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DNS NET logon 5781

Posted on 2011-04-22
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Last Modified: 2012-05-11
I have a single W2K3 domain server. I had an issue with my modem and had it swapped by a tech and he gave me new dns entries. I made what I thought were the right modifications... now I keep getting the 5781 error and cant figure out why. I called the ISP and they switched me back to my original dns entries. I know that both forward and reverse zone are both running. I have also ran nltest /dsregdns and it returned no flags. I cant figure out what needs to be changed.... any help would be greatly appreciated!
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Question by:cwest420
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Darius Ghassem earned 2000 total points
ID: 35447917
If you are running in a domain you should only be pointing to Domain Controllers for DNS in your TCP\IP properties. You should be using DNS Forwarders for your ISP DNS servers

http://technet.microsoft.com/en-us/library/cc787071(WS.10).aspx
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by:cwest420
ID: 35448033
First and foremost.. thanks for your quick reply! ok. On my tcp/ip setting on the DC the are set to my ISP's DNS servers. I followed the link but it looks like they use root hints as well. I went ahead and added both DNS entries into the forwarding zone. Same error.
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by:Darius Ghassem
ID: 35448067
Again you should NOT have your ISP DNS servers in your DC's TCP\IP settings you should only have DCs listed here for DNS only internal DNS servers this is your problem right here.

Once you changed the DNS settings on your TCP\IP settings run ipconfig /flushdns, ipconfig /registerdns, and dcdiag /fix on your domain controller

Second make sure you clients are only pointing to your DC for DNS in  their TCP\IP setting as well
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by:cwest420
ID: 35448601
AND.... your AWESOME!!! Thanks for your help.
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