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IRIS

Instructional & Research Information Systems

Microsoft patches affecting some domain clients

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We have received multiple reports of people having trouble logging into EECS-domain Windows machines this morning, following application of the most recent Microsoft patches. Clients receive a message indicating: “The security database on the server does not have a computer account for this workstation trust relationship.”

Re-joining the EECS domain fixes this, but a simpler solution is also reported to work:
* Unplug your ethernet connection (wireless users may have a physical switch to disable wireless).
* Login with your EECS account as normal (it will used cached credentials).
* Reconnect ethernet cable (or enable wireless).
* Logout, and then test that you can successfully login normally (while connected) again.
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June 2015 Windows Server Patching

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Microsoft will release their patches for the month on Tuesday, June 9th, 2015.

PRINT and WINTERM will automatically patch and reboot Wednesday, June 10th, at 3:00 am.

WINTERM may be unavailable till 10:00am Wednesday, June 10th, depending on additional software updates.

Resolved as of 2015-06-10 10:13:00

Brief outage to numerous services Monday June 1

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Between 7pm and 8pm on Monday, June 1, we will be patching and rebooting the following servers.

www.eecs, jabber.eecs, iris.eecs, lists.eecs, apps.eecs and wiki.eecs.

Recent operating system patches include a new kernel, which requires a reboot to install. No machine will be down for more than 10 minutes.

Resolved as of 2015-06-01 19:30:00

Cory Hall Network Slowness, June 1st

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The wired network in Cory Hall was experiencing intermittent slowness today due to a router issue. We narrowed the issue down to a specific uplink, which was temporarily disabled to improve network performance. This issue occurred on the same device as yesterday’s LACP problem, and we are beginning to suspect a buggy config or device. In the coming weeks we will analyze our configurations, perform some deferred software upgrades and additional testing on this router, and open a bug ticket with the vendor if necessary.

All traffic has been diverted away from this router and we believe the issue to be resolved at this time. If you’re continuing to notice slowness or any other network issues, please email help@eecs.berkeley.edu.

Resolved as of 2015-06-01 16:30:00

Network disruption following the Soda Power Outage

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Following the completion of yesterday’s Soda Power Outage, and some network maintenance that was also completed during the outage, we discovered there was a network issue affecting a number of Cory Hall clients and wireless access points.

Some hosts affected include:

  • cusg.eecs.berkeley.edu
  • www-bsac.eecs.berkeley.edu
  • venus.eecs.berkeley.edu
  • cory.eecs.berkeley.edu
  • imail.eecs.berkeley.edu
  • terra.eecs.berkeley.edu

We will update here as our investigation continues.
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Soda Hall Building Shutdown, May 30th 2015

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Soda Hall will be powered down between 0600 and 1900 on Saturday, May 30th in order to complete the electrical interconnect between Soda and Jacobs Halls. During this time the building will be completely shut down and entrance to the building will not be allowed.

We have arranged for reserve power to be provided to the network and server rooms in 288, 290, and 420A Soda, such that department and research infrastructure and services will remain online and available to users outside Soda Hall.

We recommend powering off all equipment such as desktop computers ahead of time to prevent any issues caused by unexpected power loss. Additionally, any sysadmins hosting equipment in machine rooms other than 288, 290, and 420A will need to power their machines down in advance of the outage.

Should you need access to the building during the outage (for example, you are a sysadmin who would like to take advantage of the downtime to perform deferred maintenance), please email Miles Bianchi (miles.bianchi@berkeley.edu) for consideration by the Safety Committee. This access will only be granted for special cases.

We apologize for any and all inconvenience caused by this outage. If you have any questions or concerns, please contact Derek (dcalderon@berkeley.edu) for IT issues or Miles (miles.bianchi@berkeley.edu) for facilities or safety issues.
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