I have two DC running on Windows 2003 Server SP2 and all updates. Both servers are configured with DNS. The idea was if one is offline the other can listen. That is not the case, if the main DC is rebooted, all the PC's loose the ability to resolve. Exchange stops connecting, all the machines pretty much loose link to the DOMAIN. Once the server comes back up, everything is fine. How do I make it so that if the root DC goes offline, the network can resolve by looking at the 2nd DC.
All the PC's primary DNS are pointing to the root DC and secondary DNS is pointing to the second DC.
Your help is greatly appreciated... :-)