We have DNS servers hosted on our Windows domain controllers, 2012R2. Currently we have a conditional forwarder for ad.trusted-domain.com
, which is working fine. We'd like to also forward PTR queries for their IP range, so I created a conditional forwarder 30.20.10.in-addr.arpa
to their DNS servers. However, it seems it doesn't work. When I do nslookup 40.30.20.10.in-addr.arpa
I get NXDOMAIN
. If I point it to their server, it works: nslookup 40.30.20.10.in-addr.arpa 10.20.30.5
returns the name of the machine.
Is there anything special needed when forwarding reverse domains? All the documentation and forum posts/blogs etc I've read while troubleshooting indicates that there shouldn't be any magic involved.
NXDOMAIN
indicates that the server you're querying is getting an authoritative answer from somewhere. Try asking for the SOA record (30.20.10.in-addr.arpa SOA
) and see if the returned response provides you with a hint about which server that is. – Andrew B Jun 25 '15 at 21:30