause an interruption of ca. 10 minutes in the connectivity, but unforeseen circumstances may increase this delay.</p> <p>The reason to do this now is because of the planned power interruption on July 22. The old router hardware has a high probability of failing to survive this.</p> https://cncz.science.ru.nl/en/cpk/1333/ Tue, 20 Jun 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1333/ <p>Friday July 21 from 17:00, we will start shutting down compute clusternodes, in order to prepare for the <a href="https://www.ru.nl/en/about-us/news/saturday-22-july-closure-of-huygens-building-due-to-power-outage" target="_blank">power outage of the Huygens building Saturday July 22</a>. Other servers will be shut down later. The most important servers (mail, home, file, Ceph, gitlab, loginservers) will be shutdown starting Saturday morning 7:00. We will try to keep basic services (DNS/DHCP, SMTP(mail) and license servers) up during this power outage. RU services are not serviced from the Huygens building, so will not be affected.</p> https://cncz.science.ru.nl/en/cpk/1332/ Thu, 15 Jun 2023 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/cpk/1332/ <p>Due to the expiration of an LDAP certificate, it is temporarily not possible to log in to various services. A new certificate is being installed urgently.</p> <p>Affected services include Eduroam in combination with Science logins, VPN, GitLab and Mattermost.</p> https://cncz.science.ru.nl/en/cpk/1331/ Wed, 14 Jun 2023 00:00:00 +0200 Eric Lieffers https://cncz.science.ru.nl/en/cpk/1331/ <p>Due to a failure in a power distribition unit (pdu) the servers felixdisk and bioboost went down.</p> <p>Both servers have been connected to another pdu and are now working again.</p> https://cncz.science.ru.nl/en/cpk/1330/ Mon, 12 Jun 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1330/ <p>The planned routing change, which should not have caused issues for more than a few seconds, didn&rsquo;t work as planned and caused problems for up to 15 minutes.</p> <h2 id="update-2023-06-12---2200">Update 2023-06-12 - 22:00</h2> <p>The situation has become worse, some problems: DNS resolving, some fileservers and jupyterhub are having problems due to the network change. We will attempt to resolve the issue asap.</p> <h2 id="update-2023-06-13---1130">Update 2023-06-13 - 11:30</h2> <p>After correcting errors (fixed IP addresses) all services are up again. The network configuration is not redundant yet, but user problems should be over.</p> https://cncz.science.ru.nl/en/cpk/1329/ Wed, 31 May 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1329/ <p>Our smtp mailservers were under attack. In order to prevemt other problems, our configuration limits the number of connections that can be kept open at the same time. We cannot easily distinguish between connections by the attacker(s) and by regular users. When this limit is reached, no new connections can be made.</p> <p>Therefore sending e-mail using our mailservers can take a long time or will not work at all. There&rsquo;s a good chance that your IP address will be blocked (max. 1 hour), e.g. if you use <a href="mailto:loginname@science.ru.nl">loginname@science.ru.nl</a> after June 8, 16:25.</p> https://cncz.science.ru.nl/en/cpk/1328/ Tue, 30 May 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1328/ <p>The datacenter cooling failed around 07:00 this morning. To prevent damage all non-essential systems are being turned off (clusternodes first).</p> <p>Most fileservers have also been turned off. Due to the urgency, some systems that have been turned off may not be in the location with the problem (Huygens HG04.070).</p> <p>Around 07:50 the cooling system came online again, about 30 minutes later the temperature dropped to under 25 degrees Celsius.</p> <p>After ca. 8:35, we started turning systems back on, starting with fileservers and later clusternodes as well. This is now nearly finished. Some hardware cannot easily be managed remotely so that will take a bit longer until someone can turn on the power manually.</p> https://cncz.science.ru.nl/en/news/2023-05-16_new-computer-lab-pc-s-and-ubuntu-22-04-during-summer-break/ Tue, 16 May 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-05-16_new-computer-lab-pc-s-and-ubuntu-22-04-during-summer-break/ <p>During the summer break all pcs in the <a href="https://cncz.science.ru.nl/en/howto/terminalkamers/" target="_blank">computer labs</a> will be replaced, because they are between four and seven years old. The new pcs will again be dual-boot, with Windows10 22H2 and Ubuntu 22.04. Lecturers who want to test their Linux course software, can do so on the Linux loginserver lilo8, that has Ubuntu 22.04. The new pcs are <a href="https://www.dell.com/nl-nl/shop/desktops-en-werkstations/optiplex-7400-all-in-one/spd/optiplex-7400-aio/" target="_blank">Dell Optiplex 7400 All-In-One</a>.</p> <p>For employees with pcs with older versions of Ubuntu, this might be a good time to upgrade to Ubuntu 22.04 too. Please <a href="https://cncz.science.ru.nl/en/howto/contact">contact C&amp;CZ</a> to schedule the upgrade.</p> https://cncz.science.ru.nl/en/cpk/1327/ Tue, 16 May 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1327/ <p>On Saturday July 22, all power, including emergency power, in the Huygens building will be switched off for planned maintenance from 08:00 until 12:30. If all goes well, power will be available from 12:30. We expect to need at least a few hours to get all Science services up again. During this time, all but a few basic services will be unavailable. Most servers will be turned off the Friday before. We will attempt to maintain basic DNS/DHCP, SMTP(mail) and license services, but for instance the science mailboxes, home directories, websites, VPN, fileservers, Gitlab, loginservers and compute clusters will not be available during the off period.</p> https://cncz.science.ru.nl/en/news/2023-05-08_lilo6-eol/ Mon, 08 May 2023 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/news/2023-05-08_lilo6-eol/ <p>The login server <code>lilo6</code> with Ubuntu 18.04 has been turned off. Login servers are available during the support lifetime of the Linux version we install on them when a new long term support (LTS) version is released. We always provide current OS versions on the login servers, the version installed on our terminal PC&rsquo;s is also on the login server called <code>lilo.science.ru.nl</code>. When newer LTS versions are available we also install a new <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-login-servers">login server</a>.</p> https://cncz.science.ru.nl/en/cpk/1326/ Thu, 20 Apr 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1326/ <p>RU ILS Connectivity announced that Friday April 21 between 18:30 and 20:30 the RU network would be separated from the internet for a period of ca 30 minutes, in order to carry out maintenance.</p> https://cncz.science.ru.nl/en/cpk/1325/ Thu, 13 Apr 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1325/ <p>Friday`April 21 at 10 o’clock C&amp;CZ will commence a GitLab server migration. During the migration, working with Gitlab will not be possible.</p> <p>Because Mattermost is running on the same installation of Gitlab, it will be unavailable during the process as well.</p> <p>We expect things to be up and running again around noon.</p> https://cncz.science.ru.nl/en/news/2023-04-11_c-cz-move-to-ground-floor-of-huygens/ Tue, 11 Apr 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2023-04-11_c-cz-move-to-ground-floor-of-huygens/ <p>In the week of April 17, C&amp;CZ will to move to the new offices in wing 5 on the ground floor of the Huygens building. The C&amp;CZ helpdesk will still have an entrance on the main street at <code>HG00.051</code>. See also our <a href="https://cncz.science.ru.nl/en/howto/contact">contact info</a>.</p> https://cncz.science.ru.nl/en/cpk/1324/ Tue, 11 Apr 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1324/ <p>RU ILS Connectivity announced that network maintenance will be carried out next Wednesday evening that will cause short disturbances of network connectivity for wired and wireless systems in and around wing 8 Huygens on all floors. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 113- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/cpk/1322/ Thu, 30 Mar 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1322/ <p>RU ILS Connectivity announced that network maintenance will be carried out next Monday evening that will cause short disturbances of network connectivity for wired and wireless systems in and around wing 3 Huygens on all floors except the ground floor. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 107- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/cpk/1323/ Thu, 30 Mar 2023 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1323/ <p>RU ILS Connectivity announced that network maintenance will be carried out next Wednesday evening that will cause short disturbances of network connectivity for wired and wireless systems in and around wing 7 Huygens on all floors except the ground floor. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 110- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/news/2023-03-26_cncz-heidag-dinsdag-28-maart/ Sun, 26 Mar 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-03-26_cncz-heidag-dinsdag-28-maart/ <p>An awayday for the C&amp;CZ department is scheduled for Tuesday March 28. C&amp;CZ can be reached in case of serious disruptions of services.</p> https://cncz.science.ru.nl/en/cpk/1321/ Fri, 24 Mar 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1321/ <p>March 20, the poster printer kamerbreed started producing bad colours. The new print heads that were received a fw days later didn&rsquo;t solve the problem. Therefore we called for a repair, that will probably be scheduled in the week of April 17.</p> <p>In the meantime, users that need posters could go to <a href="https://www.ru.nl/en/services/services-and-facilities/shops/post-print" target="_blank">Radboud Post&amp;Print</a>.</p> https://cncz.science.ru.nl/en/news/2023-03-21_matlab-r2023a-available/ Tue, 21 Mar 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-03-21_matlab-r2023a-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2023a, is available for departments that have licenses. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-disc. All C&amp;CZ-managed Linux machines have this version installed, an older version (/opt/matlab-R2022b/bin/matlab) is still available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/news/2023-03-16_maple-new-version-maple2023/ Thu, 16 Mar 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-03-16_maple-new-version-maple2023/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a>, Maple2023, for Windows/macOS/Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share and has been installed on C&amp;CZ managed Linux computers. License codes can be requested from C&amp;CZ helpdesk or postmaster.</p> https://cncz.science.ru.nl/en/news/2023-03-10_migrating-external-gitlab-accounts/ Fri, 10 Mar 2023 00:00:00 +0100 Bram Daams https://cncz.science.ru.nl/en/news/2023-03-10_migrating-external-gitlab-accounts/ <p>Starting March 2023, external GitLab users of <a href="https://gitlab.science.ru.nl" target="_blank">gitlab.science.ru.nl</a> will be migrated to Science logins that only have access to GitLab.</p> <p>Until now, external GitLab logins were created in GitLab itself, separate from the Science login administration. By migrating the external GitLab users to Science logins with access to GitLab only, the management of these logins is improved. The requester (responsible for the Science login) can manage these logins in <a href="https://dhz.science.ru.nl" target="_blank">DIY</a>.</p> <p>For external user of GitLab that are still required after April 1, 2023, Science logins with GitLab access only can be requested, see <a href="https://cncz.science.ru.nl/en/howto/login/#request-a-science-login">Science login requests</a>. Specify which existing GitLab account is to be migrated, then we will link it to the new Science login.</p> https://cncz.science.ru.nl/en/cpk/1319/ Fri, 03 Mar 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1319/ <p>RU ILS Connectivity announced that network maintenance will be carried out next Monday evening that will cause short disturbances of network connectivity for wired and wireless systems in and around wing 3 Huygens and in tunnels/basement of the former A1 building. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 109- and 73- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/cpk/1320/ Fri, 03 Mar 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1320/ <p>RU ILS Connectivity announced that network maintenance will be carried out next Wednesday evening that will cause short disturbances of network connectivity for wired and wireless systems in Goudsmit/NMR and Nanolab. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 72- or 116- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/cpk/1318/ Fri, 24 Feb 2023 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1318/ <p>The network configuration change of Thursday evening caused wired network connections to fail getting an IP address. The wireless network didn&rsquo;t have that problem.</p> <p>Technically, the dhcp options we&rsquo;re using were not yet allowed on the new distribution switch (DR-H).</p> <p>Update: the problem should be resolved, but in case of problems, please try rebooting the machine to resolve the issue.</p> https://cncz.science.ru.nl/en/cpk/1317/ Thu, 23 Feb 2023 00:00:00 +0100 Wim Janssen https://cncz.science.ru.nl/en/cpk/1317/ <p>Because of problems and reacheability machine rebooted.</p> <p>Cause of problem remains unknown.</p> https://cncz.science.ru.nl/en/cpk/1316/ Tue, 21 Feb 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1316/ <p>Thursday evening between 19:00 and 21:00, all wired and wireless user networks in Huygens, Goudsmit/NMR, Nanolab and FELIX-HFML will be switched to a new router. A downtime of ca. 10 minutes is expected.</p> https://cncz.science.ru.nl/en/news/2023-02-17_new-version-of-mathematica-13-2-1/ Fri, 17 Feb 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-02-17_new-version-of-mathematica-13-2-1/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (13.2.1) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>.</p> <p>When connected wired or wireless on campus or through <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>, the software for Windows, Linux and macOS can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>.</p> <p>During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 13.2.1 includes over a hundred bug fixes, feature enhancements, performance improvements and security updates.&rdquo;</p> https://cncz.science.ru.nl/en/news/2023-02-14_ni-labview-2022q3-and-higher-use-a-subscription-license/ Tue, 14 Feb 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-02-14_ni-labview-2022q3-and-higher-use-a-subscription-license/ <p>There is a new version of <a href="https://cncz.science.ru.nl/en/howto/labview/">LabVIEW</a> from <a href="https://ni.com" target="_blank">NI.com</a>, version 2022Q3.</p> <p>NI.com communicated that they will move to a <a href="https://www.ni.com/en/landing/subscription-software.html" target="_blank">subscription model for LabVIEW licencing</a> starting with version 2022Q3. C&amp;CZ manages a FlexNet license server for LabVIEW 2022Q3, with a limited number of licenses and a deadline in April for extension of the license. Earlier versions of LabVIEW work standalone and unlimited in terms of time.</p> <p>The software can be found on the <a href="https://install.science.ru.nl/science/NI%20LabVIEW/" target="_blank">C&amp;CZ Install disc</a>. The license server is:</p> https://cncz.science.ru.nl/en/news/2023-02-14_unlimited-mathematica-license-in-2023-for-ru-staff-and-students/ Tue, 14 Feb 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-02-14_unlimited-mathematica-license-in-2023-for-ru-staff-and-students/ <p>The license for <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> has been expanded temporarily to an unlimited campus license for the whole of 2023: all employees and students may use Mathematica unlimitedly in 2023 on the RU network. For home use, one must therefore use a <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPN</a>.</p> <p>The software can be found on the <a href="https://install.science.ru.nl/science/Mathematica/" target="_blank">C&amp;CZ Install disc</a>. During the installation you must specify:</p> <pre><code> License server: mathematica.science.ru.nl License: L4601-6478 </code></pre> <p>The introductory course <a href="https://can.nl/events/mathematica-basic-principles/" target="_blank">&ldquo;Mathematica Basic Principles: An Introduction&rdquo;</a> can be taken for free at CANdiensten in Amsterdam.</p> https://cncz.science.ru.nl/en/cpk/1315/ Fri, 10 Feb 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1315/ <p>RU ILS Connectivity announced that network maintenance will be carried out next Wednesday evening that will cause short disturbances of network connectivity for wired and wireless systems in and around Wing 5 Huygens. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 111- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/cpk/1314/ Mon, 06 Feb 2023 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1314/ <p>After the scheduled reboot of the <code>home2</code> server, the nfs service failed to start. A manual reboot solved the problem.</p> https://cncz.science.ru.nl/en/howto/remote-assistance/ Fri, 27 Jan 2023 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/howto/remote-assistance/ <p>C&amp;CZ helpdesk can assist you by taking over your screen using <em>TeamViewer</em>. In case you are requested to download TeamViewer, use the following link:</p> <blockquote> <p><a href="https://get.teamviewer.com/ischelpdesk" target="_blank">https://get.teamviewer.com/ischelpdesk</a></p> </blockquote> https://cncz.science.ru.nl/en/cpk/1313/ Thu, 26 Jan 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1313/ <p>RU ILS Connectivity announced that network maintenance will be carried out next Monday (Wing 1) and Wednesday (Wing 2) evening that will cause short disturbances of network connectivity for wired and wireless systems in Huygens. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 105- for Wing 1 affected systems and 106- for Wing 2) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/news/2023-01-24_network-maintenance-huygens-nmr-nanolab-hfml-felix-january-april-2023/ Tue, 24 Jan 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2023-01-24_network-maintenance-huygens-nmr-nanolab-hfml-felix-january-april-2023/ <p>RU ILS Connectivity is replacing network access switches in FNWI. This causes short disturbances of network connectivity for wired and wireless systems on several evenings between 19:00 and 23:00 hours for affected wings/locations, i.e. connected to a specific SER (Satellite Equipment Room). For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with the SER number for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/cpk/1312/ Sun, 22 Jan 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1312/ <p>ILS Connectivity announced that network maintenance will be carried out next Monday evening that will cause short disturbances of network connectivity for wired and wireless systems in and near wing 4 of the Huygens building. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 108- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/news/2023-01-19_jitsi-only-authenticated/ Thu, 19 Jan 2023 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/news/2023-01-19_jitsi-only-authenticated/ <h1 id="science-jitsi-security">Science Jitsi Security</h1> <p>As of January 18th, 2023, starting a <a href="https://jitsi.science.ru.nl/" target="_blank">jitsi</a> meeting room requires you to authenticate with your <a href="https://cncz.science.ru.nl/en/howto/login">science login</a> and password. Guests do not require any authentication once the session is running. <a href="https://en.wikipedia.org/wiki/Jitsi" target="_blank">Jitsi</a> is a collection of free and open-source multiplatform voice (VoIP), video conferencing and instant messaging applications for the web platform, Windows, Linux, macOS, iOS and Android, of which Jitsi Meet videoconferencing is the most well-known.</p> https://cncz.science.ru.nl/en/howto/mount-a-network-share/ Mon, 16 Jan 2023 15:12:45 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/mount-a-network-share/ <h1 id="what-path-to-mount">What path to mount?</h1> <p>The <a href="../storage">storage page</a> describes the paths for your <a href="../storage#home-directory-paths">home directory</a> and <a href="../storage#network-share-paths">network shares</a>. Once you know what network share to mount, follow the steps for your operating system below.</p> <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice info" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#info-notice"></use></svg></span>Info</p> https://cncz.science.ru.nl/en/cpk/1311/ Fri, 13 Jan 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1311/ <p>ILS Connectivity announced that network maintenance will be carried out on the internet connection of Radboud University on February 10 between 18:00 and 23:00. Network connections may be disturbed several times, each lasting less than 15 minutes.</p> https://cncz.science.ru.nl/en/cpk/1310/ Thu, 12 Jan 2023 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1310/ <p>ILS Connectivity announced that network maintenance will be carried out next Monday evening that will cause short disturbances of network connectivity for wired and wireless systems in and near wing 6 of the Huygens building. For wired network outlets, one can check whether they will be affected by looking at the outlet number (starting with 112- for affected systems) or visiting <a href="https://cncz.science.ru.nl/en/howto/netwerk-ethergids/" target="_blank">FNWI ethergids</a>.</p> https://cncz.science.ru.nl/en/howto/thuiswerken/ Wed, 11 Jan 2023 09:28:26 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/thuiswerken/ <p>Also see the <a href="https://www.ru.nl/ict-uk/staff/working-from-home/" target="_blank">working from home</a> page provided by the central IT Service Centre.</p> <h2 id="email">Email</h2> <p>User <a href="https://cncz.science.ru.nl/en/howto/email">webmail or your local e-mail client</a>.</p> <h2 id="library">Library</h2> <p>How to get <a href="https://www.ru.nl/library/services/study/access-digital-library/" target="_blank">access to the University Library (when you are off-campus)</a>.</p> <h2 id="bass">BASS</h2> <p><a href="https://cncz.science.ru.nl/en/howto/bass">BASS</a> can only be accessed directly from the campus network or through <a href="https://cncz.science.ru.nl/en/howto/vpn">VPN</a> from any Internet location. Note however that from a small part of the subnets at the Faculty of Science, direct access to BASS is not possible. These subnets are the ones with servers that can be accessed from the Internet.</p> https://cncz.science.ru.nl/en/news/2022-12-23_new-version-of-mathematica-13-2-0/ Fri, 23 Dec 2022 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2022-12-23_new-version-of-mathematica-13-2-0/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (13.2.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>. The installation files for Windows, Linux and macOS can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk, also for older versions of Mathematica. Installation and license info can be <a href="https://cncz.science.ru.nl/en/howto/contact/">requested from C&amp;CZ</a>.</p> <p>According to the <a href="https://www.wolfram.com/mathematica/quick-revision-history.html" target="_blank">Mathematica Quick Revision History</a>: &ldquo;Version 13.2 introduces new functionality in astronomy and compilation, as well as substantially enhancing functions for machine learning, trees, mathematical computations, video and more. This release also includes over a thousand bug fixes, documentation enhancements and significant performance improvements.&rdquo;</p> https://cncz.science.ru.nl/en/howto/ssh/ Wed, 21 Dec 2022 13:20:00 +0000 https://cncz.science.ru.nl/en/howto/ssh/ <h2 id="ssh-secure-shell">SSH Secure Shell</h2> <p>SSH is used to get a secure terminal-connection to a login server. All <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">Linux loginservers</a> can be reached with SSH client software.</p> <p><strong>NB: as of December 2022, not all science logins are allowed to login on the login servers anymore</strong>. Should you have trouble logging in on our loginservers, <a href="https://cncz.science.ru.nl/en/howto/contact/">please contact postmaster</a>.</p> <h3 id="recommended-ssh-client-software">Recommended SSH client software</h3> <ul> <li>Windows: <ul> <li><a href="http://mobaxterm.mobatek.net/" target="_blank">MobaXterm</a>. From the MobaXterm website: “MobaXterm is an enhanced terminal for Windows with an X11 server, a tabbed SSH client and several other network tools for remote computing (VNC, RDP, telnet, rlogin). MobaXterm brings all the essential Unix commands to Windows desktop, in a single portable exe file which works out of the box.” The support of OpenGL could also be a reason to start using MobaXterm. If you use it professionally, you should consider subscribing to <a href="http://mobaxterm.mobatek.net/download.html" target="_blank">MobaXterm Professional Edition</a>. MobaXterm is available on the <a href="https://cncz.science.ru.nl/en/howto/s-schijf/">S-disc</a>.</li> <li><a href="https://mosh.org/" target="_blank">Mosh</a> (mobile Shell) when roaming and intermittent connections.</li> <li><a href="http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html" target="_blank">PuTTY</a>.</li> <li>The OpenSSH client provided by <a href="https://www.cygwin.com/" target="_blank">Cygwin</a>.</li> </ul> </li> <li>Linux: Your computer should have ssh installed by default. Otherwise, install the openssh-client package. Install <a href="https://mosh.org/" target="_blank">Mosh</a> (mobile Shell) when roaming or having intermittent connections.</li> <li>OS X: the ssh client should be available on your Mac. For graphical/X11 functionality one can install <a href="http://xquartz.macosforge.org" target="_blank">XQuartz</a>. Install <a href="https://mosh.org/" target="_blank">Mosh</a> (mobile Shell) when roaming or having intermittent connections.</li> <li>Android: <a href="https://juicessh.com/" target="_blank">JuiceSSH</a> or <a href="https://connectbot.org/" target="_blank">ConnectBot</a>. Install <a href="https://mosh.org/" target="_blank">Mosh</a> (mobile Shell) when roaming or having intermittent connections.</li> </ul> <h3 id="recommended-software-for-filetransfer">Recommended software for filetransfer</h3> <ul> <li>Windows: <a href="http://mobaxterm.mobatek.net/" target="_blank">MobaXterm</a> or <a href="https://winscp.net" target="_blank">WinSCP</a></li> <li>Linux: scp</li> <li>OS X and Windows: <a href="https://cyberduck.io/" target="_blank">Cyberduck</a></li> </ul> <h3 id="ssh-keys">SSH keys</h3> <p><code>ssh</code> can use login and password to authenticate with the server, but you can also use ssh keys as an alternative authentication method. ssh keys are public-private <em>key pairs</em> that you can generate using the <code>ssh-keygen</code> command on linux. Read the manpage <code>man ssh-keygen</code> to learn more. You can set a password on the private key, to prevent it from being copied and used by someone else to impersonate you.</p> https://cncz.science.ru.nl/en/howto/know-about-phishing/ Fri, 16 Dec 2022 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/howto/know-about-phishing/ <h1 id="phishing">Phishing</h1> <p>Trying to acquire useful data, ie login credentials, for abusing someone else&rsquo;s ICT infrastructure.</p> <h2 id="methods-of-phishing">Methods of phishing</h2> <p>In general, phishing works by send a clickable link surrounded by an important message about Salary, payment or a prize, a punishment or fee. This distracts your rational mind and ensures your emotional response controls your mouse-clicking finger.</p> <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice tip" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#tip-notice"></use></svg></span>Tip</p> https://cncz.science.ru.nl/en/news/2022-12-16_implementation-proofpoint-for-science-mail/ Fri, 16 Dec 2022 00:00:00 +0100 Bjorn Bellink https://cncz.science.ru.nl/en/news/2022-12-16_implementation-proofpoint-for-science-mail/ <p>Unfortunately, we have recently seen a strong increase in successful <a href="https://cncz.science.ru.nl/en/howto/know-about-phishing">phishing</a> attempts in the Science domain, a mailing about this issue was already sent last week.</p> <p>At the same time, we worked hard in collaboration with ILS to also deploy the centrally used anti-phishing tooling from Proofpoint for FNWI. The central RU mail environment has been supplemented with this highly effective anti-phishing measure for some time now.</p> <p>As soon as the Science mail domains are also placed &lsquo;behind&rsquo; this anti-phishing tool, things will change for users who have not yet had to deal with this. More information can be found on <a href="https://www.ru.nl/ict/algemeen/proofpoint/" target="_blank">https://www.ru.nl/ict/algemeen/proofpoint/</a>.</p> https://cncz.science.ru.nl/en/cpk/1309/ Fri, 16 Dec 2022 00:00:00 +0100 Bram Daams https://cncz.science.ru.nl/en/cpk/1309/ <p>After a disk was replaced of a vmhost, a reboot was needed to actually see the disk. Unfortunately, this did not help. A second try, with another disk worked and the machine is rebuilding the RAID.</p> https://cncz.science.ru.nl/en/news/2022-12-15_many-phishing-attempts-in-the-last-week/ Thu, 15 Dec 2022 00:00:00 +0100 Bram Daams https://cncz.science.ru.nl/en/news/2022-12-15_many-phishing-attempts-in-the-last-week/ <p>Last week we have seen a strong increase in <a href="https://cncz.science.ru.nl/en/howto/know-about-phishing/">phishing</a> attempts targeting the Science domain. It is notable that these attempts use well-constructed Science environments such as Roundcube that are difficult to distinguish from the real environment. The phishing email often contains something about salary or a payment, which means that it is clicked a lot. C&amp;CZ is doing everything it can to limit the nuisance as much as possible by blocking these phishing emails as much as possible.</p> https://cncz.science.ru.nl/en/cpk/1308/ Fri, 09 Dec 2022 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1308/ <p>Recently, some Science accounts were hacked, after users fell for a phishing mail. These accounts were subsequently abused by internet criminals to send mails from our <a href="https://cncz.science.ru.nl/en/howto/ardware-servers/#linux-loginservers">Linux loginservers</a>. Therefore, we have removed the ability to login on these login servers for all Science accounts that didn&rsquo;t use these servers anyway. Please <a href="https://cncz.science.ru.nl/en/howto/contact/">contact</a> C&amp;CZ if you want to be able to login to the Linux login servers.</p> https://cncz.science.ru.nl/en/cpk/1307/ Wed, 07 Dec 2022 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1307/ <p>To deal with the ongoing abuse of science accounts for spam, we have disabled the possibility to send e-mail from the <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/#linux-loginservers">linux login servers</a>. This means that the lilos cannot be used anymore to run mutt/alpine or as socksproxy for mail clients.</p> <p>For users with cronjobs, note that cronjobs cannot send output via e-mail anymore. Please change your cronjobs to provide feedback in a different way or discuss an alternative solution with <a href="https://cncz.science.ru.nl/en/howto/contact">postmaster</a>.</p> https://cncz.science.ru.nl/en/cpk/1306/ Tue, 06 Dec 2022 00:00:00 +0100 Bram Daams https://cncz.science.ru.nl/en/cpk/1306/ <p>After several persons fell for a phishing email, several tens of thousands of emails were sent via Science accounts. This causes our mail servers to be blocked by several mail servers on the internet. We are currently cleaning SPAM mails that are still in the outgoing queues. After that, the mail servers will be made available again. We are considering measures to prevent this form of nuisance.</p> https://cncz.science.ru.nl/en/news/2022-12-02_maple-new-version-maple2022-2-and-license-continued/ Fri, 02 Dec 2022 00:00:00 +0100 https://cncz.science.ru.nl/en/news/2022-12-02_maple-new-version-maple2022-2-and-license-continued/ <p>The C&amp;CZ administered “4 concurrent user” license for Maple has been continued until December 31, 2023. The latest version of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a>, Maple2022.2, for Windows/macOS/Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share and has been installed on C&amp;CZ managed Linux computers. License codes can be requested from C&amp;CZ helpdesk or postmaster.</p> https://cncz.science.ru.nl/en/cpk/1305/ Tue, 29 Nov 2022 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1305/ <p><a href="https://jitsivm.science.ru.nl" target="_blank">Jitsi</a> was unavailable after the reboot, because one of the web-interface configurations was still referring to an older certiticate.</p> https://cncz.science.ru.nl/en/cpk/1304/ Tue, 22 Nov 2022 00:00:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1304/ <p>The certificate for jitsi.science.ru.nl expired last week and was replaced, but a sub-service was still using a copy of the older certificate. Users were able to open the frontend, but not able to start a meeting. The problem was resolved by updating the copy of the sub-service.</p> https://cncz.science.ru.nl/en/news/2022-11-15_manage-science-accounts-in-dhz/ Tue, 15 Nov 2022 00:00:00 +0100 Bram Daams https://cncz.science.ru.nl/en/news/2022-11-15_manage-science-accounts-in-dhz/ <p>From now on it is possible to manage <a href="../../howto/login">Science accounts</a> under your control in <a href="https://diy.science.ru.nl" target="_blank">DIY</a>. The overview of Science accounts for which you are the contact can be found in the menu &ldquo;My accounts&rdquo;.</p> <p><img loading="lazy" src="https://cncz.science.ru.nl/img/2022/my-accounts.png" alt="my accounts screenshot" /> </p> <p>Each of these accounts has a link to a form where you can perform one of the following actions:</p> <ul> <li>Postpone the check date. This date is used to send reminder emails.