I hereby disclaim all responsibility for your use of this hack.
If it backfires on you in any way whatsoever,
that's the breaks. Not my fault.
If you don't understand the risks inherent in doing this, don't do it.
If you use this hack and it allows vicious vandals
to break into your company's computers and costs you your job and
your company millions of dollars, well that's just tough nuggies.
Don't come crying to me.
This document 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.
I haven't been actively developing this mini-HOWTO recently;
in particular, the french version is lagging behind.
I'm looking for a maintainer to take over this document,
and maybe develop software to make it easier to pierce firewalls.
I also have a lot of ideas for active maintainers
to expand this HOWTO, if anyone is interested.
Even though the only thing left is the disclaimers,
this document owes a lot to the
Term-Firewall mini-HOWTO
by
Barak Pearlmutter.
Barak's mini-HOWTO relies on
an ancient and no-more-supported program named Term
(a great program in its time,
and maybe still useful in some unhappy circumstances),
as well as on peculiarities of a not-so-standard telnet implementation,
that is, many obsolete and non-portable facts.
Nevertheless, there was a necessity for a mini-HOWTO about piercing firewalls,
and despite its shortcomings, his mini-HOWTO was a model and an encouragement.