Service Interruptions

1307: Sending E-mail from lilo blocked

To deal with the ongoing abuse of science accounts for spam, we have disabled the possibility to send e-mail from the linux login servers. This means that the lilos cannot be used anymore to run mutt/alpine or as socksproxy for mail clients. For users with cronjobs, note that cronjobs cannot send output via e-mail anymore. Please change your cronjobs to provide feedback in a different way or discuss an alternative solution with postmaster....

December 7, 2022 · updated December 7, 2022 ·  Simon

Resolved Reports

1297: Network switches failed after a power failure on campus

A few campus-wide dips in the power supply made network and telephony unusable for about 15 minutes, except in server rooms where UPSs guarantee the power supply. Because 7 modules of desktop switches in Huygens/HFML/Felix had become defective, several hundred network outlets will only have worked again after the relevant switch module had been replaced.

September 22, 2022 · updated November 29, 2022 · 

1296: Network failure datacenter

Still unclear what the cause is, several links are strongly degraded. Update: A defective switch has been replaced.

September 4, 2022 · updated November 29, 2022 · 

1295: Saturday May 14 adjacent buildings (Mercator, Proeftuin, Logistiek) 5 minutes without network

RU/ILS network management will switch to new hardware. This will lead to a network interruption of at most 5 minutes.

May 14, 2022 · updated November 29, 2022 · 

1294: Coma, coma01 and coma46 network problem

This afternoon three coma nodes lost their network because of an incorrect network configuration. They must have shown intermittent network problems earlier. It took us some time to find out what caused this network problem, but when found, it was easy to fix.

May 3, 2022 · updated November 29, 2022 · 

1293: 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 for This made 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....

April 28, 2022 · updated November 29, 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.

February 22, 2022 · updated November 29, 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.

February 14, 2022 · updated November 29, 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.

December 15, 2021 · updated November 29, 2022 · 

1289: vmhost07 poweroff

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

December 2, 2021 · updated November 29, 2022 · 

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.

November 16, 2021 · updated November 29, 2022 ·