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LDAP Server Issues

February 8, 2008 by IRIS Staff

The departmental mail server (imap.eecs) and LDAP servers should now be working mostly properly. However, there are a few unresolved technical problems. You may encounter SSL certificate validation errors on our LDAP server (ldap.eecs and ldap.cs). As such, it may not be completely reliable for the remainder of today, and possibly across this weekend as well. We are actively working on solving the underlying problem, and will post an update as soon as we can.

No incoming or outgoing email was lost.

Technical background: Earlier today, the SSL certificates on our LDAP servers expired. This caused the LDAP daemon on ldap.eecs to hang, and refuse new connections. This cacscaded into a failure of part of IMAP system, and the IMAP daemon on imap.eecs similarly hung. We’ve managed to restart the daemons on both servers. Unfortunately, we’re running into a problem on the LDAP server, and are unable to install new, un-expired SSL certificates. As a result, we’re not completely confident that our LDAP servers won’t crash again, and take the IMAP server with it. Again, we’re continuously working on trying to fix this.

UPDATE

[2008-02-08 15:37:05 | Michelle Lee]

This issue has been resolved. New certificates have been put in place.

Resolved as of 2008-02-08 14:15:00

Filed Under: Resolved Incidents Services: LDAP

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