NT 4.0 DC Rename in 2003 AD

I have to rename a former NT 4.0 BDC and add it to a 2003 AD forest that also has NT 4.0 DCs. The BDC was originally in the NT 4.0 domain that the 2003 DCs took over. What is the proper way to accomplish this?
RickNetwork EngineerAsked:
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NJComputerNetworksCommented:
Q. How do I rename a PDC/BDC?

A. To rename a Primary Domain Controller perform the following:

Log onto the PDC as an Administrator
Start the Network Control Panel Applet (Start - Settings - Control Panel - Network)
Click the Identification tab.
Click the Change button and enter in the new computer name and click OK
Restart the PDC for the name change to take effect.
Once the machine has rebooted start Server Manager (Start - Programs - Administrative Tools - Server Manager), if the old name still appears as a Backup, or if there is no entry for the new name:
- Create an entry for the new name. To do this, select Add to Domain in the Computer menu of Server Manager.
- Add the new computer account as a "Windows NT Backup Domain Controller" (it will be added and displayed as a Primary).
- Remove the old name by selecting the entry. To do this, select Remove from Domain on the Computer menu.
To Rename a Backup Domain Controller

Log onto the PDC as an Administrator and in Server Manager (Start - Programs - Administrative Tools - Server Manager) add an account for the BDC's new name
Log onto the BDC as an Administrator
Start the Network Control Panel Applet (Start - Settings - Control Panel - Network)
Click the Identification tab.
Click the Change button and enter in the new computer name and click OK
Restart the BDC for the name change to take effect. The NETLOGON service will not yet start on this server.
On the PDC, open Server Manager. Select the new BDC name and from the Computer menu, choose Synchronize With Primary. This will start the NETLOGON service.
In Server Manager, select the old BDC name from the list and from the Computer menu, choose Remove From Domain.
Note: If the BDC begins to receive 7023 or 3210 errors after synching the domain in server manager, on the PDC choose the BDC and then synch that specific BDC with the PDC. After an event indicating that the synch is complete, restart the BDC.
SOURCE:  http://burks.bton.ac.uk/burks/pcinfo/osdocs/ntfaq/ntfaq_09.htm#domain12


If this BDC was NOT removed from the domain, you can simply re-add the machine to the network.  This is because you domain has always been trying to communicate with the BDC even though its been offline.  However, if you try to add the BDC back onto the network...and the BDC was deleted from AD, I don't think there is any way you can add this server back....short of performing an AD restore.



Your best bet would probably be to add a new Windows 2003 DC in place of this old NT server.
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RickNetwork EngineerAuthor Commented:
I'm straight on what to do in an NT environment. My question is how will I be able to bring a renamed NT 4.0 BDC into a mixed 2003 AD forest (it  formerly was in the NT 4.0 domain before it became mixed with 2003). Can it simply be added like a common workstation?
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RickNetwork EngineerAuthor Commented:
Poking around it looks like it can be done by going to aduc and adding a computer in addition to checking the boxes for: pre-Windows 2000 and as a backup domain controller. If anyone knows that this will or will not work please reply.
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