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Adding additional domain controller 2008 R2

I have a 2008R2 domain controller (running dns) I want to install an additional domain controller but am unsure how DNS should be setup. On the second server should I point my dns to the main domain controller then run dcpromo adding dns though the wizard. Once the wizard is finished then I change the DNS back to point to itself seeing as the role along with the active directory services should be installed and propagated from the main DC at that point.

Also before adding the second domain controller do I need to run domain or forest prep on the main domain controller as I saw this suggestion in a few posts. I'm not sure why this would be done.
Thanks

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Sid_F
Asked:
Sid_F
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2 Solutions
 
Krzysztof PytkoActive Directory EngineerCommented:
Hi,

you may wish to follow an article on my blog for that at
http://kpytko.wordpress.com/2011/09/05/adding-additional-domain-controller/

If you have more questions, do not hesitate to ask

Regards,
Krzysztof
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Darius GhassemCommented:
To add an additional DC you would need to run adprep if you currently do not have a Windows 2008 Server R2 running as a DC.

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/A_3644-Windows-2008-Server-R2-adprep-adprep32.html

You should keep the DNS pointing to your existing DNS server for a day to make sure replication has fully taken place. Before changing DNS setting as well run dcdiag to check the health of new DC
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Sid_FAuthor Commented:
Ok so if I have a 2003 or 2008 (non r2) I need to run just adprep?
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Darius GhassemCommented:
Correct
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Sid_FAuthor Commented:
Great thanks
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Krzysztof PytkoActive Directory EngineerCommented:
You're welcome :)

Krzysztof
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