Comments for Computing Systems http://blog.inf.ed.ac.uk/systems Informatics Computing Staff jottings Thu, 24 Jan 2013 13:47:08 +0000 hourly 1 http://wordpress.org/?v=3.4.2 Comment on “groups” web server upgrade to SL6.3 by neilb http://blog.inf.ed.ac.uk/systems/2013/01/11/groups-web-server-upgrade-to-sl6-3/comment-page-1/#comment-6090 neilb Thu, 24 Jan 2013 13:47:08 +0000 http://blog.inf.ed.ac.uk/systems/?p=591#comment-6090 The move to SL6 is complete, it look little over the expected 5mins. If you have problems accessing your group web pages' filesystem path, it could be that your machine as stale AMD information. If 'amq' shows any mention of "beezer" then this is indeed the problem. Rebooting the machine is the simplest solution, but you may have some success with 'amq -f' followed by 'amq -u /amd/...' the paths that mention beezer and your group area. Other problems, please report via the support form. Note that the sl6. versions of the above URLs, no longer work. They were only for testing purposes. The move to SL6 is complete, it look little over the expected 5mins.

If you have problems accessing your group web pages’ filesystem path, it could be that your machine as stale AMD information. If ‘amq’ shows any mention of “beezer” then this is indeed the problem. Rebooting the machine is the simplest solution, but you may have some success with ‘amq -f’ followed by ‘amq -u /amd/…’ the paths that mention beezer and your group area.

Other problems, please report via the support form.

Note that the sl6. versions of the above URLs, no longer work. They were only for testing purposes.

]]> Comment on “groups” web server upgrade to SL6.3 by neilb http://blog.inf.ed.ac.uk/systems/2013/01/11/groups-web-server-upgrade-to-sl6-3/comment-page-1/#comment-6089 neilb Fri, 11 Jan 2013 16:31:00 +0000 http://blog.inf.ed.ac.uk/systems/?p=591#comment-6089 We don't generally support CGI on the groups web server, but if we have set it up for you, then CGIs are the other thing most likely to cause problems, again due to the version changes in software between SL5 and SL6. We don’t generally support CGI on the groups web server, but if we have set it up for you, then CGIs are the other thing most likely to cause problems, again due to the version changes in software between SL5 and SL6.

]]> Comment on homepages.inf.ed.ac.uk OS upgrade to SL6.2 by neilb http://blog.inf.ed.ac.uk/systems/2012/09/25/homepages-inf-ed-ac-uk-os-upgrade-to-sl6-2/comment-page-1/#comment-6026 neilb Thu, 11 Oct 2012 12:27:59 +0000 http://blog.inf.ed.ac.uk/systems/?p=488#comment-6026 This happened succesfully. Only a few people have been caught out by the short tag change above. This happened succesfully. Only a few people have been caught out by the short tag change above.

]]> Comment on Informatics Web Strategy by Henry S. Thompson http://blog.inf.ed.ac.uk/systems/2012/06/08/informatics-web-strategy/comment-page-1/#comment-4062 Henry S. Thompson Tue, 26 Jun 2012 15:42:09 +0000 http://blog.inf.ed.ac.uk/systems/?p=390#comment-4062 What does this mean for the present CVS-checkin-mediated access to e.g. teaching/courses/[courseAcronym]/... ? What does this mean for the present CVS-checkin-mediated access to e.g. teaching/courses/[courseAcronym]/… ?

]]> Comment on homepages.inf and groups.inf cookie crawl by neilb http://blog.inf.ed.ac.uk/systems/2012/05/21/homepages-inf-and-groups-inf-cookie-crawl/comment-page-1/#comment-3596 neilb Wed, 23 May 2012 09:42:37 +0000 http://blog.inf.ed.ac.uk/systems/?p=375#comment-3596 A few extra things. I should have said that I did get Head Of School's permission before grepping through the filespace. The most common query seems to be about Google Analytics. If you wish to keep using GA, then the current guidance from the University is that you can do so without obtaining prior consent, <b>BUT</b> you <b>DO</b> need to inform the user on every page that uses GA that you are doing so. See the University's page explaining their use to users. <a href="http://www.ed.ac.uk/about/website/privacy/performance-cookies" rel="nofollow">http://www.ed.ac.uk/about/website/privacy/performance-cookies</a> Yes, I know a bunch of our sites are not (yet) compliant. They will be soon! A few extra things.