</li> <li>Block the account. Blocked accounts cannot be used to login into systems (like mail, login server, gitlab).</li> <li>Delete the account. If you delete an account, the account will be blocked immediately and will be deleted a month later.</li> </ul> <p>If the check date of a Science account has passed, a <a href="../../howto/emailcodes/#diy-1">reminder email</a> will be sent inviting you to indicate in DIY what to do with the account. In most cases it is therefore no longer necessary to send a reply to this e-mail.</p> https://cncz.science.ru.nl/en/howto/originlab/ Tue, 08 Nov 2022 16:37:04 +0000 https://cncz.science.ru.nl/en/howto/originlab/ <h3 id="originlab">OriginLab</h3> <p>Origin by <a href="http://www.originlab.com/" target="_blank">Originlab</a> is scientific graphing and data analysis software.</p> <h3 id="license">License</h3> <p>C&amp;CZ acquired a network license for FNWI for the use of OriginPro. One can get the software and installation/licensing keys of OriginPro from <a href="https://cncz.science.ru.nl/en/howto/systeemontwikkeling/">C&amp;CZ system administration</a>.</p> <p>The network license can only be used by computers on the Internet. For standalone use, there are home-use licenses included. The current support contract ends August 2026.</p> <p>If you get a message that the license will expire soon and you are using a standalone version you can update the license by clicking on Activate in the Help menu.</p> https://cncz.science.ru.nl/en/howto/systeemontwikkeling/ Tue, 08 Nov 2022 09:49:45 +0100 https://cncz.science.ru.nl/en/howto/systeemontwikkeling/ <h2 id="system-development-and-administration">System Development and Administration</h2> <p>System development and administration is located in room HG00.545.</p> <h2 id="who-are-they">Who are they?</h2> <ul> <li> <a href="https://www.ru.nl/personen/aalbers-p">Remco Aalbers</a> <br> <a href="https://www.ru.nl/personen/daams-b">Bram Daams</a> <br> <a href="https://www.ru.nl/personen/gieben-r">Miek Gieben</a> <br> <a href="https://www.radboudnet.nl/personen/greefhorst-a">Alexander Greefhorst</a> <br> <a href="https://www.ru.nl/personen/janssen-w">Wim Janssen</a> <br> <a href="https://www.ru.nl/personen/lieffers-h">Eric Lieffers</a> <br> <a href="https://www.ru.nl/personen/oosthoek-s">Simon Oosthoek</a> <br> <a href="https://www.ru.nl/personen/polman-b">Ben Polman</a> <br> <a href="https://www.radboudnet.nl/personen/thorig-a">Arnoud Thörig</a> <br> <a href="https://www.ru.nl/personen/visser-e-j-erik">Erik Visser</a> </li> </ul> <h2 id="what-do-they-do">What do they do?</h2> <p>System Administration takes care of</p> <ul> <li>Management of the <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">servers of the faculty and of various departments</a>.</li> <li>Back-up and restore of the data on the servers.</li> <li>Management of workstations in the departments and in the <a href="https://cncz.science.ru.nl/en/howto/terminalkamers/">computer labs and publicly available workstations</a>: Managed PC’s with MS-Windows and/or Ubuntu Linux.</li> </ul> <p>For all other computers (hundreds of MS-Windows PCs and tens of Linux PCs and MACs, not managed by C&amp;CZ) it is understood that the owner (department) takes care of the systems management. For these systems, C&amp;CZ system administration can try to answer questions.</p> https://cncz.science.ru.nl/en/cpk/1303/ Fri, 28 Oct 2022 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1303/ <p>Since midnight there is a problem using Adobe Acrobat Pro DC, you are asked to activate the license. ILS is working on a solution. You can open PDFs using Adobe Reader or some other PDF reader. See: <a href="https://meldingen.ru.nl/detail.php?id=1333&amp;lang=en&amp;tg=0&amp;f=0&amp;ii" target="_blank">https://meldingen.ru.nl/detail.php?id=1333&lang=en&tg=0&f=0&ii</a> for the original notice.</p> https://cncz.science.ru.nl/en/howto/mobaxterm/ Thu, 27 Oct 2022 15:25:24 +0000 https://cncz.science.ru.nl/en/howto/mobaxterm/ <h2 id="using-x-applications-from-your-windows-pc">Using X applications from your Windows PC</h2> <p><a href="http://mobaxterm.mobatek.net/" target="_blank">MobaXterm</a> is software which is available on the <a href="https://cncz.science.ru.nl/en/howto/s-schijf/">S-disc</a>. From the MobaXterm website: “MobaXterm is an enhanced terminal for Windows with an X11 server, a tabbed SSH client and several other network tools for remote computing (VNC, RDP, telnet, rlogin). MobaXterm brings all the essential Unix commands to Windows desktop, in a single portable exe file which works out of the box.” The support of OpenGL could also be a reason to start using MobaXterm. If you use it professionally, you should consider subscribing to [<a href="http://mobaxterm.mobatek.net/download.html" target="_blank">MobaXterm Professional Edition</a>.</p> https://cncz.science.ru.nl/en/cpk/1302/ Mon, 24 Oct 2022 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/cpk/1302/ <p>Just before 23:09 quite a lot of ceph storage nodes became unreachable. This seems to be due to one of the redundant links between two datacenter locations failing for about 4 seconds. This triggered a whole slew of ceph osd processes being killed off and not starting again. A generic configuration change made for all our servers generated an extra interface, which confused some of the osd processes (depending on interface ordering) when starting up. We are reasonably confident we can avoid this from happening in the future.</p> https://cncz.science.ru.nl/en/howto/data-sharing/ Sat, 22 Oct 2022 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/howto/data-sharing/ <p>Often people want to share data, choosing the right method can be complex.</p> <p>This page hopes to help you choose the right solution.</p> <p>Options:</p> <ul> <li>https (previously ftp)</li> <li>e-mail</li> <li><a href="https://www.surf.nl/en/services/storage-data-management/surfdrive" target="_blank">surfdrive</a></li> <li><a href="https://filesender.surf.nl/" target="_blank">surf filesender</a></li> <li>physical transfer</li> <li>custom solution</li> <li>Microsoft Teams</li> </ul> <p>Situations:</p> <ul> <li>one to few people</li> <li>one to many people</li> <li>share with public</li> <li>co-authoring</li> <li>moving datasets between institutions</li> </ul> <hr> <h2 id="gdpr-dutch-avg">GDPR (Dutch: AVG)</h2> <p>Whenever you are sharing documents or files, be aware that restrictions apply when sharing personal information and all involved parties must explicitly accept responsibility for keeping within the legal boundaries.</p> https://cncz.science.ru.nl/en/news/2022-10-21_donation-to-free-and-open-source-software-project-jupyter-and-mozilla/ Fri, 21 Oct 2022 00:00:00 +0200 https://cncz.science.ru.nl/en/news/2022-10-21_donation-to-free-and-open-source-software-project-jupyter-and-mozilla/ <p>For the majority of the services C&amp;CZ uses <a href="https://en.wikipedia.org/wiki/Free_software" target="_blank">free software</a> and <a href="https://en.wikipedia.org/wiki/Open-source_software" target="_blank">open source software</a>. Therefore, some time ago C&amp;CZ decided that each year the employees vote which projects receive a donation from C&amp;CZ. This year <a href="https://jupyter.org/about" target="_blank">Project Jupyter</a> was chosen as new recipient. Project Jupyter is a non-profit, open-source project, born out of the IPython Project in 2014 as it evolved to support interactive data science and scientific computing across all programming languages. C&amp;CZ makes use of it in the <a href="https://cncz.science.ru.nl/nl/howto/jupyterhub/" target="_blank">JupyterHub</a> for FNWI courses. As a second recipient <a href="https://foundation.mozilla.org/" target="_blank">Mozilla Foundation</a> was chosen, just like in 2021. Many people will know <a href="https://en.wikipedia.org/wiki/Firefox" target="_blank">the Mozilla Firefox</a> webbrowser and the mailclient <a href="https://en.wikipedia.org/wiki/Mozilla_Thunderbird" target="_blank">Mozilla Thunderbird</a> and maybe use it hours a day. But <a href="https://foundation.mozilla.org/en/what-we-do/" target="_blank">the Mozilla Foundation does a lot more</a> to try to ensure the internet remains a public resource that is open and accessible to us all.</p> https://cncz.science.ru.nl/en/cpk/1301/ Thu, 20 Oct 2022 23:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1301/ <p>ILS wifi management notified us that they will upgrade the software of wireless access points, because security flaws have been addressed in the latest release.</p> <p>The maintenance ends on 2022-10-21 01:30.</p> <p>Source: <a href="https://meldingen.ru.nl/detail.php?id=1330&amp;lang=en&amp;tg=0&amp;f=0&amp;ii" target="_blank">meldingen.ru.nl</a></p> https://cncz.science.ru.nl/en/howto/electronic-lab-journals/ Thu, 20 Oct 2022 00:00:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/howto/electronic-lab-journals/ <h1 id="availability-of-elab-software">Availability of Elab software</h1> <h2 id="elabftw">ElabFTW</h2> <p><a href="https://elabftw.science.ru.nl/" target="_blank">ElabFTW</a></p> <h2 id="chemotion">Chemotion</h2> <p>TODO</p> <h2 id="heading"></h2> https://cncz.science.ru.nl/en/howto/mailman-lists/ Sat, 15 Oct 2022 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/howto/mailman-lists/ <h2 id="mailing-lists">Mailing lists</h2> <p>Mailman lists are highly configurable and moderatable <a href="http://mailman.science.ru.nl/" target="_blank">mailman mailing lists</a>, e.g. the list of <a href="http://mailman.science.ru.nl/mailman/listinfo/fnwi-medewerkers" target="_blank">FNWI-employees</a> or the list of <a href="http://mailman.science.ru.nl/mailman/listinfo/fnwi-studenten" target="_blank">FNWI-students</a>. Usually one can add oneself to or remove oneself from such a mailman mailing list. Every mailman mailing list has a moderator, who can approve or reject messages to the mailman mailing list. For mailman list admins: To filter spam one can choose in the <code>Privacy options...</code> under <code>Spam filters</code> as <code>Spam filter regexp:</code></p> https://cncz.science.ru.nl/en/howto/email/ Fri, 14 Oct 2022 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/howto/email/ <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice tip" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#tip-notice"></use></svg></span>Tip</p> https://cncz.science.ru.nl/en/news/2022-10-14_new-cncz-website/ Fri, 14 Oct 2022 00:00:00 +0200 Bram Daams https://cncz.science.ru.nl/en/news/2022-10-14_new-cncz-website/ <p>We have given the C&amp;CZ website a completely new look. The update makes the website usable on smartphones. We will also make it possible to inform staff and students through this website even when all RU services are down. The content of the old site has been transferred. The old website is still available at <a href="https://old.cncz.science.ru.nl" target="_blank">https://old.cncz.science.ru.nl</a> for the time being. For questions or comments, please contact <a href="https://cncz.science.ru.nl/en/howto/contact">Postmaster</a>.</p> https://cncz.science.ru.nl/en/howto/limesurvey/ Sat, 08 Oct 2022 12:38:24 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/limesurvey/ <h1 id="introduction-to-limesurvey">Introduction to LimeSurvey</h1> <p>Online surveys can be used for any type of data collection, not just for marketing purposes. Possible uses of surveys are sign-up forms for conferences, questionnaires for research projects, order forms, etc. For students and employees of the beta-faculty, C&amp;CZ offers a survey service based on <a href="https://community.limesurvey.org/" target="_blank">LimeSurvey</a>.</p> <p>LimeSurvey is an open source web application. It currently offers:</p> <ul> <li>Sending of invitations, reminders and tokens by email</li> <li>Multilingual surveys</li> <li>Conditions for questions depending on earlier answers (Skip Logic / Branching)</li> <li>Integration of pictures and movies into a survey</li> </ul> <h2 id="logging-in">Logging in</h2> <p>The admin login page is located at:</p> https://cncz.science.ru.nl/en/news/2022-10-07_matlab-r2022b-available/ Fri, 07 Oct 2022 23:09:00 +0200 https://cncz.science.ru.nl/en/news/2022-10-07_matlab-r2022b-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2022b, is available for departments that have licenses. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-disc. All C&amp;CZ-managed Linux machines have this version installed, an older version (/opt/matlab-R2022a/bin/matlab) is still available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/cpk/1300/ Thu, 29 Sep 2022 19:27:00 +0200 https://cncz.science.ru.nl/en/cpk/1300/ <p>Some time ago, some Science users fell for a phishing mail, therefore their account could be misused by spammers to send mail through our mailservers. Therefore our mailservers ended up in blacklists yesterday evening. Some mails could therefore not be delivered to other servers, that mail was returned to the sender. This morning we removed the IP addresses of our servers from several blacklists, we think that the problems are resolved now.</p> https://cncz.science.ru.nl/en/cpk/1298/ Tue, 27 Sep 2022 23:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1298/ <p>ILS network management announced: Tuesday September 27 23:30 maintenance is carried out on the Eduroam wireless network in FNWI buildings a.o. In most cases connectivity will be interrupted for at least 30 and at most 60 minutes.</p> https://cncz.science.ru.nl/en/cpk/1299/ Fri, 23 Sep 2022 18:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1299/ <p>ILS network management announced: Friday September 23 18.30 – 22.30 network maintenance is carried out on the DMZ and SRV firewalls. Connectivity interruptions of 20 to 40 seconds are expected. In case of problems, interruptions of 5 to 10 minutes might occur.</p> https://cncz.science.ru.nl/en/news/2022-09-23_avdavs-audiovisual-services-for-fnwi-to-central-ru-location/ Fri, 23 Sep 2022 13:13:00 +0200 Bjorn Bellink https://cncz.science.ru.nl/en/news/2022-09-23_avdavs-audiovisual-services-for-fnwi-to-central-ru-location/ <p>From Monday, October 3, Sacha Djuric and Jelle de Koter of AVD/AVS Audiovisual Services will operate from the RU central location Thomas van Aquinostraat 1.00.22 for all faculties and service departments. The new phone number will be [+31 24 36 12680](tel:+31 24 36 12680). The most frequent picked-up items can then be picked up at the <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ helpdesk</a>: adapter cables, beamers for study associations, cables, batteries, remote controls and a a mobile USB camera on a tripod with microphone (e.g. for hybrid education). In case of questions contact <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/news/2022-09-23_new-version-of-diysciencerunl/ Fri, 23 Sep 2022 13:05:00 +0200 Remco Aalbers https://cncz.science.ru.nl/en/news/2022-09-23_new-version-of-diysciencerunl/ <p>Today the new version of the C&amp;CZ self service site <a href="https://diy.science.ru.nl" target="_blank">DIY</a> went live. This version also has a completely rewritten back-end, which allows new functionality to be added in the near future. The main new functionality that is available now, is the possibility of logging in with the Radboud ID (employee number or student number) in order to set a forgotten Science password. In case of questions contact <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/howto/emailcodes/ Fri, 23 Sep 2022 07:16:08 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/emailcodes/ <h2 id="email-codes-overview">Email codes overview</h2> <h3 id="alice-1">ALICE-1</h3> <p>This is an email in which students are requested to participate in the digital course evaluation.</p> <ul> <li>Recipients? All students that are registered in OSIRIS for the exam of the corresponding course.</li> <li>When? Typically on the day of the exam (around 17:00).</li> </ul> <h3 id="alice-2">ALICE-2</h3> <p>This is an email reminder in which students are requested once again to participate in the digital course evaluation.</p> <ul> <li>Recipients? All students that are registered in OSIRIS for the exam of the corresponding course.</li> <li>When? Five days after the ALICE-1 email, so typically five days after the exam.</li> </ul> <h3 id="alice-3">ALICE-3</h3> <p>This is an email in which the feedback of the course are sent to the students.</p> https://cncz.science.ru.nl/en/cpk/1297/ Thu, 22 Sep 2022 12:20:00 +0200 https://cncz.science.ru.nl/en/cpk/1297/ <p>A few campus-wide dips in the power supply made network and telephony unusable for about 15 minutes, except in server rooms where UPSs guarantee the power supply. Because 7 modules of desktop switches in Huygens/HFML/Felix had become defective, several hundred network outlets will only have worked again after the relevant switch module had been replaced.</p> https://cncz.science.ru.nl/en/howto/netwerk-draadloos/ Mon, 19 Sep 2022 16:30:58 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/netwerk-draadloos/ <h1 id="wireless-network">Wireless network</h1> <p>The <a href="https://www.ru.nl/ict-uk/general/wifi/" target="_blank">wireless network</a> that we advise to use, is <a href="http://www.eduroam.org/" target="_blank">eduroam</a>. Authentication is done in one of the following ways:</p> <ul> <li>Firstname.Lastname@ru.nl and RU password</li> <li>Science-loginname@science.ru.nl and Science password</li> </ul> <p>Employees of Science-departments can request <a href="https://eva.eduroam.nl/inloggen" target="_blank">Eduroam Visitor Access accounts</a>, that give visitors access to a separate part of the wireless network. through <a href="https://cncz.science.ru.nl/en/howto/werkplekondersteuning/">C&amp;CZ-Operations</a>, tel. 20000. Every employee of Radboud University can provide a guest with access for the rest of the day, by providing the guest a day code (keyword). That code can be found on the <a href="https://portal.ru.nl" target="_blank">the RU portal</a>. For more information, see the <a href="http://www.ru.nl/ict-uk/staff/wifi/wifi-visitors/" target="_blank">ILS website</a>. Guests can also get access through the Library of Science.</p> https://cncz.science.ru.nl/en/howto/matlab/ Mon, 19 Sep 2022 16:29:14 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/matlab/ <h3 id="matlab">Matlab</h3> <p>Matlab, a &ldquo;matrix laboratory&rdquo; for interactive scientific calculations of <a href="http://www.mathworks.com/" target="_blank">The Mathworks Inc.</a> is an integrated software package, it combines numeric calculations, data visualization and a programming language.</p> <h3 id="license">License</h3> <p>A number of departments in the university have bought shares in the network license that C&amp;CZ has arranged for the use of Matlab. When one has bought a share, one can get the software and installation/licensing keys of Matlab for either Linux, Mac or MS-Windows, also for older versions of Matlab, from <a href="https://cncz.science.ru.nl/en/howto/systeemontwikkeling/">C&amp;CZ system administration</a>.</p> https://cncz.science.ru.nl/en/howto/installeren-werkplek/ Mon, 19 Sep 2022 16:27:01 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/installeren-werkplek/ <h2 id="installing-a-pc">Installing a PC</h2> <p>When installing a new PC you have several options.</p> <ul> <li>If the PC is not connected to the network, C&amp;CZ can offer little or no help to install your PC. You can <a href="https://cncz.science.ru.nl/en/tags/software">borrow</a> DVD/CD’s with a Windows Operating system and application software like MS-Office, etc from C&amp;CZ .</li> <li>If the PC is connected to the network via a (PXE enabled) network interface, a fully automated installation of Windows with standard applications is possible. In this case your PC becomes a <a href="https://cncz.science.ru.nl/en/howto/windows-beheerde-werkplek/">beheerde werkplek PC</a>.<br> Also it is possible to install, fully automated, Ubuntu Linux with standard applications on the PC.<br> In both cases contact C&amp;CZ to register your PC.</li> </ul> https://cncz.science.ru.nl/en/howto/netwerk-ntp/ Mon, 19 Sep 2022 16:26:21 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/netwerk-ntp/ <p>The system clocks on C&amp;CZ managed Linux machines are being kept up to date by using the Network Time Protocol (ntp). Each machine checks at regular intervals its system clock with several designated machines on the network and adjusts their system clock when needed. Whenever the difference between the local system clock compared to the system clock of other servers gets bigger than half a second the clock will be adjusted. If the difference is smaller, the system clock will be adjusted in small steps by slowing down or accelerating a little, to avoid multiple large time adjustments. Because all systems adjust their system clock to the same ntp servers, all system clocks will eventually become synchronized. The local servers are ntp1.science.ru.nl and ntp2.science.ru.nl.</p> https://cncz.science.ru.nl/en/howto/afvoer/ Mon, 19 Sep 2022 16:23:09 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/afvoer/ <h2 id="disposal">Disposal</h2> <ul> <li> <p>Safe disposal of IT equipment and data carriers</p> </li> <li> <p>The FNWI Housing &amp; Logistics (HL) department manages a contract with an external specialized company for the secure destruction/shredding of data carriers on location. The secure metal container that is used as a temporary cache, can be found at C&amp;CZ as of September 2022. Employees and students of the Faculty of Science can put data carriers with sensitive data in the container themselves at C&amp;CZ. The C&amp;CZ helpdesk can help recognizing and removing data carriers from desktops, laptops etc.</p> https://cncz.science.ru.nl/en/howto/terminalkamers/ Mon, 19 Sep 2022 16:12:50 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/terminalkamers/ <p>C&amp;CZ manages a large number of machines that anybody with an <a href="https://cncz.science.ru.nl/en/howto/login/">Science-account</a> can use. Students can also login to the PC’s in the computer labs, the study area and the library with their S-number and RU-password, in the RU-domain on MS-Windows. All computer labs are dual boot: during startup of the PC one can choose to boot Linux (Ubuntu) or Windows.</p> <h3 id="available-computer-labs">Available computer labs</h3> <p>The Science Faculty provides the following computer labs:</p> https://cncz.science.ru.nl/en/howto/thunderbird/ Mon, 19 Sep 2022 16:07:13 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/thunderbird/ <p>Mozilla Thunderbird is free and open-source email client software. Below are instructions to configure Thunderbird for RU MS365 mail and for Science mail.</p> <h2 id="configure-thunderbird-for-ru-ms365-mail">Configure Thunderbird for RU MS365 mail.</h2> <p>The <a href="https://www.ru.nl/en/services/campus-facilities/work-and-study-support-services/ict/email-and-calendar" target="_blank">RU MS365 instructions</a> do not mention Thunderbird, but there is a <a href="https://cncz.science.ru.nl/downloads/2023/Mozilla-Thunderbird-settings-for-RU.pdf">RU created set of instructions (pictures in Dutch)</a>.</p> <h2 id="configure-thunderbird-for-science-mail">Configure Thunderbird for Science mail.</h2> <p>NB: For a <em>self managed pc</em> after installing Thunderbird you&rsquo;ll have to uncheck <strong>Launch Mozilla Thunderbird now</strong> and click <strong>Finish</strong>. <figure> <img loading="lazy" src="https://cncz.science.ru.nl/img/old/tb-no-bw-install.jpg"/> <figcaption> Last installation dialog screen </figcaption> </figure> </p> https://cncz.science.ru.nl/en/howto/thunderbird-tags/ Mon, 19 Sep 2022 16:05:54 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/thunderbird-tags/ <h2 id="thunderbird-tags">Thunderbird tags</h2> <p>In Thunderbird you can tag a message with one or more <em>tags</em> by clicking on the message with the right mouse button and choosing <strong>Tag</strong>. There are five standard tags with descriptions <strong>Important</strong>, <strong>Work</strong>, etc. If the mail server is an imap server like <strong>post.science.ru.nl</strong>, then the tags are stored on the server, which means that every Thunderbird will show the tags.</p> <p>It is somewhat more complicated for <em>new tags</em> that you can create. Thse are also stored on the imap server, but will initialy not be visible in other Thunderbird programs. One can make a new tag by clicking with the right mouse button on a message and choosing <strong>Tag -&gt; New Tag…</strong> or using the menu <strong>Tools -&gt; Options… -&gt; Display -&gt; Tags -&gt; Add</strong>. The tag name will be used both as internal tag name and as visible description. If you alter the tag name later on, then the internal tag name will remain the same. The internal tag name (i.e. the <em>initial</em> tag name) will be used as tag on the imap server. A new tag will only be visible in another Thunderbird if a tag with the same internal tag name exists. So it is important the choose the right initial tag name. In particular one has to agree on a tag name if the mailbox is shared. After that everyone can change the colour and tag name, without consequences for the visibility of the tags.</p> https://cncz.science.ru.nl/en/howto/faq-unix/ Mon, 19 Sep 2022 14:08:15 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/faq-unix/ <h1 id="cczs-not-frequently-enough-asked-questions">C&amp;CZ’s Not Frequently Enough asked questions</h1> <h2 id="with-answers">with answers!</h2> <p>Last modified: 2018-03-21</p> <p>For questions, <a href="../contact">contact us</a>.</p> <hr> <h2 id="about-this-faq">About this FAQ</h2> <h3 id="contributors">Contributors</h3> <ul> <li>Patrick Atoon patricka@cs.kun.nl</li> <li>Kees Keijzers keesk@science.ru.nl</li> <li>Jos Alsters josal@science.ru.nl</li> <li>Peter van Campen Peter.vanCampen@science.ru.nl</li> <li>Simon Oosthoek S.Oosthoek@science.ru.nl</li> </ul> <h2 id="linux-shells">Linux shells</h2> <h3 id="what-is-a-shell">What is a shell?</h3> <p>The shell is a program that interprets the user’s commands and executes them on the Operating System. There are many kinds of shells, which have different interpreted languages in which to write commands.</p> https://cncz.science.ru.nl/en/howto/foxit-pdf-reader/ Mon, 12 Sep 2022 06:31:56 +0000 https://cncz.science.ru.nl/en/howto/foxit-pdf-reader/ <p>The program <a href="http://www.foxitsoftware.com/pdf/rd_intro.php" target="_blank">FoxIt PDF Reader</a> can be used as an alternative to Adobe Reader, it is a free program to view or print PDF files.</p> <p>One reason to sometimes not use Adobe Reader is that Adobe Reader 8 produces PostScript that HP4250/HP4350 printers can’t handle, not even after a firmware upgrade. Therefore C&amp;CZ switched to using the (slower) PCL-driver for almost all HP4250/HP4350 printers.</p> https://cncz.science.ru.nl/en/cpk/1296/ Sun, 04 Sep 2022 16:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1296/ <p>Still unclear what the cause is, several links are strongly degraded. Update: A defective switch has been replaced.</p> https://cncz.science.ru.nl/en/news/2022-09-01_new-version-of-originlabpro-2022b-sr1/ Thu, 01 Sep 2022 14:16:00 +0200 https://cncz.science.ru.nl/en/news/2022-09-01_new-version-of-originlabpro-2022b-sr1/ <p>A new version (2022b SR1) of <a href="https://cncz.science.ru.nl/en/howto/originlab/">OriginLabPro</a>, software for scientific graphing and data analysis, can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk. See <a href="https://www.originlab.com/2022b" target="_blank">the website of OriginLab</a> for all info on the new version. The license server supports this new version. Departments within FNWI can request installation and license info from C&amp;CZ, also for standalone use. Installation on C&amp;CZ managed PCs is being planned. In case of questions contact <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/news/2022-09-01_ccz-day-out-thursday-afternoon-september-22/ Thu, 01 Sep 2022 13:30:00 +0200 https://cncz.science.ru.nl/en/news/2022-09-01_ccz-day-out-thursday-afternoon-september-22/ <p>The C&amp;CZ yearly day out is scheduled for Thursday afternoon September 20. C&amp;CZ can be reached in case of serious disruptions of services.</p> https://cncz.science.ru.nl/en/howto/jupyterhub/ Wed, 31 Aug 2022 06:38:28 +0000 Malte Rösner https://cncz.science.ru.nl/en/howto/jupyterhub/ <p><a href="https://jupyterhub.readthedocs.io" target="_blank">JupyterHub</a> is a multi-user Hub that spawns, manages, and proxies multiple instances of the single-user Jupyter notebook server. It can offer notebook servers to a class of students, a scientific research project, or a high-performance computing group.</p> <p>Please <a href="https://cncz.science.ru.nl/en/howto/contact/">contact C&amp;CZ</a> if you plan to use or are interested in using the <strong>JupyterHub</strong> for your course or project.</p> <h2 id="login">Login</h2> <p>The <strong>JupyterHub</strong> is available via <a href="https://jupyterhub22.science.ru.nl" target="_blank">https://jupyterhub22.science.ru.nl</a> and you can login with your <strong>Science</strong> username / password combination.</p> https://cncz.science.ru.nl/en/howto/nbgrader/ Tue, 30 Aug 2022 07:17:33 +0000 Malte Rösner https://cncz.science.ru.nl/en/howto/nbgrader/ <p>NBGrader is a system for assigning and grading Jupyter notebooks.</p> <h2 id="student-interface">Student Interface</h2> <p>Using the assignment list extension within the JupyterHub, students may conveniently view, fetch, submit, and validate their assignments.</p> <p>For details see: <a href="https://nbgrader.readthedocs.io/en/stable/user_guide/highlights.html#student-interface" target="_blank">https://nbgrader.readthedocs.io/en/stable/user_guide/highlights.html#student-interface</a></p> <h2 id="instructor-interface">Instructor Interface</h2> <p>The NBGrader services guide the instructor and teaching assistants through assignment and grading tasks using the familiar JupyterHub environment.</p> <p>For details see: <a href="https://nbgrader.readthedocs.io/en/stable/user_guide/highlights.html#instructor-interface" target="_blank">https://nbgrader.readthedocs.io/en/stable/user_guide/highlights.html#instructor-interface</a></p> https://cncz.science.ru.nl/en/news/2022-08-18_shreddingdestruction-of-data-carriers-hard-drives-at-ccz/ Thu, 18 Aug 2022 11:29:00 +0200 https://cncz.science.ru.nl/en/news/2022-08-18_shreddingdestruction-of-data-carriers-hard-drives-at-ccz/ <p>The Internal Affairs department manages a contract with an external specialized company for the secure destruction/shredding of data carriers. The secure metal container that is used as a temporary cache, can be found at C&amp;CZ as of the new academic year. Employees and students of the Faculty of Science can put data carriers with sensitive data in the container themselves at C&amp;CZ. The C&amp;CZ helpdesk can help recognizing and removing data carriers from desktops, laptops etc.</p> https://cncz.science.ru.nl/en/news/2022-07-15_ccz-moves-back-to-hg03055/ Fri, 15 Jul 2022 10:43:00 +0200 https://cncz.science.ru.nl/en/news/2022-07-15_ccz-moves-back-to-hg03055/ <p>Because there was too much noise in the new rooms, C&amp;CZ will temporarily move back to the third floor of the Huygens building. We expect that the final move to the ground floor will be in December 2022.</p> https://cncz.science.ru.nl/en/news/2022-07-12_new-version-of-mathematica-1310/ Tue, 12 Jul 2022 16:21:00 +0200 https://cncz.science.ru.nl/en/news/2022-07-12_new-version-of-mathematica-1310/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (13.1.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>. The installation files for Windows, Linux and macOS can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk, also for older versions of Mathematica. Installation and license info can be <a href="https://cncz.science.ru.nl/en/howto/contact/">requested from C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/howto/netwerk-ethergids/ Tue, 05 Jul 2022 11:29:47 +0000 https://cncz.science.ru.nl/en/howto/netwerk-ethergids/ <h2 id="ccz-ethernet-guide">C&amp;CZ Ethernet guide</h2> <p>All network info is, mainly automatically, saved in a database. Some info can be looked up below by searching on MAC address, IP address, room number, outlet number or hostname.</p> <p><a href="https://rbsgids.science.ru.nl/cgi-scripts/ethergids.php" target="_blank">FNWI Ethergids</a></p> <p>Did you find an inaccuracy? Please <a href="../contact">contact us</a>[contact us].</p> https://cncz.science.ru.nl/en/howto/reparaties/ Tue, 28 Jun 2022 14:59:09 +0000 https://cncz.science.ru.nl/en/howto/reparaties/ <p>The repair procedure depends on the firm that sold the machine. Whether the repair is free of charge or not, depends on the precise terms of warranty (and whether the repair is within the period of warranty or not).</p> <ol> <li>Normally, PC’s sold by <a href="https://cncz.science.ru.nl/en/howto/huisleverancier-pcs/">standard PC supplier Dustin</a> have a warranty period of 3 years. But: be aware that this does not hold for all machines. Read the <a href="http://www.dustin.nl/" target="_blank">website of Dustin (formerly CentralPoint)</a> carefully when ordering.</li> <li>For other suppliers and products, a different warranty period may be applicable.</li> </ol> <ul> <li> <p>Repairs can be ordered through C&amp;CZ: <strong>within as well as outside of the period of warranty</strong>. We can also advise when a defect is suspected.</p> https://cncz.science.ru.nl/en/howto/huisleverancier-pcs/ Tue, 28 Jun 2022 14:57:16 +0000 https://cncz.science.ru.nl/en/howto/huisleverancier-pcs/ <h3 id="standard-supplier-dustin-formerly-centralpointscholten-awater">Standard supplier: Dustin (formerly CentralPoint/Scholten Awater)</h3> <p>The standard supplier of pc’s for Radboud University is <a href="http://www.dustin.nl/" target="_blank">Dustin (formerly CentralPoint/Scholten Awater</a> since March, 2006, after several European tenders.</p> <h3 id="limited-selection">Limited selection</h3> <p>The <a href="http://www.ru.nl/isc" target="_blank">ISC</a> picks a limited selection of tested products with often a favourable price. These can be seen via BASS at CentralPoint in “Mijn assortiment” as RU-laptop, RU-desktop etc.</p> <h3 id="website">Website</h3> <p>From within <a href="https://www.bass.ru.nl" target="_blank">the purchasing system BASS</a> you can reach the <a href="http://www.centralpoint.nl/" target="_blank">website of CentralPoint</a> with RU pricing.