The new certificate of the Science mailserver hadn’t yet been placed in the right place. The expiration of the old certificate caused a problem for Science mail users, that was resolved by replacing the old certificate.

March 25, a rule “2020 Radboud Universiteit” was added to the Science spamfilter. Recently, this matched RU-central mailings. Therefore RU-wide mailings from e.g. the RU Board and Radboud Recharge have erroneously been delivered in the Spam folder of Science emplyees. The Science spamfilter tries to fight spam and phishing, this is partly manual work in which errors can’t be excluded. C&CZ apologizes for the inconvenience this has caused.

A critical security update for GitLab has been released and is being installed this moment. During the update, GitLab is offline.

The virtual machine host ‘oscar’ stopped running at 5:30am. The listed virtual machines are not running at the moment. We are working on it. Update: Resolved. Again, a broken LVM snapshot caused the problem.

A failed PDU caused the servers with a single Powersupply to die and restart after the PDU was replaced. Running jobs were not finished on these nodes.

A loose power cable caused an interruption of one of our web servers. The machine is equipped with redundant power supplies. It’s not clear why a single loose cable caused a service interruption.

Due to a configuration error, the NFS service on file server ‘peck’ refused to start. After fixing the error, the NFS service started up correctly.

At the weekly reboot of vmhost ‘oscar’, it did not boot properly. The listed virtual machines are not running at the moment. We are working on it. Update: most probably, the problems where caused by full snapshots. After removal of the snapshots, the system booted properly.

Due to an administrative error the mailboxen of a few hundreds of users became inaccessible. Mail couldn’t be read from or delivered to these mailboxes until this had been repaired. In this period the mailclient of 19 users tried to read the mailbox and thus possibly reported an error.

A new receiving mailserver was introduced July 1. This server has the most recent version of Ubuntu and other software and settings that are more conforming to the directives (in Dutch). After the introduction, problems appeared with receiving mail from Microsoft Office 365 Exchange Online (mail.protection.outlook.com). An even bigger problem was that some accepted mails were not forwarded, but bounced to the sender. Because that problem couldn’t be fixed immediately, the newly introduced server has been shut down on July 2. At the end of August, C&CZ will test the probable solution. If the test succeeds, the new incoming server will be put into production.