portmap - phpMan

PORTMAP(8)                BSD System Manager’s Manual               PORTMAP(8)

NAME
     portmap - DARPA port to RPC program number mapper

SYNOPSIS
     portmap [-d] [-l] [-v]

DESCRIPTION
     Portmap is a server that converts RPC program numbers into DARPA protocol port num-
     bers.  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.

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

     Option available:

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

     -l      (localhost only) causes portmap to only bind to the loopback interface (i.e.
             INADDR_LOOPBACK).

     -v      (verbose) run portmap in verbose mode.

     This portmap version is protected by the tcp_wrapper library. You have to give the
     clients access to portmap if they should be allowed to use it. To allow connects from
     clients of the .bar.com domain you could use the following line in /etc/hosts.allow:

     portmap: .bar.com

     You have to use the daemon name portmap for the daemon name (even if the binary has a
     different name). For the client names you can use the keyword ALL, IP addresses,
     hostnames or domain names.

     For further information please have a look at the tcpd((8)), hosts_allow((5)) and
     hosts_access((5)) manual pages.

SEE ALSO
     xinetd.conf((5)), rpcinfo((8)), pmap_set((8)), pmap_dump((8)), xinetd((8)) tcpd((8))
     hosts_access((5)) hosts_options((5))

BUGS
     If portmap crashes, all rpc servers must be restarted.

HISTORY
     The portmap command appeared in BSDBSD 4.3.

4.3 Berkeley Distribution       March 16, 1991       4.3 Berkeley Distribution

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