</p> https://cncz.science.ru.nl/en/howto/website/ Fri, 24 Jun 2022 12:55:42 +0000 https://cncz.science.ru.nl/en/howto/website/ <p>There are three major types of web sites in use at the Faculty of Science:</p> <ul> <li>LAMP (Linux, Apache, MySQL, PHP/Perl/Python) and MediaWiki based general purpose web servers (possibly offering some high level content management system). These sites are hosted, managed and supported by C&amp;CZ. All content management tasks are performed by the respective web site owners: institutes and scientific departments, student organisations, service departments, etc. Please contact C&amp;CZ for more information about <a href="https://cncz.science.ru.nl/en/howto/www-service/">WWW_Services</a>.</li> <li>Externally hosted web sites (including sites hosted by ILS) for which custom management and support agreements may be in place.</li> <li>Web sites based on the Radboud University’s Content Management System (<a href="https://cncz.science.ru.nl/en/howto/cms/">CMS</a>) (also known as IPROX, which is the name of the management software suite).</li> </ul> https://cncz.science.ru.nl/en/howto/phone-mail-guide/ Fri, 24 Jun 2022 12:54:04 +0000 https://cncz.science.ru.nl/en/howto/phone-mail-guide/ <h1 id="telephone-and-email-guide">Telephone and email guide</h1> <iframe src="https://rbsgids.science.ru.nl/cgi-scripts/telgids.php" width='100%' height='300px'></iframe> <p>You can search this guide for (part of the) name, phone number, room, department etc. If you are calling from outside The Netherlands first dial <code>+31 24 36</code> and then the internal phone number.</p> <h2 id="rbs">RBS</h2> <p>Departments within the Faculty of Science can enter or adjust their guide entries themselves via <a href="http://www.radboudnet.nl/rbs/" target="_blank">RBS</a>. All <em>telephone contact persons</em> have a login to edit directory data directly in RBS.</p> <p>The telephone contact person also receives the telephone cost specifications, can request or cancel changes and subscriptions and, if there is reason to do so, receives information from ILS about the telephony facilities within the RU (eg rate changes, malfunctions, maintenance).</p> https://cncz.science.ru.nl/en/howto/ru-software-licenties/ Fri, 24 Jun 2022 12:45:46 +0000 https://cncz.science.ru.nl/en/howto/ru-software-licenties/ <h2 id="science-software-licences-negotiated-by-ccz">Science software licences negotiated by C&amp;CZ</h2> <p>All info can be found on the <a href="https://cncz.pages.science.ru.nl/licenses/" target="_blank">Science licenses pages</a>. Questions: please <a href="../contact">contact C&amp;CZ</a>.</p> <p>Most software can be found on the install share. On a PC with MS-Windows (or a Linux “Samba client”), one can connect to the service:</p> <pre tabindex="0"><code>\install.z.science.ru.nl\install </code></pre><h2 id="ru-software-licences-negotiated-by-ils">RU software licences negotiated by ILS</h2> <p>ILS negotiated license agreements for the RU for <a href="https://www.ru.nl/en/services/campus-facilities-buildings/ict/software" target="_blank">a number of software packages</a>. This makes that software relatively cheap (bulk license) or even free (campus license) for use by students and employees.</p> https://cncz.science.ru.nl/en/howto/crest/ Fri, 24 Jun 2022 12:18:55 +0000 https://cncz.science.ru.nl/en/howto/crest/ <h2 id="prerequisities">Prerequisities</h2> <ul> <li>Same as for <a href="https://cncz.science.ru.nl/en/howto/gaussian/">gaussian</a></li> <li>set-up environment (check <a href="https://cncz.science.ru.nl/en/howto/gaussian/">gaussian</a>)</li> </ul> <h2 id="general-topics">General topics</h2> <p>General topics like queue handling, queues and similar are covered in the <a href="https://cncz.science.ru.nl/en/howto/gaussian/">gaussian</a> wiki entry.</p> <h2 id="submitting-jobs">Submitting jobs</h2> <p>Basic syntax of crest submission script is following:</p> <p><code>cnorris@lilo7:~$ Crest structure.xyz</code></p> <p>where <em>structure.xyz</em> is the structure which you want to submit.</p> <p>More advanced syntax looks like this:</p> <p><code>cnorris@lilo7:~$ Crest structure.xyz -chrg 1 -uhf 0 -quick</code></p> <p>Here I’ve added quick keyword which makes the screening less in-depth but it goes much quicker. I also added chrg keyword to define charge and uhf keyword to define spin state. For more detailed description and full list of keywords, please refer to <a href="https://xtb-docs.readthedocs.io/en/latest/crestcmd.html" target="_blank">crest command line arguments documentation</a>.</p> https://cncz.science.ru.nl/en/howto/adres/ Fri, 24 Jun 2022 12:17:55 +0000 https://cncz.science.ru.nl/en/howto/adres/ <h2 id="visiting-address">Visiting address</h2> <p>C&amp;CZ is situated in the Huygens building, ground floor, next to the entrance of wing 5. The room number is HG00.051, the <a href="https://www.ru.nl/fnwi/faculteit/organisatie/ondersteunende-diensten/huisvesting-logistiek/kopie/" target="_blank">systematics behind the room numbers</a> is explained on the website of the [housing &amp; logistics department HL](<a href="http://www.ru.nl/fnwi/ihz" target="_blank">http://www.ru.nl/fnwi/ihz</a> <a href="https://www.radboudnet.nl/science/faculty-services/faculty-services-d-tot-en-met-k/housing-logistics-hl/%29" target="_blank">https://www.radboudnet.nl/science/faculty-services/faculty-services-d-tot-en-met-k/housing-logistics-hl/)</a>.</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-txt" data-lang="txt"><span style="display:flex;"><span>C&amp;CZ, FNWI, Radboud University Nijmegen </span></span><span style="display:flex;"><span>HG00.051 </span></span><span style="display:flex;"><span>Heyendaalseweg 135 </span></span><span style="display:flex;"><span>6525 AJ Nijmegen </span></span></code></pre></div><h2 id="postal-address">Postal address</h2> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-txt" data-lang="txt"><span style="display:flex;"><span>Radboud Universiteit Nijmegen </span></span><span style="display:flex;"><span>Faculty of Science </span></span><span style="display:flex;"><span>C&amp;CZ </span></span><span style="display:flex;"><span>Postbus 9010 </span></span><span style="display:flex;"><span>6500 GL Nijmegen </span></span></code></pre></div><p>Further questions or information <a href="https://cncz.science.ru.nl/en/howto/contact">contact C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/howto/printing-workarounds/ Wed, 25 May 2022 13:44:50 +0000 https://cncz.science.ru.nl/en/howto/printing-workarounds/ <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice info" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#info-notice"></use></svg></span>Info</p> https://cncz.science.ru.nl/en/news/2022-05-24_test-of-ubuntu-2204-on-linux-login-server-lilo8/ Tue, 24 May 2022 16:10:00 +0200 https://cncz.science.ru.nl/en/news/2022-05-24_test-of-ubuntu-2204-on-linux-login-server-lilo8/ <p>As a test of the new version of Ubuntu, 22.04 LTS, we have installed a new login server <code>lilo8.science.ru.nl</code>. In a few months it will replace the four year old login server <code>lilo6</code>. The name <code>lilo</code>, that always points to the newest/fastest login server, will then be moved from the two year old <code>lilo7</code> to the new <code>lilo8</code>. The new <code>lilo8</code> is a Dell PowerEdge R6515 with 1 AMD 7502P 2.5GHz 32-core processor and 64GB RAM. Because we enabled hyper-threading, it is showing 64 processors. For users who want to check the identity of this new server before supplying their Science-password to the new server, see <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">the section about our loginservers</a>. Please <a href="https://cncz.science.ru.nl/en/howto/contact/">report all problems</a> with this new version of Ubuntu Linux.</p> https://cncz.science.ru.nl/en/howto/labservant/ Thu, 19 May 2022 12:05:09 +0000 Luuk Van Summeren https://cncz.science.ru.nl/en/howto/labservant/ <h1 id="general">General</h1> <h1 id="account">Account</h1> <p><em>The procedure below only works for employees with an U-number. For access with an E-number account please contact labservant@science.ru.nl</em><br> </br> All employees and guests who need to access to labservant can obtain an account using the following steps:</p> <ol> <li>Request labservant access via the secretariat of your department, they can grand labservant access via RBS.</li> <li>After labservant access is granted in RBS, login to labservant using your RU account (<a href="https://labservant.science.ru.nl" target="_blank">https://labservant.science.ru.nl</a>)</li> <li>During your first logon an account is created based on your personal data in RBS</li> <li>After a successful login (you should see the Labservant home screen), the lab-manager of your department can grant you the authorizations needed.</li> </ol> <p>When the message “Logged in but no verified check” is displayed after logon, try to login again using a capital letter in your user name (U-number). If the message persists the most probable cause is that labservant access was not granted in RBS by your department’s secretariat.</p> https://cncz.science.ru.nl/en/news/2022-05-17_june-22-ccz-will-move-to-hg00051/ Tue, 17 May 2022 15:05:00 +0200 https://cncz.science.ru.nl/en/news/2022-05-17_june-22-ccz-will-move-to-hg00051/ <p>To make room for the expansion of IMM departments, C&amp;CZ will move June 22 to the ground floor of the Huygens building. The <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ helpdesk</a> will still be directly accessible on the main street with an entrance at HG00.051.</p> https://cncz.science.ru.nl/en/cpk/1295/ Sat, 14 May 2022 09:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1295/ <p>RU/ILS network management will switch to new hardware. This will lead to a network interruption of at most 5 minutes.</p> https://cncz.science.ru.nl/en/cpk/1294/ Tue, 03 May 2022 13:47:00 +0200 https://cncz.science.ru.nl/en/cpk/1294/ <p>This afternoon three coma nodes lost their network because of an incorrect network configuration. They must have shown intermittent network problems earlier. It took us some time to find out what caused this network problem, but when found, it was easy to fix.</p> https://cncz.science.ru.nl/en/cpk/1293/ Thu, 28 Apr 2022 12:02:00 +0200 https://cncz.science.ru.nl/en/cpk/1293/ <p>During the regular change of <a href="https://en.wikipedia.org/wiki/Domain_Name_System_Security_Extensions" target="_blank">DNSSEC</a> keys that secure DNS traffic, an incorrect key was introduced in the external DNS of ru.nl for astro.ru.nl. This made astro.ru.nl disappear from the internet. This error was partly corrected 2022-05-02 at ca. 14:00 hours, but the automatic process used an not accepted encryption. It took ILS until 2022-05-22 to correct that by hand after we eventually noticed the error. Because the DNS answer that astro.ru.nl doesn&rsquo;t exist may be cached for 24 hours, the problem was not completely over until 2022-05-13 13:00. The main problems for users were that mail from an @astro.ru.nl address bounced.</p> https://cncz.science.ru.nl/en/news/2022-04-21_maple-new-version-maple2022/ Thu, 21 Apr 2022 21:39:00 +0200 https://cncz.science.ru.nl/en/news/2022-04-21_maple-new-version-maple2022/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a>, Maple2022, for Windows/macOS/Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share and has been installed on C&amp;CZ managed Linux computers. License codes can be requested from C&amp;CZ helpdesk or postmaster.</p> https://cncz.science.ru.nl/en/howto/chembiooffice/ Tue, 05 Apr 2022 11:52:47 +0000 Ben Polman https://cncz.science.ru.nl/en/howto/chembiooffice/ <p>Starting December 2022 the ChemOffice+ license is being replaced by a ChemDraw Prime campus license.</p> <p>ChemDraw Prime is a complete “entry-level” drawing program that provides all the tools you need to quickly create chemically intelligent, publication-ready chemical structures and reactions, laboratory notes and experiment write-ups. As well as a full set of chemical structure essentials such as rings, bonds, chains, atoms and functional groups, ChemDraw Prime includes chemical and lab equipment templates and handy TLC and Gel Electrophoresis Plate drawing tools.</p> https://cncz.science.ru.nl/en/news/2022-03-22_matlab-r2022a-available/ Tue, 22 Mar 2022 12:16:00 +0100 https://cncz.science.ru.nl/en/news/2022-03-22_matlab-r2022a-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2022a, is available for departments that have licenses. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-disc. All C&amp;CZ-managed Linux machines have this version installed, an older version (/opt/matlab-R2021a/bin/matlab) is still available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/howto/labview/ Fri, 18 Mar 2022 13:43:09 +0000 https://cncz.science.ru.nl/en/howto/labview/ <p>C&amp;CZ administers the licenses for the use of <a href="https://en.wikipedia.org/wiki/LabVIEW" target="_blank">LabVIEW</a> within FNWI. LabVIEW by <a href="https://www.ni.com/" target="_blank">NI</a> is a graphical programming environment engineers use to develop automated research, validation, and production test systems.</p> <p>From version 2022Q3 LabVIEW no longer works standalone and unlimited in terms of time. C&amp;CZ manages a LabVIEW license server with a small number of licenses that have to be renewed every year. Users of this license must be registered on the license server.</p> https://cncz.science.ru.nl/en/news/2022-03-02_new-version-of-mathematica-1301/ Wed, 02 Mar 2022 12:35:00 +0100 https://cncz.science.ru.nl/en/news/2022-03-02_new-version-of-mathematica-1301/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (13.0.1) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>. The installation files for Windows, Linux and macOS can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk, also for older versions of Mathematica. Installation and license info can be <a href="https://cncz.science.ru.nl/en/howto/contact/">requested from C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/news/2022-02-23_survey-computer-labs-and-byod/ Wed, 23 Feb 2022 16:49:00 +0100 Bjorn Bellink https://cncz.science.ru.nl/en/news/2022-02-23_survey-computer-labs-and-byod/ <p>FNWI asks lecturers and students to fill in a <a href="https://u1.survey.science.ru.nl/index.php/735564?lang=en" target="_blank">survey about the computer labs</a>. The reason is that the Faculty of Science plans to remodel its teaching rooms in a multifunctional way, with computer labs that use <a href="https://en.wikipedia.org/wiki/Bring_your_own_device" target="_blank">‘Bring Your Own Device’ (BYOD)</a>. This means that the existing computer labs (terminal rooms, TK’s) in the Huygens building will be phased out in the coming years. In order to plan the further implementation, we would like to <a href="https://u1.survey.science.ru.nl/index.php/735564?lang=en" target="_blank">request your input on the current use of the computer labs by means of a survey</a> in order to determine the pace and which alternatives may be needed to replace the various current uses of the current computer labs. The project group will advise the Faculty Board based on this survey and the data from the actual use of the rooms and equipment (laptops and PC’s).</p> https://cncz.science.ru.nl/en/cpk/1291/ Tue, 22 Feb 2022 13:10:00 +0100 https://cncz.science.ru.nl/en/cpk/1291/ <p>The network switch of the Coma cluster seems to be broken, all attached nodes are separated from the rest of the network. We&rsquo;ll replace the switch a.s.a.p. and (let) analyze the problem after that.</p> https://cncz.science.ru.nl/en/cpk/1292/ Mon, 14 Feb 2022 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1292/ <p>February 14, ILS switched off antique versions of <a href="https://en.wikipedia.org/wiki/Transport_Layer_Security" target="_blank">TLS</a> (1.0 and 1.1) for the <a href="https://www.eduroam.nl/en/" target="_blank">Eduroam</a> authentication on <a href="https://www.ru.nl/ict-uk/" target="_blank">ILS</a> LDAP servers. From then on, SUSE Linux 15.3 clients can&rsquo;t authenticate with U- or s-number. They only have TLS1.2 and the ILS servers offer TLS1.3 first, after that an error occurs. By using the Science-account to authenticate, these users succeed in connecting to Eduroam.</p> https://cncz.science.ru.nl/en/news/2021-12-21_new-version-of-mathematica-1300/ Tue, 21 Dec 2021 15:15:00 +0100 Ben Polman https://cncz.science.ru.nl/en/news/2021-12-21_new-version-of-mathematica-1300/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (13.0.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>. The installation files for Windows, Linux and macOS can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk, also for older versions of Mathematica. Installation and license info can be <a href="https://cncz.science.ru.nl/en/howto/contact/">requested from C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/news/2021-12-15_malicious-network-traffic-will-be-blocked/ Wed, 15 Dec 2021 16:13:00 +0100 https://cncz.science.ru.nl/en/news/2021-12-15_malicious-network-traffic-will-be-blocked/ <p>In the process of handling the <a href="https://en.wikipedia.org/wiki/Log4Shell" target="_blank">Log4Shell</a> vulnerability, it was decided to use the <a href="https://en.wikipedia.org/wiki/Intrusion_detection_system" target="_blank">Intrusion Protection</a> of the FortiNet firewall for all RU network traffic. Don’t hesitate to <a href="https://cncz.science.ru.nl/en/howto/contact/">contatc</a> us if you experience drawbacks.</p> https://cncz.science.ru.nl/en/cpk/1290/ Wed, 15 Dec 2021 12:45:00 +0100 https://cncz.science.ru.nl/en/cpk/1290/ <p>Due to human error, the connection between the new datacenter switches and the central router was interrupted.</p> https://cncz.science.ru.nl/en/news/2021-12-14_yearly-backup-during-christmas-break/ Tue, 14 Dec 2021 14:57:00 +0100 Erik Visser https://cncz.science.ru.nl/en/news/2021-12-14_yearly-backup-during-christmas-break/ <p>Just like every year during the Christmas break, in the next weeks a <a href="https://cncz.science.ru.nl/en/howto/backup#monthly-and-yearly-backup-to-tape">full backup of many servers/filesystems onto tape</a> will be made, that is preserved a long time. This will have the effect that servers will sometimes react slower during this period.</p> https://cncz.science.ru.nl/en/howto/gaussian/ Mon, 13 Dec 2021 09:44:20 +0000 https://cncz.science.ru.nl/en/howto/gaussian/ <h2 id="prerequisities">Prerequisities</h2> <ul> <li>Science (CNCZ) account.</li> <li>Being member of the qm, qmorgchem or qmteaching and gaussian groups (ask Jan for access).</li> <li><a href="https://cncz.science.ru.nl/en/howto/vpn/">Vpn</a> (when working from home).</li> <li>SSH client (linux usually has <a href="https://www.openssh.com/" target="_blank">OpenSSH</a>, windows - for instance <a href="https://mobaxterm.mobatek.net/" target="_blank">MobaXterm</a> or <a href="https://www.putty.org/" target="_blank">Putty</a>).</li> <li>X11 client (linux usually has <a href="https://www.openssh.com/" target="_blank">OpenSSH</a>, windows - for instance <a href="https://mobaxterm.mobatek.net/" target="_blank">MobaXterm</a></li> <li>(optional) <a href="https://winscp.net/eng/download.php" target="_blank">WinSCP</a></li> </ul> <h2 id="video-guides">Video guides</h2> <p><a href="https://youtu.be/krr8xk7LCCA" target="_blank">GUIDE</a> how to setup environment for Gaussian calculations in windows.</p> <h2 id="setting-up-the-environment-to-be-done-once">Setting-up the environment (to be done once)</h2> <p>To submit calculations easily you need to set-up the environment first.</p> https://cncz.science.ru.nl/en/news/2021-12-07_gitlab-pages-installed/ Tue, 07 Dec 2021 15:29:00 +0100 Bram Daams https://cncz.science.ru.nl/en/news/2021-12-07_gitlab-pages-installed/ <p>C&amp;CZ recently installed a GitLab Pages server. With GitLab Pages, you can publish static websites directly from a repository in <a href="https://cncz.science.ru.nl/en/howto/gitlab/">GitLab</a>. To publish a website with Pages, you can use any static site generator, like Hugo, Harp, Mkdocs, or Hexo. You can also publish any website written directly in plain HTML, CSS, and JavaScript. More info and documentation in the <a href="https://gitlab.science.ru.nl/help/user/project/pages/index.md" target="_blank">GitLab Pages documentation</a></p> https://cncz.science.ru.nl/en/howto/mathematica/ Sun, 05 Dec 2021 23:34:06 +0000 https://cncz.science.ru.nl/en/howto/mathematica/ <p><a href="http://www.wolfram.com/products/mathematica/" target="_blank">Mathematica</a> is a mathematical software package made by <a href="http://www.wolfram.com/" target="_blank">Wolfram Research</a>.</p> <p>C&amp;CZ manages the network license for the concurrent use of Mathematica within Radboud University.</p> <p>The license for a small number, ca. 20, of concurrent users of Mathematica, is paid for by C&amp;CZ and may be used freely by students and staff of the Faculty of Science. Until the end of 2023, there temporarily was an unlimited license for all RU staff and students. Users/departments from other parts of the campus can use Mathematica for a yearly reimbursement of the license costs.</p> https://cncz.science.ru.nl/en/howto/maple/ Sun, 05 Dec 2021 23:25:59 +0000 https://cncz.science.ru.nl/en/howto/maple/ <p><a href="http://www.maplesoft.com/products/Maple/" target="_blank">Maple</a> by Waterloo Maple’s <a href="http://www.maplesoft.com/" target="_blank">Maplesoft</a> is an interactive computer-algebra system, for which C&amp;CZ has acquired a license.</p> <p>The license of Maple is a 4-user concurrent license in 2023 and a 2-user in 2024.</p> https://cncz.science.ru.nl/en/news/2021-12-06_maple-new-version-maple20212-and-license-continued/ Mon, 06 Dec 2021 00:24:00 +0100 https://cncz.science.ru.nl/en/news/2021-12-06_maple-new-version-maple20212-and-license-continued/ <p>The C&amp;CZ administered “4 concurrent user” license for Maple has been continued until December 31, 2022. The latest version of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a>, Maple2021.2, for Windows/macOS/Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share and has been installed on C&amp;CZ managed Linux computers. License codes can be requested from C&amp;CZ helpdesk or postmaster.</p> https://cncz.science.ru.nl/en/howto/gitlab/ Fri, 03 Dec 2021 16:33:36 +0000 Bram Daams https://cncz.science.ru.nl/en/howto/gitlab/ <h2 id="about-gitlab">About GitLab</h2> <blockquote> <p>&ldquo;GitLab is an incredibly powerful open source code collaboration platform, git repository manager, issue tracker and code reviewer.&rdquo; Quoted from the <a href="https://about.gitlab.com/features/" target="_blank">GitLab website</a></p> </blockquote> <h2 id="logging-in">Logging in</h2> <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice info" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#info-notice"></use></svg></span>Info</p> https://cncz.science.ru.nl/en/cpk/1289/ Thu, 02 Dec 2021 13:10:00 +0100 https://cncz.science.ru.nl/en/cpk/1289/ <p>Vmhost07 was accidentally shut down. Cause: human error.</p> <p><code>labservanttest</code> <code>neurotech2</code> <code>printvm</code> <code>msql01</code> <code>indicoimapp</code> <code>ldap2</code> <code>eftw</code> <code>jupytervm</code></p> https://cncz.science.ru.nl/en/news/2021-11-23_gitlab-docker-container-registry-service-enabled/ Tue, 23 Nov 2021 14:50:00 +0100 Bram Daams https://cncz.science.ru.nl/en/news/2021-11-23_gitlab-docker-container-registry-service-enabled/ <p>In the C&amp;CZ operated <a href="https://cncz.science.ru.nl/en/howto/gitlab/">GitLab</a> service, GitLab Docker Container Registry service has been enabled. For more information, please have a look at the <a href="https://gitlab.science.ru.nl/help/user/packages/container_registry/index.md" target="_blank">GitLab documentation</a>.</p> https://cncz.science.ru.nl/en/news/2021-11-23_ceph-data-storage-expanded/ Tue, 23 Nov 2021 14:06:00 +0100 Wim Janssen https://cncz.science.ru.nl/en/news/2021-11-23_ceph-data-storage-expanded/ <p>Since the end of 2019, C&amp;CZ offers <a href="https://wiki.cncz.science.ru.nl/index.php?title=Diskruimte&amp;setlang=en#Ceph_Storage" target="_blank">Ceph</a> as a choice for data storage, next to the traditional RAID storage on individual fileservers. Because demand for Ceph storage is rising, the Ceph storage has been upgraded from 1.8 PiB to 2.8 PiB gross. With this upgrade, storage servers have been placed in a central RU datacenter, so the Ceph storage is now distributed over three datacenters. If you want to try whether Ceph suits you, please <a href="https://cncz.science.ru.nl/en/howto/contact/">contact C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/cpk/1288/ Tue, 16 Nov 2021 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1288/ <p>As a result of the expansion of the Ceph storage cluster, the cluster had performance and availability issues. The problems were resolved this morning.</p> https://cncz.science.ru.nl/en/news/2021-11-11_bittorrent-traffic-will-be-blocked/ Thu, 11 Nov 2021 09:59:00 +0100 Simon Oosthoek https://cncz.science.ru.nl/en/news/2021-11-11_bittorrent-traffic-will-be-blocked/ <p>Because <a href="https://en.wikipedia.org/wiki/BitTorrent" target="_blank">BitTorrent</a> is considered to be a security risk (malware/reputation damage) and the traffic primarily consists of illegal downloads, the RU Security Operations Center (SOC) proposed to block this type of traffic from the RU network. Should this cause problems for research or education, we would like to <a href="https://cncz.science.ru.nl/en/howto/contact">hear from you</a>, so we can notify the SOC and perhaps request an exception.</p> https://cncz.science.ru.nl/en/news/2021-11-05_donation-to-free-and-open-source-software-mozilla/ Fri, 05 Nov 2021 16:38:00 +0100 https://cncz.science.ru.nl/en/news/2021-11-05_donation-to-free-and-open-source-software-mozilla/ <p>For the majority of the services C&amp;CZ uses <a href="https://en.wikipedia.org/wiki/Free_software" target="_blank">free software</a> and <a href="https://en.wikipedia.org/wiki/Open-source_software" target="_blank">open source software</a>. Therefore, some time ago the idea emerged that the C&amp;CZ employees would vote each year which projects would receive a donation from C&amp;CZ. This year the <a href="https://foundation.mozilla.org/" target="_blank">Mozilla Foundation</a> was chosen. Many people will know <a href="https://en.wikipedia.org/wiki/Firefox" target="_blank">the Mozilla Firefox</a> webbrowser and the mailclient <a href="https://en.wikipedia.org/wiki/Mozilla_Thunderbird" target="_blank">Mozilla Thunderbird</a> and maybe use it hours a day. But <a href="https://foundation.mozilla.org/en/what-we-do/" target="_blank">the Mozilla Foundation does a lot more</a> to try to ensure the internet remains a public resource that is open and accessible to us all.</p> https://cncz.science.ru.nl/en/news/2021-10-29_peage-workaround-for-printnightmare/ Fri, 29 Oct 2021 14:58:00 +0200 https://cncz.science.ru.nl/en/news/2021-10-29_peage-workaround-for-printnightmare/ <p>C&amp;CZ has a workaround that one can try if on a self-managed/BYOD Windows pc one has problems printing due to the <a href="https://meldingen.ru.nl/detail.php?id=1167&amp;lang=en&amp;tg=0&amp;f=0%e2%85%88" target="_blank">RU Peage PrintNightmare issue</a>. This workaround can be found at the <a href="https://wiki.cncz.science.ru.nl/index.php?title=Peage&amp;setlang=en#.5BPrintNightmare_probleem_workaround.5D.5BPrintNightmare_problem_workaround.5D" target="_blank">C&amp;CZ Peage page</a>.</p> https://cncz.science.ru.nl/en/news/2021-10-15_national-instruments-labview-spring-2021-on-install-network-share/ Fri, 15 Oct 2021 11:59:00 +0200 https://cncz.science.ru.nl/en/news/2021-10-15_national-instruments-labview-spring-2021-on-install-network-share/ <p>To make it easier to install <a href="https://www.ni.com/nl-nl/shop/labview.html" target="_blank">NI LabVIEW</a> for departments that participate in the license, the newly arrived “Spring 2021” version has been copied to the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share. Install media can also be borrowed. License codes can be obtained from C&amp;CZ helpdesk or postmaster. For <a href="https://www.ni.com/nl-nl/innovations/white-papers/15/install-ni-academic-software-for-mac-os-x-and-linux.html" target="_blank">macOS/Linux this version is necessary</a>, for MS Windows one can also <a href="https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019Ke3SAE&amp;l=nl-NL" target="_blank">install LabVIEW from the NI website</a>.</p> https://cncz.science.ru.nl/en/cpk/1287/ Tue, 12 Oct 2021 11:50:00 +0200 https://cncz.science.ru.nl/en/cpk/1287/ <p>Two modules of an important switch in the main C&amp;CZ server room lost power during the preparation of planned maintenance. This disconnected ca. 75% of the servers in the room from the network. Moving the modules to new PDU&rsquo;s kimited the downtime to ca. 15 minutes.</p> https://cncz.science.ru.nl/en/cpk/1286/ Mon, 11 Oct 2021 04:40:00 +0200 https://cncz.science.ru.nl/en/cpk/1286/ <p>An error in the management software prevented all license processes from starting correctly at the reboot of the license server. After fixing this error, all licenses were available again.</p> https://cncz.science.ru.nl/en/news/2021-10-07_fnwi-network-cable-administration-by-isc-networks/ Thu, 07 Oct 2021 18:15:00 +0200 Bjorn Bellink https://cncz.science.ru.nl/en/news/2021-10-07_fnwi-network-cable-administration-by-isc-networks/ <p>As of October 11, 2021, C&amp;CZ will transfer the management of the fixed data connection points (network outlets, switch ports) in the Faculty of Science buildings (Huygens, Mercator, HFML/FELIX, Goudsmit, Proeftuin) to <a href="https://cncz.science.ru.nl/en/howto/contact/#ils-helpdesk">ILS networks</a>. This concerns both activating/deactivating an outlet (patching) and adjusting settings or solving malfunctions. Taking care of the IP addresses (DNS/DHCP) and the shielding/security by means of Access Control Lists will remain with <a href="https://cncz.science.ru.nl/en/howto/contact/">C&amp;CZ</a>. All requests and malfunctions relating to data connection points can therefore be addressed to the <a href="https://cncz.science.ru.nl/en/howto/contact/#ils-helpdesk">Helpdesk of the ISC</a> as of October 11.</p> https://cncz.science.ru.nl/en/news/2021-10-03_matlab-r2021b-available/ Sun, 03 Oct 2021 14:10:00 +0200 https://cncz.science.ru.nl/en/news/2021-10-03_matlab-r2021b-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2021b, is available for departments that have licenses. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-disc. All C&amp;CZ-managed Linux machines will soon have this version installed, an older version (/opt/matlab-R2021a/bin/matlab) is still available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/news/2021-10-01_bigbluebutton-videoconferencing-updated/ Fri, 01 Oct 2021 15:40:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/news/2021-10-01_bigbluebutton-videoconferencing-updated/ <p>The experimental BigBlueButton videoconferencing website has been moved and updated. The new URL is <a href="https://bigbluebutton.science.ru.nl/" target="_blank">https://bigbluebutton.science.ru.nl/</a> , you can create your own login, or use the one you had on <a href="https://bigbb.science.ru.nl" target="_blank">https://bigbb.science.ru.nl</a>, which is being redirected to the new site. The status remains “experimental”; without warranty.</p> https://cncz.science.ru.nl/en/news/2021-09-28_avs-science-now-part-of-avs-radboud/ Tue, 28 Sep 2021 13:02:00 +0200 Bjorn Bellink https://cncz.science.ru.nl/en/news/2021-09-28_avs-science-now-part-of-avs-radboud/ <p>As of October 1, the <a href="https://www.ru.nl/science/about-the-faculty/organisation/supporting-services/audio-visual-service/" target="_blank">Science AVS</a> will be merged with <a href="https://www.ru.nl/fb/english/services/media-technology/" target="_blank">Radboud AVS</a>. This reorganization is a result of the improvement programme of facility management and real estate, with bundling of similar services on campus. This bundling creates a campus-wide AV service that will be controlled in its entirety by <a href="https://www.ru.nl/fb/english/" target="_blank">Campus &amp; Facilities</a>. For FNWI users, the existing contact options (email, telephone) and availability of local support will be continued for the time being in accordance with the existing situation. There will be further communication about any changes in the future. The AVD Faculty of Science resorted under C&amp;CZ since January 2018.</p> https://cncz.science.ru.nl/en/howto/vpn/ Fri, 24 Sep 2021 10:55:58 +0000 Wim Janssen https://cncz.science.ru.nl/en/howto/vpn/ <h1 id="vpn">VPN</h1> <p>A VPN makes it possible to get secure access to the internet or to the campus network from anywhere. The computer at home (or anywhere on the internet) in the latter case becomes part of the campus network. In this way you can get access to services that are normally only accessible from computers on campus. The most common of such services are <a href="https://cncz.science.ru.nl/en/howto/diskruimte/">connecting to disk shares</a> or to special servers.</p> https://cncz.science.ru.nl/en/cpk/1285/ Fri, 17 Sep 2021 14:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1285/ <p>Course software that had been tested caused an overload of the fileserver when it was used by 100 students. The performance of the fileserver was impaired for all users of network shares of this server.</p> https://cncz.science.ru.nl/en/news/2021-09-15_major-ru-network-maintenance-october-9-0830-1500/ Wed, 15 Sep 2021 16:42:00 +0200 Wim Janssen https://cncz.science.ru.nl/en/news/2021-09-15_major-ru-network-maintenance-october-9-0830-1500/ <p>ISC network <a href="https://www.ru.nl/systeem-meldingen/" target="_blank">announcement.</a></p> <p>Saturday October 9, between 08:00 and 15:00, major RU network maintenance will be carried out. During the maintenance window there will be interruptions of maximum 15 minutes. For the FNWI buildings, the maintenance will end 15:00 hours, for the other RU buildings, it might continue until 19:00 hours.