You can use the Nslookup command to verify that the SRV resource records needed by Active Directory have been created properly when Dcpromo was run on the server.

To do this, type the following commands and verify that the command output shows the correct name for your domain controller, the correct name for your domain, and the correct IP address for your domain controller:

C:\>nslookup    
Default Server:  UnKnown    
Address:  ::1    
> set type=all    
> _ldap._tcp.dc._msdcs.d-pit.local    
Server:  UnKnown    
Address:  ::1    
_ldap._tcp.dc._msdcs.d-pit.local       SRV service location:    
    priority       = 0    
    weight        = 100    
    port           = 389    
    svr hostname   = dpit-dc01.d-pit.local
dpit-dc01.d-pit.local    internet address = 122.168.55.10~
> quit

C:\>