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Hagen von Eitzen
Asked: 2015-04-29 06:37:03 +0800 CST

Windows 2012 DNS does not answer queries about zone itself (SOA, NS, A, ...)

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I have several Windows servers with DNS and AD roles, some are Win2003, some are Win2012. There is an AD-integrated zone example.com that contains an ip 192.0.2.1 for example.com and an ip 203.0.113.1 for bar.example.com.

  • A DNS query for bar.example.com returns the ip 203.0.113.1 as expected, no matter which server is asked. (Especially, we can be confident that replication has completed)
  • A DNS query for example.com asking any of the Win2003 servers returns the ip 192.0.2.1 as expected
  • A DNS query for example.com asking any of the Win2012 servers returns "Host not found"
  • A DNS query for SOA or NS records of zone example.com asking any of the Win2003 servers returns the correct information
  • The same query asking any of the Win2012 servers returns "Host not found"

I also tried to turn the zone into a non-AD-integrated one that is only served form the old servers. I hoped that the Win2012 servers would then return the correct answer per forwarding. But this didn't work out either ...

Meanwhile I noticed that I have another zone that has practically the same structure - and there the problem does not occur! I went through all properties of both zones - the only a differences are between SOA serial numbers and the MinTTL settings.

What is going wrong here?

Edit: Forgot to mention: In DNS Manager on the problematic servers, all records show up - it is just that they are not returned to DNS queries.

domain-name-system

1 Answers

  1. To be honest, the zone foo (or example.com as someone later edited) was really wpad. Therefore I needed to remove wpad from the globale DNS block list applied.

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