Author Archives: pb22

Internal Lab facilities may not be available

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

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condor pool moved to NFS sec=krb5

As emailed to all recent users of condor, the execute machines have now moved to NFS sec-krb5. The documentation has been updated. If anyone has problems, please email sys-admin.

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network and Xen problems

The network and xen world had problems 2014/09/04 Continue reading

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new slogin-otpw server – generate a new pad

mgk25 has just released version 1.5 of OTPW which does not need to use $HOME for the pad. This allows per-host local pads, removing the problems on NFS sec=krb5 systems. The DNS name slogin-otpw now points at the testing slogin … Continue reading

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Ubuntu 10.04 lucid libc bug

A libc bug involving nscd may cause some Ubuntu 10.04 systems to fail in various ways. The quick fix is to run “cl-asuser service nscd stop” and “cl-update-system” to install a fixed libc. Ubuntu 10.04 is getting a bit old … Continue reading

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Testing new slogin / ssh-remote server

Please try out the new test TSS “slogin-new”. Continue reading

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Xen Server upgrade to 6.2

Many VMs rebooting over the Bank Holiday w/e. Continue reading

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www-dyn(1) upgrade

The server providing the www-dyn1 and www-dyn services is to be upgraded. Users are recommended to check that any pages they publish work on the www-dyn2 and www-dyn3 servers. See http://www.cl.cam.ac.uk/local/web/personal.html#www-dyn for full details.

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Further NTP related changes

NTP probes from the internet will fail to most Lab systems. Continue reading

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Purge of unused VLAN 100 IP addresses

IP addresses in 128.232/20 which have not been used for a year have been removed from the DNS. Continue reading

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