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Man Pages


Manual Reference Pages  -  PORTFWD (8)

NAME

Portfwd - Port forwarding daemon

CONTENTS

Synopsis
Options
Files
Signals
Author

SYNOPSIS

portfwd -h
portfwd -v
portfwd [-d ...] [-g] [-t] [ -c config-file ]

DESCRIPTION

This manual page documents briefly the Portfwd program.

Portfwd stands for port forwarding daemon. It’s a small userland tool which forwards incoming TCP connections and/or UDP datagrams to remote hosts. There is support for FTP forwarding, transparent proxy, DNS on demand, simple round-robin load-balacing, external destination selectors and other minor features.

This author’s English skills are very bad as he’s not a native speaker of that language -- please feel free to contribute fixes for this page if you can.

OPTIONS

The program follows the usual GNU command line syntax, with long options starting with two dashes (‘-’). A summary of options is included below.
-h, --help Shows summary of options.
-v, --version
  Shows program version.
-d, --debug
  This option increases logging verbosity for debug. Up to 3 switches are meaningful. Failure messages are sent to the system log under daemon facility.
-g, --foreground
  Specify this option to keep the daemon running in foregroud.
-t, --transparent-proxy
  This switch enables transparent proxying. If you intend to forward data to hosts behind your masquerading firewall, you probably want this option turned on; it allows your servers to see true IP addresses of clients.
-f, --on-the-fly-dns
  Portfwd usually solves all DNS hostnames upon startup. Specify the -f option if you want the destination hostnames be updated on demand. Be aware this can affect TCP connection times and the whole UDP forwarding performance.
-c, --config config-file
  This argument allows specification of a configuration file other than the hard-coded default. config-file is the full pathname to the configuration file.

FILES

/usr/local/etc/portfwd.cfg
  Default configuration file. This may be changed by the "configure" script in compile time.

SIGNALS

SIGTERM
  If sent to Portfwd master process (the one with lowest PID), the TERM signal terminates the whole forwarding job.

SEE ALSO

http://portfwd.sf.net
  Portfwd web site at SourceForge.
portfwd.cfg(5)
  Portfwd configuration reference.

AUTHOR

Manual page loosely written by
�verton da Silva Marques <evertonsm at yahoo dot com dot br>

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The Port Forwarding Daemon PORTFWD (8) 2002-05-05

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