CPK messages are initially sent to the CPK mailing list, you can (un)subscribe via this link. You can also follow the service interruption messages via RSS using the link in the title under the RSS icon. If the CPK takes more time to resolve, any updates are published on this website.

For RU wide service interruption see meldingen.ru.nl.

 

Service Interruptions


1433: fileserver peck upgrade broke NFS shares

We are going to upgrade fileserver “peck” on Friday June 19th 2026. The plan is to do it early in the morning, but you may experience some issues after the upgrade as well. Rebooting the client computer may solve the problem in that case. Please keep an eye on this page to check whether the upgrade is completed or not. The upgrade was finished, but it took a bit longer than expected. ...

Resolved Reports


1293: Astro.ru.nl DNS(SEC) service down

During the regular change of DNSSEC 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’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.

Updated May 5, 2026  ·  Simon Oosthoek · Created Apr 28, 2022 · 

1291: Network switch of Astro Coma cluster down

The network switch of the Coma cluster seems to be broken, all attached nodes are separated from the rest of the network. We’ll replace the switch a.s.a.p. and (let) analyze the problem after that.

Updated May 5, 2026  ·  Simon Oosthoek · Created Feb 22, 2022 · 

1292: SUSE Linux 15.3 Eduroam doesn't work with U- or s-number, but does with Science account

February 14, ILS switched off antique versions of TLS (1.0 and 1.1) for the Eduroam authentication on ILS LDAP servers. From then on, SUSE Linux 15.3 clients can’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.

Updated May 5, 2026  ·  Simon Oosthoek · Created Feb 14, 2022 · 

1290: Interrupted link to new datacenter switches

Due to human error, the connection between the new datacenter switches and the central router was interrupted.

Updated May 5, 2026  ·  Simon Oosthoek · Created Dec 15, 2021 · 

1289: vmhost07 poweroff

Vmhost07 was accidentally shut down. Cause: human error. labservanttest neurotech2 printvm msql01 indicoimapp ldap2 eftw jupytervm

Updated May 5, 2026  ·  Simon Oosthoek · Created Dec 2, 2021 · 

1288: Ceph storage expansion caused performance issues

As a result of the expansion of the Ceph storage cluster, the cluster had performance and availability issues. The problems were resolved this morning.

Updated May 5, 2026  ·  Simon Oosthoek · Created Nov 16, 2021 · 

1287: Server room network switch powerless

Two modules of an important switch in the main C&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’s kimited the downtime to ca. 15 minutes.

Updated May 5, 2026  ·  Simon Oosthoek · Created Oct 12, 2021 · 

1286: License server problem

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.

Updated May 5, 2026  ·  Simon Oosthoek · Created Oct 11, 2021 · 

1285: Fileserver 'flock' overloaded

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.

Updated May 5, 2026  ·  Simon Oosthoek · Created Sep 17, 2021 · 

1284: VPN onbereikbaar

A broken PDU has offlined a switch, which has caused the VPN server to be unreachable (and several other things, which don’t affect users).

Updated May 5, 2026  ·  Simon Oosthoek · Created Apr 24, 2021 ·