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.

No service interruptions.

Resolved

January 2016

CPK#1159 No free IP numbers in Vlan136

The DHCP server didn’t have free leases on Vlan136, so new devices on Vlan136 didn’t get an IP address, so didn’t have a working network connection. After we freed some unused numbers for PCs with a fixed address, we were able to drastically enlarge the number of leases on Vlan136.

CPK#1158 Network failure in part of study area Huygens

In Huygens wing 2 a network switchmodule crashed twice. About 30 pc’s in the Study Area lost their connection to the network for some time. The switchmodule will be replaced on 2016-01-21 at 07:30 am.

CPK#1157 Login servers down to activate safer kernel

CPK#1156 Webserver down to add hard disks

Affected sites: aerochem akn aqua bb2syllabus bgard boekingen boekwur bomengids cac cafe celbi dossiers est2b exo filosofie fnwi hfml iconic ifl irmacrash itp2011 iwwrbook kanboard kndv labservant leonardo math mbfys mbp nieuwescheikunde nlt notebooks olympus pilab piwik printeger projecten puff pz qpl quantumcs refbase resourceanalysis rrl scheiolymp setup siam sigma-lustrum sito smartech4health studiereis sws tango taskboard tk toernooi tredd trooster ubuntumirror vsc w4kangoeroe wortel

CPK#1155 Virtual servers network interfaces broken after updates

The virtual hosts fret, wolf and vos received updates to libvirt packages, causing the network interfaces of the virtual machines running on them to fail. Solved after reboot (fret) or restart of the libvirt daemons and the virtual machines. Affected virtual machines: bfacdc03 bfacdc04 drukker est2 gitlab3 ms2 nwidc01 redmine2 smtp1 smtp2 ts2

CPK#1154 Server lilo3 and lilo4 Monday morning reboot failed

The server lilo3/4 stalled at shutdown during the monday morning reboot. Solution: power cycle. Cause currently unknown.

CPK#1153 Server comas1 Monday morning reboot failed

The server comas1 did not start due to some possible timing problems between the raid array and OS. Solution: skipping the mount of /vd0 and /vd1 during boot (key S), mounts fixed manually later on followed by exportfs -uaf; exportfs -raf. Machine failed for unknown reason at boot. Solved by rebooting.

November 2015

CPK#1152 RU Internet connection down

Yesterday at ca. 15:52 a SURFnet core router crashed, taking down the RU Internet connection. At 16:09 the connection was restored. This was reported yesterday on a temporary SURFnet service interruptions page and on the ISC/CIM service interruptions page. Details can be found on the SURFnet Network Tickets mailing list.

CPK#1151 Print server printto problems

After a reboot of the print server (and waiting ca. 10 minutes) printers could be attached again.

CPK#1150 Problems availability wireless network eduroam

As a result of a short network service interruption last night, there were some problems with obtaining ip addresses on the wireless network eduroam.