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dcpromo on existing dns server - after promotion dns doesn't resolve srv records, etc.

Posted on 2011-09-20
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Last Modified: 2012-06-27
On a test environment I have, I am in the process of moving my DNS and AD infrastructure from Server 2008 R2 to a core installation of '08 R2.  As a first step, I set up the DNS infrastructure on the core installation and name resolution is working great.

I've created an unattended dcpromo file to control the promotion to a domain controller via notepad.

dcpromo seems to run fine, but for some reason other machines can't find the AD server via DNS post-promotion.  For example, when I try to join the new domain on a Win7 machine, the DNS query, from the Win7 machine (which points to the core machine as it' DNS server), isn't find the SRV record for the _ldap._tcp.dc._msdcs.<domain>.

On the server, the c:\windows\system32\config\netlogon.dns file contains the above entry with the correct FQDN of the server.

nslookup on the core machine isn't resolving the srv record either.

Ideas?

Thanks in advance.
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Question by:AgeOfEmpires
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Once I enabled auto updates on the DNS server and then ran dcpromo, everything works fine.
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