</p> https://cncz.science.ru.nl/en/news/2021-08-17_pcs-in-study-area-and-library-of-science/ Tue, 17 Aug 2021 16:47:00 +0200 https://cncz.science.ru.nl/en/news/2021-08-17_pcs-in-study-area-and-library-of-science/ <p>Since the summer of 2021, the computers in the Faculty of Science Study Area (HG00.201) and the Library of Science (HG00.011) are no longer being managed by C&amp;CZ, but by the <a href="https://cncz.science.ru.nl/en/howto/contact/#ils-helpdesk">ILS</a>. makes all Windows computers in all RU Study Areas and Library locations uniform. General information about the Library of Science (such as opening hours and reservation of a study place), can be found at <a href="https://www.ru.nl/library/library/library-locations/library-science/" target="_blank">the Library of Science website</a>. In addition to these Windows-only computers, eight Linux computers, that are managed by C&amp;CZ, are available in the front of the Study Area (HG00.201).</p> https://cncz.science.ru.nl/en/news/2021-06-19_job-offer-systems-developeradministrator-research-and-education/ Sat, 19 Jun 2021 23:50:00 +0200 Bjorn Bellink https://cncz.science.ru.nl/en/news/2021-06-19_job-offer-systems-developeradministrator-research-and-education/ <p>C&amp;CZ is looking for a new colleague: systems developer/administrator research and education. For more info see <a href="https://www.ru.nl/werken-bij/vacature/details-vacature/?recid=1156671&amp;doel=embed&amp;taal=nl" target="_blank">the RU job offer page</a>.</p> https://cncz.science.ru.nl/en/news/2021-06-18_expansion-of-science-datacenter-to-forum-building/ Fri, 18 Jun 2021 11:18:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/news/2021-06-18_expansion-of-science-datacenter-to-forum-building/ <p>Because FNWI research groups are increasingly purchasing powerful computers/computing clusters with many CPUs and GPUs, C&amp;CZ has expanded the data center to the existing server room of Radboud Services, in the Forum on the other side of Heijendaalseweg. As a result, there will be sufficient physical space, power and cooling for the servers purchased by departments in the coming years.</p> https://cncz.science.ru.nl/en/news/2021-05-23_new-version-of-mathematica-1230/ Sun, 23 May 2021 15:27:00 +0200 https://cncz.science.ru.nl/en/news/2021-05-23_new-version-of-mathematica-1230/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (12.3.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>. The installation files for Windows and Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk, also for older versions of Mathematica. Departments that take part in the license can request installation and license info from C&amp;CZ.</p> https://cncz.science.ru.nl/en/howto/print/ Mon, 10 May 2021 19:13:27 +0000 Wim Janssen https://cncz.science.ru.nl/en/howto/print/ <h1 id="printing">Printing</h1> <blockquote> <p>Through the Radboud University printing system, students and employees are able to print, scan, and copy anywhere on campus, regardless of the location or building at which they study or work. When printing, you send your print job to a print queue instead of a specific printer. The next step is to simply retrieve your print job from any printer. <a href="https://www.ru.nl/en/services/services-and-facilities/ict/printing-copying-and-scanning/printing" target="_blank">Read more&hellip;</a></p> </blockquote> <h2 id="printing-from-own-laptop">Printing from own laptop.</h2> <p>In case printing does not work on self managed devices, documents can be uploaded to <a href="https://peage.ru.nl" target="_blank">https://peage.ru.nl</a>. Other workarounds are described <a href="../printing-workarounds">here</a>.</p> https://cncz.science.ru.nl/en/howto/mestrenova/ Mon, 26 Apr 2021 15:31:55 +0000 Luuk Van Summeren https://cncz.science.ru.nl/en/howto/mestrenova/ <p>Mnova is a multivendor software suite designed for processing data from NMR, LC-MS, GC-MS, and Electronic &amp; Vibrational Spectroscopic techniques (UV-VIS, FT-IR etc.).</p> <p>Mnova is available for installation on Windows, Linux, and MacOS machines. Employees and students from the Faculty of Science can install mestreNova under the university site licence on their personal computer.</p> <p>Currently the faculty holds a site license for MNova 15. Installation &amp; license files can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">install share</a> in <code>\install\science\MestreNova</code>.</p> https://cncz.science.ru.nl/en/cpk/1284/ Sat, 24 Apr 2021 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1284/ <p>A broken PDU has offlined a switch, which has caused the VPN server to be unreachable (and several other things, which don&rsquo;t affect users).</p> https://cncz.science.ru.nl/en/news/2021-04-20_mailman-lists-sender-address-change-from-sender-to-list-address/ Tue, 20 Apr 2021 11:22:00 +0200 https://cncz.science.ru.nl/en/news/2021-04-20_mailman-lists-sender-address-change-from-sender-to-list-address/ <p><a href="https://en.wikipedia.org/wiki/DMARC" target="_blank">DMARC</a> is increasingly being used as a spamfilter, checking whether the sender ought to send mail via this route. To comply with this for mail sent through <a href="https://wiki.cncz.science.ru.nl/index.php?title=Categorie%3AEmail&amp;setlang=en#.5Bnl.5DMailing_lijsten.5B.2Fnl.5D.5Ben.5DMailing_lists.5B.2Fen.5D" target="_blank">Mailman</a>, we will change the From: sender address to the list address. The current:</p> <p><code>&gt; From: Some User &lt;some.user@somewhere.domain&gt;</code> <code>&gt; Sender: &quot;listname&quot; &lt;listname-bounces@science.ru.nl&gt;</code></p> <p>will be changed to:</p> <p><code>&gt; From: Some User via listname &lt;listname@science.ru.nl&gt;</code> <code>&gt; Reply-To: Some User &lt;some.user@somewhere.domain&gt;</code> <code>&gt; Sender: &quot;listname&quot; &lt;listname-bounces@science.ru.nl&gt;</code></p> <p>If you filter or forward mail automatically, you might need to change the filter.</p> https://cncz.science.ru.nl/en/news/2021-04-20_linux-login-server-lilo5-decommissioned/ Tue, 20 Apr 2021 11:10:00 +0200 Simon Oosthoek https://cncz.science.ru.nl/en/news/2021-04-20_linux-login-server-lilo5-decommissioned/ <p>The support for Ubuntu 16.04 LTS ends on April 30th, 2021. Therefore we will turn off lilo5 with this version of Ubuntu on May 1st, 2021. The default login server (lilo.science.ru.nl) points to lilo7 with Ubuntu 20.04 LTS, but lilo6 with Ubuntu 18.04 LTS will remain available until support for this version ends in 2023. The <a href="https://wiki.cncz.science.ru.nl/Hardware_servers#Linux_.5Bloginservers.5D.5Blogin_servers.5D" target="_blank">signatures of the C&amp;CZ loginservers</a> can be checked. Please also check these tips for improving your SSH settings <a href="https://wiki.cncz.science.ru.nl/SSH#.5Ben.5DSSH_tips_and_settings.5B.2Fen.5D.5Bnl.5DSSH_Instellingen_en_tips.5B.2Fnl.5D" target="_blank">tips for improving your SSH settings</a>.</p> https://cncz.science.ru.nl/en/cpk/1283/ Wed, 14 Apr 2021 09:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1283/ <p>Due to an emergency maintenance, the central microsoft exchange server is unavailable for 4 hours. This may also affect systems that are dependent on exchange. E-mail and calendar functionality is expected to be restored when the maintenance is done around 13:30 Today.</p> https://cncz.science.ru.nl/en/news/2021-03-30_maple-new-version-maple2021/ Tue, 30 Mar 2021 18:01:00 +0200 https://cncz.science.ru.nl/en/news/2021-03-30_maple-new-version-maple2021/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/maple/">Maple</a>, Maple2021, can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a> network share and has been installed on C&amp;CZ managed Linux computers. License codes can be requested from C&amp;CZ helpdesk or postmaster by departments that take part in the license.</p> https://cncz.science.ru.nl/en/cpk/1282/ Wed, 24 Mar 2021 19:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1282/ <p>During a routine upgrade of ceph, a bug in the latest version manifested itself and made the ceph manager unreachable. After aborting the upgrade and with help from the ceph-users mailinglist, everything became available again using a workaround.</p> https://cncz.science.ru.nl/en/cpk/1281/ Wed, 24 Mar 2021 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1281/ <p>Because of security issues the last remaining Windows 7 machines wil be disabled, effective 24-03-2021, as member of the Active Directory Domain B-FAC. Please upgrade these computers to a more up-to-date OS.</p> https://cncz.science.ru.nl/en/news/2021-03-23_windows-7-computers-disabled-in-b-fac-domain/ Tue, 23 Mar 2021 10:22:00 +0100 Wim Janssen https://cncz.science.ru.nl/en/news/2021-03-23_windows-7-computers-disabled-in-b-fac-domain/ <p>Because of security issues the last remaining Windows 7 machines wil be disabled, effective 24-03-2021, as member of the Active Directory Domain B-FAC. Please upgrade these computers to a more up-to-date OS. See also previous announcements on <a href="https://wiki.cncz.science.ru.nl/Nieuws#.5BMicrosoft_Windows_10_upgrade.5D.5BMicrosoft_Windows_10_upgrade.5D" target="_blank">Windows 10</a> and <a href="https://wiki.cncz.science.ru.nl/Nieuws_archief#.5BWindows_7_stopt_januari_2020:_Upgrade_nu.21.5D.5BWindows_7_ends_January_2020:_Upgrade_now.21.5D" target="_blank">the end of Windows 7</a>.</p> https://cncz.science.ru.nl/en/news/2021-03-19_matlab-r2021a-available/ Fri, 19 Mar 2021 18:36:00 +0100 https://cncz.science.ru.nl/en/news/2021-03-19_matlab-r2021a-available/ <p>The latest version of <a href="https://cncz.science.ru.nl/en/howto/matlab/">Matlab</a>, R2021a, is available for departments that have licenses. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the <a href="https://cncz.science.ru.nl/en/tags/software">install</a>-disc. All C&amp;CZ-managed Linux machines will soon have this version installed, an older version (/opt/matlab-R2020a/bin/matlab) is still available temporarily. The C&amp;CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures.</p> https://cncz.science.ru.nl/en/cpk/1280/ Wed, 17 Mar 2021 21:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1280/ <p>To change the network of lilo7, we need to reboot this loginserver. If you want a stable connection to a loginserver during this downtime, please use lilo6 or the soon to be taken down lilo5. For more info see <a href="https://wiki.cncz.science.ru.nl/index.php?title=Hardware_servers&amp;setlang=en#Linux_.5Bloginservers.5D.5Blogin_servers.5D" target="_blank">the page on C&amp;CZ loginservers</a>.</p> https://cncz.science.ru.nl/en/news/2021-03-09_signed-ssh-keys-for-loginservers-and-compute-clusternodes/ Tue, 09 Mar 2021 23:53:00 +0100 Ben Polman https://cncz.science.ru.nl/en/news/2021-03-09_signed-ssh-keys-for-loginservers-and-compute-clusternodes/ <p>From now on, C&amp;CZ signs the SSH keys of e.g. <a href="https://wiki.cncz.science.ru.nl/index.php?title=Hardware_servers&amp;setlang=en#Linux_.5Bloginservers.5D.5Blogin_servers.5D" target="_blank">loginservers and compute clusternodes</a>. That makes it possible for users, as explained on that page, to add the public signing key in the private .ssh/known_hosts, which makes one trust all C&amp;CZ signed SSH servers. Whenever C&amp;CZ deploys a new ‘lilo’, the question whether this might be spoofing will not occur then.</p> https://cncz.science.ru.nl/en/news/2021-03-09_site-license-for-gaussian-16-and-gaussview-6/ Tue, 09 Mar 2021 23:20:00 +0100 Ben Polman https://cncz.science.ru.nl/en/news/2021-03-09_site-license-for-gaussian-16-and-gaussview-6/ <p>Organic Chemistry purchased a site license for the use of <a href="https://gaussian.com/gaussian16/" target="_blank">Gaussian 16</a> and <a href="https://gaussian.com/gaussview6/" target="_blank">GaussView 6</a> with the GMMX Module on Linux. The software has been installed on the <a href="https://wiki.cncz.science.ru.nl/index.php?title=Hardware_servers&amp;setlang=en#.5BReken-.5D.5BCompute_.5Dservers.2Fclusters" target="_blank">cn-cluster</a>. Departments that want to use this, can contact Prof. Jana Roithova or <a href="https://cncz.science.ru.nl/en/howto/contact/">Postmaster</a>.</p> https://cncz.science.ru.nl/en/cpk/1279/ Fri, 05 Mar 2021 07:45:00 +0100 https://cncz.science.ru.nl/en/cpk/1279/ <p>Yesterday the SSD bootdisk of this VM host reported the first problems. This morning this had the effect of stopping all VMs running on this host. By moving the VMs to a different VM host, the problem has been solved. We will investigate how to best prevent this problem in the future or lessen its impact.</p> https://cncz.science.ru.nl/en/cpk/1277/ Sat, 27 Feb 2021 08:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1277/ <p>The ISC <a href="https://www.ru.nl/systeem-meldingen/" target="_blank">announced</a> that Saturday February 27 08:00-20:00 major RU network maintenance work will be carried out. This will mean that all RU services will be unavailable several times for at most an hour. This concerns all RU services including those of FNWI/C&amp;CZ: e-mail, VPN, wifi, BASS, OSIRIS, Brightspace, Syllabus+, Corsa, etc.</p> https://cncz.science.ru.nl/en/cpk/1278/ Thu, 25 Feb 2021 17:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1278/ <p>As of Thursday afternoon, the lilo6 is down due to hardware issues. Because lilo6 was the default linux login server (lilo referred to lilo6), this affected many users of lilo. The impact is limited, because we have alternative lilo&rsquo;s, namely lilo5 and lilo7. As of March 1st lilo now refers to lilo7, ssh will warn about DNS SPOOFING, which is due to the difference host keys for lilo7 <code>ECDSA SHA256:si3g2elo5m6TShx3PjX0+vF50pZ8NK/iXz/ESB+ZeP0</code></p> https://cncz.science.ru.nl/en/news/2021-02-24_major-ru-network-maintenance-saturday-feb-27-0800-2000/ Wed, 24 Feb 2021 14:07:00 +0100 https://cncz.science.ru.nl/en/news/2021-02-24_major-ru-network-maintenance-saturday-feb-27-0800-2000/ <p>The ISC <a href="https://www.ru.nl/systeem-meldingen/" target="_blank">announced</a> that Saturday February 27 08:00-20:00 major RU network maintenance work will be carried out. This will mean that all RU services will be unavailable several times for at most an hour. This concerns all RU services including those of FNWI/C&amp;CZ: e-mail, VPN, wifi, BASS, OSIRIS, Brightspace, Syllabus+, Corsa, etc.</p> https://cncz.science.ru.nl/en/cpk/1276/ Sun, 21 Feb 2021 07:10:00 +0100 https://cncz.science.ru.nl/en/cpk/1276/ <p>The central DNS servers for ru.nl for external requests had problems, because they received too many requests, which resulted in science.ru.nl and others not being found. DNS names within ru.nl then will not resolve to an IP address. We enlarged some TTLs (Time-To+lives) to try to lessen the problem. These small TTLs were meant to be able to move a service to a new server in case of problems, but now they just make the problem bigger. After starting VPN you won&rsquo;t notice this problem, because the internal DNS servers that you use then are not affected. Changes to the RU DNS servers hopefully lessened or removed the problems as of 2021-02-23 14:30.</p> https://cncz.science.ru.nl/en/cpk/1275/ Thu, 11 Feb 2021 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1275/ <p>DNS-servers for ru.nl did not serve information about subdomains such as science.ru.nl. Thus no DNS-name will resolve to an IP address at FNWI. A workaround is to use as DNS servers: 131.174.224.4 en 8.8.8.8. If you try to connect to a service for the first time after ca 11:15, you&rsquo;ll get an error like: &ldquo;No such domain&rdquo; or &ldquo;Cannot resolve&rdquo;. Restarting RU DNS servers at 12:45 may have fixed the problem. Without a real explanation, the problem went away after a few hours.</p> https://cncz.science.ru.nl/en/cpk/1274/ Sun, 07 Feb 2021 04:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1274/ <p>Services will not be available for a while because of a GitLab and Mattermost upgrade.</p> https://cncz.science.ru.nl/en/cpk/1273/ Wed, 03 Feb 2021 13:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1273/ <p>The expiration date of the certificate of our <a href="https://cncz.science.ru.nl/en/howto/vpn">VPNsec</a> service was apparently not yet checked regularly. This made it possible for the certificate to expire. We put a new certificate into place within an hour. Of course we will check this certificate regularly from now on. For Apple/Mac we needed to construct a new mobileconfig, this took some time, because in the meantime RU had moved to a different Certificate Authority. For Apple macOS this was ready at the end of Feb. 4, with a new installation procedure. For Apple iOS (iPhone/iPad) the old profile has to be deleted and a new mobileconfig has to be installed.</p> https://cncz.science.ru.nl/en/news/2021-01-26_end-of-science-openid-service/ Tue, 26 Jan 2021 17:39:00 +0100 Remco Aalbers https://cncz.science.ru.nl/en/news/2021-01-26_end-of-science-openid-service/ <p>The Science <a href="https://openid.science.ru.nl/" target="_blank">OpenID-service</a>, that was introduced in 2007 as authentication method for the wikis managed by C&amp;CZ, will be terminated March 1, 2021. All wikis will be switched over to a more modern authentication method via <a href="https://en.wikipedia.org/wiki/Security_Assertion_Markup_Language" target="_blank">SAML</a>.</p> https://cncz.science.ru.nl/en/news/2021-01-26_new-improved-installation-methods-for-matlab/ Tue, 26 Jan 2021 17:28:00 +0100 https://cncz.science.ru.nl/en/news/2021-01-26_new-improved-installation-methods-for-matlab/ <p>The old installation method, used with Matlab R2020b, highlighted several problems for some users. The solution was found in a different installation method. Some users will prefer the new method, others the old one. Each has its pros and cons. The new installation method makes Matlab easy to install, also for older versions and can be done with a small download if you only want a few toolboxes. But it requires signing in at The MathWorks and thus has a more complex workflow. The old installation method does not require registration and has an easy workflow, but it always requires a large download and non-expert macOS users will find it troublesome because the newest macOS version will quarantine the download.</p> https://cncz.science.ru.nl/en/cpk/1272/ Mon, 25 Jan 2021 07:15:00 +0100 https://cncz.science.ru.nl/en/cpk/1272/ <p><itemTags>medewerkers, studenten</itemTags></p> <p>Due to a management operation (planned around this time), the DIY website was unusable. Since the time was very early, it&rsquo;s expected nobody was inconvenienced by this temporary unavailability.</p> https://cncz.science.ru.nl/en/cpk/1271/ Fri, 22 Jan 2021 10:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1271/ <p><itemTags>medewerkers, studenten</itemTags></p> <p>A configuration change unwantedly made the smtp service unusable. When we noticed this, it was repaired immediately.</p> https://cncz.science.ru.nl/en/cpk/1270/ Thu, 21 Jan 2021 15:52:00 +0100 https://cncz.science.ru.nl/en/cpk/1270/ <p><itemTags>medewerkers, studenten</itemTags></p> <p>A configuration change had as unwanted effect the disappearance of all very long mail aliases. When this was reported next morning, it was repaired immediately.</p> https://cncz.science.ru.nl/en/cpk/1269/ Thu, 07 Jan 2021 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1269/ <p><itemTags>medewerkers, studenten</itemTags></p> <p>Due to a simple management command the switch (as-ak008-04) crasht and had to be reset manually. The switch sits between the network and servers for gitlab+mattermost, licenses and the database for DHZ(diy).</p> https://cncz.science.ru.nl/en/news/2021-01-05_new-version-of-mathematica-1220/ Tue, 05 Jan 2021 17:10:00 +0100 https://cncz.science.ru.nl/en/news/2021-01-05_new-version-of-mathematica-1220/ <p>A new version of <a href="https://cncz.science.ru.nl/en/howto/mathematica/">Mathematica</a> (12.2.0) has been installed on all C&amp;CZ managed Linux systems, older versions can still be found in <code>/vol/mathematica</code>. The installation files for Windows and Linux can be found on the <a href="https://cncz.science.ru.nl/en/howto/install-share/">Install</a>-disk, also for older versions of Mathematica. Departments that take part in the license can request installation and license info from C&amp;CZ.</p> https://cncz.science.ru.nl/en/cpk/1268/ Fri, 27 Nov 2020 04:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1268/ <p><itemTags>medewerkers, studenten</itemTags></p> <p>Services will not be available for a while because of a GitLab and Mattermost upgrade.</p> https://cncz.science.ru.nl/en/howto/laptop-pool/ Fri, 14 Aug 2020 08:36:14 +0000 https://cncz.science.ru.nl/en/howto/laptop-pool/ <h2 id="lending-laptop-pool">Lending laptop pool</h2> <h3 id="general-remarks">General remarks</h3> <p>The Faculty of Science has a pool of 60 RU-standard laptops that can be lent by employees and students of the Faculty. These are <a href="https://cncz.science.ru.nl/en/howto/terminalkamers/">standard-RU laptops</a>. They are almost identical in use to the pc’s in the <a href="https://cncz.science.ru.nl/en/howto/terminalkamers/">computer labs</a>. The main difference is that reservation is not through Housing &amp; Logistics.</p> <p>The reservation of the laptops is administered by the <a href="https://www.ru.nl/en/about-us/the-campus/buildings-and-spaces/huygens-building/library-of-science" target="_blank">Library of Science</a>. Use for FNWI education has precedence.</p> https://cncz.science.ru.nl/en/cpk/1267/ Wed, 01 Jul 2020 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1267/ <p>The ISC announced: For security reasons, the certificate of the wifi server will be replaced in the evening of Friday, July 10. This has consequences for connecting your mobile device to Eduroam when you’re on campus:</p> <p>• If you get the message that you have to accept the new certificate to use eduroam, choose &lsquo;yes&rsquo;. You can then use eduroam again;</p> <p>• If you don&rsquo;t get this message and can&rsquo;t connect to Eduroam, choose the wireless network &rsquo;eduroam-config&rsquo;. Accept the terms and conditions. Follow the instructions to reinstall Eduroam.</p> https://cncz.science.ru.nl/en/howto/coursefiles/ Tue, 23 Jun 2020 16:22:15 +0000 https://cncz.science.ru.nl/en/howto/coursefiles/ <p>How can I access my course file?</p> <p>The course files is an network disk that can be attached on campus. Off-campus, VPN must be used to attach this network disk. More info on <a href="https://cncz.science.ru.nl/en/howto/netwerkschijf/">how to attach a network disk</a> and on <a href="https://cncz.science.ru.nl/en/howto/vpn/">using VPN</a> is available. Linux users have the alternative to login with ‘ssh’ on the Science loginserver lilo, followed by a cd to /vol/cursusdossiers.</p> <p>Windows:</p> <p>At ‘File Explorer’, choose the option ‘Map Network Drive’, and type in <a href="file://cursusdossiers-srv.science.ru.nl/cursusdossiers">file://cursusdossiers-srv.science.ru.nl/cursusdossiers</a> and pick your drive letter of choice. By doing so, you will link up the network disk to your local computer. The next options are also possible to get a more limited set of courses:</p> https://cncz.science.ru.nl/en/cpk/1265/ Thu, 18 Jun 2020 15:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1265/ <p>Several parts have been replaced. We assume the problem, that occurred twice, is now resolved. For dual-boot pcs, the boot menu was served by an alternative method during the repair.</p> https://cncz.science.ru.nl/en/cpk/1264/ Wed, 17 Jun 2020 11:11:00 +0200 https://cncz.science.ru.nl/en/cpk/1264/ <p>Affected : Users of Science VPN and Eduroam based on science account</p> <p>The certificate of the LDAP servers has been replaced this morning, this has also changed the certificate chain. The radius server uses LDAP as authentication backend and in the radius configuration the certificate chain had to be changed too. This was initially overlooked. Radius is the authentication mechanism used by all VPN servers and Eduroam</p> https://cncz.science.ru.nl/en/cpk/1263/ Wed, 17 Jun 2020 03:38:00 +0200 https://cncz.science.ru.nl/en/cpk/1263/ <p>The server went down in the same way as the previous time (3rd of June 2020). The cause is most likely a system board problem. This part will be replaced Tomorrow by a support engineer.</p> https://cncz.science.ru.nl/en/cpk/1262/ Wed, 03 Jun 2020 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1262/ <p>by a website) and various websites.</p> <p>The server couldn&rsquo;t be reached after the scheduled weekly reboot, not even on its management interface. Because also C&amp;CZ employees work from home and the interruption didn&rsquo;t get enough urgency fast enough, the interruption lasted too long, apologies for that. The support partner has been contacted and the server has been updated, but the origin of the problem is still unclear. We will also look at making these services more redundant or more easily movable to a different server.</p> https://cncz.science.ru.nl/en/cpk/1261/ Mon, 18 May 2020 09:50:00 +0200 https://cncz.science.ru.nl/en/cpk/1261/ <p>Due to a failed BIOS upgrade, the hardware of the database server appears to be bricked. We transfered the disks to another machine (cn00) and all database services are now up again, at the cost of not having cn00 running. When the hardware is working well again, we will swap it all back and restore the original situation.</p> https://cncz.science.ru.nl/en/cpk/1260/ Mon, 18 May 2020 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1260/ <p>Due to a failed BIOS upgrade, the hardware of the database server appears to be bricked. We transfered the disks to another machine (cn00) and all database services are now up again, at the cost of not having cn00 running. When the hardware is working well again, we will swap it all back and restore the original situation.</p> <p>Update May 19th, 12:15 : hardware fixed, situation back to the original state.</p> https://cncz.science.ru.nl/en/cpk/1259/ Sun, 19 Apr 2020 15:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1259/ <p>Due to performance tuning having gone wrong the jitsi.science.ru.nl conference rooms cannot be joined by more than one person at the moment. Solved by reinstalling server.</p> https://cncz.science.ru.nl/en/cpk/1258/ Mon, 13 Apr 2020 14:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1258/ <p>The new certificate of the Science mailserver hadn&rsquo;t yet been placed in the right place. The expiration of the old certificate caused a problem for Science mail users, that was resolved by replacing the old certificate.</p> https://cncz.science.ru.nl/en/cpk/1266/ Wed, 25 Mar 2020 17:52:00 +0100 https://cncz.science.ru.nl/en/cpk/1266/ <p>March 25, a rule &ldquo;2020 Radboud Universiteit&rdquo; was added to the Science spamfilter. Recently, this matched RU-central mailings. Therefore RU-wide mailings from e.g. the RU Board and Radboud Recharge have erroneously been delivered in the Spam folder of Science emplyees. The Science spamfilter tries to fight spam and phishing, this is partly manual work in which errors can&rsquo;t be excluded. C&amp;CZ apologizes for the inconvenience this has caused.</p> https://cncz.science.ru.nl/en/cpk/1257/ Wed, 11 Dec 2019 06:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1257/ <p>A critical security update for GitLab has been released and is being installed this moment. During the update, GitLab is offline.</p> https://cncz.science.ru.nl/en/cpk/1256/ Tue, 05 Nov 2019 05:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1256/ <p>The virtual machine host ‘oscar’ stopped running at 5:30am. The listed virtual machines are not running at the moment. We are working on it. Update: Resolved. Again, a broken LVM snapshot caused the problem.</p> https://cncz.science.ru.nl/en/cpk/1255/ Wed, 23 Oct 2019 16:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1255/ <p>A failed PDU caused the servers with a single Powersupply to die and restart after the PDU was replaced. Running jobs were not finished on these nodes.</p> https://cncz.science.ru.nl/en/cpk/1254/ Sun, 06 Oct 2019 10:35:00 +0200 https://cncz.science.ru.nl/en/cpk/1254/ <p>A loose power cable caused an interruption of one of our web servers. The machine is equipped with redundant power supplies. It’s not clear why a single loose cable caused a service interruption.</p> https://cncz.science.ru.nl/en/howto/intel-compilers/ Thu, 26 Sep 2019 15:40:21 +0000 https://cncz.science.ru.nl/en/howto/intel-compilers/ <h3 id="new-intel-compilers-intel-oneapi-base-and-hpc-toolkits">New Intel compilers (Intel OneAPI Base and HPC Toolkits)</h3> <p>The newest versions of the Intel compilers, available under the name Intel OneAPI, do no longer require a license, they are freely available. The 2023.2 version has been installed on C&amp;CZ managed Ubuntu systems. When they are available, the module command</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sh" data-lang="sh"><span style="display:flex;"><span>module avail </span></span></code></pre></div><p>will list among others &ldquo;compiler/latest&rdquo;, so e.g. the Intel C (icc) and Fortran (ifort) compilers can be used after typing</p> https://cncz.science.ru.nl/en/cpk/1253/ Mon, 23 Sep 2019 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1253/ <p>Due to a configuration error, the NFS service on file server ‘peck’ refused to start. After fixing the error, the NFS service started up correctly.</p> https://cncz.science.ru.nl/en/howto/internet-studenten/ Fri, 06 Sep 2019 16:16:30 +0000 https://cncz.science.ru.nl/en/howto/internet-studenten/ <h2 id="students">students</h2> <h2 id="www-by-students">WWW by students</h2> <p>All student associations of the Science Faculty have their own WWW service. These are</p> <ul> <li><a href="http://www.thalia.nu/" target="_blank">Thalia</a> (Computer Science), <em><a href="mailto:www-thalia@science.ru.nl">1</a></em></li> <li><a href="https://www.desda.org/" target="_blank">Desda</a> (Mathematics), <em><a href="mailto:www-desda@science.ru.nl">2</a></em></li> <li><a href="https://www.vcmw-sigma.nl/" target="_blank">Sigma</a> (Chemistry), <em><a href="mailto:www-sigma@science.ru.nl">3</a></em></li> <li><a href="http://www.marie.science.ru.nl/" target="_blank">Marie Curie</a> (Physics), <em><a href="mailto:www-marie@science.ru.nl">4</a></em></li> <li><a href="http://www.beevee.science.ru.nl/" target="_blank">BeeVee</a> (Biology), <em><a href="mailto:www-beevee@science.ru.nl">5</a></em></li> <li><a href="http://www.leonardo.science.ru.nl/" target="_blank">Leonardo</a> (Sciences), <em><a href="mailto:www-leonardo@science.ru.nl">6</a></em></li> </ul> <p>Students who would like to start their own www service are advised to contact their association using the association’s website or by sending a mail to one of the mail addresses.</p> <p>If that doesn’t work out you can always visit C&amp;CZ and talk to one of the <a href="https://cncz.science.ru.nl/en/howto/systeemontwikkeling/">system administrators</a> to see if it is possible to start a new WWW service.</p> https://cncz.science.ru.nl/en/cpk/1252/ Tue, 03 Sep 2019 04:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1252/ <p>At the weekly reboot of vmhost ‘oscar’, it did not boot properly. The listed virtual machines are not running at the moment. We are working on it. Update: most probably, the problems where caused by full snapshots. After removal of the snapshots, the system booted properly.</p> https://cncz.science.ru.nl/en/cpk/1251/ Fri, 23 Aug 2019 15:10:00 +0200 https://cncz.science.ru.nl/en/cpk/1251/ <p>Due to an administrative error the mailboxen of a few hundreds of users became inaccessible. Mail couldn’t be read from or delivered to these mailboxes until this had been repaired. In this period the mailclient of 19 users tried to read the mailbox and thus possibly reported an error.</p> https://cncz.science.ru.nl/en/cpk/1250/ Mon, 01 Jul 2019 10:33:00 +0200 https://cncz.science.ru.nl/en/cpk/1250/ <p>A new receiving mailserver was introduced July 1. This server has the most recent version of Ubuntu and other software and settings that are more conforming to <a href="https://www.forumstandaardisatie.nl/open-standaarden/lijst/verplicht?f%5B0%5D=field_keywords%3A68" target="_blank">the directives (in Dutch)</a>. After the introduction, problems appeared with receiving mail from Microsoft Office 365 Exchange Online (mail.protection.outlook.com). An even bigger problem was that some accepted mails were not forwarded, but bounced to the sender. Because that problem couldn’t be fixed immediately, the newly introduced server has been shut down on July 2. At the end of August, C&amp;CZ will test the probable solution. If the test succeeds, the new incoming server will be put into production.</p> https://cncz.science.ru.nl/en/cpk/1249/ Wed, 22 May 2019 18:55:00 +0200 https://cncz.science.ru.nl/en/cpk/1249/ <p>Due to a faulty RU core network device, several service couldn’t be reached. This device is in a redundant setup. The <a href="https://www.ru.nl/ict-uk/" target="_blank">ISC</a> network department will start an investigation what exactly happened and how to prevent nuisance in the future.</p> https://cncz.science.ru.nl/en/cpk/1247/ Tue, 14 May 2019 16:13:00 +0200 https://cncz.science.ru.nl/en/cpk/1247/ <p>Yesterday afternoon a DNS error with science.ru.nl (due to the introduction of the secure DNSSEC) made science.ru.nl disappear from the internet for many users, when viewed from outside campus. In the evening this error has been corrected. Because of the caching of DNS responses, the last problems should disappear tonight. In the meantime one can use workarounds like rebooting the home router and/or pc, using a different network (mobile provider) or using rainloop.science.ru.nl instead of roundcube.science.ru.nl for webmail access.</p> https://cncz.science.ru.nl/en/cpk/1248/ Tue, 14 May 2019 15:28:00 +0200 https://cncz.science.ru.nl/en/cpk/1248/ <p>Because a web application used too much memory, all websites of this webserver had problems. After restarting the webserver, all websites could be reached again. We will make sure that web applications get memory limits, which will prevent this problem in the future.</p> https://cncz.science.ru.nl/en/cpk/1246/ Sat, 13 Apr 2019 05:15:00 +0200 https://cncz.science.ru.nl/en/cpk/1246/ <p>Due to a faulty network switch, approx 40 network connections in Huygens wing 4 were temporarily unavailable. The switch has been replaced.</p> https://cncz.science.ru.nl/en/cpk/1245/ Thu, 28 Mar 2019 07:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1245/ <p>This morning, the Matlab license server stopped, because yesterday an error had been made in the upgrade to version R2019a. After the error had been corrected, the license server was restarted, which resolved the problem.