I am sorry for imperfect terminology (have only very basic understanding of network administration).
I have two DNS:
- Public DNS which manages zone 1
- Internal DNS (which is AD DNS based on Windows Server 2012R2) which manages zone 2.
I need to change it to do a split-brain DNS for zone 1. However, I don't want to have a whole zone 1 in both DNS.
All I need is resolving just one host from zone 1 on internal DNS to internal IP and forward everything else zone 1 related to public DNS.
My question is how to configure it on this AD DNS, Windows Server 2012R2.
Best Answer
Create a zone for the name that you want to resolve. For example:
cloud.joewebster.com
Then create an A record in the zone leaving the name blank (same as parent).
See my screenshots for an example:
So
cloud.joewebster.com
is resolved to the internal ip address and all other DNS records in thejoewebster.com
DNS zone are forwarded externally to the public DNS servers that host thejoewebster.com
DNS zone.