I'm looking to implement two domains on two separate DC's within same subnet. One will be forest domain and the other will be a child domain. For eg. Domain "test.com" will be forest domain with ip "192.168.1.2" on DC "A" and domain "test.local" will be a child domain (of forest domain "test.com"), with ip "192.168.1.3" on DC "B".
What's the best way to set this up with respective DNS lookup settings, so that servers in domain test.com can be resolved in DNS of domain test.local on DC "B" and similarly servers in domain test.local can resolve in the DNS of domain test.com in DC "A" .