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

    The ls command lists information about a domain. This command is
    useful for:

    o  Determining the number of hosts within a domain

    o  Hostnames and their IP addresses

    o  Troubleshooting DNS problems

    Table 1-3 Options to the NSLOOKUP ls Command

    Option   Function

    -a       Lists aliases of hosts in the domain (CNAME entries)
    -d       Lists all the entries in the domain
    -h       Lists CPU and operating system information for the
             domain (HINFO entries)
    -m       Lists mail exchangers (MX) entries in the domain
    -s       Lists well known services (WKS) in the domain
    -t       Lists a specified entry type

    The following examples shows the use of the ls command to obtain
    address records for all hosts within a zone.

    > ls -t a lgk.dec.com
    [condor.lgk.dec.com]
    @                       12H IN A        16.99.208.208
    dhcp-253                12H IN A        16.99.208.253
    ucxv4a                  12H IN A        16.99.208.129
    beavis                  12H IN A        16.99.208.90
    boxmor                  12H IN A        16.99.208.30
    kempo                   12H IN A        16.99.208.47
    pacnet                  12H IN A        16.99.208.84
    kwai                    12H IN A        16.99.208.63
    alxica                  12H IN A        16.99.9.37
    ppponvms                12H IN A        16.99.208.104
    a71kt                   12H IN A        16.99.208.142
    peteathome              12H IN A        16.99.208.101
    larisa                  12H IN A        16.99.208.49
    pigdog                  12H IN A        16.99.208.140
    ntruder                 12H IN A        16.99.208.110

    In the following example, the ls command displays alias records
    for hosts within the lgk.dec.com domain.

    > ls -a lgk.dec.com
    [condor.lgk.dec.com]
    $ORIGIN LGK.DEC.COM.
    celics                  12H IN CNAME    celtics
    news                    12H IN CNAME    nntpd.KLG.DEC.COM.
    tiger                   12H IN CNAME    ntruder
    console                 12H IN CNAME    bblts.KLG.DEC.COM.
    deebug                  12H IN CNAME    dot
    ayla                    12H IN CNAME    ayla.KLG.DEC.COM.
    cscibm                  12H IN CNAME    cscibm.KLG.DEC.COM.
    >

    Using the -m option obtains the MX records for hosts within the
    lgk.dec.com domain which the following example shows.

    > ls -m lgk.dec.com
    brigit                  12H IN MX       10 brigit
                            12H IN MX       100 mail1.digital.com.
                            12H IN MX       100 mail2.digital.com.
                            12H IN MX       200 crl.DEC.com.
    piglet                  12H IN MX       10 piglet
                            12H IN MX       100 mail1.digital.com.
                            12H IN MX       100 mail2.digital.com.
                            12H IN MX       200 crl.DEC.com.
    tieta                   12H IN MX       10 tieta
                            12H IN MX       100 mail1.digital.com.
                            12H IN MX       100 mail2.digital.com.
                            12H IN MX       200 crl.DEC.com.
    sherry                  12H IN MX       10 sherry
                            12H IN MX       100 mail1.digital.com.
                            12H IN MX       100 mail2.digital.com.
                            12H IN MX       200 crl.DEC.com.

    In the following example, using the -s option displays the well
    known services for a domain.

    > ls -s lgk.dec.com
    [condor.lgk.dec.com]
    WKStesthave             12H IN WKS      16.99.208.255 21 ( )
    WKStesthavenot          12H IN WKS      16.99.208.255 255 ( )
    WKStestnumbers          12H IN WKS      16.99.208.255 255 ( 21 23 )

    You can redirect the output from this command to a file which is
    helpful when the domain consists of a large number of hosts. Once
    the file is created, you can look at its contents with the DCL
    TYPE command.

    > ls -t a klg.dec.com > systems.txt
    [condor.klg.dec.com]
    #############
    Received 932 answers (0 records).

    $ TYPE SYSTEMS.TXT
    > ls -t a klg.dec.com
    [condor.klg.dec.com]
    $ORIGIN KLG.DEC.COM.
    @                       12H IN A        16.99.208.208
    dhcp-253                12H IN A        16.99.208.253
    ucxv4a                  12H IN A        16.99.208.129
    beavis                  12H IN A        16.99.208.90
    boxmor                  12H IN A        16.99.208.30
    kempo                   12H IN A        16.99.208.47
    pacnet                  12H IN A        16.99.208.84
    kwai                    12H IN A        16.99.208.63
    alxica                  12H IN A        16.99.9.37
    ppponvms                12H IN A        16.99.208.104