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FTPGW.TCL(1)			   ftpgw.tcl			  FTPGW.TCL(1)

NAME
       ftpgw.tcl --- an	FTP gateway script to allow tunnelling

SYNOPSIS
	   ftpgw.tcl [-p <port-range>] [-v] [listen-port [ftpd-host [ftpd-
	   port]]]

DESCRIPTION
       This program is a simple	FTP gateway that intercepts PORT commands and
       passive-mode responses so that it can set up handlers for the data
       streams associated with them. It	then rewites these control lines so
       that traffic to an FTP server apparently	comes from the gateway
       process.	 Similarly a client sees a remote port that it can access for
       passive mode transfers. This allows the FTP control (but	not data)
       channel to be tunnelled and encrypted.

       By default the program listens on port 2121 and will redirect traffic
       to a local FTP server on	port 21. These values can be overridden	on the
       command line. The -v option turns on verbose logging to stderr.

       If the -p option	is specified then the argument is a range of port
       numbers in the form xxx-yyy. All	passive-mode data ports	will be	in the
       range xxx to yyy	and the	response lines will be re-written to redirect
       a client	to the corresponding port on 127.0.0.1 (localhost).  This
       means that passive-mode data connections	can be tunnelled in addition
       to the control connection.

       For examples of how to use this program see the documentation for
       Zebedee.

COPYRIGHT
       Copyright (c) 2000 by Neil Winton. All Rights Reserved.

       This program is free software; you can redistribute it and/or modify it
       under the terms of the GNU General Public License as published by the
       Free Software Foundation; either	version	2 of the License, or (at your
       option) any later version.

       This program is distributed in the hope that it will be useful, but
       WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A	PARTICULAR PURPOSE.  See the GNU
       General Public License for more details.

       You should have received	a copy of the GNU General Public License along
       with this program; if not, write	to the Free Software Foundation, Inc.,
       59 Temple Place - Suite 330, Boston, MA	02111-1307, USA.

1.0				  2001-04-12			  FTPGW.TCL(1)

NAME | SYNOPSIS | DESCRIPTION | COPYRIGHT

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