Ok....in test I have an mixed 5.5 2K3 Exchange environment...during initial testing I just configured the backend 2K3 server for OWA with the forms based...cert...etc.
I then implemented a FE server on the same network...I am unable to get to mailboxes.
I have mixed 5.5 and Exch2K3 environment in test. I setup the backend server for OWA with SSL cert etc for testing. I then implemented a front end server, but I am unable to logon to a mailbox.
I have the check mark set for this will be a front end server...the server is not in a DMZ...
Any ideas?
also make sure you never ever plug it into your prod network again. You will have to do meta cleanup also to remove the "test" DC from the prod environment.
You may not have to correct ports open for Kerberos....
Also, clients by default use UPD for Kerberos which is connectionless. Try switching to TCP which is much better
http://support.microsoft.com/kb/244474/EN-US/
Port 88 udp/tcp must be open.
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