rpcinfo(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | COLOPHON


NAME         top

       rpcinfo — report RPC information

SYNOPSIS         top

       rpcinfo [-m | -s] [host] rpcinfo -p [host] rpcinfo -T transport
       host prognum [versnum] rpcinfo -l [-T transport] host prognum
       versnum rpcinfo [-n portnum] -u host prognum [versnum] rpcinfo
       [-n portnum] [-t] host prognum [versnum] rpcinfo -a serv_address
       -T transport prognum [versnum] rpcinfo -b [-T transport] prognum
       versnum rpcinfo -d [-T transport] prognum versnum

DESCRIPTION         top

       rpcinfo makes an RPC call to an RPC server and reports what it
       finds.

       In the first synopsis, rpcinfo lists all the registered RPC
       services with rpcbind on host.  If host is not specified, the
       local host is the default.  If -s is used, the information is
       displayed in a concise format.

       In the second synopsis, rpcinfo lists all the RPC services
       registered with rpcbind, version 2.  Also note that the format of
       the information is different in the first and the second
       synopsis.  This is because the second synopsis is an older
       protocol used to collect the information displayed (version 2 of
       the rpcbind protocol).

       The third synopsis makes an RPC call to procedure 0 of prognum
       and versnum on the specified host and reports whether a response
       was received.  transport is the transport which has to be used
       for contacting the given service.  The remote address of the
       service is obtained by making a call to the remote rpcbind.

       The prognum argument is a number that represents an RPC program
       number.  If a versnum is specified, rpcinfo attempts to call that
       version of the specified prognum.  Otherwise, rpcinfo attempts to
       find all the registered version numbers for the specified prognum
       by calling version 0, which is presumed not to exist; if it does
       exist, rpcinfo attempts to obtain this information by calling an
       extremely high version number instead, and attempts to call each
       registered version.  Note: the version number is required for -b
       and -d options.

OPTIONS         top

       -T transport
               Specify the transport on which the service is required.
               If this option is not specified, rpcinfo uses the
               transport specified in the NETPATH environment variable,
               or if that is unset or null, the transport in the
               netconfig(5) database is used.  This is a generic option,
               and can be used in conjunction with other options as
               shown in the SYNOPSIS.

       -a serv_address
               Use serv_address as the (universal) address for the
               service on transport to ping procedure 0 of the specified
               prognum and report whether a response was received.  The
               -T option is required with the -a option.

               If versnum is not specified, rpcinfo tries to ping all
               available version numbers for that program number.  This
               option avoids calls to remote rpcbind to find the address
               of the service.  The serv_address is specified in
               universal address format of the given transport.

       -b      Make an RPC broadcast to procedure 0 of the specified
               prognum and versnum and report all hosts that respond.
               If transport is specified, it broadcasts its request only
               on the specified transport.  If broadcasting is not
               supported by any transport, an error message is printed.
               Use of broadcasting should be limited because of the
               potential for adverse effect on other systems.

       -d      Delete registration for the RPC service of the specified
               prognum and versnum.  If transport is specified,
               unregister the service on only that transport, otherwise
               unregister the service on all the transports on which it
               was registered.  Only the owner of a service can delete a
               registration, except the super-user who can delete any
               service.

       -l      Display a list of entries with a given prognum and
               versnum on the specified host.  Entries are returned for
               all transports in the same protocol family as that used
               to contact the remote rpcbind.

       -m      Display a table of statistics of rpcbind operations on
               the given host.  The table shows statistics for each
               version of rpcbind (versions 2, 3 and 4), giving the
               number of times each procedure was requested and
               successfully serviced, the number and type of remote call
               requests that were made, and information about RPC
               address lookups that were handled. This is useful for
               monitoring RPC activities on host.

       -n portnum
               Use portnum as the port number for the -t and -u options
               instead of the port number given by rpcbind.  Use of this
               option avoids a call to the remote rpcbind to find out
               the address of the service. This option is made obsolete
               by the -a option.

       -p      Probe rpcbind on host using version 2 of the rpcbind
               protocol, and display a list of all registered RPC
               programs.  If host is not specified, it defaults to the
               local host.  Note: Version 2 of the rpcbind protocol was
               previously known as the portmapper protocol.

       -s      Display a concise list of all registered RPC programs on
               host.  If host is not specified, it defaults to the local
               host.

       -t      Make an RPC call to procedure 0 of prognum on the
               specified host using TCP, and report whether a response
               was received. This option is made obsolete by the -T
               option as shown in the third synopsis.

       -u      Make an RPC call to procedure 0 of prognum on the
               specified host using UDP, and report whether a response
               was received. This option is made obsolete by the -T
               option as shown in the third synopsis.

EXAMPLES         top

       To show all of the RPC services registered on the local machine
       use:

               example% rpcinfo

       To show all of the RPC services registered with rpcbind on the
       machine named klaxon use:

               example% rpcinfo klaxon

       The information displayed by the above commands can be quite
       lengthy.  Use the -s option to display a more concise list:

               example$ rpcinfo -s klaxon

       program   version(s)                          netid(s)   service      owner
       100000    2,3,4     local,tcp,udp,tcp6,udp6   rpcbind    super-user
       100008    1         udp,tcp,udp6,tcp6         walld      super-user
       100002    2,1       udp,udp6                  rusersd    super-user
       100001    2,3,4     udp,udp6                  rstatd     super-user
       100012    1         udp,tcp                   sprayd     super-user
       100007    3         udp,tcp                   ypbind     super-user

       To show whether the RPC service with program number prognum and
       version versnum is registered on the machine named klaxon for the
       transport TCP use:

               example% rpcinfo -T tcp klaxon prognum versnum

       To show all RPC services registered with version 2 of the rpcbind
       protocol on the local machine use:

               example% rpcinfo -p

       To delete the registration for version 1 of the walld (program
       number 100008 ) service for all transports use:

               example# rpcinfo -d 100008 1

       or

               example# rpcinfo -d walld 1

SEE ALSO         top

       rpc(3), netconfig(5), rpc(5), rpcbind(8)

COLOPHON         top

       This page is part of the rpcbind (convert RPC numbers to
       universal addresses) project.  Information about the project can
       be found at http://sourceforge.net/projects/rpcbind/.  If you
       have a bug report for this manual page, see
       ⟨http://sourceforge.net/p/rpcbind/bugs/?source=navbar⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨git://linux-nfs.org/~steved/rpcbind⟩ on 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2024-03-18.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org


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