|-p||Probe the portmapper on host, and print a list of all registered RPC programs. If host is not specified, it defaults to the value returned by hostname(1).|
|-u||Make an RPC call to procedure 0 of program on the specified host using UDP, and report whether a response was received.|
|-t||Make an RPC call to procedure 0 of program on the specified host using TCP, and report whether a response was received.|
|-n||Use portnum as the port number for the -t and -u options instead of the port number given by the portmapper.|
|-b||Make an RPC broadcast to procedure 0 of the specified program and version using UDP and report all hosts that respond.|
|-d||Delete registration for the RPC service of the specified program and version. This option can be exercised only by the super-user.|
The program 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 (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.
example% rpcinfo -p
To show all of the RPC services registered on the machine named klaxon use:
example% rpcinfo -p klaxon
To show all machines on the local net that are running the Yellow Pages service use:
example% rpcinfo -b ypserv version | uniq
where version is the current Yellow Pages version obtained from the results of the -p switch above.
To delete the registration for version 1 of the walld service use:
example% rpcinfo -d walld 1