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. 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.
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. If you login to dhz.science.ru.nl you can find your home volume path, for moved users this will look like \\306a2a9df234234123123523c22054dfaf9.home.science.ru.nl\loginname This path will not change in the future when we have to replace the home servers again....
The latest version of Matlab, R2025a, is available. The software and license codes are directly available for Science accounts and can be requested by other entitled users by sending mail to the helpdesk. The software can also be found on the install-share. All C&CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2024b/bin/matlab) will be available temporarily. The C&CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures....
As most Science users have enabled their two-factor authentication, we are now going to restrict DIY functionality for accounts without a second factor. If you have not enabled a second factor, you can: Login into DIY Set a password Enable your second factor All other functionally is disabled and will lead to an ‘Insufficient access’ error. In subsequent versions of the DIY software we will (further) hide actions and listing that you will not be able to use....
Lilo7 was running ubuntu 20.04 LTS (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. We have a new lilo9 with Ubuntu 24.04 LTS. We will make this the new lilo on August 1st 2025. Lilo9 will remain available until end of May 2029....
Update 2025-05-20 This has been activated around 11 ‘o clock. On May the 20th we have enabled mandatory multifactor authentication for the following services: DIY web site. Roundcube, for reading mail. SSH from the internet to public servers, like the lilos. Below you can read how you can log in for each service. DIY Enter your Science login name, your password and the TOTP code from your authenticator app....
A new version of Mathematica (14.2.1) has been installed on all C&CZ managed Linux systems, older versions can still be found in /vol/mathematica. When connected wired or wireless on campus or through VPN, the software for Windows, Linux and macOS can be found on the C&CZ Install disc. During the installation you must specify: License server: mathematica.science.ru.nl License: L4601-6478 According to the Mathematica Quick Revision History: “Version 14.2.1 includes critical updates for Chatbook and code captions along with other bug fixes and stability improvements....
The latest version of Maple, Maple2025, for Windows/macOS/Linux can be found on the Install network share and has been installed on C&CZ managed Linux computers. License codes can be requested from C&CZ helpdesk or postmaster.
On the 20th of May 2025 we are enabling 2FA (second-factor-authentication) on the C&CZ services: DIY, Roundcube and SSH on the login servers. In this article you can find information on this roll-out and how to activate 2Fa on your Science account. As mentioned in an earlier news item, we’ve finished the tests and reached the following conclusions: Anyone with a Science account can enable 2FA in DIY using this procedure....
After our previous news message concerning the new implementation of DIY, we are now ready to announce: The new DIY will go live on Thursday the 20th of March. The previous DIY server will be kept running on https://prev.dhz.science.ru.nl. If there is are things that work in the old one, but not in the new one, please let us know. The old DIY will be turned off on the first the 11th of April 2025....