CPK

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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#1442 Elabftw major upgrade

We will upgrade Elabftw today between 11:00 and 17:00. Both elabftw.science.ru.nl and bigchemistryeln.nl are affected, and some downtime is expected. This is a major version upgrade, not a point release. If the upgrade does not go well, we will restore a backup and continue with Elabftw version 5 for the next couple of weeks.

Updated Oct 8, 2026

Resolved

March 2016

CPK#1172 Hardware failure webserver

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. Affected services: 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

Updated May 5, 2026

CPK#1171 Gitlab upgrade

Because of an upgrade of gitlab to version 8.5.7, the GitLab service was offline for a while.

Updated May 8, 2026

CPK#1169 emoe stuck at reboot

At reboot time some file system (/opt) was not recognized, resulting in a kernel panic. Solutio: Reboot

Updated May 5, 2026

CPK#1170 Server isolator lacking private class networks

For yet unknown reasons the private class network interfaces where incorrectly numbered and activated Solution: Reboot

Updated May 5, 2026

February 2016

CPK#1168 Gitlab upgrade

Because of an upgrade of gitlab to version 8.5.1, the GitLab service will be offline for a while.

Updated May 8, 2026

CPK#1167 Virtual servers problem

Because of automated updates, Several virtual host had become unreachable. Server vos: gitlab3, bfacdc04, smtp2, redmine2 Server wolf: smtp1, bfacdc03, est2 Rebooted vos and wolf.

Updated May 5, 2026

CPK#1166 miii server problem

For unknown reasons, the miii mail server was unavailable. Rebooted.

Updated May 5, 2026

CPK#1165 IMAP mail server problem

For unknown reasons, the IMAP mail server was unavailable. The service cyrus-imapd was not correctly started. Starting this service service cyrus-imapd start solved the problem.

Updated May 5, 2026

CPK#1164 IMAP mail server problem

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.

Updated May 5, 2026

CPK#1163 Fileserver problems

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.

Updated May 5, 2026