troubleshooting Question

DNS error when adding new DC

Avatar of roma_vt
roma_vt asked on
Active DirectoryInternet ProtocolsWindows Server 2008
4 Comments1 Solution273 ViewsLast Modified:
I have existing DNS infrastructure on BIND servers. For instance I have "test.com" domain.

I want to integrate AD infrastructure in my current infrastructure. My AD should have one domain controller in the same domain: "a.test.com". When I installed first DC and promoted it as a first DC everything was fine. When I promoted second DC I got an error

"DCPromo was unable to create DNS delegation in the parent zone: test.com. This could be because you do not have permissions to do so, or because the zone is hosted by a server that does not run Windows. To ensure thet this domain controller can be found by other computers on the network, you must create a DNS delegation in the parent zone for this domain. To do so, contact an administrator who is responsible for the DNS zone: test.com.
The error was:

The RPC server is unavailable"

These DCs are in different sites.

Why didn't I have this error when I was promoting dc in a.test.com domain? What is the difference between promoting new dc in new domain and promoting new dc in existing domain?

Thanks,
Roma_VT
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