Every machine that is a domain controller for the domain MIDEARTH has to register the NetBIOS group name MIDEARTH<1C> with the WINS server and/or by broadcast on the local network. The PDC also registers the unique NetBIOS name MIDEARTH<1B> with the WINS server. The name type <1B> name is normally reserved for the Domain Master Browser (DMB), a role that has nothing to do with anything related to authentication, but the Microsoft domain implementation requires the DMB to be on the same machine as the PDC.

Where a WINS server is not used, broadcast name registrations alone must suffice. Refer to Network Browsing, Discussion for more information regarding TCP/IP network protocols and how SMB/CIFS names are handled.