I should have said that I did get Head Of School’s permission before grepping through the filespace.

The most common query seems to be about Google Analytics. If you wish to keep using GA, then the current guidance from the University is that you can do so without obtaining prior consent, BUT you DO need to inform the user on every page that uses GA that you are doing so. See the University’s page explaining their use to users. http://www.ed.ac.uk/about/website/privacy/performance-cookies

Yes, I know a bunch of our sites are not (yet) compliant. They will be soon!

]]> Comment on A Farewell to Samba by Iain http://blog.inf.ed.ac.uk/systems/2012/05/08/a-farewell-to-samba/comment-page-1/#comment-3404 Iain Tue, 08 May 2012 09:46:25 +0000 http://blog.inf.ed.ac.uk/systems/?p=359#comment-3404 Use case 3: access to a private area for scans made on the MFDs. Use case 3: access to a private area for scans made on the MFDs.

]]> Comment on Flood in the server room (not for real!) by Iain http://blog.inf.ed.ac.uk/systems/2012/03/29/flood-in-the-server-room-not-for-real/comment-page-1/#comment-2914 Iain Fri, 30 Mar 2012 09:59:27 +0000 http://blog.inf.ed.ac.uk/systems/?p=331#comment-2914 Great exercise! Great exercise!

]]> Comment on Self-managed machines – kerberos and ssh by Iain http://blog.inf.ed.ac.uk/systems/2012/02/08/self-managed-machines-kerberos-and-ssh/comment-page-1/#comment-1882 Iain Wed, 08 Feb 2012 13:05:52 +0000 http://blog.inf.ed.ac.uk/systems/?p=306#comment-1882 I'm not a Windows user, but the instructions for Windows don't actually say how to get a kerberized version of ssh working. I don't think installing kerberos makes Cygwin's ssh Just Work like it does in Ubuntu. I’m not a Windows user, but the instructions for Windows don’t actually say how to get a kerberized version of ssh working. I don’t think installing kerberos makes Cygwin’s ssh Just Work like it does in Ubuntu.

]]> Comment on Wake On LAN is now available by Iain http://blog.inf.ed.ac.uk/systems/2011/12/07/wake-on-lan-is-now-available/comment-page-1/#comment-887 Iain Wed, 07 Dec 2011 16:05:20 +0000 http://blog.inf.ed.ac.uk/systems/?p=273#comment-887 For other people with self-managed linux machines like mine: On my self-managed (Ubuntu 11.10) machine, this is how I suspend or hibernate my machine from the command-line: dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Suspend OR dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Hibernate Despite having one of the badly-behaved HP machines, I can wake mine up fine. Hibernate might work slightly more robustly, but either way the machine on rare occasions doesn't wake up. If I will *really* need access to the machine before I next physically come in, I currently won't hibernate it "just in case". For other people with self-managed linux machines like mine:

On my self-managed (Ubuntu 11.10) machine, this is how I suspend or hibernate my machine from the command-line:

dbus-send –print-reply –system –dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Suspend

OR

dbus-send –print-reply –system –dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Hibernate

Despite having one of the badly-behaved HP machines, I can wake mine up fine. Hibernate might work slightly more robustly, but either way the machine on rare occasions doesn’t wake up. If I will *really* need access to the machine before I next physically come in, I currently won’t hibernate it “just in case”.

]]> Comment on AFS Restores by neilb http://blog.inf.ed.ac.uk/systems/2011/11/10/afs-restores/comment-page-1/#comment-622 neilb Thu, 10 Nov 2011 23:25:02 +0000 http://blog.inf.ed.ac.uk/systems/?p=276#comment-622 All files partitions and volumes have been restored. If you are still having problems, please contact support. All files partitions and volumes have been restored. If you are still having problems, please contact support.

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