troubleshooting Question

New root domain possible for existing AD domain?

Avatar of jm3245
jm3245 asked on
Windows 2000
10 Comments1 Solution314 ViewsLast Modified:
Hello!  First-time user.  Hope I'm doing this properly.

Let me first layout our situation, then I will pose the question:

I have a mixed-mode domain in Dallas which we will call  This domain was previously all NT4.  When the PDC was upgraded, the mistake was made to designate as the root domain.  I now know from reading other questions on this site that we should've first created a new domain with new hardware and designated it as just, then upgraded the existing domain.  Too late, so sorry.

Now, we also have a "sister" company in New Hampshire who was also running an NT4 domain with a two-way trust to our domain.  Both of their domain controllers were upgraded to Windows 2000 and they were nestled into our existing namespace as  I hope no New Hampies will be offended by that unintentional slight.

On a side note, just in case my upcoming question will be adversely affected by this, we have two Exchange 5.5 servers.  One resides on a member server in the domain and provides email for users in the domain.  Why?  I don't know.  It was that way when I got here.  Our other Exchange server resides in a wholly different yet trusted domain (a resource domain in the DMZ) which we will call  This server provides email for the users.  I will no doubt have more questions for this forum when we upgrade to Exchange 2000, which I've been told to have underway VERY soon.

Now the question:  Can I create a new domain, with new hardware, containing only domain controllers, and designate it as the root domain, then somehow have the other subdomains "merge" into that root domain?  I know that .NET will provide a namespace renaming tool, but we're light years away from that.

Or, if you have a better solution, I'm all ears.

Thanks in advance!
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