Owen

Domain controller DNS can be tested by using the nslookup tool. To test a domain controller, use the following command: nslookup domainname.com If the domain controller is online, the domain controller should respond with the IP address of the domain controller. If the domain controller is not online, the nslookup command will return an error message.

To test DNS for a particular zone, use the following command: nslookup domainname.com zone The domain controller should respond with the IP address of the DNS server for the zone. To test DNS for all zones, use the following command: nslookup -all-zones domainname.com.