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The Hilltop Blog

Windows 2003 Active Directory Domain Rename - Updated 4/22/2009

Jim Turner - Wednesday, April 22, 2009
This week the Hilltop team performed what used to be considered an impossible task.  We renamed a Windows 2003 domain along with Microsoft Exchange 2003. 

The domain rename was completed over a weekend with quite a bit of follow up with the users on Monday morning.

We used the following links for reference:

http://www.msexchange.org/tutorials/Domain-Rename.html
http://support.microsoft.com/kb/842116

The project went very well and was nearly seamless for the users on Monday morning. 

One thing that the instructions did not cover was how the domain rename would affect Activesync on our Exchange server.  We ended up working with Microsoft to make some changes with ADSIEDIT to get Activesync working again.  Keep this in mind if you have Windows Mobile or iPhone users connecting to your Exchange 2003 server.

This is the information provided by Microsoft which helped us get Activesync working.

Under Adsiedit.msc > Configuration > Service > Microsoft Exchange > Administrative Group > Server > CN = Exchange (Server Name) Properties

Verified Network Properties 

Edited NCACN_TCP_IP value - server.newdomain.Local 

Did IISReset and Tested OWA it worked as expected with the From Based Authentication 

Tested ActiveSync it worked as expected 

Additional Information and Recommendations

=======================================

Exchange Server Static Ports 
http://support.microsoft.com/kb/270836 

How to configure a firewall for domain and Trust 
http://support.microsoft.com/kb/179442 

How to manage Outlook Web Access features in Exchange Server 2003 
http://support.microsoft.com/default.aspx?scid=kb;en-us;830827 

Step-by-Step Guide to Deploying Windows Mobile-based Devices with Microsoft Exchange Server 2003 SP2 
http://www.microsoft.com/technet/solutionaccelerators/mobile/deploy/msfp_8.mspx 

All in all the project was a success and the client was very happy with the results.  The domain rename took us a weekend to complete, whereas a Inter-Forest migration to a new domain could have taken weeks to complete.  This allowed us to avoid all of the coexistence issues and save the client thousands of dollars in consulting fees.
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