</p> https://cncz.science.ru.nl/en/cpk/1244/ Tue, 26 Mar 2019 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1244/ <p>The <a href="https://cncz.science.ru.nl/en/howto/kamerbreed/">poster printer</a> has to be repaired, but we can’t easily fix it. We hope to have the printer operational again in the near future. In the meantime you might use the <a href="http://www.ru.nl/facilitairbedrijf/winkels/copyshop/" target="_blank">RU copyshop</a>.</p> https://cncz.science.ru.nl/en/cpk/1243/ Sun, 10 Mar 2019 18:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1243/ <p>Due to a configuration fault in the Science radius server, many connections to Eduroam for users with a science account failed. It took two days of joint investigation by ISC and C&amp;CZ to resolve this problem.</p> https://cncz.science.ru.nl/en/howto/informatiebeveiliging/ Wed, 13 Feb 2019 15:38:54 +0000 Ben Polman https://cncz.science.ru.nl/en/howto/informatiebeveiliging/ <h2 id="information-security">Information security</h2> <p>European directives and Dutch law prohibit the storage of personal data (persoonsgegevens) outside the <a href="http://en.wikipedia.org/wiki/European_Economic_Area" target="_blank">European Economic Area</a> (EEA). Most of the well known cloud services are US based: Dropbox, all Google services such as Gmail and Google+, Hotmail, iCloud. This implies that (data collections containing) personal data may not be stored on these cloud services. In addition to the law, Radboud University has issued an internal security policy that prohibits the storage of data that is classified as critical (this includes all personal data) on any (public) cloud service, even those which are EEA based. However, RU considers SURFnet’s <a href="https://www.surfdrive.nl/en" target="_blank">SURFdrive</a>, <a href="https://www.surffilesender.nl/en" target="_blank">SURFfilesender</a> and <a href="https://www.edugroepen.nl/" target="_blank">edugroepen</a> as safe community cloud services for data exchange between RU employees, students, and external parties.</p> https://cncz.science.ru.nl/en/cpk/1242/ Mon, 10 Dec 2018 05:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1242/ <p>On December 10, the support for the security protocol TLS v1 and v1.1 was discontinued within the Radboud Eduroam wireless network. From that moment on, all wireless clients such as laptops, smartphones, tablets and the like must use TLS version 1.2 or higher.</p> <p>Unfortunately, the outcome of this change was not as expected. After the change, there were more clients with connection problems than the number of clients using TLSv1. After a period of testing and research, the ISC decided around 12.00 to reverse the change.</p> https://cncz.science.ru.nl/en/howto/proquota/ Tue, 27 Nov 2018 09:41:23 +0000 https://cncz.science.ru.nl/en/howto/proquota/ <h2 id="proquota-what-does-it-do-">ProQuota, what does it do ?</h2> <p>When you log in on a managed PC, your private settings (<em>Profile</em>) of Windows and the applications are copied from the network to your current PC. During the session, these copied settings on the PC are used and changed if necessary. At logout, the (altered) settings are copied back to the network. When you log in, at a later point in time, on a different managed PC, these settings are copied to the new PC and your own settings are available again. You may locate these settings under <code>C:\Documents and Settings\&lt;loginname&gt;</code>.</p> https://cncz.science.ru.nl/en/cpk/1240/ Tue, 11 Sep 2018 07:20:00 +0200 https://cncz.science.ru.nl/en/cpk/1240/ <p>A configuration change was automatically put into production Tuesday morning which had been prepared the previous day on Ubuntu 14_04 LTS, Ubuntu 16_04 LTS and Ubuntu 18_04 LTS in order to increase the level of security of SSH connections within FNWI. The change had the side effect of crashing the SSH daemon on Ubuntu 12_04 LTS and preventing older SSH clients from connecting at all. Users are encouraged to update their SSH clients so that we can <a href="https://wiki.mozilla.org/Security/Guidelines/OpenSSH" target="_blank">gradually increase the level of security</a> again.</p> https://cncz.science.ru.nl/en/cpk/1241/ Mon, 27 Aug 2018 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1241/ <p>One of the data-disks has a currupted file system. During the time slot menioned above, the server was unavailable. At the moment the server is running without the defective disk (milkun16). At the moment, we are trying to fix the disk.</p> https://cncz.science.ru.nl/en/cpk/1239/ Thu, 23 Aug 2018 01:41:00 +0200 https://cncz.science.ru.nl/en/cpk/1239/ <p>Last night the host for a number of vm’s (oscar) broke down. By using a replacement server (joule) this problem has been temporarily resolved. Tomorrow the machine will be repaired ans we will determine when the machines will be switched back.</p> https://cncz.science.ru.nl/en/cpk/1237/ Mon, 20 Aug 2018 15:32:00 +0200 https://cncz.science.ru.nl/en/cpk/1237/ <p>While testing a possible update to the IMAP mailserver, an error made the mailserver unavailable for ca. fifteen minutes.</p> https://cncz.science.ru.nl/en/cpk/1238/ Thu, 09 Aug 2018 13:05:00 +0200 https://cncz.science.ru.nl/en/cpk/1238/ <p>The new version of the IMAP mailserver software contained a bug in the handling of SSL connections, that led to connections being dropped and depending on the mailclient led to a mailserver that could hardly be used. This morning a patch for this bug has been installed.</p> https://cncz.science.ru.nl/en/cpk/1236/ Thu, 09 Aug 2018 13:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1236/ <p>The IMAP mailserver post.science.ru.nl is being replaced by a new server. Therefore connections to the IMAP mailserver post.science.ru.nl will not be possible during ca. 5 minutes.</p> https://cncz.science.ru.nl/en/cpk/1235/ Fri, 03 Aug 2018 12:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1235/ <p>Three of our main fileservers need firmware updates, this requires the servers to be rebooted several times. The shares will be unavailable for at most one hour.</p> <p>Affected network disks:</p> <p><code>45t acfiles acfiles2 acl-ru-nl$ acs4 aerochem afstudeertest afstudeerwerk akolkmandata albert amsbackup amscommon</code> <code>animal arb astropresentie avd bbb-priv beevee betadidactiek b-fac-backup bioalg bioexamencie bioexamencierw bioniccell</code> <code>bio-orgchem birds bko boltje botany-general carisma carta ccs4 ccz cczhelpdesk cczsecr cdalgemeen cdbiow cdisis cdoii</code> <code>cdomw cdwinst celbio1 celbio2 celbio2 celbio3 ces2017 chemprac chemstaff cncz coastoffon cudotest cursus cursusdossiers</code> <code>dbiwwr-ro dbiwwr-rw dcnadmin desda diafragma docent docenten ds ecogen ecologie ehef1 ehef2 ehef3 ehef4 embdata epsylon</code> <code>erhvedata evsf2data10 evsf2data15 evsf2data16 evsf2data17 evsf2data18 evsf2data19 evsf2data7 evsf2data8 evsf2data9</code> <code>evsf2schijf1 exoarchief femtospin fsr geminstr geminstr2 gi1 gi2 gi3 giphouse gipsy gissig global global global</code> <code>gmi goudsmit1 goudsmit2 goudsmit3 goudsmit4 goudsmitoldusers grafting hfml-backup hfml-backup2 hfml-backup3 hfml-backup4</code> <code>hfml-backup-inst hfml-data hfml-engineering hfml-secr highres honours huckgroup hybrids icis icisafstudeer icisbureau</code> <code>iciscop icislaquso icissec icisst ifl ifl-d1 IJSO imappdir imappsecr immbureau immstaff impuls introcie invbio iris isis</code> <code>isptinspec itt iwwr1 janvanhest kaartenbak kangoeroe khaj kolkteaching labservant lambiek leonardo licenses liquidhelium</code> <code>liquids mailmanincludes marcurkasco master mathematica mathsolcie mbaudit1 mbaudit2 mbaudit3 mbaudit4 mbaudit5 mbbioel</code> <code>mbbioel2 mbcortex mbonderwijs mbread mbscon mbsl mbwrite mercator mestrelab mi1 mi2 mi3 micord micro-bulk1 micro-bulk2</code> <code>micro-labmembers mlf90 mlf90grp mlf90linac mlfalgemeen mlfsec molbiol molchem molchem2 molchem3 molneuro molphtec mol-secr</code> <code>morph mpcoldmol2 mpcoldmollab mpcoldsecr mppstaf multimedia mwstudiereis neuroinf neuroinf2 neuropi nmr500data nmrspectra</code> <code>olcbiocie olcbiow olccudo olcii-archief olympus onderwijskwalificatiedossiers onlyme ons orgdier orgdiermac owc owc1 parp</code> <code>pcb plantkunde-hgl poliepC poliepD pracnat practica project1mpp puc randomwalkmodel rotax ruversatest secrmolbiol secrthch</code> <code>share sigma sigmacies smol snn snn2 snn3 snn4 sofie software soheto solids sos spectra spectra-rw spibdossier spm spmdata1</code> <code>spmdata3 spmdata4 spmdata5 spmdata6 spmdata7 spmmagstm spmnanolab spmstaff ssi ssiguest staff-hfml stroom studiereis2013</code> <code>synorgchem tece teceleiding template-ru-nl$ template-ru-nl$ template-ru-nl$ tf2devices thalia thaliacies thchem tracegas</code> <code>tracegastemp tzacad ucm unl vcbio_prive vergader vsc vsc1 vsc10 vsc11 vsc12 vsc13 vsc14 vsc15 vsc16 vsc2 vsc3 vsc4 vsc5</code> <code>vsc6 vsc7 vsc8 vsc9 vscadmin vscxray wallpaper wikis wiskalg wiskunde wiskundetoernooi wkru zeegras</code></p> https://cncz.science.ru.nl/en/cpk/1234/ Mon, 02 Jul 2018 22:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1234/ <p>Monday evening July 2, there will be maintenance on central RU network equipment. From 22:00 hours, central RU applications and network will not be available most of the time. For telephones no disturbance is expected. For the C&amp;CZ services there is a possibility of disruptions: no Internet connection for some time. Please think which processes depend on connectivity to RU central services and prepare for this possible outage if necessary. Future maintenance windows can be seen on the <a href="http://www.ru.nl/systeem-meldingen/" target="_blank">ISC website</a>.</p> https://cncz.science.ru.nl/en/howto/email-sieve/ Wed, 27 Jun 2018 05:42:46 +0000 https://cncz.science.ru.nl/en/howto/email-sieve/ <h2 id="sieve">Sieve</h2> <p>If one wants incoming mail to be sorted into folders automatically or to be filtered in some special way, one can use “Sieve” if one has the IMAP-server <code>post.science.ru.nl</code> as incoming mailserver.<br> To put the sieve script on the mail server and activate it, use a mail program which supports sieve. The filter settings can be managed quite easily in <a href="http://roundcube.science.ru.nl" target="_blank">Roundcube webmail</a> with Settings -&gt; Filters. It is also possible with e.g. KMail or Thunderbird with the <a href="http://sieve.mozdev.org/" target="_blank">sieve addon</a>.<br> On lilo4 you get with the command <code>sieve-connect postvak.science.ru.nl</code> an interactive commandline where you can use the command <em>put</em> to upload a sieve script.<br> The Sieve language is described in <a href="http://www.ietf.org/rfc/rfc3028.txt?number=3028" target="_blank">RFC3028</a>.</p> https://cncz.science.ru.nl/en/cpk/1233/ Sat, 09 Jun 2018 08:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1233/ <p>Saturday june 9th from 8:00h until approximately 12:00h analog telephone communications via AudioCodes will not be possible. At this time the existing equipment used in the Huygens- and surrounding buildings will be moved and reconnected. Only traditional analog equipment such as DECT phones and such are connected to the AudioCodes. The green (emergency) phones are not connected to these AudioCodes but to the emergency telephone exchange.</p> <p>The emergency telephone exchange wil go down for ten minutes during the afternoon due to an intteruption of the power supply. The bulk (if not all) of the emergency phones and elevators are connected to this emergency telephone exchange and will therefore not be operational at that time.</p> https://cncz.science.ru.nl/en/cpk/1231/ Sat, 09 Jun 2018 08:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1231/ <p>Saturday June 9th from 8:00h until approximately 12:00h analog telephone communications via AudioCodes will not be possible at FNWI. At that time the existing equipment used in the Huygens and surrounding buildings will be moved and reconnected. Only traditional analog equipment such as DECT phones are connected to the AudioCodes. The green emergency phones are not connected to these AudioCodes but to the emergency telephone exchange.</p> <p>The emergency telephone exchange wil go down for ten minutes during the afternoon of that day due to an interruption of the power supply. The bulk (if not all) of the emergency phones and elevators are connected to this emergency telephone exchange and will therefore not be operational during those ten minutes.</p> https://cncz.science.ru.nl/en/cpk/1232/ Sat, 09 Jun 2018 07:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1232/ <p>Last week, the DHCP infrastructure at FNWI was changed, in order to move from old to new servers. An error was made when we had to move back because DHCP did not run well on a virtual interface. When the first complaints came in this morning, we quickly found and repaired the error. We try to avoid further service disruptions while improving the DHCP service.</p> https://cncz.science.ru.nl/en/cpk/1230/ Tue, 22 May 2018 14:24:00 +0200 https://cncz.science.ru.nl/en/cpk/1230/ <p>Last week, the DNS infrastructure at FNWI was changed, in order to move from old to new servers and to prepare for the use of DNSSEC. A workaround for the internal/external view of ru.nl had an unwanted side effect. This made the FNWI DNS servers lose the info about ru.nl. We had to resort to a different workaround to fix this. We try to avoid further service disruptions while improving the DNS services.</p> https://cncz.science.ru.nl/en/cpk/1229/ Sat, 17 Mar 2018 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1229/ <p>Backups were incomplete since March 17th. The tape robot couldn’t be used because a tapedrive failed, probably due to dry weather conditions. Therefore holding disks filled up. Only the backup of Tuesday upon Wednesday is possibly complete, but we lack backups of March 21st and 22nd, which is caused by a filesystem inconsistency of the holding disks, repairs already take two days. We’re trying hard to make backups this weekend, but please be cautious with your files, since restores of recently changed files might fail.</p> https://cncz.science.ru.nl/en/cpk/1228/ Tue, 06 Mar 2018 12:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1228/ <p>During the process of restoring the homedirectory of the affected user of the ransomware, the samba server was restarted, however it stopped, but not start. This was noticed only 45 minutes later. We have ajusted our monitoring to help us notice this more quickly.</p> https://cncz.science.ru.nl/en/cpk/1227/ Tue, 06 Mar 2018 08:40:00 +0100 https://cncz.science.ru.nl/en/cpk/1227/ <p>Due to an accidental opening of an e-mail attachment (called Resume.doc), which contained a macro-based ransomware, all the files and directories on the mentioned shares were either removed or encrypted and a message was left on the infected computer to contact a certain URL to get the files back. The files were restored from backup and the PC wiped clean and re-installed. NB. The f-secure software did not recognise this malware yet at the time.</p> https://cncz.science.ru.nl/en/cpk/1226/ Thu, 08 Feb 2018 02:39:00 +0100 https://cncz.science.ru.nl/en/cpk/1226/ <p>Yesterday morning, we got an alarm because the smtp service did not work properly. The cause was found to be that from various PCs from, among other countries, China, connections were built up with one of the smtp servers, without actually sending an e-mail, as a result of which all these connections were left hanging. If the number of standing connections became too high, the server became unusable for others. This service has to be be accessible from the Internet, because of <a href="https://cncz.science.ru.nl/en/howto/email#outgoing-email">authenticated SMTP</a>. After a few PCs had been blocked, at 15:39 <a href="https://www.fail2ban.org" target="_blank">Fail2ban</a> was turned on, that is also used to protect other services accessible from the Internet, such as <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">mailservers</a>, <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">Linux loginservers</a>, <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">WWW-servers</a> and <a href="https://cncz.science.ru.nl/en/howto/hardware-servers/">GitLab servers</a>.</p> https://cncz.science.ru.nl/en/cpk/1225/ Mon, 22 Jan 2018 08:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1225/ <p>This morning the fileserver reported a disc problem. To diagnose this, we have to upgrade the firmware, which makes downtime necessary. We planned this for next Monday morning because of the Next Business Day support contract. Sorry for any inconvenience.</p> <p>Affected disks:</p> <p><code>acfiles aerochem amsbackup amscommon animal astropresentie avance500</code> <code>avance600 beevee b-fac-backup bioniccell bio-orgchem boltje carisma</code> <code>celbio1 celbio2 chemprac cncz coastoffon csgi-archief desda ds ehef1</code> <code>ehef2 ehef3 ehef4 femtospin geminstr2 giphouse gissig global gmi goudsmit1</code> <code>hfml-backup hfml-backup2 hfml-backup3 hfml-backup-inst highres imappdir</code> <code>imappsecr impuls introcie isis janvanhest kaartenbak kangoeroe khaj</code> <code>linova500 linova800 marcurkasco mathsolcie mbaudit1 mbscon mbsl molbiol</code> <code>mwstudiereis neuroinf neuroinf2 nfstest olympus puc randomwalkmodel</code> <code>ruversatest secres2 secrmolbiol sigma sigmacies spectra spectra-rw</code> <code>spm spmdata3 spmdata4 spmdata5 spmdata6 spmdata7 spmmagstm spmnanolab</code> <code>spmstaff ssi ssiguest staff-hfml stroom thalia thaliacies ucm vsc vsc1</code> <code>vsc10 vsc11 vsc12 vsc13 vsc14 vsc15 vsc2 vsc3 vsc4 vsc5 vsc6 vsc7 vsc8</code> <code>vsc9 vscadmin wiskalg wiskunde wkru</code></p> https://cncz.science.ru.nl/en/cpk/1224/ Tue, 16 Jan 2018 23:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1224/ <p>Because of a planned upgrade, gitlab.science.ru.nl and gitlab.pep.cs.ru.nl will not be available. See also: <a href="https://about.gitlab.com/2018/01/12/gitlab-critical-release-preannouncement/" target="_blank">1</a></p> https://cncz.science.ru.nl/en/howto/install-share/ Wed, 10 Jan 2018 15:14:49 +0000 https://cncz.science.ru.nl/en/howto/install-share/ <p>Most licensed software that can be freely used by students and staff of the Science faculty can be found in the <code>install</code> network share.</p> <p>You can connect the install share in MS Windows using the path:</p> <pre tabindex="0"><code>\\install-srv.science.ru.nl\install </code></pre><div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice info" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#info-notice"></use></svg></span>Info</p> https://cncz.science.ru.nl/en/cpk/1223/ Mon, 11 Dec 2017 00:59:00 +0100 https://cncz.science.ru.nl/en/cpk/1223/ <p>The new certificate for the IMAP mailserver hadn’t been put into place correctly. Sorry for any inconvenience.</p> https://cncz.science.ru.nl/en/cpk/1222/ Sat, 02 Dec 2017 16:20:00 +0100 https://cncz.science.ru.nl/en/cpk/1222/ <p>We placed an incorrectly packaged version on the install drive. After users reported this, the ISC has created a new package and we have replaced it.</p> https://cncz.science.ru.nl/en/cpk/1220/ Mon, 27 Nov 2017 23:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1220/ <p>New firmware will be loaded into the Heyendaal-East distribution router. During this period the wired and wireless network will be unavailable for approx. 30 minutes.</p> https://cncz.science.ru.nl/en/cpk/1221/ Wed, 22 Nov 2017 07:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1221/ <p>After an update of the samba software, it appears that the smbd service didn’t start up again. The problem was resolved by either rebooting (home1) or manually starting smbd (home2).</p> https://cncz.science.ru.nl/en/cpk/1219/ Tue, 14 Nov 2017 20:50:00 +0100 https://cncz.science.ru.nl/en/cpk/1219/ <p>Currently the hardware has problems, causing the machine to randomly turn off and on. We are in the process of resolving this with our supplier.</p> <p>The problem doesn’t appear to be hardware related, but a problem with the configuration of the OS, which we changed and it seems to be stable now.</p> https://cncz.science.ru.nl/en/cpk/1218/ Sun, 01 Oct 2017 06:28:00 +0200 https://cncz.science.ru.nl/en/cpk/1218/ <p>Due to a misinterpretation of the correct crontab syntax, the homeservers were rebooted daily since the beginning of this month, instead of, as we intended, once a Month on the first Monday.</p> https://cncz.science.ru.nl/en/cpk/1215/ Sun, 01 Oct 2017 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1215/ <p>Multiple Ubuntu 16.04 users are unable to access their homedirectories on machines that have been rebooted on monday morning. Keeping system clocks more in sync seems to have helped somewhat, but no definite solution has been found yet. Therefore we decided to reboot the homeservers only the *first* Monday of each month. In the meantime we still hope for a real solution.</p> https://cncz.science.ru.nl/en/cpk/1217/ Wed, 27 Sep 2017 15:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1217/ <p>The server of DHZ had a problem with the hardware, the hardware was fixed on 2017-09-29, the website DHZ could be restored more quickly on a different server, limiting the outage to a few hours.</p> https://cncz.science.ru.nl/en/cpk/1216/ Fri, 22 Sep 2017 07:20:00 +0200 https://cncz.science.ru.nl/en/cpk/1216/ <p>This morning, the homeservers were automatically upgraded with normal updates, after which the windows file servicewas not restarted. The problem was resolved by restarting the machines.</p> https://cncz.science.ru.nl/en/cpk/1214/ Mon, 14 Aug 2017 06:31:00 +0200 https://cncz.science.ru.nl/en/cpk/1214/ <p>For yet unknown reasons the OpenVPN service did not start at the Monday morning reboot. We started the service manually.</p> https://cncz.science.ru.nl/en/cpk/1213/ Thu, 10 Aug 2017 08:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1213/ <p>The server of DHZ is having problems, while we are solving this with Dell support, all changes can be handled via us (tel: 53535) or postmaster@science.ru.nl</p> https://cncz.science.ru.nl/en/cpk/1212/ Sat, 22 Jul 2017 11:38:00 +0200 https://cncz.science.ru.nl/en/cpk/1212/ <p>Saturday July 22 at 11:37, there was a power outage in the Huygens building, also for all equipment connected to emergency power. The power outage lasted long enough to leave even devices and rooms with a UPS battery backup without power. This included all network equipment (routers, switches, wireless access points) and all servers in the C&amp;CZ large server room.</p> <p>When power returned from 14:08, several devices were defective:</p> <p>- Half of the fully redundant FNWI router was defective. External companies in the UBC are not doubly connected to their provider, so they had no connectivity until Monday, when their connectivity was switched. Since Monday afternoon, the FNWI router has been repaired, so is redundant again.</p> https://cncz.science.ru.nl/en/cpk/1211/ Fri, 30 Jun 2017 09:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1211/ <p>Because of a planned upgrade, gitlab.science.ru.nl and gitlab.pep.cs.ru.nl will not be available.</p> https://cncz.science.ru.nl/en/cpk/1210/ Mon, 26 Jun 2017 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1210/ <p>LibreOffice and other software suites using Java (jvm) internally are affected by the Ubuntu 14.04 kernel update patching the Stack Clash. It seems that Linux kernel developers, Ubuntu developers and JVM developers are working hard world-wide in finding a proper solution. Work-around ‘JAVA_TOOL_OPTIONS=-Xss1280k libreoffice’. Ubunti released a fix.</p> https://cncz.science.ru.nl/en/cpk/1209/ Tue, 13 Jun 2017 10:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1209/ <p>Apologies.</p> <p>Affected disks:</p> <p><code>acfiles beevee bioniccell bio-orgchem celbio1 celbio2</code> <code>chemprac csgi-archief csg-projecten csg-staf desda ds ehef1</code> <code>ehef2 ehef3 femtospin geminstr2 giphouse gissig gmi hfml-backup hfml-backup2 hfml-backup-inst highres impuls</code> <code>introcie isis janvanhest kaartenbak kangoeroe mathsolcie microbiology microbiology2</code> <code>milkun2 milkun2RenD milkun3 milkun5 milkun6 milkun7 milkun7rw</code> <code>mwstudiereis neuroinf neuroinf2 olympus puc randomwalkmodel secres2 sigma sigmacies spectra spectra-rw</code> <code>spm spmdata3 spmdata4 spmdata5 spmdata6 spmdata7 spmstaff ssi staff-hfml stroom thalia ucm vsc</code> <code>vsc1 vsc10 vsc11 vsc12 vsc13 vsc14 vsc15 vsc2 vsc3 vsc4 vsc5 vsc6 vsc7 vsc8 vsc9 vscadmin wiskalg wiskunde wkru</code></p> https://cncz.science.ru.nl/en/cpk/1208/ Mon, 29 May 2017 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1208/ <p>Sunday evening, one of the archive disks failed. The data on it was lost, as it wasn’t in a redundant setup. After the weekly reboot, the server hung on this disk being broken. It took us a while to get the server up again.</p> https://cncz.science.ru.nl/en/cpk/1207/ Mon, 22 May 2017 22:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1207/ <p>Due to maintenance the wifi network on campus (Eduroam) will not be available for twenty minutes on Monday night between 10 pm and 8 pm. During those twenty minutes your mobile device appears to be connected with the wifi network but you will notice there is no internet connection. After this interruption the connection will be established automatically. During the maintenance period additional short interruptions may occur.</p> <p>Monday evening the wifinetwork will be placed behind the new firewalls of the Radboud University. When this is done, users of Eduroam on our campus are no longer directly reachable from the Internet. We are doing this to protect wifi users against viruses like the Wannacry virus that was used for the worldwide ransomware attack last week.</p> https://cncz.science.ru.nl/en/cpk/1206/ Thu, 11 May 2017 09:05:00 +0200 https://cncz.science.ru.nl/en/cpk/1206/ <p>Switch es7-huyg-04-070 of a server rack became powerless after maintenance in the computer room of C&amp;CZ. Restoring power and powering up the switch resolved all problems.</p> https://cncz.science.ru.nl/en/cpk/1204/ Mon, 08 May 2017 23:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1204/ <p>Between 23:30 and 00:30 the fixed phones will be out of service for about half an hour. Between 00.30 and 02.00 hours, a few minutes of internet interruption will take place. At those moments, RU services can not be accessed from outside the campus.</p> https://cncz.science.ru.nl/en/cpk/1205/ Mon, 01 May 2017 07:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1205/ <p>The central network switch in the serverroom at the Faculty of Science will be restarted in connection with some software maintenance. Many servers and services are not available for approx 20 minutes.</p> https://cncz.science.ru.nl/en/cpk/1203/ Mon, 24 Apr 2017 23:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1203/ <p>The RU wifi network (eduroam) will be unavailable on Monday evening April 24 between 23:00 and midnight for half an hour due to maintenance work.</p> https://cncz.science.ru.nl/en/cpk/1201/ Wed, 12 Apr 2017 07:22:00 +0200 https://cncz.science.ru.nl/en/cpk/1201/ <p>An unattended update of the virtual hosting software (libvirt) triggered a netwerk stack restart. This made the virtual machines unavailable on the network. After a reboot of the virtual hosts (vos and wolf), the virtual machines were available again. Action was not taken immediately, because the alarm mails didn’t reach us, because the mailservers could not be reached. To improve this situation, steps are taken to route the alarms also via alternative channels (sms, whatsapp, signal, etc). Also the network configuration of the virtual machines has been changed, this will hopefully make it less vulnerable to these updates.</p> https://cncz.science.ru.nl/en/cpk/1202/ Mon, 03 Apr 2017 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1202/ <p>The printer has to be repaired, but the engineer can’t easily fix it. We hope to have the printer operational again in the near future. A new one with service contract has been ordered, in order to make the poster service more reliable. In the meantime you might use the <a href="http://www.ru.nl/facilitairbedrijf/winkels/copyshop/" target="_blank">RU copyshop</a>.</p> https://cncz.science.ru.nl/en/cpk/1200/ Sun, 12 Mar 2017 22:17:00 +0100 https://cncz.science.ru.nl/en/cpk/1200/ <p>Coma00 serves astro0, astro1, astro3 and astro4 volumes, the server crashed on a kernel-BUG, Monday morning the server was restarted and service resumed normally.</p> https://cncz.science.ru.nl/en/cpk/1199/ Mon, 06 Mar 2017 22:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1199/ <p>Monday evening March 6, there will be maintenance on RU network equipment. On March 7 between ca. 01:00-01:30 no network traffic will be possible at the Faculty of Science on the wired and wireless networks. From 23:00 until March 7 02:00 there will be a period where no traffic between RU and Internet is possible. Please think which processes depend on network connectivity and prepare for this outage if necessary.</p> https://cncz.science.ru.nl/en/howto/netwerk-mutaties/ Fri, 03 Mar 2017 10:51:40 +0000 https://cncz.science.ru.nl/en/howto/netwerk-mutaties/ <p><code>NOT_YET_TRANSLATED</code></p> https://cncz.science.ru.nl/en/cpk/1198/ Tue, 28 Feb 2017 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1198/ <p>The Radius service didn’t start after the regular reboot, restarting the Radius service solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1197/ Wed, 22 Feb 2017 15:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1197/ <p>Update of Strongswan server software with extra capabilities</p> https://cncz.science.ru.nl/en/cpk/1196/ Mon, 06 Feb 2017 09:39:00 +0100 https://cncz.science.ru.nl/en/cpk/1196/ <p>Monday morning several employees of FNWI were affected by a fault within the RU Exchange design whereby they could not send their mail to recipients outside of the RU Exchange (i.e. @science.ru.nl, @cs.ru.nl or elsewhere). ISC had added two additional servers to the RU Exchange service the week before, which were not yet allowed to drop their outgoing mail on designated servers for that purpose. Not all FNWI employees using RU Exchange were affected, however, since four out of six servers were still functioning properly and employees using e.g. Thunderbird use servers outside of the RU Exchange for sending their mails.</p> https://cncz.science.ru.nl/en/cpk/1195/ Mon, 30 Jan 2017 07:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1195/ <p>The central network switch in the serverroom at the Faculty of Science will be restarted in connection with an software upgrade. Many servers and services are not available for approx 20 minutes.</p> https://cncz.science.ru.nl/en/cpk/1193/ Tue, 24 Jan 2017 10:50:00 +0100 https://cncz.science.ru.nl/en/cpk/1193/ <p>In Huygens wing 8 a network switchmodule crashed. Several users lost their connection to the data and telephone network for some time. The switchmodule has been replaced.</p> https://cncz.science.ru.nl/en/cpk/1194/ Tue, 13 Dec 2016 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1194/ <p>The new RU Fortigate firewall, that is in place since December 13, manages fragmented IP packets inconsistently. Depending on the VPN client and its settings, this can cause problems for VPN users. The <a href="http://www.ru.nl/isc" target="_blank">ISC</a> found a solution for the cenral RU VPN in changing the configuration of the RU VPN as of 2016-12-19 15:50 hours. While waiting for the final solution, a temporary workaround has been used in the Fortigate firewall on April 19, which makes the problem disappear.</p> https://cncz.science.ru.nl/en/cpk/1192/ Wed, 07 Dec 2016 21:15:00 +0100 https://cncz.science.ru.nl/en/cpk/1192/ <p>In Huygens wing 5 a network switchmodule crashed. Several users lost their connection to the data and telephone network for some time. The switchmodule has been replaced.</p> https://cncz.science.ru.nl/en/cpk/1190/ Mon, 05 Dec 2016 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1190/ <p>Due to maintenance of the indoor cellphone equipment, this equipment will be out of service for one hour max on Monday December 5th.</p> https://cncz.science.ru.nl/en/cpk/1191/ Fri, 02 Dec 2016 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1191/ <p>The printer has to be repaired. Spare parts have been ordered. We hope to have the printer operational again this month.</p> https://cncz.science.ru.nl/en/cpk/1189/ Mon, 14 Nov 2016 20:40:00 +0100 https://cncz.science.ru.nl/en/cpk/1189/ <p>Due to a failed power distribution unit (PDU) a network switch powered down. As a result of that the mentioned machines lost their network connectivity. After reconnecting the switch to a different PDU, the machines were reachable again.</p> https://cncz.science.ru.nl/en/howto/medewerkers-latexbrief/ Wed, 21 Sep 2016 08:20:41 +0000 https://cncz.science.ru.nl/en/howto/medewerkers-latexbrief/ <h2 id="ru-corporate-identity-information">RU Corporate Identity Information</h2> <p>Starting September 1, 2004, a new corporate identity has been introduced in which the name and logo of the university changed, but also the layout of all printed material. For MS-Word, templates and manuals have been centrally developed. Information can be found <a href="https://www.ru.nl/en/services/campus-facilities-buildings/communication-and-promotion/design/corporate-identity" target="_blank">elsewhere</a>. For LaTeX C&amp;CZ developed a new letter layout.</p> <h3 id="ru-letter-layout-for-latex">RU letter layout for LaTeX</h3> <p>The new version supports an English and a colored version of the logo.</p> https://cncz.science.ru.nl/en/cpk/1188/ Thu, 15 Sep 2016 00:27:00 +0200 https://cncz.science.ru.nl/en/cpk/1188/ <p>A few servers powered down due to a failed power distribution unit (PDU), because they were not redundantly connected. After switching to a different PDU, the servers were running again. The redundant connections of important servers will be checked.</p> https://cncz.science.ru.nl/en/cpk/1187/ Tue, 13 Sep 2016 01:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1187/ <p>After the maintenance activities as mentioned below, a large number of workplaces of Molecular Biology at RIMLS did not receive an ip-address. After a reset by ISC of a table in the central RU-firewall, the problem was solved.