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PORTMAP(8)		FreeBSD	System Manager's Manual		    PORTMAP(8)

NAME
     portmap --	RPC program,version to DARPA port mapper

SYNOPSIS
     portmap [-d] [-v] [-h bindip]

DESCRIPTION
     Portmap is	a server that converts RPC program numbers into	DARPA protocol
     port numbers.  It must be running in order	to make	RPC calls.

     When an RPC server	is started, it will tell portmap what port number it
     is	listening to, and what RPC program numbers it is prepared to serve.
     When a client wishes to make an RPC call to a given program number, it
     will first	contact	portmap	on the server machine to determine the port
     number where RPC packets should be	sent.

     Portmap must be started before any	RPC servers are	invoked.

     Portmap uses hosts_access(5) access control by default.  Access control
     patterns may only reference IP addresses.

     Normally portmap forks and	dissociates itself from	the terminal like any
     other daemon.  Portmap then logs errors using syslog(3).

     The following options are available:

     -d	     Prevent portmap from running as a daemon, and causes errors and
	     debugging information to be printed to the	standard error output.

     -v	     Enable verbose logging of access control checks.

     -h	     Specify specific IP addresses to bind to for UDP requests.	 This
	     option may	be specified multiple times and	is typically necessary
	     when running on a multi-homed host.  If no	-h option is speci-
	     fied, portmap will	bind to	INADDR_ANY, which could	lead to	prob-
	     lems on a multi-homed host	due to portmap returning a UDP packet
	     from a different IP address than it was sent to.  Note that when
	     specifying	IP addresses with -h, portmap will automatically add
	     127.0.0.1 to the list.

SEE ALSO
     hosts_access(5), inetd.conf(5), inetd(8), rpcinfo(8)

BUGS
     If	portmap	crashes, all servers must be restarted.

HISTORY
     The portmap command appeared in 4.3BSD.

FreeBSD	10.1			 June 6, 1993			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | BUGS | HISTORY

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