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

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

       In the first synopsis, 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, 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, attempts to call that version
       of the specified prognum.  Otherwise, 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,
       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, 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, 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:https://sourceforge.net/projects/rpcbind/.  If you
       have a bug report for this manual page, see
       ⟨http:https://sourceforge.net/p/rpcbind/bugs/?source=navbar⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨git:https://linux-nfs.org/~steved/rpcbind⟩ on 2023-12-22.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2022-07-12.)  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
       [email protected]


Pages that refer to this page: getrpcent(3)