</p> https://cncz.science.ru.nl/en/cpk/1186/ Mon, 12 Sep 2016 23:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1186/ <p>In the night of 12 to 13 September, maintenance on the Radboud University network will be performed from 11pm to 03am. Several service interruptions may occur, like internet access via SURFnet, mail via Exchange, Bass, Osiris and Blackboard. We advise to check which systems might be affected by this and if possible shift network activity to a different time slot. You also might think about systems with alerts via Internet.</p> https://cncz.science.ru.nl/en/cpk/1184/ Mon, 12 Sep 2016 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1184/ <p>After the Monday morning reboot, the Samba network drive service was not running on all Ubuntu 12.04 servers. Reinitializing all Samba configuration files solved the problem. Problems fixed at 08:30 for home servers, 10:25 departmental printers, 12:45 departmental server.</p> https://cncz.science.ru.nl/en/cpk/1185/ Mon, 25 Jul 2016 16:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1185/ <p>Due to maintenance, the digital exam environment will not be available for several hours.</p> https://cncz.science.ru.nl/en/cpk/1183/ Tue, 05 Jul 2016 06:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1183/ <p>Three cluster nodes powered down due to a failed PDU. After replacing the PDU, the nodes came up normally.</p> https://cncz.science.ru.nl/en/cpk/1182/ Fri, 17 Jun 2016 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1182/ <p>When starting Atlas.ti, you get the message that the license expires in a few days or already has expired. There is, however, a three-weeks grace period during which the users will see a warning message but can still use the program normally. The vendor has promised to send the license June 24, and to send it earlier next years. The new license key can be <a href="https://cncz.science.ru.nl/en/howto/contact/">requested from C&amp;CZ</a>.</p> https://cncz.science.ru.nl/en/howto/archive/subversion/ Wed, 01 Jun 2016 07:34:28 +0000 Simon Oosthoek https://cncz.science.ru.nl/en/howto/archive/subversion/ <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="warning-notice" viewBox="0 0 576 512" preserveAspectRatio="xMidYMid meet"><path d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z"/></symbol><symbol id="info-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice info" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#info-notice"></use></svg></span>Info</p> https://cncz.science.ru.nl/en/cpk/1181/ Mon, 30 May 2016 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1181/ <p>Due to a problem with a new license the license server didn’t go down for the weekly reboot. When this came to attention, the server was rebooted and the problem was solved.</p> <p><code>Altera Ansys Accelrys Genesys Hdlworks Idapro</code> <code>Xilinx IntelCompiler Ingr Maple Mathematica Matlab MentorGraphics Mestrelab</code> <code>Topspin Orcad Originlab StateaseRlm</code></p> https://cncz.science.ru.nl/en/cpk/1176/ Wed, 25 May 2016 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1176/ <p>Matlab (until 08:45), Origin (09:00), Mestrenova (9:20), Mathematica (9:30) and Orcad (11:20) service not started. Cause yet unknown.</p> https://cncz.science.ru.nl/en/cpk/1180/ Wed, 18 May 2016 07:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1180/ <p>The Science <a href="https://cncz.science.ru.nl/en/howto/vpn/">VPNs</a> will be down for short maintenance, in order to switch the IP ranges. After this maintenance, there will be enough IP numbers available for the growing use of the new VPN. The old VPN has not been switched off yet, because <a href="https://bugs.launchpad.net/bugs/1570352" target="_blank">Ubuntu 16.04 still has problems with the new VPN</a>.</p> https://cncz.science.ru.nl/en/cpk/1179/ Mon, 02 May 2016 21:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1179/ <p>Because of a <a href="https://about.gitlab.com/2016/04/28/gitlab-major-security-update-for-cve-2016-4340/" target="_blank">major security update</a> that will be released tonight, <a href="https://cncz.science.ru.nl/en/howto/gitlab/">GitLab</a> will not be available. We will update GitLab on Tuesday morning. After that, gitlab.science.ru.nl will be available again.</p> https://cncz.science.ru.nl/en/cpk/1178/ Fri, 29 Apr 2016 14:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1178/ <p>A backup file, dated “Fri Apr 29 05:07:04 CEST 2016” has accidentially been restored on our production <a href="https://cncz.science.ru.nl/en/howto/gitlab/">GitLab server</a>, where it should have happened on a test server. This caused all repositories, wiki’s, issues etc. to be reset to the state of today 5.07 AM. Commits pushed between 5 am and 2:30 PM should be pushed again. Sorry for the inconvenience.</p> https://cncz.science.ru.nl/en/cpk/1177/ Mon, 25 Apr 2016 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1177/ <p>The server comas1 did not start, probably due to some timing problems between the RAID array and OS. Solution: reboot - hardware reset.</p> https://cncz.science.ru.nl/en/cpk/1175/ Tue, 19 Apr 2016 17:37:00 +0200 https://cncz.science.ru.nl/en/cpk/1175/ <p>Yesterday the RU outgoing mailserver smtpout3.ru.nl got listed on the <a href="http://dnsbl.sorbs.net/" target="_blank">SORBS blacklist</a> of confirmed senders of spam and phishing mails. The reason probably is that recently many students fell for phishing mails, which made their username and password known to Internet criminals. These criminals use that to send spam and phishing mails. Because also the Science mailservers use that blacklist, we did not accept mail from the RU mailserver anymore. The senders received an error message: “Your message wasn’t delivered due to a permission or security issue.” We solved this for our Science users by putting the RU mailserver on our own whitelist.</p> https://cncz.science.ru.nl/en/cpk/1174/ Tue, 29 Mar 2016 10:43:00 +0200 https://cncz.science.ru.nl/en/cpk/1174/ <p>Several services were inaccessible due to power loss of a rack switch caused by a failing PDU (power distribution unit). The PDU has been temporarily replaced.</p> <p>Sevices include:</p> <p>home directories, printing, authentication services, licenses, vpn, websites, databases, mailman and dns resolvers.</p> https://cncz.science.ru.nl/en/cpk/1173/ Thu, 24 Mar 2016 12:19:00 +0100 https://cncz.science.ru.nl/en/cpk/1173/ <p>Memory modules and or the motherboard of webserver ‘oehoe’ will be replaced. The mentioned web sites will not be available for a while.</p> <p>Affected web services:</p> <p>aerochem,akn,aqua,bgard,boekingen,bomen,cac,cafe,celbi,docenten,exo,filosofie,hfml iconic,ifl,irmacrash,itp2011,iwwr-boookings,kanboard,kndv,labservant,math,mbfys,mbp,mealab, nieuwescheikunde,nlt,pilab,printeger,probiomed,puff,pz,qpl,quantumcs,ra,refbase,rrl, scheikundeolympiade,siam,sigma-lustrum,smartech4health,sws,theorphys,tk,toernooi,tredd, trooster,vsc,w4kangoeroe,wortel,zwaartekrachtsgolven</p> https://cncz.science.ru.nl/en/cpk/1172/ Mon, 21 Mar 2016 14:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1172/ <p>A defective memory module caused spontaneous reboots. Since two modules where taken out, these reboots have not occurred anymore. Additional down time will be needed to resolve the problem.</p> <p>Affected services:</p> <p>aerochem,akn,aqua,bgard,boekingen,bomen,cac,cafe,celbi,docenten,exo,filosofie,hfml iconic,ifl,irmacrash,itp2011,iwwr-boookings,kanboard,kndv,labservant,math,mbfys,mbp,mealab, nieuwescheikunde,nlt,pilab,printeger,probiomed,puff,pz,qpl,quantumcs,ra,refbase,rrl, scheikundeolympiade,siam,sigma-lustrum,smartech4health,sws,theorphys,tk,toernooi,tredd, trooster,vsc,w4kangoeroe,wortel,zwaartekrachtsgolven</p> https://cncz.science.ru.nl/en/cpk/1171/ Wed, 16 Mar 2016 21:40:00 +0100 https://cncz.science.ru.nl/en/cpk/1171/ <p>Because of an upgrade of gitlab to version 8.5.7, the <a href="https://cncz.science.ru.nl/en/howto/gitlab/">GitLab</a> service was offline for a while.</p> https://cncz.science.ru.nl/en/cpk/1169/ Mon, 07 Mar 2016 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1169/ <p>At reboot time some file system (/opt) was not recognized, resulting in a kernel panic. Solutio: Reboot</p> https://cncz.science.ru.nl/en/cpk/1170/ Mon, 07 Mar 2016 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1170/ <p>For yet unknown reasons the private class network interfaces where incorrectly numbered and activated Solution: Reboot</p> https://cncz.science.ru.nl/en/cpk/1168/ Fri, 26 Feb 2016 09:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1168/ <p>Because of an upgrade of gitlab to version 8.5.1, the <a href="https://cncz.science.ru.nl/en/howto/gitlab/">GitLab</a> service will be offline for a while.</p> https://cncz.science.ru.nl/en/cpk/1167/ Thu, 25 Feb 2016 07:25:00 +0100 https://cncz.science.ru.nl/en/cpk/1167/ <p>Because of automated updates, Several virtual host had become unreachable. Server vos: gitlab3, bfacdc04, smtp2, redmine2 Server wolf: smtp1, bfacdc03, est2</p> <p>Rebooted vos and wolf.</p> https://cncz.science.ru.nl/en/cpk/1166/ Tue, 23 Feb 2016 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1166/ <p>For unknown reasons, the miii mail server was unavailable. Rebooted.</p> https://cncz.science.ru.nl/en/cpk/1165/ Mon, 22 Feb 2016 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1165/ <p>For unknown reasons, the IMAP mail server was unavailable. The service cyrus-imapd was not correctly started. Starting this service <strong>service cyrus-imapd start</strong> solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1164/ Mon, 15 Feb 2016 11:20:00 +0100 https://cncz.science.ru.nl/en/cpk/1164/ <p>For unknown reasons, the IMAP mail server was unavailable. Mail services were halted after some time because of logging activity. As a temporary workaround logging is now performed using UDP instead of TCP.</p> https://cncz.science.ru.nl/en/cpk/1163/ Tue, 09 Feb 2016 09:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1163/ <p>The Ubuntu 14.04 fileservers “flock” and “muckle” had problems a few times. After we reverted to the previous kernel version, the service seems to be stable again.</p> https://cncz.science.ru.nl/en/cpk/1162/ Mon, 08 Feb 2016 08:58:00 +0100 https://cncz.science.ru.nl/en/cpk/1162/ <p>Last night the Matlab license server crashed, because the number of open file handles reached the maximum configured, because a user started a lot of Matlab processes. Because we do not yet monitor this properly and it was not reported to us, we could only repair it this morning. We increased the number of file handles by a factor of four. We assume that this will be sufficient to wait till the reboot of next Monday, when it will again be enlarged, this time by a factor of sixteen. We will also on short notice start to monitor the Matlab license server properly.</p> https://cncz.science.ru.nl/en/cpk/1161/ Mon, 01 Feb 2016 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1161/ <p>The server lilo4 stalled at shutdown during the monday morning reboot. Solution: it continued its reboot after server wielewaal became available.</p> https://cncz.science.ru.nl/en/cpk/1160/ Mon, 01 Feb 2016 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1160/ <p>Quite a number of websites of ICIS were not available amongst which was eGroupWare. Furthermore, the boot process of workstations was impaired (because of the missing tftp). A reboot of the server seems to be sufficient to solve the issue.</p> <p>Affected websites:</p> <p><code>blackgem brainhealth croatia14 croatia15 cs eduspec eduspecorg egw</code> <code>ethergids fbkr kickstart mhealth oni snn</code></p> https://cncz.science.ru.nl/en/cpk/1159/ Thu, 21 Jan 2016 11:44:00 +0100 https://cncz.science.ru.nl/en/cpk/1159/ <p>The DHCP server didn’t have free leases on Vlan136, so new devices on Vlan136 didn’t get an IP address, so didn’t have a working network connection. After we freed some unused numbers for PCs with a fixed address, we were able to drastically enlarge the number of leases on Vlan136.</p> https://cncz.science.ru.nl/en/cpk/1158/ Wed, 20 Jan 2016 12:57:00 +0100 https://cncz.science.ru.nl/en/cpk/1158/ <p>In Huygens wing 2 a network switchmodule crashed twice. About 30 pc’s in the Study Area lost their connection to the network for some time. The switchmodule will be replaced on 2016-01-21 at 07:30 am.</p> https://cncz.science.ru.nl/en/cpk/1157/ Wed, 20 Jan 2016 09:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1157/ https://cncz.science.ru.nl/en/cpk/1156/ Fri, 15 Jan 2016 17:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1156/ <p>Affected sites:</p> <p><code>aerochem akn aqua bb2syllabus bgard boekingen boekwur bomengids cac</code> <code>cafe celbi dossiers est2b exo filosofie fnwi hfml iconic ifl irmacrash</code> <code>itp2011 iwwrbook kanboard kndv labservant leonardo math mbfys mbp</code> <code>nieuwescheikunde nlt notebooks olympus pilab piwik printeger projecten</code> <code>puff pz qpl quantumcs refbase resourceanalysis rrl scheiolymp setup</code> <code>siam sigma-lustrum sito smartech4health studiereis sws tango taskboard</code> <code>tk toernooi tredd trooster ubuntumirror vsc w4kangoeroe wortel</code></p> https://cncz.science.ru.nl/en/cpk/1155/ Wed, 13 Jan 2016 07:16:00 +0100 https://cncz.science.ru.nl/en/cpk/1155/ <p>The virtual hosts fret, wolf and vos received updates to libvirt packages, causing the network interfaces of the virtual machines running on them to fail. Solved after reboot (fret) or restart of the libvirt daemons and the virtual machines.</p> <p>Affected virtual machines:</p> <p><code>bfacdc03 bfacdc04 drukker est2 gitlab3 ms2</code> <code>nwidc01 redmine2 smtp1 smtp2 ts2</code></p> https://cncz.science.ru.nl/en/cpk/1154/ Mon, 11 Jan 2016 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1154/ <p>The server lilo3/4 stalled at shutdown during the monday morning reboot. Solution: power cycle. Cause currently unknown.</p> https://cncz.science.ru.nl/en/cpk/1153/ Tue, 05 Jan 2016 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1153/ <p>The server comas1 did not start due to some possible timing problems between the raid array and OS. Solution: skipping the mount of /vd0 and /vd1 during boot (key S), mounts fixed manually later on followed by exportfs -uaf; exportfs -raf.</p> <p>Machine failed for unknown reason at boot. Solved by rebooting.</p> https://cncz.science.ru.nl/en/howto/network-profile/ Wed, 25 Nov 2015 14:12:31 +0000 https://cncz.science.ru.nl/en/howto/network-profile/ <h1 id="manual-for-the-bw-pc-for-students">Manual for the BW-PC for students</h1> <h2 id="how-to-log-in-faster-and-not-lose-data">How to log in faster and not lose data.</h2> <h3 id="introduction">Introduction</h3> <p>Regularly students complain about the time it takes to log into and out from PC’s in the computer labs. This manual explains the reason behind it and what you can do about it yourself.</p> <h3 id="working-with-the-ccz-profile-and-home-disk-h">Working with the C&amp;CZ Profile and Home-disk (H:\)</h3> <p>In order to have your own settings (your “profile”), C&amp;CZ uses three central computers, the so-called “Domain Controllers”. Your profile consists of all kind of user-specific stuff like desktop background, shortcuts on your desktop and all kinds of user-specific settings of programs (e.g.: recently opened documents in Word, recently typed commands in Matlab etc.). You can find these settings in &ldquo;C:’‘/Documents and Settings/<code>&lt;inlognaam&gt;</code>/&rdquo;. All of this profile is copied when you login, from the Domain Controller to your local computer because Windows needs these settings often and fast to run your prograns fast. When you logout, all changes are copied back to the Domain Controller, in order to have an up-to-date copy that is needed when you login to a different PC. Next to your profile disk space (30 MB) every user also has a Home-disk (home-directory, H:\, ’My Documenst’) for large documents, reports, pictures etc. This drive is usually at least 200 MB large. This home-directory is *not* being copied when you log in or out, it is part of a central C&amp;CZ server that is reachable through the network as (H:\ , ‘\\manus\&lt;inlognaam&gt;’ of ‘\\pluri\&lt;inlognaam&gt;’).</p> https://cncz.science.ru.nl/en/cpk/1152/ Mon, 23 Nov 2015 15:52:00 +0100 https://cncz.science.ru.nl/en/cpk/1152/ <p>Yesterday at ca. 15:52 a <a href="http://www.surf.nl" target="_blank">SURFnet</a> core router crashed, taking down the RU Internet connection. At 16:09 the connection was restored. This was reported yesterday on <a href="http://grotestoring.surfnet.nl/" target="_blank">a temporary SURFnet service interruptions page</a> and on the <a href="http://www.ru.nl/systeem-meldingen/" target="_blank">ISC/CIM service interruptions page</a>. Details can be found on the <a href="https://list.surfnet.nl/pipermail/nettic/" target="_blank">SURFnet Network Tickets mailing list</a>.</p> https://cncz.science.ru.nl/en/cpk/1151/ Thu, 19 Nov 2015 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1151/ <p>After a reboot of the print server (and waiting ca. 10 minutes) printers could be attached again.</p> https://cncz.science.ru.nl/en/cpk/1150/ Mon, 16 Nov 2015 08:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1150/ <p>As a result of a short network service interruption last night, there were some problems with obtaining ip addresses on the wireless network eduroam.</p> https://cncz.science.ru.nl/en/cpk/1149/ Wed, 04 Nov 2015 23:20:00 +0100 https://cncz.science.ru.nl/en/cpk/1149/ <p>System crashed possibly caused by an erroneous harddisk causing all CPUs to lockup.</p> https://cncz.science.ru.nl/en/cpk/1148/ Tue, 20 Oct 2015 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1148/ <p>The <a href="http://www.ru.nl/isc" target="_blank">ISC</a> has <a href="http://www.ru.nl/systeem-meldingen/" target="_blank">announced</a> that on Tuesday morning, October 20, 2015 between 00:00 and 03:00 SURFnet and the ISC will perform maintenance on the connection of the RU with SURFnet/Internet. From 00:00 to 01:30 there is no connection. Between 01:30 and 03:00 short interruptions may occur. We advise to check which systems can be affected by this and if possible shift network activity to a different time slot. You also might think about systems with alerts via Internet.</p> https://cncz.science.ru.nl/en/cpk/1147/ Thu, 08 Oct 2015 08:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1147/ <p>In the morning of October 8, some KM MFPs will be switched, in order to have the faster/bigger machines at the locations where the print volume is te largest. The replacement of each machine will not take much time.</p> <p>Affected printers:</p> <p><code>pr-hg-00-011 pr-hg-00-089 pr-hg-00-627 pr-hg-00-825</code> <code>pr-hg-02-038 pr-hg-02-556 pr-hg-02-832</code></p> https://cncz.science.ru.nl/en/cpk/1146/ Mon, 05 Oct 2015 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1146/ <p>The server lilo4 stalled at shutdown during the monday morning reboot. Solution: power cycle. Cause currently unknown.</p> https://cncz.science.ru.nl/en/cpk/1145/ Wed, 30 Sep 2015 16:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1145/ <p>Wednesday September 30, around 4:00 p.m., Radboudumc will carry out a <a href="http://www.radboudnet.nl/actueel/nieuws/@1012772/noodstroomtest/" target="_blank">test by switching off the power to almost all their buildings</a>. For the RU buildings this test has no direct effect. <a href="http://www.liander.nl/" target="_blank">Liander</a> states that switching off and on again will have no noticeable effect on the rest of the power net in Nijmegen including Radboud University. However, switching high power always has the possibility of introducing a power problem elsewhere. If research, education or any activity will be seriously hindered by a power problem, you might consider ending this activity in time or taking measures to guarantee continuity with emergency power and UPS.</p> https://cncz.science.ru.nl/en/cpk/1144/ Sat, 12 Sep 2015 09:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1144/ <p>Saturday September 12, between 9:00 a.m. and 1:00 p.m., maintenance work will be conducted on the network router at the Faculty of Science and a number of server switches in C&amp;CZ data centers. This means that between these points in time, a few brief network interruptions with a duration of approximately 1 minute will occur. Many FNWI servers will be unreachable at those moments. The Mitel IP phones will also go out of service momentarily several times. All other phones, however, will continue to operate normally. The maintenance work is necessary to enable resumption of the IP telephony rollout at the Faculty of Science. For further information, please contact <a href="https://cncz.science.ru.nl/en/howto/contact/">netmaster@science.ru.nl</a>.</p> https://cncz.science.ru.nl/en/cpk/1143/ Mon, 07 Sep 2015 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1143/ <p>This morning we came to know that mails to mailing lists were not accepted by the mailing list server. The reason was a change that was made last Friday because of the new smtp server mid July. After correcting the change, mails were accepted again.</p> https://cncz.science.ru.nl/en/cpk/1142/ Mon, 07 Sep 2015 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1142/ <p>During the move this weekend of network shares to a new server, an administrative error was made, that prevented the server from rebooting ok. After correcting this, the server booted ok.</p> <p>Affected network disks:</p> <p><code>acs4 afric afstud afstudeerwerk afstudTest albert</code> <code>bin bioalg bioexamencie bko BKO-TEMPLATE ccz cczhelpdesk cczsecr celbio2 celbio3 CuDoTest CURSUS</code> <code>cursusdossiers diafragma ecogen ecologie embdata evsf2data10 evsf2data15 evsf2data16 evsf2data17</code> <code>evsf2data18 evsf2data19 evsf2data7 evsf2data8 evsf2data9 fsr geminstr grafting honours huckgroup</code> <code>hybrids ifl-d1 imappdir imappsecr immbureau iobw kolkteaching localdist logs mbaudit3 mbbioel2</code> <code>mbonderwijs mbsynid micro-bulk1 micro-bulk2 micro-labmembers milkun8 milkun9 mlf90 mlfalgemeen</code> <code>mlfsec molchem3 morph mpcoldmollab mppstaf nmr500data nmrspectra olcbiocie olcbiowetenschappen</code> <code>orgdier owc1 parp petseq project1mpp seq snn3 snn4 soheto studiereis2013 sucudo-transfer tf2devices</code> <code>tracegas unl vcbio_prive vergader vsc16</code></p> https://cncz.science.ru.nl/en/cpk/1140/ Mon, 31 Aug 2015 14:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1140/ <p>Since 14:00 this afternoon it’s not possible to reach phones outside the campus. Also, only external phones on the KPN network and cell phones from all providers can reach the campus.</p> <p>For central RU service interruptions and planned maintenance, see the <a href="http://www.ru.nl/systeem-meldingen/?id=172&amp;lang=nl&amp;tg=0&amp;f=0" target="_blank">combined ISC/CIM interruptions page</a>.</p> https://cncz.science.ru.nl/en/cpk/1141/ Mon, 31 Aug 2015 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1141/ <p>A leak above the KM MFP hg PR-03-825 made this fail beyond repair. We hope to resolve this by replacing it by a little-used KM MFP of the same type.</p> https://cncz.science.ru.nl/en/cpk/1139/ Thu, 06 Aug 2015 08:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1139/ <p>Starting from 8:45h, the network disks will not be available during a migration to a new server.</p> <p>Affected disks:</p> <p><code>45t, acfiles2, acs4, afric, afstud, afstudeerwerk,</code> <code>afstudTest, albert, arb, bbb-priv, bin, bioalg, bioexamencie, birds, bko, botany-general,</code> <code>bsweet, carta, ccs4, ccz, cczhelpdesk, cczsecr, celbio2, celbio3, CuDoTest, cursus,</code> <code>cursusdossiers, dcnadmin, diafragma, ecogen, ecologie, embdata, evsf2data10, evsf2data15,</code> <code>evsf2data16, evsf2data17, evsf2data18, evsf2data19, evsf2data7, evsf2data8, evsf2data9,</code> <code>exoarchief, flaredisc, fsr, geminstr, gi1, gi3, gipsy, grafting, hfml-data, hfml-engineering,</code> <code>hfml-secr, honours, huckgroup, hybrids, icissec, ifl, ifl-d1, imappdir, imappdir, imappsecr,</code> <code>immbureau, iobw, iris, itt, iwwr1, kolkteaching, lambiek, localdist, logs, mailmanincludes,</code> <code>mbaudit3, mbbioel, mbbioel2, mbcns, mbcortex, mbonderwijs, mb-read-write, mbsynid, mercator,</code> <code>mestrelab, mi1, mi3, micro-bulk1, micro-bulk2, micro-labmembers, milkun4, milkun4rw, milkun8,</code> <code>milkun9, mlf90, mlfalgemeen, mlfsec, molchem, molchem2, molchem3, molphtec, mol-secr, morph,</code> <code>mpcoldmollab, mppstaf, multimedia, neuropi, nmr500data, nmrspectra, nskpromo, olcbiocie,</code> <code>olcbiowetenschappen, ons, orgdier, owc, owc1, parp, pcb, petseq, plantkunde-hgl, practica,</code> <code>project1mpp, rotax, seq, smol, snn, snn2, snn3, snn4, soheto, sos, spmdata1, SSNMR1,</code> <code>studiereis2013, sucudo-transfer, tcbackup, tcscratch, tece, teceleiding, tf2devices, thchem,</code> <code>tracegas, tracegastemp, tracelab, tracelabdb, unl, vcbio_prive, vergader, vsc16, vscxray,</code> <code>wikis, wiskundetoernooi en zeegras</code></p> https://cncz.science.ru.nl/en/cpk/1138/ Fri, 31 Jul 2015 09:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1138/ <p>The server vos will receive extra disks and need to be reconfigured. Virtual clients gitlab3, redmine2 and smtp2 will be offline during maintenance.</p> https://cncz.science.ru.nl/en/cpk/1136/ Fri, 26 Jun 2015 08:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1136/ <p>Starting from 8:45h, the network disks will not be available during a migration to a new server.</p> <p>Affected disks:</p> <p><code>acfiles, aerochem, amsbackup, amscommon,</code> <code>beevee, bfac-backup, bio-orgchem, bioniccell, carisma, chemprac, csg-staf,</code> <code>csgi-archief, desda, ds, ehef1, ehef2, ehef3, geminstr2, giphouse, gissig,</code> <code>gmi, hfml-backup2, highres, impuls, introcie, isis, janvanhest, kaartenbak,</code> <code>kangoeroe, mbaudit1, microbiology, microbiology2, milkun2, milkun3, milkun5,</code> <code>milkun6, milkun7, milkun7rw, molbiol, mwstudiereis, neuroinf, neuroinf2, nfstest,</code> <code>nwibackup, olympus, puc, ruversatest, secres2, secrmolbiol, sigma, sigmacies,</code> <code>spectra, spm, spmdata3, spmdata4, spmdata5, spmdata6, spmdata7, spmmagstm,</code> <code>spmnanolab, spmstaff, ssi, staff-hfml, stroom, thalia, ucm, vsc, vsc1, vsc10,</code> <code>vsc11, vsc12, vsc13, vsc14, vsc15, vsc2, vsc3, vsc4, vsc5, vsc6, vsc7, vsc8,</code> <code>vsc9, vscadmin, wiskalg, wiskunde en wkru.</code></p> https://cncz.science.ru.nl/en/cpk/1135/ Mon, 15 Jun 2015 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1135/ <p>After the server reboot on Monday morning, the changes to the home directories of the last two weeks had disappeared. It is still not clear how this could have happened. The backups of Saturday June 13 22:55 have been restored.</p> https://cncz.science.ru.nl/en/cpk/1137/ Sat, 13 Jun 2015 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1137/ <p>Starting a month ago, mail programs could get an update due to the vulnerability for a <a href="https://weakdh.org/" target="_blank">LogJam</a> attack. After this update these programs refused connections with a server with a too short key. The old C&amp;CZ <a href="https://cncz.science.ru.nl/en/howto/email#outgoing-email">authenticated SMTP server</a> had such a short key. Users who reported this problem (with the latest versions of Pine, Thunderbird and recently also Apple Mail), were advised to temporarily use an alternative server. As of today using this alternative server is no longer necessary, because the server smtp.science.ru.nl has been replaced by a new server.</p> https://cncz.science.ru.nl/en/cpk/1134/ Thu, 11 Jun 2015 20:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1134/ <p>A short power dip interrupted desktop computers and some network switches without UPS backup power on the RU campus. It took approx. 20 minutes before the affected switches became fully operational again. A network switch at the Transitorium reported a failed module until it was reset around 8:30 am on Friday morning. For ca. 46 outlets/users the network didn’t function until 8:40. The <a href="http://www.ru.nl/uvb" target="_blank">UVB</a> reported as cause a cable cut at the Kapittelweg. Liander reports a <a href="https://www.liander.nl/storingen/overzicht/storing?storingsnummer=3963192" target="_blank">power disturbance an hour later</a> at that location.</p> https://cncz.science.ru.nl/en/cpk/1133/ Fri, 05 Jun 2015 16:05:00 +0200 https://cncz.science.ru.nl/en/cpk/1133/ <p>Resolved by a server reboot.</p> https://cncz.science.ru.nl/en/cpk/1132/ Wed, 03 Jun 2015 12:10:00 +0200 https://cncz.science.ru.nl/en/cpk/1132/ <p>The server (cn99) which serviced SUN Grid Engine on Ubuntu 10.04 is no more. It could not find its disks while booting. This will not be solved because the machine is already more than five years old. Clusternodes cn67, cn74, cn75 and cn81 are influenced. They can still be used by logging into them directly.</p> https://cncz.science.ru.nl/en/cpk/1131/ Sat, 30 May 2015 07:34:00 +0200 https://cncz.science.ru.nl/en/cpk/1131/ <p>A configuration error caused the automatic installation of an older version of GitLab (7.7.1) over the the most recent version (7.11.4). Because the GitLab version did not correspond to the state of the underlying database, what caused multiple problems. Among which the gitlab shell for ssh access and inaccessibility of some parts of the web interface. The problems were solved after upgrading to version 7.11.4.</p> https://cncz.science.ru.nl/en/cpk/1130/ Mon, 11 May 2015 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1130/ <p>Today the license server booted without configuring the network. The cause of the problem was an error in a configuration file. This has been corrected.</p> <p>Affected licenses:</p> <p><code>Altera Ansys Accelrys Genesys Hdlworks Idapro</code> <code>Xilinx IntelCompiler Ingr Maple Mathematica Matlab MentorGraphics Mestrelab</code> <code>Topspin Orcad Originlab</code></p> https://cncz.science.ru.nl/en/cpk/1129/ Mon, 16 Feb 2015 23:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1129/ <p>The IMAP server will be replaced by a new server next Monday night. During the night, no Science mail can be read from the server, because then the most recent mails will be synchronized to the new server. Mail can be sent in this period, but new mail will start being delivered on the new server from 07:30. A word of warning, one could login on the old server with the first 8 characters of the password, the new server only accepts the full password.</p> https://cncz.science.ru.nl/en/cpk/1128/ Wed, 11 Feb 2015 18:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1128/ <p>The configurations in the network switches in the buildings/floors/locations mentioned above, will be replaced. This means that both wired en wireless networks at these locations will be interrupted and network traffic will not be possible.</p> https://cncz.science.ru.nl/en/cpk/1127/ Wed, 04 Feb 2015 16:42:00 +0100 https://cncz.science.ru.nl/en/cpk/1127/ <p>Due to a configuration fault in a C&amp;CZ server switch it became unreachable. Therefore some servers and services were unreachable as well (nameserver, mail etc). After a quick fix the systems were up and running again.</p> https://cncz.science.ru.nl/en/cpk/1126/ Sat, 17 Jan 2015 07:54:00 +0100 https://cncz.science.ru.nl/en/cpk/1126/ <p>Saturday morning, during maintenance by <a href="http://www.ru.nl/uvb" target="_blank">UVB</a> and <a href="https://www.liander.nl/" target="_blank">Liander</a>, there were a few short unintended power dips in the Huygens building. A large part of the network switches does not have a <a href="http://en.wikipedia.org/wiki/Uninterruptible_power_supply" target="_blank">UPS</a> and thus restarted. After 09:11 all switches were operational again.</p> <p>Background: January 10 and 17, maintenance has been carried out on the power transformers in the Huygens building. This work should be carried out once every 5 years. Because a power failure of 6-8 hours (duration of maintenance) is unacceptable for the Faculty of Science, last year bypasses have been constructed, to make the transformers able to replace each other. Beforehand, the chance that a power failure should occur, was thought to be particularly small. The next time such a service is planned, in 2020, everyone will be informed in advance.</p> https://cncz.science.ru.nl/en/cpk/1125/ Thu, 08 Jan 2015 17:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1125/ <p>The license server still runs Ubuntu 10.04. This means that in a few months it would not receive security updates. Furthermore we want to use this server for DNS/DNSSEC/DHCP-service, which makes Ubuntu 14.04 necessary. Because this is a license server, we cannot switch to a new server, but we will place disks with the new OS in the existing server. Because this only means a small amount of downtime, users will hardly notice.</p> https://cncz.science.ru.nl/en/cpk/1124/ Wed, 07 Jan 2015 14:35:00 +0100 https://cncz.science.ru.nl/en/cpk/1124/ <p>Resolved by a server reboot.</p> <p>Affected disks:</p> <p><code>acfiles beevee bioniccell bio-orgchem celbio1 celbio2</code> <code>chemprac csgi-archief csg-projecten csg-staf desda ds ehef1</code> <code>ehef2 ehef3 femtospin geminstr2 giphouse gissig gmi hfml-backup hfml-backup2 hfml-backup-inst highres impuls</code> <code>introcie isis janvanhest kaartenbak kangoeroe mathsolcie microbiology microbiology2</code> <code>milkun2 milkun2RenD milkun3 milkun5 milkun6 milkun7 milkun7rw</code> <code>molbiol mwstudiereis neuroinf neuroinf2 olympus puc randomwalkmodel secres2 sigma sigmacies spectra spectra-rw</code> <code>spm spmdata3 spmdata4 spmdata5 spmdata6 spmdata7 spmstaff ssi staff-hfml stroom thalia ucm vsc</code> <code>vsc1 vsc10 vsc11 vsc12 vsc13 vsc14 vsc15 vsc2 vsc3 vsc4 vsc5 vsc6 vsc7 vsc8 vsc9 vscadmin wiskalg wiskunde wkru</code></p> https://cncz.science.ru.nl/en/cpk/1123/ Wed, 24 Dec 2014 17:46:00 +0100 https://cncz.science.ru.nl/en/cpk/1123/ <p>There was again a problem with another harddisk of the IMAP server. This made the server unusable. A reboot solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1122/ Wed, 24 Dec 2014 09:20:00 +0100 https://cncz.science.ru.nl/en/cpk/1122/ <p>The IMAP server got overloaded again which could not be due to user usage. The server was rebooted since all I/O processing was stopped and we could not kill any processes. Snapshots have now been completely disabled. It took quite some time before the server had all disks and filesystems in working order.