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Instructional & Research Information Systems

Department Webservice

Department Webservice

Yearly SSL Renewal for Department Servers

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New SSL certificates will be installed at 10pm tonight (Monday) on www.eecs, lists.eecs, jabber.eecs and iris.eecs.

Each of these services will be restarted between 10pm and 10:15pm tonight, Monday, December 14th, 2009. Brief outages may be noticeable, but no server should be unavailable for more than a minute or two.

Please note that as recommended by our Certificate Authority we are moving to 2048 bit keys. Please report any compatibility issues to IRIS and your software vendor.
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EECS Web Servers Maintenance, Aug 11, 9pm

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New versions of Apache and mod_ssl will be installed tonight, August 11, 2009, on the following servers:

* www.eecs.berkeley.edu
* www.cs.berkeley.edu
* lists.eecs.berkeley.edu
* iris.eecs.berkeley.edu


This will require a quick restart of each web server. Brief outages (less than 5 minutes) will be seen between 9:00pm and 9:30pm.

Resolved as of 2009-08-11 22:00:00

Department website, mailing lists, jabber offline

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The department’s web server (www.eecs & www.cs), mailing list server (lists.eecs), and jabber server (jabber.eecs) all run on a Xen virtual cluster. After last night’s network failure was resolved around 2:30am, the Xen cluster failed to recover gracefully. These services had to be manually restarted this morning. Web and mailing list services were restored around 9:20am, and jabber was restored around 9:45am.

Staff are investigating why this occurred and how to prevent it from happening again.

Resolved as of 2009-05-22 09:30:00

Brief Downtime for Multiple IRIS Services

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The EECS Department website, FTP server, Windows Terminal Server (winterm), the IRIS website, Jabber, and Sympa (mailing list) services will all experience brief periods of unavailability beginning at 7:00am on Wednesday, February 25, 2009, possibly lasting until 8:00am.

The servers hosting these services will be changing IP addresses during this time as their current subnet (128.32.139.0/24) is being repurposed. DNS will be updated at 7:00am as well, so you shouldn’t need to make any changes to client applications unless you’ve been accessing any of these services directly by their IP rather than by their DNS name.
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Multiple Services Offline for About Eight Hours

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The EECS website, FTP server, Jabber server and Sympa mailing-list server were offline for about eight hours on Sunday, Dec 28, 2008 beginning at 2:48 p.m.

The virtualization cluster that hosts these services experienced a failure when the network switch that supplies its management network was rebooted during the [scheduled network maintenance](https://iris.eecs.berkeley.edu/news/2246-eecs-network-maintenance-sunday-dec). We didn’t notice the failure until this evening, but were able to restore service quickly once we realized what was wrong.

I apologize for the length of the downtime and am planning on working to make the cluster more robust and improve our notification and monitoring so that any future issues will be noticed more quickly.

Resolved as of 2008-12-28 22:32:00