CPK

Service interruptions

A CPK is C&CZ’s way of reporting a problem or service interruption. Follow the mailing list or RSS feed, and check the service interruptions page for live status updates.

A CPK is how C&CZ reports a problem or service interruption. We publish one when something goes wrong, when we need to do planned maintenance, or when we want to let you know about something that affects the services we run.

Note

What’s a CPK? CPK is short for the Dutch C&CZ Probleem Kaart — C&CZ problem card. The name is simply how we’ve always done it, and it has stuck with us ever since.

How to follow CPK messages

CPK messages are first sent to the CPK mailing list — you can (un)subscribe there. You can also follow the service interruption messages via RSS.

When a CPK takes longer to resolve, we publish updates on the service interruptions page.

University-wide interruptions

For Radboud University-wide service interruptions, see meldingen.ru.nl.

CPK#1449 E-mail receiving and deliverability problems

Both inbound and outbound e-mail from the Science domain cannot be received nor delivered due to an upstream issue at Microsoft. Unfortunately, our infrastructure currently relies on spam filtering (“EOP”); the same system the Radboud University relies on for @ru.nl addresses. We’re monitoring the situation, but due to this setup, we cannot give an estimate of a fix. As a temporary workaround, both postmaster@science.ru.nl and helpdesk@science.ru.nl should be reachable from within the Science domain, and from external, non-Microsoft e-mail domains. ...

Resolved

May 2025

CPK#1389 Servers unreachable

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. ...

CPK#1388 /vol/astro2 and /vol/astro5 unavailable

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.

CPK#1387 /vol/astro6 and /vol/astro7 unavailable

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. Last time this happend it took 24 hours to complete

April 2025

CPK#1386 Gitlab/Mattermost/Pages offline after package updates

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.

CPK#1385 DHCP on 25Gbit not working

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.

January 2025

CPK#1384 ubuntu 20 docker broken

A package upgrade broke the internal networking on our ubuntu 20.04 docker container VMs. Internal name resolution does not work anymore.

December 2024

CPK#1383 lilo7 access with managed SSH keys

We have updated the authentication process for login server lilo7 (lilo7.science.ru.nl) as part of a test. As of now, your ~/.ssh/authorized_keys file on lilo7 is ignored. This change is designed to prevent bad actors from easily gaining persistent access. The good news is that we can now grant access to lilo7 from outside the previously very restricted IP ranges. To gain access from a new IP range, you will need to provide us with your public SSH key and the IP range you will be connecting from. ...

November 2024

CPK#1382 Science services behind eduVPN

De following Science services will be placed behind eduVPN. This means if you want to have continued access, you must use this VPN. De volgende Science services worden achter eduVPN gezet. DHZ/DIY SMTP (mail sending) LILOs Webmail If you have questions are experience problems with setting up eduVPN, please contact our helpdesk.

CPK#1381 Science VPN offline with immediately effect

Due to circumstances we are forced to shut the Science VPN with immediately effect. See this news article where we previously said this would happen on December the 1st. If you have questions are experience problems with setting up EduVPN, please contact our helpdesk.

CPK#1380 rainloop discontinued

The webmail interface called “Rainloop” has been permanently shut down, due to the upstream project not being maintained anymore. We don’t have the resources to fix security issues or take over the open source project ourselves.