</p> https://cncz.science.ru.nl/en/cpk/1121/ Mon, 15 Dec 2014 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1121/ <p>There was a problem with a failed harddisk of the IMAP server. This slowed the machine down so that it was practically unusable. The problem was solved by replacing the disk.</p> https://cncz.science.ru.nl/en/cpk/1120/ Wed, 26 Nov 2014 09:45:00 +0100 https://cncz.science.ru.nl/en/cpk/1120/ <p>As <a href="http://www.ru.nl/systeem-meldingen/" target="_blank">reported by the ISC</a>, the RU was victim of a DDOS attack. As a consequence of this is the connection to the Internet was interrupted. Measures have been taken to prevent a similar attack having this result in the future.</p> https://cncz.science.ru.nl/en/cpk/1118/ Wed, 19 Nov 2014 18:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1118/ <p>The network switches in the buildings/floors/locations mentioned above will be replaced. This means that both wired en wireless networks at these locations will be interrupted and network traffic will not be possible. This includes the network for access control, climate control etc.</p> https://cncz.science.ru.nl/en/cpk/1117/ Mon, 17 Nov 2014 16:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1117/ <p>The server nachtwacht reports having a hard drive that will soon fail. We will replace the disk as soon as possible.</p> https://cncz.science.ru.nl/en/cpk/1116/ Sat, 15 Nov 2014 11:29:00 +0100 https://cncz.science.ru.nl/en/cpk/1116/ <p>The server that acts within FNWI as first <a href="http://en.wikipedia.org/wiki/Domain_Name_System#DNS_resolvers" target="_blank">DNS resolver</a> crashed, probably because of a disk becoming defective. This made the network slow or even virtually unusable for a lot of computers in FNWI. Only after a reboot of the server, the problem1 was solved. Monday morning, at the weekly reboot of this server, it would only boot after manually acknowledging the defective disk (problem2), When other servers rebooted at 06:30, a lot of them had problems due to the missing DNS resolver. Further measures to reduce the inconvenience of such a crash have been taken. The move to new DNS servers is in preparation.</p> https://cncz.science.ru.nl/en/howto/t-schijf/ Fri, 14 Nov 2014 11:44:26 +0000 https://cncz.science.ru.nl/en/howto/t-schijf/ <h2 id="t-disk">T-disk</h2> <p>On <a href="https://cncz.science.ru.nl/en/howto/windows-beheerde-werkplek/">pc’s in computer labs</a> which are managed by C&amp;CZ, not only the <a href="https://cncz.science.ru.nl/en/howto/s-schijf/">S-disk</a> is available but also the T-disk (a <a href="https://cncz.science.ru.nl/en/howto/netwerkschijf/">network share</a>). On this network share, a large number of programs for a large number of courses is available that can be run directly from this share (no local installation on the pc necessary). Lecturers can manage the course software themselves. These programs may also be used on pc’s that are not managed by C&amp;CZ.</p> https://cncz.science.ru.nl/en/howto/s-schijf/ Fri, 14 Nov 2014 11:32:29 +0000 https://cncz.science.ru.nl/en/howto/s-schijf/ <h2 id="s-disk">S-disk</h2> <p>On <a href="https://cncz.science.ru.nl/en/howto/windows-beheerde-werkplek/">pc’s managed by C&amp;CZ</a> the S-disk (a <a href="https://cncz.science.ru.nl/en/howto/netwerkschijf/">network share</a>) is available by default. On this share a large number of programs is available that can be run directly form this share (no local installation needed). These programs can also be used on pc’s not managed by C&amp;CZ.</p> <p>Attach the <a href="https://cncz.science.ru.nl/en/howto/netwerkschijf/">network share</a> as <strong>\\software-srv.science.ru.nl\software</strong> using Drive letter S because some software might depend on the driveletter S.</p> https://cncz.science.ru.nl/en/howto/pine/ Fri, 14 Nov 2014 09:31:06 +0000 https://cncz.science.ru.nl/en/howto/pine/ <h3 id="pine">Pine</h3> <p>Use ‘S’ for SETUP and then’C&quot; for Config and fill in:</p> <pre><code> smtp-server = smtp.science.ru.nl/user=... inbox-path = {post.science.ru.nl/ssl/user=...}INBOX </code></pre> <p>where … should be replaced by your login name</p> <p>To see the other IMAP folders, use ‘S&quot; for SETUP and then ’C’ for Config and change:</p> <pre><code> [ Folder Preferences ] [X] combined-folder-display [X] expanded-view-of-folders [X] quell-empty-directories </code></pre> <p>Ook nog binnen SETUP: kies ‘L’ voor collectionLists en maak met ‘A’ twee nieuwe collection lists:</p> https://cncz.science.ru.nl/en/cpk/1115/ Wed, 12 Nov 2014 14:45:00 +0100 https://cncz.science.ru.nl/en/cpk/1115/ <p>Resolved by a server reboot.</p> <p>Affected network shares:</p> <p><code>acfiles ARK-Backup Bargerveen Bargerveen-Gebruikers beevee bioniccell</code> <code>bio-orgchem B-Ware-Arnica B-Ware-Dotter B-Ware-Erica B-Ware-Knolrus</code> <code>B-Ware-Lobelia B-Ware-Stratiotes celbio1 celbio2 csgi-archief csg-staf</code> <code>cvi desda ds ehef1 evsf2dataoud evsf2schijf1 femtospin Floron geminstr2</code> <code>giphouse gissig gmi hfml-backup hfml-backup2 highres impuls introcie</code> <code>isis janvanhest kaartenbak kangoeroe microbiology microbiology2 milkun2</code> <code>milkun3 milkun5 milkun6 milkun7 milkun7rw molbiol mwstudiereis neuroinf</code> <code>neuroinf2 nfstest nwibackup olympus puc RandomWalkModel Ravon-Algemeen</code> <code>Ravon-Foto Ravon-Projecten secres2 sigma sigmaalmanak sigmacies sigmaexchange</code> <code>sigmasymposium splex spmdata3 spmdata4 spmdata5 spmdata6 spmdata7 stroom</code> <code>thalia ucm vsc vsc1 vsc10 vsc11 vsc12 vsc13 vsc14 vsc15 vsc2 vsc3 vsc4</code> <code>vsc5 vsc6 vsc7 vsc8 vsc9 vscadmin wiskalg wiskunde</code></p> https://cncz.science.ru.nl/en/cpk/1114/ Tue, 11 Nov 2014 18:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1114/ <p>The network switches in the buildings/floors/locations mentioned above will be replaced. This means that both wired en wireless networks at these locations will be interrupted and network traffic will not be possible. This includes the network for access control, climate control etc.</p> https://cncz.science.ru.nl/en/cpk/1113/ Tue, 11 Nov 2014 06:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1113/ <p>Because of a software upgrade of the network switches in the buildings/floors/locations mentioned above, these network switches will be rebooted at 06:00h (AM) exactly. This means that both wired en wireless networks at these locations will be interrupted for 10 to 15 minutes and network traffic will not be possible. This includes the network for access control, climate control etc.</p> https://cncz.science.ru.nl/en/cpk/1119/ Tue, 11 Nov 2014 06:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1119/ <p>After the network maintenance of 20141111 a single user reported later a problem with the wired network. These problems intensified and grew faculty wide on 20141119 at 13:34 hours. The network switches in the Faculty of Science received so many <a href="http://www.dummies.com/how-to/content/how-spanning-tree-protocol-stp-manages-network-cha.html" target="_blank">topology changes</a> of the <a href="http://en.wikipedia.org/wiki/Spanning_Tree_Protocol" target="_blank">Spanning Tree Protocol (STP)</a> that network traffic often stuttered. By curbing the STP traffic on 20141120 at 15:32 the stuttering disappeared. We still search for the exact cause, probably it is a housing move.</p> https://cncz.science.ru.nl/en/cpk/1112/ Thu, 06 Nov 2014 06:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1112/ <p>Because of a software upgrade of the network switches in the buildings/floors/locations mentioned above, these network switches will be rebooted at 06:00h (AM) exactly. This means that both wired en wireless networks at these locations will be interrupted for 10 to 15 minutes and network traffic will not be possible. This includes the network for access control, climate control etc.</p> <p>Locations:</p> <ul> <li>Huygens wing 3 all floors</li> <li>Huygens wing 4 all floors</li> <li>Huygens wing 8 all floors</li> <li>Huygens central street between wing 6 and 8 all floors</li> </ul> https://cncz.science.ru.nl/en/cpk/1111/ Tue, 04 Nov 2014 06:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1111/ <p>Because of a software upgrade of the network switches in the buildings/floors/locations mentioned above, these network switches will be rebooted on Tuesday morning at 06:00h (AM) exactly. This means that both wired en wireless networks at these locations will be interrupted for 10 to 15 minutes and network traffic will not be possible. This includes the network for access control, climate control etc.</p> <p>Locations: FELIX, HFML, Nanolab, Goudsmit pavillion (NMR), Lab DCN in A-2.002, Kinderopvang Heyendael (both buildings), Logistiek Centrum FNWI, Linnaeus building, Mercator 1, 6th floor</p> https://cncz.science.ru.nl/en/cpk/1110/ Wed, 29 Oct 2014 19:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1110/ <p>Because of an upgrade of the network switches in the buildings/floors/locations mentioned above, these network switches will be replaced. This means that both wired en wireless networks at these locations will be interrupted and network traffic will not be possible. This includes the network for access control, climate control etc.</p> https://cncz.science.ru.nl/en/cpk/1109/ Wed, 29 Oct 2014 09:38:00 +0100 https://cncz.science.ru.nl/en/cpk/1109/ <p>Due to a short <a href="http://nl.wikipedia.org/wiki/Distributed_denial-of-service" target="_blank">DDOS-attack</a> the RU was virtually disconnected from the Internet during ca 7 minutes. All network connected systems may have had problems during that time. Until 15:30 some Eduroam users still had problems acquiring an IP address.</p> https://cncz.science.ru.nl/en/cpk/1108/ Wed, 15 Oct 2014 03:44:00 +0200 https://cncz.science.ru.nl/en/cpk/1108/ <p>The router that regulates all IP traffic between subnets in the Huygens building and surrounding buildings, became <a href="http://cricket.science.ru.nl/grapher.cgi?target=%2Fswitches%2Fdr-huyg.heyendaal.net%2Fperformance;view=cpu" target="_blank">too busy</a>. All network traffic, especially <a href="http://en.wikipedia.org/wiki/User_Datagram_Protocol" target="_blank">UDP</a> had problems. ISC network admins reduced the load by simplifying the <a href="http://en.wikipedia.org/wiki/Access_control_list#Networking_ACLs" target="_blank">ACLs</a> and reducing logging. At about 12:00 the problem was temporarily solved. C&amp;CZ will do a further inspection of all ACLs, with the aim to reduce the load on the router without reducing security for connected systems.</p> https://cncz.science.ru.nl/en/cpk/1106/ Wed, 24 Sep 2014 08:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1106/ <p>On the <a href="http://www.ru.nl/ictservicecentrum/" target="_blank">ISC website</a> we read:</p> <p>Radboud University agreed on a new mobile telephone contract with - again - provider Vodafone. For this purpose, on Wednesday, September 24th during daytime the Radboud subscriptions will be adjusted. Employees with a Vodafone mobile wille have no disturbance in calling or being called that day. But the Vodafone data network might be temporarily unavailable. To restore the data connection it is necessary to turn the mobile phone off and then on again. Of course employees on campus can always use the eduroam Wi-Fi network.</p> https://cncz.science.ru.nl/en/cpk/1107/ Sat, 20 Sep 2014 10:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1107/ <p>The server that acts within FNWI as first <a href="http://en.wikipedia.org/wiki/Domain_Name_System#DNS_resolvers" target="_blank">DNS resolver</a> crashed. This made the network virtually unusable for a lot of computers in FNWI. Only after a reboot of the server, the problem was solved. Measures to reduce the inconvenience of such a crash and to make such a crash less likely, have been partly taken and are partly in preparation.</p> https://cncz.science.ru.nl/en/cpk/1105/ Tue, 09 Sep 2014 10:46:00 +0200 https://cncz.science.ru.nl/en/cpk/1105/ <p>A defective disk made the server stop serving web requests. A reboot fixed the problem. The defective disk will be replaced soon.</p> https://cncz.science.ru.nl/en/cpk/1104/ Mon, 08 Sep 2014 22:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1104/ <p>Due to an <a href="http://www.ru.nl/ictservicecentrum/actueel/storingsberichten/storing/" target="_blank">error during the planned maintenance by Surfnet</a> of the RU network interface, the uplink of Radboud University to Surfnet was down.</p> https://cncz.science.ru.nl/en/cpk/1103/ Mon, 08 Sep 2014 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1103/ <p>One of the filesystems contained errors and prevented the system from starting up.</p> https://cncz.science.ru.nl/en/cpk/1102/ Thu, 21 Aug 2014 16:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1102/ <p>Both processor fans have failed and need to be replaced.</p> https://cncz.science.ru.nl/en/cpk/1101/ Fri, 15 Aug 2014 12:04:00 +0200 https://cncz.science.ru.nl/en/cpk/1101/ <p>The fileserver had problems, which were resolved after a server reboot.</p> <p>Affected network shares:</p> <p><code>acfiles ARK-Backup Bargerveen Bargerveen-Gebruikers beevee bioniccell bio-orgchem</code> <code>B-Ware-Arnica B-Ware-Dotter B-Ware-Erica B-Ware-Knolrus B-Ware-Lobelia B-Ware-Stratiotes</code> <code>celbio1 celbio2 csgi-archief csg-staf cvi desda ds ehef1 evsf2dataoud evsf2schijf1</code> <code>femtospin Floron geminstr2 giphouse gissig gmi hfml-backup hfml-backup2 highres</code> <code>impuls introcie isis janvanhest kaartenbak kangoeroe microbiology microbiology2</code> <code>milkun2 milkun3 milkun5 milkun6 milkun7 milkun7rw molbiol mwstudiereis neuroinf</code> <code>neuroinf2 nfstest nwibackup olympus puc RandomWalkModel Ravon-Algemeen Ravon-Foto</code> <code>Ravon-Projecten secres2 sigma sigmaalmanak sigmacies sigmaexchange sigmasymposium</code> <code>splex spmdata3 spmdata4 spmdata5 spmdata6 spmdata7 stroom thalia ucm vsc vsc1</code> <code>vsc10 vsc11 vsc12 vsc13 vsc14 vsc15 vsc2 vsc3 vsc4 vsc5 vsc6 vsc7 vsc8 vsc9</code> <code>vscadmin wiskalg wiskunde</code></p> https://cncz.science.ru.nl/en/cpk/1100/ Thu, 14 Aug 2014 16:09:00 +0200 https://cncz.science.ru.nl/en/cpk/1100/ <p>While administering the network switchports for the move of ISIS to Mercator1 floor 0 to 3, ISC network management erroneously also changed the configuration of the network switchports of floor 4. When this was reported this morning, it could be readily remedied.</p> https://cncz.science.ru.nl/en/cpk/1099/ Mon, 07 Jul 2014 08:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1099/ <p>One of the mirrored disks failed. We didn’t manage to rebuild the raid set with a new disk. The system is reinstalled with two new disks. After that, data from /scratch could be recovered from one of the old disks.</p> https://cncz.science.ru.nl/en/cpk/1097/ Thu, 05 Jun 2014 16:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1097/ <p>The network drives will be migrated to a new server. During the migration, the <a href="https://cncz.science.ru.nl/en/howto/diskruimte#.5bnetwerk-schijven.5d.5bnetwork-shares.5d/">network drives</a> will be unavailable.</p> <p>Affected shares:</p> <p><code>acfiles, bioniccell, bio-orgchem, celbio1, CSGI-Archief,</code> <code>Csg-Staf, ds, evsf2schijf1, giphouse, gissig, gmi, hfml-backup,</code> <code>hfml-backup2, highres, impuls, introcie, isis, kaartenbak,</code> <code>microbiology, microbiology2, microbiologyftp, milkun2, milkun3,</code> <code>milkun5, milkun6, milkun7, milkun7rw, mwstudiereis, neuroinf,</code> <code>olympus, permissies, puc, secres2, sigma, sigmaalmanak, sigmacies,</code> <code>sigmaexchange, sigmasymposium, Soheto, splex, spmdata3, spmdata4,</code> <code>spmdata5, spmdata6, spmdata7, stroom, thalia, ucm, vsc, vsc1, vsc2,</code> <code>vsc3, vsc4, vsc5, vsc6, vsc7, vsc8, vsc9, vsc10, vsc11, vsc12,</code> <code>vsc13, vsc14, vsc15,wiskalg, wiskunde</code></p> https://cncz.science.ru.nl/en/cpk/1098/ Thu, 05 Jun 2014 16:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1098/ <p>The planned move of network drives from an old to a new server caused a lot of “stale NFS file handles”, which made it necessary to reboot some login servers.</p> https://cncz.science.ru.nl/en/cpk/1096/ Thu, 05 Jun 2014 14:05:00 +0200 https://cncz.science.ru.nl/en/cpk/1096/ <p>The IMAP server got overloaded again. Restarting the IMAP service was required to bring it back in operation. We think it is related to snapshots and therefore regularly remove invalid snapshots from now on.</p> https://cncz.science.ru.nl/en/cpk/1095/ Tue, 27 May 2014 14:05:00 +0200 https://cncz.science.ru.nl/en/cpk/1095/ <p>The IMAP server got overloaded. Restarting the IMAP service was required to bring it back in operation.</p> https://cncz.science.ru.nl/en/cpk/1094/ Mon, 26 May 2014 06:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1094/ <p>The server had a problem, which had started at the Monday morning reboot. A reboot of the machine solved the problem. Soon all data will be moved to a new server. This will not cause much problems for users, because everybody uses the aliases something-srv.science.ru.nl.</p> https://cncz.science.ru.nl/en/cpk/1092/ Mon, 19 May 2014 20:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1092/ <p>At Monday May 19, a major upgrade of the wireless infrastructure and its maintenance tool (called Prime) will take place by the ISC. Therefore the wireless service (i.e. Eduroam) will be interrupted several times from 8:00 pm. Existing wireless connections will be lost and new connections will not be possible for some time. Due to the complexity of this operation this maintenance will possibly be continued at Monday, May 26, again with interruptions from 8:00 pm.</p> https://cncz.science.ru.nl/en/cpk/1091/ Mon, 12 May 2014 13:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1091/ <p>One of the systemdisks reported SMART-errors and will be replaced.</p> https://cncz.science.ru.nl/en/cpk/1090/ Mon, 12 May 2014 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1090/ <p>Lilo did not shut down correctly during the planned weekly reboot. After a hardware reset, the machine booted just fine</p> https://cncz.science.ru.nl/en/cpk/1089/ Thu, 08 May 2014 16:24:00 +0200 https://cncz.science.ru.nl/en/cpk/1089/ <p>Just like yesterday, a reboot of the machine was necessary to restore the functionality. Tomorrow morning, the server will restart with a new kernel. It this doesn’t solve the problem, we will look into a new version of Samba.</p> https://cncz.science.ru.nl/en/cpk/1088/ Wed, 07 May 2014 12:49:00 +0200 https://cncz.science.ru.nl/en/cpk/1088/ <p>Just like yesterday, a reboot of the machine was necessary to restore the functionality. We will investigate if we can remediate this problem with newer software versions (Samba, Ubuntu, …)</p> https://cncz.science.ru.nl/en/cpk/1087/ Tue, 06 May 2014 13:40:00 +0200 https://cncz.science.ru.nl/en/cpk/1087/ <p>Some Eduroam users didn’t get an IP number, because one of the IP ranges had no free leases. This ranges contained all @science.ru.nl users. The <a href="http://www.ru.nl/isc" target="_blank">ISC</a> networking department first decreased the lease time. Now they also make this range free for use by @science.ru.nl users. This will prevent the problem from occuring again soon.</p> https://cncz.science.ru.nl/en/cpk/1085/ Tue, 06 May 2014 12:14:00 +0200 https://cncz.science.ru.nl/en/cpk/1085/ <p>Again a reboot of the machine was necessary to restore the functionality. As a patch we will reboot this server each night.</p> https://cncz.science.ru.nl/en/cpk/1086/ Wed, 30 Apr 2014 13:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1086/ <p>The new <a href="http://www.ru.nl/idm/" target="_blank">RU IdM system</a> erroneously rewrote the <a href="http://en.wikipedia.org/wiki/Cryptographic_hash_function#Password_verification" target="_blank">RU password hash</a> when data about a person changed. This primariliy affected employees of FNWI, because for this group the Science email address had been incorporated in IdM. This will make it possible to use the Science address as an external mail address when resetting RU passwords. When the problem was recognized, it was fixed swiftly by restoring the RU password hashes from backup.</p> https://cncz.science.ru.nl/en/cpk/1084/ Mon, 28 Apr 2014 12:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1084/ <p>April 28/29/30, the <a href="https://cncz.science.ru.nl/en/howto/peage/">Peage</a> MFP and the Peage POS near the restaurant in the Huygens building cannot be used. The <a href="http://www.ru.nl/isc" target="_blank">ISC</a> will then investigate whether Peage can also be made available for employees instead of only for students. April 28, the MFP will be moved to the test location, April 30 it will be moved back.</p> https://cncz.science.ru.nl/en/cpk/1093/ Mon, 21 Apr 2014 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1093/ <p>The printer has to be repaired. Spare parts have been ordered. We hope to have the printer operational again mid-May.</p> https://cncz.science.ru.nl/en/cpk/1083/ Thu, 17 Apr 2014 13:35:00 +0200 https://cncz.science.ru.nl/en/cpk/1083/ <p>Although the hardware of the server was replaced, the server didn’t react for unknown reasons. A reboot of the machine solved the problem. We will think about ways to tackle this problem.</p> https://cncz.science.ru.nl/en/cpk/1082/ Thu, 17 Apr 2014 08:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1082/ <p>Because of the recent problems with this server, we are going to replace the server, in order to prevent further service interruptions.</p> https://cncz.science.ru.nl/en/cpk/1081/ Wed, 16 Apr 2014 17:42:00 +0200 https://cncz.science.ru.nl/en/cpk/1081/ <p>The server had a problem with one partition, which had started during the creation of new snapshots. We waited with the reboot untill after working hours. A reboot of the machine solved the problem. To prevent these problems in the future, we will no longer make local snapshots of homeservers, but of course the daily backups of the homeservers by the backup server will be continued.</p> https://cncz.science.ru.nl/en/cpk/1080/ Mon, 14 Apr 2014 13:05:00 +0200 https://cncz.science.ru.nl/en/cpk/1080/ <p>Just like four days ago, the server didn’t react for unknown reasons. A reboot of the machine solved the problem. We plan to replace the server next Thursday 08:30-09:00 hours, in order to prevent further service interruptions.</p> https://cncz.science.ru.nl/en/cpk/1079/ Thu, 10 Apr 2014 12:54:00 +0200 https://cncz.science.ru.nl/en/cpk/1079/ <p>Just like two weeks ago, the server didn’t react for unknown reasons. A reboot of the machine solved the problem. Together with the supplier we will try to find out what to replace to prevent this in the future.</p> https://cncz.science.ru.nl/en/cpk/1078/ Fri, 04 Apr 2014 11:35:00 +0200 https://cncz.science.ru.nl/en/cpk/1078/ <p>From the moment of yesterday’s snapshots (13:00 hours), more and more processes were hung at the server. The first complaints arrived at C&amp;CZ ca. 11:15 hours this morning. Therefore we decided ca. 11:35 to restart the server. The reboot resolved the problem. The number of snapshots will be reduced in order to try to prevent problems due to snapshots in the future.</p> https://cncz.science.ru.nl/en/cpk/1077/ Wed, 02 Apr 2014 11:32:00 +0200 https://cncz.science.ru.nl/en/cpk/1077/ <p>Probably due to a too large printjob, the printer queue on the server (printto/printsmb/ooievaar) for the pr-hg-00-002 printer got stuck onWednesday morning. C&amp;CZ was only informed of this problem at the end of Thursday. Friday morning this has been fixed by emptying the printqueue with old jobs.</p> https://cncz.science.ru.nl/en/cpk/1076/ Thu, 27 Mar 2014 10:40:00 +0100 https://cncz.science.ru.nl/en/cpk/1076/ <p>The server didn’t react for unknown reasons. A reboot of the machine solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1074/ Mon, 24 Mar 2014 17:25:00 +0100 https://cncz.science.ru.nl/en/cpk/1074/ <p>The server had a problem with one partition. A reboot of the machine solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1075/ Mon, 10 Mar 2014 12:31:00 +0100 https://cncz.science.ru.nl/en/cpk/1075/ <p>The Linux login server lilo3 didn’t have the homedirectories of some users. It took a reboot to fix this.</p> https://cncz.science.ru.nl/en/cpk/1073/ Mon, 10 Mar 2014 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1073/ <p>The fileserver failed to start after the Monday morning reboot, because of filesystem errors (LVmd2-7). Manually fixing the errors solved the problem and the machine started successfully.</p> https://cncz.science.ru.nl/en/cpk/1072/ Wed, 05 Mar 2014 13:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1072/ <p>The server had a high load and stopped servicing users, probably because of problems with the creation of new snapshots at 13:00 hours. A reboot solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1069/ Mon, 03 Feb 2014 19:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1069/ <p>On Monday evening, February 3rd between 19:00 - 24:00 (7:00 - 12:00 pm) maintanance will be carried out on the network devices in Huygens Wing 5. Therefore the wired and wireless networks will not be available at some moments at all locations in this Wing, on all floors.</p> https://cncz.science.ru.nl/en/cpk/1068/ Tue, 28 Jan 2014 19:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1068/ <p>The announced proceedings on Tuesday, January 21st on the network equipment unfortunately did not take place due to a sudden instability of the network in Wing 1 the same day. In order to prevent further instability issues in Wing 2, it was necessary to solve the problems in Wing 1 first. These problems have been identified and corrected. The network maintenance in Wing 2 will now take place Tuesday, January 28th between 19:00 and 24:00 ( 7:00 pm to 12:00 ) during which the wireless and cabled networks will be off line for some time. This will affect all floors in Wing 2 and rooms along the corridors between wings 2 and 4 (all floors).</p> https://cncz.science.ru.nl/en/cpk/1067/ Tue, 21 Jan 2014 19:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1067/ <p>On Tuesday evening January 21 between 7:00 pm and 12:00 pm maintanance will be carried out on the network devices in Huygens wing 2. Therefore the wired and wireless networks will not be available at some moments at all locations in wing 2 and corridors between wings 2 and 4, on all floors.</p> https://cncz.science.ru.nl/en/cpk/1066/ Mon, 13 Jan 2014 19:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1066/ <p>On Monday evening January 13 between 7:00 pm and 12:00 pm maintanance will be carried out on the network devices in Huygens wing 1. Therefore the wired and wireless networks will not be available at some moments in many locations in wing 1 and corridors between wings 1 and 3, on all floors.</p> https://cncz.science.ru.nl/en/cpk/1065/ Mon, 06 Jan 2014 11:29:00 +0100 https://cncz.science.ru.nl/en/cpk/1065/ <p>Due to an error by an ISC network administrator, all internal and external RU network traffic was blocked for a short period.</p> https://cncz.science.ru.nl/en/cpk/1063/ Mon, 23 Dec 2013 07:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1063/ <p>The replacement of the old home server “bundle” has been postponed and will now guaranteed take place on Monday morning December 23. Because the data have been synchronized with the new server, there will not be much downtime. The new server should be very dependable: hardware <a href="http://en.wikipedia.org/wiki/RAID#RAID_6_replacing_RAID_5_in_enterprise_environments" target="_blank">RAID-6</a>, double processors and power supplies and a 5-year support contract from the supplier. The performance has improved, e.g. by using hardware RAID with a 1 GB <a href="http://serverfault.com/questions/65096/battery-backed-write-cache" target="_blank">write cache with battery backup</a>.</p> https://cncz.science.ru.nl/en/cpk/1064/ Mon, 23 Dec 2013 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1064/ <p>In the course of these two days, above network shares will be moved to new servers. During the move action, a share will not be available. If you encounter any problems connecting to a network share using Windows, always connect using the “share-name minus srv” naming scheme: \\sharenaam-srv.science.ru.nl\sharenaam. See also <a href="https://cncz.science.ru.nl/en/howto/diskruimte#naming/">Diskruimte#Naming</a>.</p> <p>Affected network shares:</p> <p><code>acfiles2 botany botany-general carta comsol digicd encapson encapson2</code> <code>exoarchief felix gi2 gi3 hfml-45t hfml-data hfml-engineering ifl iris</code> <code>mailmanincludes mbaudit1 mbaudit2 mbbioel mbcns mbcortex mbdata mbread</code> <code>mbwrite mestrelab mi2 mi3 milkun4 milkun4rw molchem molchem2 molphtec</code> <code>mol-secr multimedia neuropi ns3 nwi-backup onlyme owc pcb planthgl</code> <code>plantkunde-hgl sdisk/software share snn sofie spmdata1 tdisk/cursus tece teceleiding</code> <code>temp tracegastemp wallpaper xpcursus xpsoftware</code></p> https://cncz.science.ru.nl/en/cpk/1062/ Tue, 17 Dec 2013 19:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1062/ <p>Tuesday night December 17 19:00-24:00 hours, maintenance work will be done affecting the data network in Huygens wing 1. The wired and wireless network will suffer service interruptions a few times during that period. The main inconvenience will be on the ground floor.</p> https://cncz.science.ru.nl/en/cpk/1061/ Mon, 09 Dec 2013 12:48:00 +0100 https://cncz.science.ru.nl/en/cpk/1061/ <p>C&amp;CZ changed the DHCP-configuration of the KM MFP’s, because KM had told us all KM’s had an identical configuration after the upgrade of the night of December 4. Soon thereafter the KM’s outside of the Huygens building showed problems. After changing the DHCP-configuration back to the previous version and restarting the MFP’s, the problem was resolved. The firmware upgrade of these machines still has to take place.</p> https://cncz.science.ru.nl/en/cpk/1060/ Wed, 04 Dec 2013 02:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1060/ <p>Wednesday night, the firmware of the Konica Minolta multifunctionals will be upgraded. This should resolve existing problems, like the not waking up from sleep mode. Please report all remaining problems, for MFP-hardware and paper to KM via phone: 55955 option 4.</p> https://cncz.science.ru.nl/en/cpk/1059/ Tue, 03 Dec 2013 09:36:00 +0100 https://cncz.science.ru.nl/en/cpk/1059/ <p>Tuesday morning around half past nine, there was a short power dip for RU/UMCN, probably due to a switch error at Liander. This power dip, that is not listed on the <a href="http://www.liander.nl/liander/storingen_onderbrekingen/actueel_storingsoverzicht.htm;jsessionid=8BVgSdwF4SnwgtF62Qhcvp9PZPDSPyVQLfrRsbVGph0MW28zy2Z6!1492477250!2138117550?postcode=6525ED&amp;page=1&amp;ordering=SortDatumVan&amp;skipFlip=&amp;sortPlaats=inactive&amp;sortDatumVan=down&amp;sortDatumTot=inactive&amp;sortTypeOnderbreking=inactive&amp;sortUitgevallenComponenten=inactive&amp;sortOorzaak=inactive&amp;sortEnergiesoort=inactive&amp;sortGetroffenAfnemers=inactive&amp;toonAlles=false&amp;invoerDatumStart=02-12-2013&amp;invoerDatumEind=03-01-2014&amp;energiesoort=E&amp;energietype=option3" target="_blank">power interruption website</a>, made all systems restart that were not on UPS power. Because only the network switches in Huygens wing 1 and 7 are on UPS power, a lot of users lost their connection to the network, including wireless and IP-telephony, for about 20 minutes. Apparatus that restarted faster than the network, might have needed an extra restart to restore the connection to the network.</p> https://cncz.science.ru.nl/en/cpk/1070/ Sun, 01 Dec 2013 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1070/ <p>The <a href="http://www.ru.nl/isc" target="_blank">ISC</a> let us know that after the installation of patches installed in <a href="https://cncz.science.ru.nl/en/howto/bass/">BASS</a> during the weekend of December 1, the possibility to use a recent version of Java (version 7) had erroneously disappeared. As of February 11, 2014 this issue has been resolved. The function in BASS to work with all versions of Java SE (JRE) on the client (PC) has been reactivated. Furthermore all JAR-files in BASS have received a security certificate (they have been signed), with which it possible for BASS to work with the latest Java SE versions (Java SE 7.51 en hoger). BASS users who work with Forms, will see pop-up windows asking “Do you want to run this application?”. Of this a <a href="http://www.radboudnet.nl/publish/pages/685146/meldingen_java_nieuwe_versie_4.pdf" target="_blank">description has been made on the RU Intranet</a>.</p> https://cncz.science.ru.nl/en/cpk/1057/ Mon, 18 Nov 2013 06:33:00 +0100 https://cncz.science.ru.nl/en/cpk/1057/ <p>For unknown reasons, the network interface of the server was not online. Running ifdown / ifup eth2 resolved the problem.</p> https://cncz.science.ru.nl/en/cpk/1056/ Fri, 15 Nov 2013 10:35:00 +0100 https://cncz.science.ru.nl/en/cpk/1056/ <p>For unknown reasons one of the servers had a high load and stopped servicing users. A reboot solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1055/ Tue, 29 Oct 2013 16:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1055/ <p>For unknown reasons the server had a high load and stopped servicing users. A reboot solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1054/ Mon, 28 Oct 2013 13:35:00 +0100 https://cncz.science.ru.nl/en/cpk/1054/ <p>Just like 3 days ago, the IMAP server got overloaded after noon. It took a reboot to bring the service back in operation. We suspect that our making of a backup-snapshot triggers this and now have disabled the snapshot during working hours.</p> https://cncz.science.ru.nl/en/cpk/1053/ Fri, 25 Oct 2013 13:23:00 +0200 https://cncz.science.ru.nl/en/cpk/1053/ <p>During an extra backup the IMAP server got overloaded. It took a reboot to bring the service back in operation.</p> https://cncz.science.ru.nl/en/cpk/1052/ Wed, 23 Oct 2013 14:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1052/ <p>Yesterday afternoon around 14:30 the <a href="http://www.ru.nl/isc" target="_blank">ISC</a> conducted a seemingly innocent maintenance on the LDAP-server, but immediately after that auth-requests from Radius were no longer serviced. This made it impossible for wireless users to authenticate with their u/s/e number. Users in the realm @science.ru.nl were not affected by this.