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change IP subnet on a windows 2003 domain

Posted on 2006-11-20
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Last Modified: 2008-02-26
We have a 5 windows 2003 servers (running terminal server, standard file serving and third party programs), and 1 windows 2003 server running Exchange Server 2003 spread over 3 offices. The 3 office are all connected via MPLS, and each office is a different class C subnet (10.100.1.x, 10.100.2.x, 10.100.3.x). We are consolidating to 2 offices. Instead of changing the MPLS routers and modifying the subnets at each office, we want to just move the servers from one office to a second office and just change the IP on the servers. HERE IS THE QUESTION; Will this screw anything up in the windows 2003 server setup? We have moved many domain controllers that are windows 2000 from one network to another and just changed the IP address on the servers, DNS did the rest for us. We do not have any root certs. The Server names are not changing. The domain will stay the same. ONLY THE IP SUBNET IS CHANGING.

Please respond 500 points!!!!!
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Question by:tdiops
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Hypercat (Deb) earned 500 total points
ID: 17981376
You can change the IP address/subnet mask with no problem.  The main thing is that the Server and Netlogon services need to be restarted after the change.  The easiest thing to do would be to change the IP just before you take down the server in the old location.  Then, when you bring it up in the new location, it will re-register itself in DNS with the new IP.  If the server is a DC/DNS Server, you might want to double-check after bringing it up to ensure that the auto-registration is working and the nameserver records in DNS have been changed properly.

Hope this helps!

Deb
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