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Additional Domain Controller

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3 replies

by lalitkhurana

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have a Domain Contoller(PDC) which is hosting Directory
Services in Win2k Server. Now I want to setup another Domain
Controller if my primery domain gets any problem in case the
second domain should be take charge. Means I want crete Backup
Domain Controller(BDC) or Active Directory Replication shoul be
happened.

I had tried to setup Addtional Domain Controller but I
am getting Following Error in this operation.

The Directory Service failed to construct a mutual authentication
Service Principal Name (SPN) for server "Server Name". The call
is denied. The error was:
A Service Principal Name (SPN) could not be constructed because
the provided hostname is not in the necessary format.

Please advise.....

3 replies

by kurtl1

Sounds like you didn't join your new server to the domain before you tried to promote it to a DC. Make sure your DNS settings are correct, join it to the domain as you would a workstation, then run DCPromo.

by bfilmfan

Basically this problem occrus if the domain controller cant find the domain controller that is required to replicate changes. These domain controllers are listed in the repsTo attribute of the directory partition object. This situation may occur if a replication connection to a DC in the same forest was not created. (i.e. AD was removed from DC, remote DC orphaned or RDC missing service principal names on computer object)
Also could be the NTDS setting object does not appear for a server in AD sites and services.
Big resolution, im going to just pull it from a KB article instead of laying it out.

http://support.microsoft.com/kb/938704

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