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  • Status: Solved
  • Priority: Medium
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Deleted DNS record comes back!

I have 3 DNS servers in one domain linked to active directory.

On one of them I had some IP addresses that enabled me to connect to storage on a different range. I deleted these IP's from the NIC settings and DNS but when I refresh they come back. So under forward lookup zone I see 3 entries instead of one.

Can anyone help me delete these?
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HKFuey
Asked:
HKFuey
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2 Solutions
 
Sean FitzpatrickSr Lab Systems EngineerCommented:
Just want to clarify, are only one of the DNS servers linked to AD? and the other two secondaries? Or are all three servers AD integrated?
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LearnctxEngineerCommented:
Are the DNS servers domain controllers or stand alone DNS servers?
Are the records static or dynamic (do they have a time stamp or does it say Static)?

On the server where the DNS records keep re-appearing. Is the DNS zone a primary DNS zone or a secondary?

Forward Lookup Zones > Zone.Name > Right click, Properties

The Type should be Active Directory-Integrated or Primary. If it is secondary, then it will be pulling its updates from another server. You will see that server below.
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HKFueyAuthor Commented:
Hi,
They are all domain contollers
All are set to Primary
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LearnctxEngineerCommented:
For the servers which are re-registering their records, enable DNS debug logging on their primary DNS server. You want specifically updates, inbound, requests. If the client is dynamically registering their DNS record you should see something like below 1.1.1.1 being the IP of the record being registered.

29/09/2014 6:37:10 PM 0DC4 PACKET  0000000011BA1570 UDP Rcv 1.1.1.1      dd45   U [0028       NOERROR] SOA    (4)your(6)domain(3)com(0)

If you see something like this coming in, then the server is re-registering its own DNS record.
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HKFueyAuthor Commented:
Turned out to be permissions not matching on the server. I can't give details as my colleague sorted it.
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HKFueyAuthor Commented:
leanrnctx you get the point as that was useful info.
Thanks
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