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Installing a second Domain Controller.

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by shanghai sam

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Hello all. I am trying to install a second domain controller to my network. When running Active Directory install, I choose "additional domain controller for existing domain." I keep getting the following error when it attempts to create the ntdsa object on the existing domain controller.

The operation failed because:

The Directory Service failed to create the server object for CN=NTDS Settings,CN=XXXXXX,CN=Servers,CN=XXXXXX,CN=Sites,CN=Configuration,DC=XXXXXX,DC=com on server XXXX. Please ensure the network credentials provided have sufficient access to add a replica.

"A Service Principal Name (SPN) could not be constructed because the provided hostname is not in the necessary format. "

Anyone come across this before? The user name I am using is a member of the Enterprise Admin group. Any help would be most appreciated.

Thanks very much.

2 replies

by techkid

you may have to be a part of schema admins too, not sure though. It sounds as if the computer name is not correctly entered. check the domain name and computer name

by pan 13 x

you have to be a domain admin with rights to add computers to the network. after installing the server as a standalone. configure the server with the correct network protocols and add the computer account to the domain. log in aas domain admin account and run dcpromo.

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