Author Archives: squinney

Software Collections

The standard versions of various developer tools provided as part of a Scientific Linux release (e.g. SL6 or SL7) can become quite old. To gain access to newer versions various software collections can be added to a system. Redhat summarises … Continue reading

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Staff NX server reboot

We need to reboot the staff NX server (jubilee) to upgrade it to SL7.3. We plan to start this work at 9am on Thursday 29th June, we expect the service to be unavailable for approximately 1 hour. During the period … Continue reading

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ScientificLinux 7.3 upgrade

The 3rd minor update to ScientificLinux 7 (which is based on RHEL7) is now ready for deployment to the Informatics SL7 DICE office and student lab machines. A minor update like this provides us with the opportunity to update important … Continue reading

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SSH Server Reboot

We need to reboot the general access SSH server (bruegel) to upgrade it to Scientific Linux 7.3. This is just a minor upgrade from SL7.2 to SL7.3 which will have very few user-visible changes. We plan to do this at … Continue reading

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Staff SSH server reboot

We need to reboot the staff SSH server (brendel) to upgrade it to Scientific Linux 7.3. This is just a minor upgrade from SL7.2 to SL7.3 which will have very few user-visible changes. We plan to do this at 8am … Continue reading

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New SSH server

On Monday 3rd April we will replace the SSH server named schiff which hosts ssh.inf.ed.ac.uk and student.ssh.inf.ed.ac.uk with a machine named bruegel. All that will happen is that at about 08:00 on Monday we will change the DNS aliases to … Continue reading

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NX service upgrade

On Thursday 26th January we plan to upgrade the NX remote desktop service. All that will happen is that at about 09:00 we will change the DNS aliases (nx.inf and staff.nx.inf) to point to the new machines. This change can … Continue reading

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Linux “Dirty COW” vulnerability

On 20th October 2016 it was announced that a serious security hole had been discovered in the Linux kernel which was already being actively exploited. This vulnerability has been dubbed "Dirty COW" due to the exploit using a race condition … Continue reading

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SSH Server Upgrade

We need to upgrade the general access SSH server (schiff) to SL7. We plan to start this work at 9am on Tuesday 16th August. We expect the service to be unavailable for approximately 2 hours, we will send out another … Continue reading

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Staff SSH server upgrade

We need to upgrade the staff SSH server (brendel) to SL7. We plan to do this at 9am on Tuesday 9th August. We expect the service to be unavailable for most of that morning, we will send out another message … Continue reading

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