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Migrate DNS, DHCP, WINS from old DC

Posted on 2013-01-12
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Last Modified: 2013-02-17
Hello, I have just installed a new exchange server to replace an old server running exchange 2003. I now need to remove this old server. The problem is that this server is a DC with some FSMO roles, and it also handled DNS, and DHCP. how do I remove exchange 2003, transfer those roles, demote it, and then decommission it? Thank you!
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Question by:indigo6
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davorin earned 500 total points
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As it is installed on domain controller you need first to uninstall exchange 2003 server prior to demote the server as domain controller. If you try first to demote DC it is very likely that you will kill exchange server and then you will have problems to correctly remove it from exchange organization.
So, first uninstall exchange 2003 server.
Then install and configure DHCP server (transfer settings) on another server and disable it on old server. I hope you don't have many manually configured settings.
If you have another DC on windows 2008 server, then you have there also DNS server. Just pay attention that you have DHCP server configured that it assigns new DNS server IP address to clients and not the old one. Check also computers/servers where you have manually configured IP settings.
Then you can normally proceed to transfer all FSMO roles to another DC and demote the old server.

http://support.microsoft.com/kb/822179/en-us
http://technet.microsoft.com/en-us/library/bb288905(v=exchg.80).aspx
http://support.microsoft.com/kb/324801
http://technet.microsoft.com/en-us/library/cc740017(v=ws.10).aspx
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