rpcinfo - report remote procedure call (RPC) information
/usr/sbin/rpcinfo -p [host]
/usr/sbin/rpcinfo [-n portnum] -u host program-number [version-number]
/usr/sbin/rpcinfo [-n portnum] -t host program-number [version-number]
/usr/sbin/rpcinfo -b program-number version-number
/usr/sbin/rpcinfo -d program-number version-number
-b Makes an RPC broadcast to procedure 0 of the specified program and ver-
sion using UDP and report all hosts that respond.
-d Deletes registration for the RPC service of the specified program and
version. This option can be executed only by the superuser.
Uses portnum as the port number for the -t and -u options instead of
the port number given by the portmapper.
-p Probes the portmapper portmap(8), running on host, and print a list of
all registered RPC programs. If host is not specified, rpcinfo defaults
to the value returned by either hostname(1) or gethostname(2).
-u Makes an RPC call to procedure 0 of program-number using the user
datagram protocol (UDP), and report whether a response was received.
-t Makes an RPC call to procedure 0 of program-number using the transmis-
sion control protocol (TCP), and report whether a response was
The rpcinfo command makes a remote procedure call (RPC) call to an RPC
server and displays its findings based on the specified options. The
program-number argument can be either a name or a number. If a version is
specified, rpcinfo attempts to call that version of the specified program.
Otherwise, rpcinfo attempts to find all the registered version numbers for
the specified program by calling version 0. If version 0 exists, rpcinfo
attempts to obtain this information by calling an extremely high version
number. The rpcinfo command then attempts to call each registered version.
1. To show all of the RPC services registered on the local machine, use:
# rpcinfo -p
2. To ping the mountd service registered on the machine named klaxon,
# rpcinfo -u klaxon mountd
3. To show all machines on the local network that are running the ypserv
# rpcinfo -b ypserv 'version' | uniq
where 'version' is the current NIS version obtained from the results
of the -p option.
4. To delete the registration for version 1 of the ypbind daemon, use:
# rpcinfo -d walld 1
Names for RPC program numbers
Commands: hostname(1), portmap(8)
Networking: tcp(7), udp(7)