NBP(1)

Name

nbplkup, nbprgstr, nbpunrgstr — tools for accessing the NBP database

Synopsis

nbplkup

nbprgstr [-A address] [-m Mac charset] [-p port] obj:type@zone

nbpunrgstr [-A address] [-D address] [-m Mac charset] [-s] [-f | -l] obj:type@zone

Description

nbprgstr registers nbpname with atalkd(8), at the given port. nbpunrgstr informs atalkd that nbpname is no longer to be advertised.

nbplkup displays up to maxresponses (default 1000) entities registered on the AppleTalk internet. nbpname is parsed by nbp_name(3). An `=’ for the object or type matches anything, and an `*’ for zone means the local zone. The default values are taken from the NBPLKUP environment variable, parsed as an nbpname.

If -A is specified, this address is used as the local address to be used for the lookup. If -D is specified, this address is used as the destination address to send the lookup to. The -f and -l options allow FwdReq and LkUp operations to be used instead of the default BrRq.

A BrRq asks a router (by default the local atalkd instance) to propagate a lookup request across the entire AppleTalk internetwork, and is the default option because it is generally the most useful. If in doubt, use a BrRq.

A LkUp asks a node just about itself; it can be used either to query what names are bound on a specific node, or by specifying a broadcast destination, simulate the kind of lookup that is done on a routerless network. A FwdReq asks a router to propagate the lookup to its directly connected networks that are members of the zone specified, but not to propagate it any further across the internetwork; this can be useful on large internetworks, or to troubleshoot caches on refractory nodes.

If -s is specified, output is printed in a script-friendly format: for each response, first the address is printed, followed by a single space, followed by the name and type, followed by a linefeed.

If -m is specified, strings will be interpreted in the given Macintosh character set. If -m is not specified, nbplkup defaults to using MacRoman.

Environment Variables

NBPLKUP

    default nbpname for nbplkup

ATALK_MAC_CHARSET

    the codepage used by the clients on the Appletalk network

ATALK_UNIX_CHARSET

    the codepage used to display extended characters on this shell.

Examples

Find all devices of type LaserWriter in the local zone.

    example% nbplkup :LaserWriter
                   Petoskey:LaserWriter        7942.129:218
                 Gloucester:LaserWriter        8200.188:186
                     Rahway:LaserWriter        7942.2:138
                 517 Center:LaserWriter        7942.2:132
                      ionia:LaserWriter        7942.2:136
         Evil DEC from Hell:LaserWriter        7942.2:130
                  Hamtramck:LaserWriter        7942.2:134
             Iron Mountain :LaserWriter        7942.128:250
    example%

Find all devices of type netatalk in the local zone, providing script-friendly output.

    example% nbplkup -s :netatalk
    5.42:4 netatalk-build:netatalk
    4.162:4 prometheus:netatalk
    8.31:4 Tiryns:netatalk
    example%

See also

nbp_name(3), atalkd(8)

Author

Contributors to the Netatalk Project (https://netatalk.io/contributors)