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Revision as of 23:21, 21 July 2010

Anouncements

Comcast DNS Issues

We are currently experiencing issues with Comcast home internet in PG county not correctly handling DNS resolution for UMIACS hostnames, that can seem to be affecting connectivity to UMIACS.

If you are having problems getting to UMIACS hosts you can use our name servers to resolve those specific host names then connect using the IP addresses you lookup. Our name servers are 128.8.120.19, 128.8.120.50, and 128.8.132.75 to use this information to get the ip address of the host somehost.umiacs.umd.edu you would use the command "nslookup somehost.umiacs.umd.edu 128.8.120.19", from a linux, windows or mac command prompt.

Unfortunately the problem seems to lie in an interaction of Comcast's name servers with those run by OIT, but we are looking into ways we can interact with those parties to get this issue resolved.

UMIACS Staff Jira

We have upgraded our request tracker to Jira. Please email staff@umiacs.umd.edu if you have questions or comments.

Technical Reference

Welcome to UMIACS Wiki. This is the main place to find documentation and information about your account and the technical services that UMIACS offers. If this is your first time please start here Getting Started.

We provide many Core Services which include EMail, Backups and VPN.

We have lots of specific Lab Facilities that you may be interested in.

Please check here if you are interested in Ordering Equipment.

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 ==Anouncements==
 <startFeed />
-===Emergency Downtime Jul 15, 2010 ===
+===Comcast DNS Issues===
-*Our site is now fully functional.  If you encounter any issues (like stale mounts we have missed) please let the help desk know at 5-1775 or staff@umiacs.umd.edu.  Thank you for your patience (UMIACS Staff, Fri Jul 16 13:57:13 EDT 2010)
+We are currently experiencing issues with Comcast home internet in PG county not correctly handling DNS resolution for UMIACS hostnames, that can seem to be affecting connectivity to UMIACS.
-*At this time most services (major file servers, nfshomes, most web services, imap mail, printing, web mail) are back. We are still working on getting the rest of the services back online. We apologize for the inconvenience this has caused the community and are still working hard to get all services back up. Thanks (UMIACS Staff, Thu Jul 15 15:05:36 EDT 2010)
+If you are having problems getting to UMIACS hosts you can use our name servers to resolve those specific host names then connect using the IP addresses you lookup. Our name servers are 128.8.120.19, 128.8.120.50, and 128.8.132.75 to use this information to get the ip address of the host somehost.umiacs.umd.edu you would use the command "nslookup somehost.umiacs.umd.edu 128.8.120.19", from a linux, windows or mac command prompt.
-*Today at 12, our main datacenter in 1139 lost power due to an unexpected power event which took off all main UMIACS infrastructure services and networking. We are currently working to restore services to UMIACS but we do not have a current estimate when we will be back. (Mark, UMIACS Staff, Thu Jul 15 13:15:20)
+Unfortunately the problem seems to lie in an interaction of Comcast's name servers with those run by OIT, but we are looking into ways we can interact with those parties to get this issue resolved.
 ===UMIACS Staff Jira===