Category Archives: security

Amplification/Reflection attacks: Jenkins CVE-2020-2100

Posted on January 31, 2020 by Adam Thorn

Jenkins Jenkins (https://jenkins.io) is an open-source tool which can be used to automatically perform tasks such as automatic building and testing of software (continuous deployment/integration). Here in the Department of Chemistry we host some Jenkins instances used by some of … Continue reading →

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Windows 7: end-of-life on January 14th

Posted on January 7, 2020 by Adam Thorn

After January 14th, Windows 7 will no longer receive security updates from Microsoft. We will thus be blocking general network access for Windows 7 computers after the 14th. Users of departmentally-managed Windows 7 computers have already been contacted to arrange … Continue reading →

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Updated OpenVPN server

Posted on June 12, 2019 by Catherine E. Pitt

The Chemistry department has a VPN service providing remote access to our internal network. We’ve recently set up a second VPN server instance running a newer version of the VPN software with updated cryptography libraries and a great many bugfixes … Continue reading →

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TeamViewer and remote access

Posted on June 2, 2016 by Adam Thorn

Some of you may have read a recent story about possible security problems concerning TeamViewer, for example: http://www.theregister.co.uk/2016/06/01/teamviewer_mass_breach_report/ There are a number of supported remote access technologies in the Department, as described at http://www.ch.cam.ac.uk/computing/remote-access Our recommended method for remotely connecting … Continue reading →

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ssh fingerprints for bastion hosts

Posted on March 17, 2016 by Adam Thorn

Those of you who use our bastion host (citadel.ch.cam.ac.uk) may know something about ssh fingerprints: these are identifiers used by ssh servers which allow you to check that you really are connecting to the right server, and allow you to … Continue reading →

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Upcoming OpenVPN changes

Posted on October 6, 2015 by Catherine E. Pitt

Many people in the department use our OpenVPN service to get access to the Chemistry network when they are not physically in the building. If you use OpenVPN, you need to make some changes before 22nd October 2015 to ensure … Continue reading →

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Keep your systems up to date!

Posted on October 10, 2014 by Catherine E. Pitt

A timely warning from the University Information Service: Various high profile data security exploits have made the news recently. Please apply all available software updates and patches (for the operating system and all installed apps) to your devices: desktop computers, … Continue reading →

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