portmap man page on OpenDarwin

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PORTMAP(8)		  BSD 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 portmap on a multi-homed host.  If no -h option is
	     specified, portmap will bind to INADDR_ANY, which could lead to
	     problems on a multi-homed host due to portmap returning a udp
	     packet from a different IP address then it was sent to.  Note
	     that when specifying ip addresses with -h, portmap will automati‐
	     cally add 127.0.0.1 to the list so you don't have to.

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

4.3 Berkeley Distribution	 June 6, 1993	     4.3 Berkeley Distribution
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