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Scheduled Maintenance: Shutdown of old LDAP servers

Posted by postprob on January 08, 2008 at 12:54 PM

Problem:   Shutdown of old LDAP servers
Cause:     Old equipment being phased out of service
Affects:   A few users connecting directly to the old servers (ldap-replica2 & ldap-replica3)
Started:   02/01/2008 05:45 AM
Resolved:  02/01/2008 06:00 AM

Notes:

[02/01/08 5:55 AM] - This time it looks like we have managed to remove all the dependencies from the blog system. The servers will remain shut down unless we hear of other critical services with dependencies that cannot be easily modified to use the new servers.

[01/31/08 8:15 AM] - We have been forced to restart the servers as there are dependencies on the old servers in the blog system that we could not find and fix in the short term. We are moving the shutdown to tomorrow morning and will try again then.

[01/31/08 6:15 AM] - The shutdown went as planned. The servers are currently shut down in such a way that they can be brought quickly back to service should we find that anyone has missed updating a critical service. In about a week's time, we will begin taking steps to permanently remove the servers.

On January 31st, ITS will be shutting down two of its older LDAP servers. This will not have any affect on most users. If you are connecting to an LDAP server without using SSL then you should be using ldap.case.edu as the server address. That will get you a list of all the current LDAP servers without any need to update anything now or in the future.



If you are using SSL (and you should be if you are accessing any sensitive data) then you must connect to each server by name. In that case you may be affected by the shutdown.



The two servers being shutdown are ldap-replica2.case.edu and ldap-replica3.case.edu. If you have any references to ldap-replica2 or ldap-replica3 you will need to replace them with the newer servers ldap-replica7 and ldap-replica8. Since these are all identical replicas all you need to do is change the number. No other changes should be required.


Created: 01/08/2008 12:54:26 by emr

Updates: 01/31/2008 06:12:06 by dak, 01/31/2008 08:20:22 by dak, 02/01/2008 06:06:59 by dak