Thanks to the staff who came in early Sunday morning to deal with this issue.
Resolved as of 2009-11-22 03:15:00
Instructional & Research Information Systems
LDAP (Lightweight Directory Access Protocol) service
by IRIS Staff
Resolved as of 2009-11-22 03:15:00
The Department’s directory server stopped responding around noon today. This affected multiple other services including www.eecs and imap.eecs.
The service was restarted at 12:19pm, and other services recovered soon after.
[Read more…] about Interruption to IMAP and other services
by IRIS Staff
We are still having issues with the new server setup, so the deployment of the new servers is delayed for the time-being.
[Read more…] about LDAP Service Restored
by IRIS Staff
There is an LDAP problem that is affecting some services including sending mail through gateway.eecs . Staff are working to correct the problem.
[Read more…] about LDAP problem
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.
[Read more…] about LDAP Server Issues
by IRIS Staff
Some service outages/slowness was experienced early in the morning. The problem has been resolved. The cause of the outage.is being investigated.
[Read more…] about Service Outage/Slowness