Step 6. Master DNS Servers
Here we can enter a list of known DNS servers for the new domain we wish to forward to.
Simply enter the IP address(es) of the other domain to the list. It will validate itself once you add it to the list.
It is important to add all known DNS servers here for redundancy reasons. As I only have the one Domain Controller I only have one address to add.
Click Next to Continue.
See below screen shot
Step 7. Finished
Step 7 isn’t really a step, however should everything have been successful you should be finished with the final window.
See screen shot below.
Step 8. Testing
Once you have added your forward stub zone, you should now test the configuration.
From a host on the domain.com network, you should be able to resolve host names on the example.com network.
You can verify that your stub zone is working by using the “nslookup” command.
In the below screenshot, you can see that when asking for the dns server information for the domain “example.com”, the host name dc01.example.com and the ip address of 10.0.1.11 is given.
Step 9. Consistency
If you are looking for complete transparency of both networks, you should repeat steps 1-8 on the example.com network to point to domain.com.
This will result in, not only being able to resolve example.com hosts in the domain.com network (as we have completed above), but also be able to resolve domain.com hosts from any example.com host as well.