Latest sys-admin news

DHCP servers upgraded

9 March 2015

The main Lab DHCP servers have been replaced. This should not have changed things for clients, so if there are any problems, please report them to sys-admin.

Another power glitch 2015-03-03 03:06:24

3 March 2015

This time it killed a switch ad (at least) two discs.

West Cambridge power problem 2015/02/23

24 February 2015

There was a power problem on the West Cambridge site effecting some of our systems in the WGB and some in the UIS at around 9PM on Mon 23 Feb. Please report any anomalies to sys-admin.

slogin server upgrade

21 February 2015

As there have been no reports of problems with the testing slogin server we plan to swap the DNS pointer over the weekend spanning the end of February and the start of March at which point the old instances will be available for a short time as slogin-old.

If you use the slogin service but have not...

NFS version 4

11 November 2014

Support for NFS version 4 has now been enabled on the main NetApp filer "elmer". The change is upwards compatible in the sense that the older protocol remains available as well. However client systems which support multiple versions will normally use the highest version available from a server, so many machines...

WGB power cut 2014/11/09 17:43

9 November 2014

There was a power cut in the WGB just before 17:43 for about ten seconds. See UIS report for their timeline.

internal 'sysdata' web service fist to move to NFS sec=sys

27 October 2014

http://sysdata.cl.cam.ac.uk/ is the first of the Lab web services to move to Ubuntu servers running Apache 2.4 using NFS sec=krb5 to access the web pages from the filer. Please contact sys-admin if there are any problems. Other services are likely to move over in the near future.

Matlab updated to R2014b

23 October 2014

The version of Matlab used on lab Linux systems has been updated from R2013b to R2014b.

Condor users should be aware that the pathname of the version of Matlab that they should use under condor has also changed, see http://www.cl.cam.ac.uk/local/sys/unix/applications/condor/condor-6.8.html#matlab...

Removal of avahi-daemon from Ubuntu 14.04 systems

22 October 2014

It appears that the avahi-daemon causes the gtk+ library on Ubuntu 14.04 systems used by many GUIs (e.g. firefox and chrome) to hammer the print spooler by opening hundreds of simultaneous connections, causing the GUI to crash. To avoid this, we are removing the avahi-daemon on all Ubuntu 14.04 systems. If you...

Internal Lab facilities may not be available

24 September 2014

Certain commands used to do “privileged” things within the Lab may not be working for a while. If some feature you particularly need does not work, please email details to sys-admin

DHCP servers upgraded

Another power glitch 2015-03-03 03:06:24

West Cambridge power problem 2015/02/23

slogin server upgrade

NFS version 4

WGB power cut 2014/11/09 17:43

internal 'sysdata' web service fist to move to NFS sec=sys

Matlab updated to R2014b

Removal of avahi-daemon from Ubuntu 14.04 systems

Internal Lab facilities may not be available

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