Author Archives: Craig Strachan

New Tape Library

Magnetic tape is viewed as a somewhat outdated medium by many people these days but for backing up larges amounts of data over a long period of time (and Informatics has a lot of data to back up), it still … Continue reading

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Mobile Friendly Informatics Survey Results

A big thank you to all of you who took the time to complete the recent survey on the areas of the Informatics Computing Service where mobile (mobile in this context meaning a smartphone or tablet rather than a conventional … Continue reading

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Security upgrades to OpenAFS

OpenAFS’s inability to use any encryption type other than single DES in the Kerberos tickets used to authenticate server-server and client-server communications has long been recognised as a major security shortcoming. 1DES’s relatively small key space renders it highly susceptible … Continue reading

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New AFS Quotas

One of the outcomes from the 2012 student survey was a decision to increase the AFS home directory quotas for all users. The new limits agreed were: UG1/UG2 – 2GB UG3/UG4/PGT – 5GB Staff/PGR – 10GB Unfortunately, our policy of … Continue reading

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Backing Up Macs

The question has been raised recently of how best to back Mac computers in use within the School. Macs running a reasonably modern version of MacOS come with Time Machine which allows the Mac owner to easily back up and … Continue reading

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New MFDs in Informatics

Keen observers of University affairs will already be aware that the University has recently changed its supplier of MFDs (a MFD (Multi Function Device) is what used to be called, in simpler times, a photocopier with a number of additional … Continue reading

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Informatics Web Strategy

For some time now, we have been thinking about the form the Informatics Web presence should take in the future. From this, an Informatics web strategy has evolved, the highlights of which I’d like to cover in this post. The … Continue reading

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A Farewell to Samba

For many years, the School of Informatics has provided Windows and MacOS users with access to its file and printing resources via Samba. Since the introduction of the OpenAFS file system and the CUPS printing system, there have been better … Continue reading

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Long Running Jobs and AFS

As most of you will be aware, access to the School’s AFS file system requires that the user be in possession of a valid Kerberos ticket. Most of the time, this is handled behind the scenes and doesn’t cause any … Continue reading

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Authenticated Printing for the AT Computing Labs

A Lot of Trees Over 200000 sides of paper per month are printed within the School during term time, more than half of them emerging from the 6 AT computing lab printers. At a rough cost of 5p per side … Continue reading

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