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2013

  • 1 min read

ocf.berkeley.edu now points to web server

After nearly three years of deprecating the ocf.berkeley.edu hostname for SSH/SFTP access to shell accounts,  we have decided to point ocf.berkeley.edu to the web server.

The good news is that ocf.berkeley.edu in web browsers will seamlessly redirect (302 permanent redirect) to www.ocf.berkeley.edu. Less keystrokes, less to remember.

The bad news is that you cannot access your shell account using the hostname ocf.berkeley.edu. You will need to use ssh.ocf.berkeley.edu as has been listed in our wiki documentation.

We believe that the compromise is worth it especially in light of the long transition period.

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Unexpected downtime as services are inaccessible

The OCF webserver (www.ocf/death.ocf) and login servers (ssh.ocf/tsunami.ocf,supernova.ocf) are offline.  They are virtual machines hosted on hal.ocf which is still running and responds to network requests.

No current estimate on when the servers will be back up.  I am contacting site managers now.

Update 1am:  Network problems fixed. All services back up.

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Email virtual hosting downtime

Email virtual hosting (e.g., email forwarding for person@group.berkeley.edu) was unavailable today, April 27, between 2am and 11:30pm. Email senders during this time would have received a bounce message that said "Relay access denied". We apologize for the inconvenience.

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Campus-wide outage

The entire campus appears to have been inaccessible from outside between 12:19am and 2:11am, so OCF was inaccessible from off-campus as well. We do not yet know the cause of the widespread outage.

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File storage system (NFS) restructure

We will be restructuring our file storage system sometime over the next semester. Please be aware that the u1-u8 file structure will be gone. If you have any files that depend on that file structure, they will not work anymore. They can be fixed by changing them to use your home directory (e.g. /home/f/fo/foo instead of /mnt/u3/home/f/fo/foo).

Update 1/25: We will be taking the OCF down at around 10pm (we decided to delay until 1:15am).

Update 1/26: Due to routine maintenance before the restructuring, NFS will be down for at least all of Saturday. Total downtime was between 1:15am and 3:00pm.

Update 1/28: NFS file storage maintenance partially completed. We will be taking the OCF down again sometime in the near-ish future to finish the maintenance.

Update 2/11: We will be taking the OCF down on Saturday, February 16 to finish maintenance of the NFS file storage system.

Update 2/13: Maintenance will start on Saturday after 6pm when the lab is closed. Web hosting, email, and SSH/SFTP will be intermittently inaccessible during maintenance.

Update 2/17: The file storage maintenance has been completed successfully. Downtime occurred during the 11:30pm to 12:00am (30 minutes) maintenance window. Note that hard-coded references to /mnt will no longer work.

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Printing daily quota

Starting today, only 30 pages may be printed per day at the OCF lab by each member. Each member is still also limited to printing 250 pages per semester.

Why are we doing this?

  • We print 500,000 pages per semester (and increasing), but as a student group we don't have the financial resources or volunteer manpower to sustain this.
  • We print 2.5 times our printers' maximum recommended monthly print volumes on average (often more). Our printers require constant cleaning due to frequent toner leaks, which reduce reliability and print quality.
  • We have had quota complaints (members forgetting to log off, botched jobs), which would be minimized if each member's semesterly quota could only decreased by a certain amount each day.
  • The lengths of lines waiting for printing continues to increase.

See the February 12 OCF Board of Directors meeting minutes.

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DNS downtime

DNS and IRC was unavailable between 12:56am and 03:22am due to a networking error. System performance was degraded, unexpected errors may have occurred during that time, and logins may have timed out. We apologize for the inconvenience.