VMS Help TCPIP Services, NSLOOKUP  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    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

  Additional Information (explode) :

• Starting and Stopping
• Commands
• Default Options
• Query Types
• Changing Servers
• Listing Domain Information