Welcome to UGCS!
UGCS is the student-run computing facility of the California Institute of Technology. Historically, UGCS was an educational facility within the Computer Science Department; the name stands for UnderGraduate Computer Science. We are now independent of the CS department, but we continue to provide computing resources to the Institute's undergraduates, graduate students, faculty, and staff. For more information about our past, we have put together a brief history of UGCS.
Tip of the day for 2008-03-14 :
Like Linux? Want to help make UGCS a better place? Think you've got what it takes to be a UGCS sysadmin? Well, then you're in luck. UGCS is conducting its annual sysadmin search. If you're interested, please take our Sysadmin Survey and submit it by the end of spring break (March 30).
Services
For our users, we provide:
- Interactive login to our systems
- A computer lab in the basement of Winnett
- Email access by POP and IMAP
- Email aliases and mailing lists
- Web site space on our servers
For more information about our cluster and how to use its services, please see our user documentation
News
For older news, please go to the news archive.
March 18, 2008
We have blocked all Kerberos traffic that does not come from UGCS to help mitigate a recent Kerberos vulnerability.
Update We have patched the vulnerability and non-UGCS Kerberos has been unblocked. Jdhutchin@ugcs.caltech.edu 13:14, 18 March 2008 (PDT)
March 6, 2008
Due to unexplained issues with hera (our main LDAP server), we're routing all LDAP requests through to zeus (the Kerberos head and LDAP backup). As a result, things may be slower and less reliable. We are investigating the issue and hope to have it fixed soon.
March 2, 2008
Like Linux? Want to help make UGCS a better place? Think you've got what it takes to be a UGCS sysadmin? Well, then you're in luck. UGCS is conducting its annual sysadmin search. If you're interested, please take our Sysadmin Survey and submit it by the end of spring break (March 30).
February 21, 2008
In order to complete an upgrade to our mail server, mail services will be down for about an hour beginning around midnight.
Update Mail delivery is back up Jdhutchin@ugcs.caltech.edu 01:22, 22 February 2008 (PST)
February 13, 2008
We have automated the mailing list creation process. To create a mailing list, login to UGCS, and run the command create_mailinglist <LISTNAME>. Your list will be created within the minute. If you should run into any problems email me. alexr@ugcs.caltech.edu 18:15, 13 February 2008 (PST)
February 10, 2008
CGI scripting and PHP has been disabled due to a serious new kernel vulnerability. We are working on fixing this so that that we can re-enable scripting on our webserver.
Update: Scripting on poseidon has been re-enabled. Jdhutchin@ugcs.caltech.edu 15:17, 10 February 2008 (PST)
February 5, 2008
We are currently experiencing unknown problems with mail delivery. You can still access your mail on UGCS, but our server is currently not accepting new mail.
Update: Mail delivery is working again Jdhutchin@ugcs.caltech.edu 03:38, 5 February 2008 (PST)
January 4, 2008
Happy New Year! Unfortunately, we experienced difficulties with our virus scanning and spam blocking systems that resulted in mails being queued for delivery between January 2 and January 4 being held. We are currently clearing the backlog and all mails should arrive at their destinations shortly; no mail was lost.
Update: The mail queue finished flushing by 9pm. All mail has been delivered and mail delivery is back to normal.
Sysadmins
UGCS is administered by the UGCS sysadmins:
- Joshua Hutchins (jdhutchin),
- Matthew Maurer (maurer),
- Alex Roper (alexr).
The sysadmins can be contacted at sysadmins at ugcs dot caltech dot edu.
