I have a testdev domain (T) on the production network with 2 domain controllers. We are now creating a separate network for testdev. I am planning to add a new test domain controller on domain T which will be on the test network so the T domain will have a total of 3 domain controllers. There is a request to create a trust with one of our branches since we need to build few test servers for them on our T domain (which is on the test network).
Can I make it so that only the single test domain controller which is sitting on the test network can trust the other domain?