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#1443 PHP Security update

A major security vulnerability in PHP was discovered. As of 22 October 2026, our systems have been patched with the new releases. Status as of 2026-10-21 11:00:00 CET 21 October 2026 at 16:00 CEST the PHP team will release new versions, but exploitation attempts are already happening. There is no mitigation, all PHP sites that use “multi-part” file uploads are vulnerable. Only bringing sites off-line will help. We know that Wordpress sites are affected. So we are taking down all Wordpress sites that we host until an updated PHP version is released. ...

Updated Oct 23, 2026

Resolved

August 2024

CPK#1373 e-mail delivery issues

Recently we have received and confirmed issues with delivering e-mail to certain domains, so far: 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 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. ...

Updated May 5, 2026

July 2024

CPK#1372 Science VPN problems

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 EduVPN from SURF.

Updated May 5, 2026

June 2024

CPK#1371 Email sent to too many people

We apologize for the inconvenience, but due to a software error, an (end date notification email)[/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.

Updated Oct 8, 2026

CPK#1370 ldap services down

Science LDAP services are all unavailable, our radius service depends on this, so this also doesn’t work. The TLS certificate has expired, after renewing the certificate and restarting the service it works again.

Updated May 5, 2026

CPK#1369 Network shares of fileserver bushel could not be mounted login servers and cluster nodes

Due to a configuration error on the fileserver bushel, the NFS process did not run after a reboot. After correcting this error, the NFS service has been restarted.

Updated May 5, 2026

CPK#1368 DHCP broken in a part of the datacenter

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. We tried setting up dhcp servers within the picos network, but this didn’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. ...

Updated May 5, 2026

April 2024

CPK#1367 license server down

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.

Updated May 5, 2026

CPK#1366 license server down

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.

Updated May 5, 2026

CPK#1365 restore old ceph shares to new locations

Even though we closed CPK #1359, the user’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. The storage will not be cluster based anymore, but single server ZFS with snapshots.

Updated Oct 8, 2026

CPK#1364 Some network shares temporary unavailable

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’re working on making information about network shares readily available on DIY for your reference.

Updated May 5, 2026