Portfwd(8)Portfwd(8)NAME
Portfwd - Port forwarding daemon
SYNOPSISportfwd-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 selec‐
tors 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 for‐
ward data to hosts behind your masquerading firewall, you proba‐
bly 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 "config‐
ure" 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>
The Port Forwarding Daemon 2002-05-05 Portfwd(8)
