Hi,
Is it possible to configure a Windows DNS Server to:
Respond to queries for xyz.com from a given subnet
Recurse everything else to the real xyz.com nameservers on the Internet?
This is a slightly a different case of split-brain DNS from that envisioned in the doco. It seems to me that DNS Policy does not quite seem to provide me this capability. I can do the first part, but the only options for Action on Add-DnsServerQueryResolutionPolicy are ALLOW, DENY and IGNORE. I would like to have a value there for RECURSE or similar. Is there some other way to configure this?
Situation is that we have a service that is internally routable from one subnet only and we need to use a public DNS name. I therefore want to identify queries from that subnet and specify the A record to use in the answer. All other queries however should be referred to the Internet since we do not hold the authoritative zone for this domain name.
It doesn't appear that I can use a recursion policy for this, so it does not seem possible. I also tried to create a DNS Policy for a stub zone or a conditional forwarder but it didn't like that either. My fallback is of course to create a primary zone and specify the current IP address from the real authoritative zone, however this will become stale and I would really prefer to recurse if possible.
Any thoughts appreciated!
Cheers,
Simon.