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DNS Forwarders setup

Posted on 2004-08-15
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Last Modified: 2008-02-01
The first time I upgraded an NT 4.0 server PDC to windows 2000, the forwarders tab on the w2k DC was greyed out and it was suggested that I delete the "."  This worked.  But I've also read that DNS can be set on a workgroup PC before I upgrade the PDC (they said stand-alone.  I'm assuming that a worgroup PC qualifies as a stand-alone) and in this case its not suggested to delete the ".", but instead to change the properties.  Why was it necessary to delete the "." in the first case?  (because the DNS server was on the DC and not a stand-alone PC?)  And what's the preferred method of DNS setup if the PDC upgrade is just going to be temporary and we will eventually have 2 DCs which are clean installs?
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Question by:imherson
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oBdA earned 1500 total points
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The root zone (".") in your forward lookup zones simply designates your DNS server as a root server; as such, it will not forward any requests for zones it doesn't hold. So if you want external lookups to work, you have to delete the root zone.

Frequently Asked Questions About Windows 2000 DNS and Windows Server 2003 DNS
http://support.microsoft.com/?kbid=291382

Best practices for DNS client settings in Windows 2000 Server and in Windows Server 2003
http://support.microsoft.com/?kbid=825036

HOWTO: Remove the Root Zone (Dot Zone)
http://support.microsoft.com/?kbid=298148
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