prtunnel

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prtunnel tunnels TCP connections through an HTTP or SOCKS5 proxy server. It is useful if you're behind such a proxy and want to use a program that doesn't have native proxy support.

It's developed on Slackware Linux and OpenBSD (both x86), and should work on any other Unix-like system.

prtunnel was written by Josh Beam [email protected] and is distributed under a BSD-style license (see prtunnel.h or any other source file for the exact terms). The latest version can be found at http://joshbeam.com/software/prtunnel

Usage

prtunnel [options] [ ]

is the local port you want prtunnel to listen to; is the name or address of the remote system you want to connect to; is the port of the service you want to use on .

If run without the and arguments, prtunnel will accept SOCKS4/SOCKS5 commands from the client to determine the remote server to connect to.

Options: -D Run as a daemon. prtunnel will run in the background and accept multiple TCP connections with this option. -V Verbose output (prints all data transferred to standard output) -c Use color to differentiate between incoming and outgoing data in verbose output; without this, each line of outgoing verbose output will begin with ">>> " and incoming output with "<<< " -6 Enables IPv6 mode. This doesn't affect the way outgoing connections are made with the direct/direct6 tunneling modes; direct will always connect with IPv4 and direct6 will always connect with IPv6. -t Set tunneling mode; http (default), socks5, direct and direct6 are supported. With http and socks5, you must specify the address of an http/socks5 proxy to use. direct will make prtunnel connect directly to the remote host specified; direct6 does the same, but with IPv6 instead of IPv4. -H Name or address of the proxy server you wish to use -P Port that the proxy server uses (8080 default for http, 1080 default for socks5) -T

Here's an example: prtunnel -H proxy 6667 irc.freenode.net 6667 After starting prtunnel like this, you could then point an IRC client to 127.0.0.1, and prtunnel will attempt to connect you to irc.freenode.net via the HTTP proxy server on a system named "proxy".