Index of Section 8 Manual Pages
|Interix / SUA||portmap.8||Interix / SUA
PORTMAP(8) System Manager's Manual PORTMAP(8)
portmap - DARPA port to RPC program number mapper
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.
Normally portmap forks and dissociates itself from the terminal like any
other daemon. portmap then logs errors using syslog(3).
-d (debug) prevents portmap from running as a daemon, and causes
errors and debugging information to be printed to the standard
When starting portmap will look for the special user "_portmap" to run as
this unprivileged user and if "_portmap" cannot be found the user
"nobody" will be look for. If neither user can be found in the user
database then portmap will continue to run as the user that started it
(which should be the local Administrator when started as a daemon from
the 'rc' scripts). Default installations of Interix will not have a
"_portmap" or "nobody" user account and must be created if you wish to
have one or both.
inetd.conf(5), inetd(8), rpcinfo(8)
The portmap command appeared in 4.3BSD
If portmap crashes, all servers must be restarted.
BSD December 15, 2004 BSD