DC calls ISP DNS for "olddomain"-info

  • Thread starter Thread starter wlc
  • Start date Start date
W

wlc

Hi all,

My DC is calling my ISP DNS for information about the domainname that it
used to have.
No point in doing that because it is a ".local" domainname.
The DC was holding the AD with that name untill I demoted it and created
another AD with another name.

Where could that query come from? It starts approx. 5 minutes after boot ,
then again after 5 min. , after 10 min; , after 20 min. .......

Aren't all refences to the "olddomain" wiped out when you demote and get rid
of the AD?
I checked DNS but there is nothing in there referring to the old name.

How do I stop this useless traffic?

TIA
wlc
 
I have seen this issue before with test domains where I demoted them and
repromoted creating new domain names. It is caching the information and the
only way I had found to remedy the problem was to uninstall DNS and
reinstall DNS..

If you do this you will lose the DNS registrations that you currently have,
so note any static entries that you may have manually entered first. Then
you will need to cycle the netlogon service on each DC, run the ipconfig
/registerdns on all clients to get them to reregister the host records.

Hope this helps.
 
Thanks for your reply Mark.

I solved the problem after reading about "event 5775" on EventId.net.
this is what Todd C.Boufford wrote about it:

snipped/
quote
1. Stop the NETLOGON service.
2. Copy out NETLOGON.DNS and NETLOGON.DNB from %SystemRoot%\System32\Config
to a hold directory in case they might be needed.
3. Delete NETLOGON.DNS and NETLOGON.DNB from the %SytemRoot%\System32\Config
directory.
4. Restart the NETLOGON service. NETLOGON.DNS and NETLOGON.DNB will be
recreated on the fly with the current AD domain DNS information.
/quote

No more problems now.

Greetings
wlc
 
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