NSLOOKUP is a debugging tool provided with BIND that allows
    anyone to directly query a name server and retrieve information.
    Use NSLOOKUP to determine if your local name server is running
    correctly or for retrieving information from remote servers.

    NSLOOKUP makes direct queries to name servers around the world to
    obtain DNS information, including:

    o  Host names and addresses on the local domain

    o  Host names and addresses on remote domains

    o  Host names that serve as mail exchangers (MX records)

    o  Name servers for a specific zone

                                   NOTE

       The NSLOOKUP utility is deprecated. HP recommends that you
       use the dig utility instead. For more information, see the
       HP TCP/IP Services for OpenVMS Management guide.