</p> https://cncz.science.ru.nl/en/cpk/1051/ Tue, 22 Oct 2013 10:55:00 +0200 https://cncz.science.ru.nl/en/cpk/1051/ <p>Tuesday morning around 11 o’clock, there was a <a href="http://www.gelderlander.nl/regio/rijk-van-nijmegen/stroomstoringen-in-malden-en-nijmegen-1.4062999" target="_blank">short power dip for RU/UMCN</a>. This power dip, that is not listed on the <a href="http://www.liander.nl/liander/storingen_onderbrekingen/actueel_storingsoverzicht.htm?postcode=6525ED&amp;page=1&amp;ordering=SortDatumVan&amp;skipFlip=&amp;sortPlaats=inactive&amp;sortDatumVan=down&amp;sortDatumTot=inactive&amp;sortTypeOnderbreking=inactive&amp;sortUitgevallenComponenten=inactive&amp;sortOorzaak=inactive&amp;sortEnergiesoort=inactive&amp;sortGetroffenAfnemers=inactive&amp;toonAlles=false&amp;invoerDatumStart=22-10-2013&amp;invoerDatumEind=22-10-2013&amp;energiesoort=E&amp;energietype=option3" target="_blank">power interruption website</a>, made all systems restart that were not on emergency power. Because only the network switches in Huygens wing 1 and 7 are on emergency power, a lot of users lost their connection to the network, including wireless and IP-telephony, for about 5 minutes. Apparatus that restarted faster than the network, might have needed an extra restart to restore the connection to the network. A department reported that a departmental printer did not survive the power dip.</p> https://cncz.science.ru.nl/en/cpk/1071/ Sat, 12 Oct 2013 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1071/ <p>Update: we changed the configuration of the network switchports of the KM’s, which resolves the problem. This was necessary, because the KM’s do not try hard enough to make a connection with the SMTP-server.</p> <p>Update: an alternative is scanning to a USB stick. Log in at the MFP with the scan-pin, put a document in the feeder or on the document glass, select <code>Scan</code> and then plug the USB stick into the USB port on the right side of the MFP , on the top side. After a few seconds the MFP recognizes the USB stick and presents the choice “Save a document to external memory”. Choose <code>OK</code> and press <code>Start</code>. See also [RU <a href="http://www.ru.nl/publish/pages/687597/uitrol-mf-scan.pdf" target="_blank">http://www.ru.nl/publish/pages/687597/uitrol-mf-scan.pdf</a> manual] on the <a href="http://www.ru.nl/ictservicecentrum/medewerkers/werkplek-campus/uitrol/" target="_blank">RU-page about the MFP’s</a>.</p> https://cncz.science.ru.nl/en/cpk/1050/ Thu, 10 Oct 2013 00:04:00 +0200 https://cncz.science.ru.nl/en/cpk/1050/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1049/ Tue, 01 Oct 2013 15:18:00 +0200 https://cncz.science.ru.nl/en/cpk/1049/ <p>The printserver crashed again, for yet unknown reasons. A reboot of the machine solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1048/ Mon, 30 Sep 2013 13:46:00 +0200 https://cncz.science.ru.nl/en/cpk/1048/ <p>The server crashed. A reboot of the machine solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1047/ Fri, 27 Sep 2013 11:02:00 +0200 https://cncz.science.ru.nl/en/cpk/1047/ <p>The printserver crashed. A reboot of the machine solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1058/ Wed, 25 Sep 2013 17:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1058/ <p>The motherboard of the printer had to be replaced. Because there is no maintenance contract for this old printer and spare parts were hard to get, repair has taken a long time.</p> https://cncz.science.ru.nl/en/cpk/1044/ Tue, 24 Sep 2013 11:41:00 +0200 https://cncz.science.ru.nl/en/cpk/1044/ <p>The printserver crashed. A reboot of the machine solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1046/ Mon, 23 Sep 2013 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1046/ <p>The availability of sound in Windows appeared to be depending on the state in which Linux had left it. Therefore the sound in Linux on dual boot PC’s has been disabled, in order to have it available on Windows. Sound under Linux will be available again once the HP Compaq Elite 8300 AiO harware has been phased out.</p> https://cncz.science.ru.nl/en/cpk/1043/ Tue, 17 Sep 2013 16:25:00 +0200 https://cncz.science.ru.nl/en/cpk/1043/ <p>The fileserver failed to see its disks. A reboot of the machine solved the problem.</p> https://cncz.science.ru.nl/en/cpk/1042/ Mon, 16 Sep 2013 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1042/ <p>The fileserver failed the regular Monday morning reboot. Only after a rescue boot and a removal of all snapshots rebooting the machine worked.</p> <p>Affected disks:</p> <p><code>arb botgarden ccs4 excienwi exoarchief FIT gi1 gipsy isis-dhz</code> <code>itt iwwr1 leonardo mercator micord molspec olcwis ons pvs</code> <code>ratio tzacad vb vscxray WiskundeToernooi zeegras</code></p> https://cncz.science.ru.nl/en/cpk/1041/ Fri, 06 Sep 2013 10:13:00 +0200 https://cncz.science.ru.nl/en/cpk/1041/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1039/ Wed, 04 Sep 2013 12:22:00 +0200 https://cncz.science.ru.nl/en/cpk/1039/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1038/ Tue, 03 Sep 2013 13:12:00 +0200 https://cncz.science.ru.nl/en/cpk/1038/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1040/ Mon, 02 Sep 2013 13:33:00 +0200 https://cncz.science.ru.nl/en/cpk/1040/ <p>The b/w tuned Konica Minolta printer/MFP pr-hg-00-002 suddenly printed in color. C&amp;CZ refunded the student’s budget and stopped the printer until KM had corrected the settings.</p> https://cncz.science.ru.nl/en/cpk/1037/ Mon, 02 Sep 2013 04:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1037/ <p>The DNS server on ns1.science.ru.nl didn’t start after the reboot, due to a syntax error in one of the zone files. When this had been corrected, it started without problems.</p> https://cncz.science.ru.nl/en/cpk/1034/ Thu, 29 Aug 2013 07:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1034/ <p>Affected shares:</p> <p><code>arb botgarden ccs4 excienwi exoarchief FIT gi1 gipsy isis-dhz</code> <code>itt iwwr1 leonardo mercator micord molspec olcwis ons pvs</code> <code>ratio tzacad vb vscxray WiskundeToernooi zeegras</code></p> https://cncz.science.ru.nl/en/cpk/1035/ Thu, 29 Aug 2013 05:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1035/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1033/ Thu, 22 Aug 2013 22:38:00 +0200 https://cncz.science.ru.nl/en/cpk/1033/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1032/ Thu, 22 Aug 2013 01:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1032/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1036/ Mon, 12 Aug 2013 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1036/ <p>From August 12 the wireless network in the Science buildings is being replaced. The new IP numbers appear to not be able to connect directly to BASS. We expect that this will be changed soon.</p> https://cncz.science.ru.nl/en/cpk/1031/ Thu, 01 Aug 2013 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1031/ <p>An error in distributing a Group Policy Object (GPO) caused roaming profiles to fail for the last week. The start date/time of the problem is unknown, This is an estimate.</p> https://cncz.science.ru.nl/en/cpk/1030/ Mon, 15 Jul 2013 11:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1030/ <p>Today lilo3 appeared to have an incorrectly chosen IP number. A reboot fixed this.</p> https://cncz.science.ru.nl/en/cpk/1029/ Mon, 01 Jul 2013 23:50:00 +0200 https://cncz.science.ru.nl/en/cpk/1029/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1027/ Thu, 27 Jun 2013 17:48:00 +0200 https://cncz.science.ru.nl/en/cpk/1027/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1028/ Thu, 27 Jun 2013 17:48:00 +0200 https://cncz.science.ru.nl/en/cpk/1028/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1026/ Mon, 24 Jun 2013 09:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1026/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1025/ Sun, 23 Jun 2013 15:54:00 +0200 https://cncz.science.ru.nl/en/cpk/1025/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1024/ Mon, 17 Jun 2013 04:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1024/ <p>The DNS server on ns1.science.ru.nl didn’t start after the reboot, due to a syntax error in one of the zone files. When this had been coreected, it started without problems.</p> https://cncz.science.ru.nl/en/cpk/1023/ Wed, 12 Jun 2013 13:45:00 +0200 https://cncz.science.ru.nl/en/cpk/1023/ <p>The IMAP server had a problem, which made a reboot necessary.</p> https://cncz.science.ru.nl/en/cpk/1022/ Thu, 06 Jun 2013 22:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1022/ <p>On Thursday June 6th from 10:00 pm the wireless networks ru-wlan and eduroam will be unavailable for at least 2 hours. All existing connections will be cut off. The wireless network Science however will not be effected and will be kept available.</p> https://cncz.science.ru.nl/en/cpk/1045/ Mon, 03 Jun 2013 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1045/ <p>The central BASS RU environment has been updated last weekend. Part of this upgrade was a change of the web address of the second logon screen, as announced on our <a href="https://cncz.science.ru.nl/en/howto/bass/">BASS</a> page. This morning it became clear that access to the second logon screen via the Port Forwarder didn’t work anymore. Therefore the UCI rolled back the change of the second logon screen. This means that AFTER LOGGING ON TO THE PROXY at <a href="https://admin.ru.nl/" target="_blank">https://admin.ru.nl/</a> BASS is available again via <a href="https://bassruap01.uci.ru.nl:8010/OA_HTML/AppsLocalLogin.jsp" target="_blank">https://bassruap01.uci.ru.nl:8010/OA_HTML/AppsLocalLogin.jsp</a></p> https://cncz.science.ru.nl/en/cpk/1021/ Fri, 24 May 2013 03:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1021/ <p>During the renewal of the <a href="https://openid.science.ru.nl/" target="_blank">OpenID</a> server a configuration error was made. When users reported problems logging in, we started searching for the origin of problem. When it was found, it could easily be corrected and the server could be restarted with the correct configuration.</p> https://cncz.science.ru.nl/en/cpk/1020/ Tue, 21 May 2013 17:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1020/ <p>The fileserver crashed. After a reboot everything was back to normal.</p> https://cncz.science.ru.nl/en/cpk/1018/ Mon, 29 Apr 2013 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1018/ <p>The fileserver failed to reboot during the regular Monday morning shutdown schedule. It was possible to gain access to the system console only after having removed all power from the chassis. Snapshots were removed using the rescue reboot but rebooting the machine resulted in a faulty filesystem. We were able to boot the system after all filesystems had been checked offline. These actions resulted in a unusual long downtime.</p> https://cncz.science.ru.nl/en/cpk/1019/ Mon, 29 Apr 2013 04:08:00 +0200 https://cncz.science.ru.nl/en/cpk/1019/ <p>Problem: Crash due to defective disk Solution: Deactivated disk using hot spare and reboot</p> https://cncz.science.ru.nl/en/cpk/1017/ Mon, 22 Apr 2013 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1017/ <p>The fileserver failed the regular Monday morning reboot. Only after a rescue boot and a manual removal of all snapshots rebooting the machine worked.</p> https://cncz.science.ru.nl/en/cpk/1016/ Mon, 08 Apr 2013 08:55:00 +0200 https://cncz.science.ru.nl/en/cpk/1016/ <p>Problem: Stack: Crash due to failing disk. Solution: Deactivated disk using hot spare</p> https://cncz.science.ru.nl/en/cpk/1015/ Mon, 08 Apr 2013 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/1015/ <p>Pile did not shutdown properly during weekly reboot due to a kernel panic. Solution: Executed power-cycle of the system</p> https://cncz.science.ru.nl/en/cpk/1014/ Tue, 19 Mar 2013 11:45:00 +0100 https://cncz.science.ru.nl/en/cpk/1014/ <p>Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.</p> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1012/ Mon, 18 Mar 2013 06:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1012/ <p>Was waiting for interactive input after reporting a warning (^d)</p> https://cncz.science.ru.nl/en/cpk/1013/ Fri, 15 Mar 2013 17:30:00 +0100 https://cncz.science.ru.nl/en/cpk/1013/ <p>While performing maintenance (removing a network card) a network cable was not inserted correctly.</p> https://cncz.science.ru.nl/en/cpk/1011/ Wed, 13 Mar 2013 13:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1011/ <p>Yesterday Matlab R2013a has been installed. Today at 13:00 hours many servers started to automatically copy this 5.4 GB to their local disc. Some parts of the network were overloaded by all these copying, which made accessing the network slow for many users. The distribution of this software will now be scheduled to happen over a longer period, primarily outside of working hours.</p> https://cncz.science.ru.nl/en/cpk/1010/ Mon, 04 Mar 2013 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1010/ <p>Monday, March 4th 2013 at 18:00 hours, the number of IP numbers that is available in the FNWI buildings for ru-wlan and Science will be doubled. Because ru-wlan moves to a new range, users of ru-wlan will lose connectivity for at most 15 minutes. There was already a plan to replace ru-wlan and Science within the FNWI buildings by the RU-wide Eduroam and ru-wlan, but the wireless network usage has grown so fast that we can not wait for this plan to be realized. Last week some wireless users at times could not even get an IP address, although the lease time had been brought down to 30 minutes. Therefore this temporary measure became necessary on such short notice.</p> https://cncz.science.ru.nl/en/cpk/1009/ Mon, 18 Feb 2013 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1009/ <p>On Monday feb 18 at 6:00 pm there will be some maintenance at the wireless network which will effect the following locations at Toernooiveld:</p> <p><code>FNWI cellar A1</code> <code>FEL</code> <code>Huygens: Library of Science, terrace behind Huygens, cantine, room HG-1.132</code> <code>KDV1 en KDV2</code> <code>Linnaeus building</code> <code>Logistic Centre</code> <code>Mercator I</code> <code>Mercator II, ground floor and 7nd floor</code> <code>Mercator III, 2nd floor</code> <code>Transitorium FNWI (ACSW and FELIX)</code> <code>UBC</code></p> <p>We expect the service will be completely available again within 30 minutes.</p> https://cncz.science.ru.nl/en/cpk/1008/ Thu, 14 Feb 2013 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1008/ <p>The last few days three Science users have supplied their Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam. This time they even used a fake copy of the horde Science webmail website. The big differences with the real horde Science webmail website are:</p> <ul> <li>the URL is not within science.ru.nl</li> <li>the connection is not a secure https connection, there is no lock</li> <li>the username and password do not arrive at C&amp;CZ servers, but in the hands of Internet criminals.</li> </ul> <p>PLEASE: do not naively click on a link in an e-mail!</p> https://cncz.science.ru.nl/en/cpk/1007/ Mon, 28 Jan 2013 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1007/ <p>On Monday, January 28th 2013 at 8:00 am, one of the servers that is being used by the wireless network of the RU, will be replaced. This replacement will affect you as a user of the wireless networks ru-wlan and eduroam: There will appear a new certificate when connecting. You can just accept this, after which the connection should work. If this appears not to be the case, then it’s best that you remove your old Eduroam- respectively your old RU-WLAN settings first to activate the new connection .</p> https://cncz.science.ru.nl/en/cpk/1006/ Wed, 16 Jan 2013 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1006/ <p>Because the file server crashed, it had to be rebooted.</p> https://cncz.science.ru.nl/en/cpk/1005/ Fri, 14 Dec 2012 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1005/ <p>Older Fedora desktop PC’s may experience startup problems after an upgrade of one of our LDAP servers. A fix is available and has been applied. If you still encounter this problem, please contact C&amp;CZ.</p> https://cncz.science.ru.nl/en/cpk/1004/ Fri, 16 Nov 2012 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/1004/ <p>Horde webmail again appeared to be misused for sending spam. This could happen because a naive user gave the Science password to phishers/spammers. After first stopping horde, early Friday morning we disabled the account of the naive user and restarted horde. Saturday morning it appeared that this short spam-outbreak had caused administrators of hotmail.com to add our mail server to their blacklist. Therefore we switched the IP-number of this mail server Saturday morning.</p> https://cncz.science.ru.nl/en/cpk/1003/ Wed, 24 Oct 2012 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1003/ <p>Because the file server refuses to accept a spare disk, it needs a reboot.</p> https://cncz.science.ru.nl/en/cpk/1002/ Mon, 22 Oct 2012 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1002/ <p>At the moment, we are solving the problem.</p> https://cncz.science.ru.nl/en/cpk/1001/ Thu, 18 Oct 2012 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1001/ <p>During the night of wednesday on thursday a power outage resulted in a network outage in the basement computing facilities. The power was restored to the network equipment using a bypass thus circumventing the UPS at about 09:15. Further checks implied that most servers had not become powerless so that most services became automatically available again. Network drivers on “bundle” had to be restarted in order to get access to home directories for a large number of users. Furthermore, several websites had to be restarted which made it possible for PC’s to boot properly. During the day, an unrelated issue with the RAID storage of “plus” has been fixed as well granting access to the following network shares: sofie, ams*, molchem, mb*, encapson, milkun4, snn, neuropi, digicd. carta, … Since wireless devices were unable to acquire IP addresses, i.e. gain access to the network, a split-brain situation was diagnosed within the DHCP service which was resolved around 13:00.</p> https://cncz.science.ru.nl/en/cpk/1000/ Fri, 12 Oct 2012 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/1000/ <p>Next Friday morning, the home server “pile” will be rebooted. There are problems with the <a href="https://cncz.science.ru.nl/en/howto/backup/">snapshots</a>, which could make a reboot take more time. Therefore we schedule the reboot for early next Friday.</p> https://cncz.science.ru.nl/en/cpk/997/ Tue, 25 Sep 2012 23:05:00 +0200 https://cncz.science.ru.nl/en/cpk/997/ <p>Yesterday evening, horde webmail appeared to be misused for sending spam. This could happen because a naive user gave the Science password to spammers. First we stopped horde. This morning we disabled the account of the naive user and restarted horde.</p> https://cncz.science.ru.nl/en/cpk/995/ Mon, 24 Sep 2012 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/995/ <p>During the weekly reboot (monday mornings), the server got stuck in the BIOS.</p> https://cncz.science.ru.nl/en/cpk/996/ Mon, 24 Sep 2012 06:30:00 +0200 https://cncz.science.ru.nl/en/cpk/996/ https://cncz.science.ru.nl/en/cpk/999/ Wed, 12 Sep 2012 00:00:00 +0200 https://cncz.science.ru.nl/en/cpk/999/ <p>In order to test new software, the <a href="http://www.ru.nl/peage" target="_blank">Peage</a> top-up unit near the Huygens restaurant was switched to maintenance mode. This unit is not used often yet, therefore this wil not have caused problems. Students that wanted to top-up their Peage account, could do that only elsewhere on campus. See the <a href="http://www.ru.nl/peage" target="_blank">http://www.ru.nl/peage</a> Peage website], locations are the halls of the Erasmus, Spinoza and Library buildings.</p> https://cncz.science.ru.nl/en/howto/hardware-werkplekken/ Fri, 17 Aug 2012 14:33:34 +0000 https://cncz.science.ru.nl/en/howto/hardware-werkplekken/ <h2 id="pc-workstation">PC workstation</h2> <p>Everyone interested in buying a PC will be interested in reading the information about the <a href="https://cncz.science.ru.nl/en/howto/huisleverancier-pcs/">default supplier of PCs</a>. C&amp;CZ can help with the <a href="https://cncz.science.ru.nl/en/howto/installeren-werkplek/">installation</a> or do this completely. One can choose between <a href="https://cncz.science.ru.nl/en/howto/windows-beheerde-werkplek/">MS-Windows</a> and <a href="https://cncz.science.ru.nl/en/howto/unix/">Ubuntu Linux</a>. Information about the <a href="https://cncz.science.ru.nl/en/howto/reparaties/">repair procedure</a> is also available.</p> https://cncz.science.ru.nl/en/cpk/994/ Tue, 24 Jul 2012 07:00:00 +0200 https://cncz.science.ru.nl/en/cpk/994/ <p>Next Tuesday morning, the home server “pile” will be replaced by a new, more powerful server. Because the data have been synchronized with the new server, there will not be much downtime.</p> https://cncz.science.ru.nl/en/cpk/993/ Tue, 24 Jul 2012 07:00:00 +0200 https://cncz.science.ru.nl/en/cpk/993/ <p>The downtime below has been postponed, because we had a few questions on the new server, that could not be answered in time. To be continued…</p> <p>Next Tuesday morning, the home server “pile” will be replaced by a new, more powerful server. Because the data have been synchronized with the new server, there will not be much downtime. The new server should be very dependable: hardware <a href="http://en.wikipedia.org/wiki/RAID#RAID_6_replacing_RAID_5_in_enterprise_environments" target="_blank">RAID-6</a>, double processors and power supplies and a 5-year support contract from the supplier. The performance has improved, e.g. by using hardware RAID with a 1 GB <a href="http://serverfault.com/questions/65096/battery-backed-write-cache" target="_blank">write cache with battery backup</a>.</p> https://cncz.science.ru.nl/en/cpk/992/ Thu, 12 Jul 2012 09:09:00 +0200 https://cncz.science.ru.nl/en/cpk/992/ <p>This morning, horde webmail appeared to be misused for sending spam. This could happen because naive users gave their Science password to spammers. After we found out who the users were and had them change their password, we decide to also replace a defective cpu fan. Therefore also Mailman mailing lists will be down from 13:00 to 14:00 hours.</p> https://cncz.science.ru.nl/en/cpk/991/ Wed, 11 Jul 2012 03:08:00 +0200 https://cncz.science.ru.nl/en/cpk/991/ <p>This morning, users reported that mail from smtp.science.ru.nl to hotmail users was being bounced by hotmail. We have tried to let the hotmail administrators change this fast, but when this took too long, we changed the IP-number of our smtp-server.</p> https://cncz.science.ru.nl/en/cpk/990/ Fri, 22 Jun 2012 17:03:00 +0200 https://cncz.science.ru.nl/en/cpk/990/ <p>A hardware failure of a boot disk of the fileserver stack was reported Friday morning June 22. We decided to repair this after working hours. Thus at approximately 17:00 the defective boot disk was removed from the machine and replaced by a spare one. Enabling the disk, making it bootable, restoring file systems and rebooting the machine (after removing all snapshots) took a lot of time. When this was resolved Friday evening, the NFS/SMB fileservice was not active on the mounted filesystems. It took a reboot Sunday evening to resolve all problems.</p> https://cncz.science.ru.nl/en/cpk/989/ Thu, 21 Jun 2012 14:12:00 +0200 https://cncz.science.ru.nl/en/cpk/989/ <p>A hardware failure of the server poly was reported at 2012-06-21 14:12. After a restart of the machine, it stopped working again. No more recoveries were attempted and an identical spare machine was outfitted with the disks from the defective server. Disks had to be synchronized before making the machine available again.</p> https://cncz.science.ru.nl/en/cpk/988/ Thu, 07 Jun 2012 13:45:00 +0200 https://cncz.science.ru.nl/en/cpk/988/ <p>A power failure in a rack in a server room brought some C&amp;CZ servers down. After less than two hours all problems were dealt with. Affected systems ware mainly: postvak (Science mail server), bundle (user homedisk), heap/stack (network discs), resser/kookpunt/brievenbus/rustug (mail transport smtp servers)</p> https://cncz.science.ru.nl/en/cpk/987/ Fri, 20 Apr 2012 17:00:00 +0200 https://cncz.science.ru.nl/en/cpk/987/ <p>A defective hard disc has been replaced in a server, but the server needs to be rebooted to ensure that this is reboot proof. The MySQL database of roughly 70 websites will therefore be down for a short time. Since this server also provides the Kerberos authentication for Linux clients, Linux clients might encounter service interruptions during a short period.</p> https://cncz.science.ru.nl/en/cpk/998/ Tue, 20 Mar 2012 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/998/ <p>The <a href="http://www.ru.nl/uci" target="_blank">UCI network management</a> reports that at this moment the <a href="http://www.ru.nl/gdi/voorzieningen/campusbrede-systemen/eduroam/" target="_blank">incoming</a> version of <a href="http://www.eduroam.nl" target="_blank">Eduroam</a> doesn’t work for iPhone/iPad/iPod. A solution is being worked upon. Eduroam incoming means that one uses the wireless network of a remote institute, with authentication (login/password) being checked by RU or Science.</p> https://cncz.science.ru.nl/en/cpk/986/ Thu, 07 Jul 2011 13:00:00 +0200 https://cncz.science.ru.nl/en/cpk/986/ <p>Thursday July 7, around 13.00 hours the server “plenty” could not be reached. Because this server serves the “xpsoftware” share for the <a href="https://cncz.science.ru.nl/en/howto/windows-beheerde-werkplek/">Managed Windows PC’s</a>, all these PC’s had a problem. After the server was restarted and the disks had been checked, it was available again at 14:26.</p> https://cncz.science.ru.nl/en/cpk/985/ Sun, 03 Jul 2011 09:00:00 +0200 https://cncz.science.ru.nl/en/cpk/985/ <p>In order to improve the cooling of a server room, we plan to move three racks of Science servers a few meters on Sunday morning, July 3. We will have to switch off a lot of servers temporarily. Therefore several services will be unavailable some time starting July 3, 09:00 hours. We expect the downtime will last until 10:00 hours for servers with a lot of different users. The cn compute cluster will probably be fully operational again at 12:00 hours.</p> https://cncz.science.ru.nl/en/cpk/984/ Wed, 22 Jun 2011 10:55:00 +0200 https://cncz.science.ru.nl/en/cpk/984/ <p>This morning, in the network hub for Huygens South a UPS (battery power supply) went down, which made a set of network switches loose power. Because of this, users in Huygens wing 1 and spin-off companies lost their connection to the network. After bypassing the UPS, everything was up and running again at 11:30. We are still searching for the exact origin of this outage.</p> https://cncz.science.ru.nl/en/cpk/981/ Mon, 07 Mar 2011 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/981/ <p>You can’t reach certain fixed phones at the university right now, mobile phones and Skype do work ok though.</p> https://cncz.science.ru.nl/en/cpk/983/ Sat, 12 Feb 2011 07:00:00 +0100 https://cncz.science.ru.nl/en/cpk/983/ <p>A backup cooling system will be installed in our main computer room. Therefore the air conditioning system must be switched off, which means that most of the computer facilities in this room must be shut down. This includes the cluster nodes cn00 through cn53 and many of the web- and file- (network share) servers. It is advised to expect a very limited service level. We will try to keep all home directories and the mail system available. For detailed information about the impact please <a href="https://cncz.science.ru.nl/en/howto/contact/">contact</a> C&amp;CZ.</p> https://cncz.science.ru.nl/en/cpk/982/ Mon, 24 Jan 2011 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/982/ <p>Printer lp5 has been moved to HG00.089. You can’t use this printer at the moment, there’s a problem with the power supply unit.</p> https://cncz.science.ru.nl/en/howto/thunderbird-add-ons/ Wed, 09 Apr 2008 22:21:43 +0000 https://cncz.science.ru.nl/en/howto/thunderbird-add-ons/ <ul> <li>abcTajpu <ul> <li>Copy Sent to Current</li> <li>Folderpane Tools</li> <li>GMailUI</li> <li>Lightning</li> <li>Provider for Google Calendar</li> <li>New Mail Icon</li> <li>Nostalgy</li> <li>Quicktext</li> <li>Signature Switch</li> <li>ThunderBrowse</li> <li>Xnote</li> <li>MailClassifier</li> <li>Tag bar</li> <li>Priority Switcher</li> <li><a href="http://journal.mozdev.org/mailtweak.html" target="_blank">MailTweak</a></li> <li>Mail Redirect</li> <li>View Headers Toggle Button</li> <li>Display Mail User Agent Extension</li> <li>FolderFlags</li> </ul> </li> </ul> <p>More add-ons can be found at <a href="https://addons.mozilla.org/en-US/thunderbird/" target="_blank">addons.mozilla.org</a>.</p> https://cncz.science.ru.nl/en/howto/email-vakantie/ Wed, 09 Apr 2008 22:19:36 +0000 https://cncz.science.ru.nl/en/howto/email-vakantie/ <h2 id="automatically-respond-to-incoming-email">Automatically respond to incoming email</h2> <p>The settings to automatically respond to incoming email can be changed at the <a href="http://dhz.science.ru.nl" target="_blank">Do-It-Yourself website</a>.</p> <p>If a (vacation) message is sent for incoming email, each sender of a mail that is directly sent to you (no BCC:), gets only once a mail with the text you have specified.</p> <p>If one does not want to send automatic replies anymore, the (vacation) message is saved for later use.</p> https://cncz.science.ru.nl/en/cpk/0/ Mon, 01 Dec 1997 00:00:00 +0100 https://cncz.science.ru.nl/en/cpk/0/ <p>2 fast-wide 9GB scsi disks are attached to the wnhome wide-scsi controller plugged in:</p> <ul> <li>1 for NetPCs (replacing <code>/vol/netpc</code> from <code>wn0</code>)</li> <li>1 as staging disk for Amanda (new backup software)</li> </ul> <div><svg width="0" height="0" display="none" xmlns="http://www.w3.org/2000/svg"><symbol id="tip-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.967-111.033 248-248 248S8 392.967 8 256 119.033 8 256 8s248 111.033 248 248zM227.314 387.314l184-184c6.248-6.248 6.248-16.379 0-22.627l-22.627-22.627c-6.248-6.249-16.379-6.249-22.628 0L216 308.118l-70.059-70.059c-6.248-6.248-16.379-6.248-22.628 0l-22.627 22.627c-6.248 6.248-6.248 16.379 0 22.627l104 104c6.249 6.249 16.379 6.249 22.628.001z"/></symbol><symbol id="note-notice" viewBox="0 0 512 512" preserveAspectRatio="xMidYMid meet"><path d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zm-248 50c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 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12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z"/></symbol></svg></div><div class="notice info" > <p class="first notice-title"><span class="icon-notice baseline"><svg><use href="#info-notice"></use></svg></span>Info</p> https://cncz.science.ru.nl/en/howto/labservant-managers/ Mon, 01 Jan 0001 00:00:00 +0000 https://cncz.science.ru.nl/en/howto/labservant-managers/ <table> <tr> <th>Institute/Service</th> <th>Department</th> <th>Lab Manager(s)</th> </tr> <tr> <td colspan="3"><strong>Donders Centre for Neuroscience</strong></td> </tr> <tr> <td>DCN</td> <td>Section Neurobiology</td> <td>Debbie Tilburg-Ouwens</td> </tr> <tr> <td>DCN</td> <td>Section Neurophysics</td> <td>Debbie Tilburg-Ouwens</td> </tr> <tr> <td colspan="3"><strong>High Field Magnet Laboratory & FELIX</strong></td> </tr> <tr> <td>HFML/FELIX</td> <td>FELIX Facility</td> <td>Jonathan Martens<br/>Britta Redlich</td> </tr> <tr> <td>HFML/FELIX</td> <td>High Field Magnet Laboratory</td> <td>Hans Engelkamp</td> </tr> <tr> <td colspan=3><strong>Institute for Molecules and Materials</strong></td> </tr> <tr> <td>IMM</td> <td>Analytical Chemistry & Chemometrics</td> <td>Joris Meurs</td> </tr> <tr> <td>IMM</td> <td>Applied Materials Science</td> <td>Peter Mulder</td> </tr> <tr> <td>IMM</td> <td>Biophysical Chemistry</td> <td>Frank Nelissen<br/>Amrah Weijn</td> </tr> <tr> <td>IMM</td> <td>Biomolecular Chemistry</td> <td>Amrah Weijn<br/>Frank Nelissen</td> </tr> <tr> <td>IMM</td> <td>Molecular and Laser Physics</td> <td>Andre van Roij</td> </tr> <tr> <td>IMM</td> <td>Molecular Chemistry Cluster</td> <td>Samuel Bosma<br/>Jan Dommerholt<br/> </tr> <tr> <td>IMM</td> <td>NMR Research Centre</td> <td>Ruud Aspers</td> </tr> <tr> <td>IMM</td> <td>Physical Chemistry of Soft Matter</td> <td>Ruth Croters</td> <tr> <td>IMM</td> <td>Scanning Probe Microscopy</td> <td>Henning von Allwörden</td> </tr> <tr> <td>IMM</td> <td>Solid State Chemistry</td> <td>Erik de Ronde<br/> Paul Tinnemans </td> </tr> <tr> <td>IMM</td> <td>Spectroscopy of Cold Molecules</td> <td>Andre van Roij</td> </tr> <tr> <td>IMM</td> <td>Utlrafast Spectroscopy of Correlated Materials</td> <td>Chris Berkhout</td> </tr> <tr> <td colspan="3"><strong>Radboud Institute for Biological and Environmental Sciences</strong></td> </tr> <tr> <td>RIBES</td> <td>Ecology</td> <td>Niels Wagemaker<br/>Annemiek Tiekstra</td> </tr> <tr> <td>RIBES</td> <td>Environmental Sciences</td> <td>Martien Graumans<br/>Katinka van de Pas-Schoonen</td> </tr> <tr> <td>RIBES</td> <td>Experimental Garden and Genebank</td> <td>...</td> </tr> <tr> <td>RIBES</td> <td>Microbiology</td> <td>Katinka van de Pas-Schoonen<br/>Rob de Graaf</td> </tr> <tr> <td>RIBES</td> <td>Plant & Animal Biology</td> <td>Jan Zethof<br/>Daan van den Brink</td> </tr> <tr> <td>RIBES</td> <td>RIBES Radio Lab</td> <td>Jan Zethof</td> </tr> <tr> <td colspan="3"><strong>Educational Institutes</strong></td> </tr> <tr> <td>OBW</td> <td>Education Labs Biosciences</td> <td>Lydia Ketelaars<br/> Guus Middelbeek</td> </tr> <tr> <td>OMW</td> <td>Education Labs Molecular Sciences</td> <td>Tom Bloemberg<br/> Luuk van Summeren </td> </tr> <tr> <td>ONS</td> <td>Education Labs Physics</td> <td><br>Luuk van Summeren</td> </tr> <tr> <td colspan=3><strong>Radboud Institute for Molcular Life Sciences</strong></td> </tr> <tr> <td>RIMLS</td> <td>Molecular Biology</td> <td>Anita Kaan</td> </tr> <tr> <td>RIMLS</td> <td>Molecular Developmental Biology</td> <td>Siebe van Genesen</td> </tr> <tr> <td>RIMLS</td> <td>Proteomics and Chromatin Biology</td> <td>Pascal Jansen</td> </tr> <tr> <td colspan=3><strong>Supporting Services</strong></td> </tr> <tr> <td>GI</td> <td>General Instrumentation</td> <td>Sebastian Krosse</td> </tr> <tr> <td>Housing & Logistics</td> <td>Logistics Centre</td> <td>Ruud Patings<br/>Patrick van de Vooren<br/>Nicky Boschman</td> </tr> <tr> <td>TeCe</td> <td>Techno Centre</td> <td>Luuk van Summeren</td> </tr> </table>