1 SSH tunnel, 2 devices: 1 "just works," other gets challenged Post: 302580829

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LEARN ABOUT OSX

portmap

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 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 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.

BSD
								   June 6, 1993 							       BSD