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Portfwd(8)             DragonFly System Manager's Manual            Portfwd(8)


NAME

       Portfwd - Port forwarding daemon


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
       Everton da Silva Marques <evertonsm at yahoo dot com dot br>

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

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