04-29-2009
Hello,
Thanks for that... it looks like the method my programming book suggests as the most efficient method, all done on one process. I assume then that multiple clients will be able to connect without any issues.
Thanks again,
Dragonfly
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LEARN ABOUT REDHAT
portmap
PORTMAP(8) BSD System Manager's Manual PORTMAP(8)
NAME
portmap -- DARPA port to RPC program number mapper
SYNOPSIS
portmap [-d] [-v]
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.
Normally portmap forks and dissociates itself from the terminal like any other daemon. 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.
-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