Verifying Active Directory Installation

Check the status of the shared SYSVOL

dcdiag /test:netlogons

Verify DNS registration and functionality

dcdiag /test:dns

Verify communication with other domain controllers

nltest /dclist: <domain name>

Verify replication with other domain controllers

dcdiag /test:replications

Verify the availability of the operations masters

dcdiag /s: domaincontroller /test:knowsofroleholders /verbose 
dcdiag /s: domaincontroller /test:fsmocheck