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Department of Computer Science and Technology

Read more at: Old autofs maps to be removed

Old autofs maps to be removed

29 August 2019

At the beginning of August we introduced a new set of autofs maps. We intend to remove the old maps from the LDAP server on Tuesday 3rd September.


Read more at: New NetApp filer

New NetApp filer

22 August 2019

The department has been running a NetApp filer called elmer as its primary filestore since 2002. Since the original installation, there have been two major hardware replacements, and on each of those occasions the transition was relatively seamless. It is now time for a third upgrade, but this one will be a bit different. The purpose of this article is to explain what we are planning.


Read more at: New autofs maps

New autofs maps

1 August 2019

In preparation for migrating to new filer hardware, we need to make changes to the automounter mappings used on managed Linux machines to access NFS file servers. These mappings are used to implement paths mostly beginning with /auto, and most frequently accessed through symbolic links such as /homes. /anfs and /usr/...


Read more at: Chiller failure

Chiller failure

16 May 2019

The temporary chiller failed 0300-08:15


Read more at: New Active Directory domain DC.CL.CAM.AC.UK

New Active Directory domain DC.CL.CAM.AC.UK

4 February 2019

The department is migrating from an old Active Directory domain to a new one. If you are still using somewhere the domain/realm/NetBIOS names of the old one, please check the current documentation and change to the new one accordingly:

Old Kerberos realm name: AD.CL.CAM.AC.UK Old NetBIOS domain name: CL.CAM.AC.UK...

Read more at: slogin-new and slogin-old DNS names removed

slogin-new and slogin-old DNS names removed

16 January 2019

The transitional DNS names slogin-new and slogin-old have been removed now that the slogin-serv system is believed stable, to ensure that nobody is still relying on them.


Read more at: Old print server being retired

Old print server being retired

7 November 2018

The old print server (version 1-6-2) will be retired in stages over the next week or so. Most users will not be affected, as they are already using our new server. The only people who need to take action are those who used Bonjour to load printers via the old server, which will be mostly Mac users. These printers will...


Read more at: Network outage on June 2nd

Network outage on June 2nd

4 June 2018

At 09:12 on Saturday morning, a new switch in our data centre failed. In doing so it bridged together all of its connections to the rest of the network. Since switches have multiple uplinks for resilience, this created a loop in the network.

This loop meant that network traffic was duplicated indefinitely,...


Read more at: PAT 2018

PAT 2018

1 June 2018

Portable Appliance Testsing (PAT) is not a legal requirement, but is required by our insurers. Estate Management have hired contractors to fulfill the insurers' requirement at very short notice. Some information which might be of interest:

Computers will not be turned off without permission. No machine rooms or...

Read more at: New Ubuntu MTA now in use by new slogin server

New Ubuntu MTA now in use by new slogin server

19 May 2018

The new slogin server will not send non-ASCII MH emails to the main Lab CentOS 5 MTAs, as they do not advertise that they support 8BITMIME. A Ubuntu 16.04 MTA which was being used for development has been brought into service, and slogin-new has been configured to use it. It is believed that the system works, but do...