From: Kyle Burton <mortis@voicenet.com>
Reply-To: plug@lists.nothinbut.net
To: plug@lists.nothinbut.net
Subject: Re: [Plug] telnetting around a firewall
Date: Tue, 26 Oct 1999 08:43:45 -0400 (EDT)
If you're behind a firewall that restricts ports to things like http [80],
or ftp [21], you can just set up your telet (better off useing ssh) to
listen on these ports. Depending on the firewall, you should be able
to 'telnet' across it on these ports.
There is also this software:
http://www.nocrew.org/software/httptunnel.html
which allows you to set up a tunnell between 2 boxes using what look
like http requests/responses. If the firewall is advanced enough to
actually look at what's going across port 80, weather or not the traffic
looks like real http transmissions, then you should be able to use this
software to get across it.
Of course, if they have the firewall locked down, it's probably for a
reason, and by circumventing it, you may make them less than cheery.
k
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mortis@voicenet.com
http://www.voicenet.com/~mortis
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On Mon, 25 Oct 1999, Nick R wrote:
> Yeah, I've been looking for something like this as well. Some kind of
telnet
> or ssh java interface thing. I'd think you'd need to somehow make it
look
> like http or something though so it didn't get filtered out. Or if not
ssh,
> is there some kind of one time unique password way to do it. I wouldn't
be
> aversed to carrying a short password list with me. I'll bet a simple cgi
> script could send and recieve commands one at a time though. In fact, I
> think I'll work on that.
>
>
> >From: Morgan Wajda-Levie <mpwl@locke.ccil.org>
> >Reply-To: plug@lists.nothinbut.net
> >To: Plug <plug@lists.nothinbut.net>
> >Subject: [Plug] telnetting around a firewall
> >Date: Mon, 25 Oct 1999 20:17:45 -0500
> >
> >Recently I've been spedning some time trying to work around my schools
> >telnet restrictions so I can use my computer. There is a firewall in
> >place which seems to make some telnet connects impossible, while
> >others work. I can telnet to my ISP, which runs NT, but my computer
> >and CCIL both report that the connection was dropped. I thought this
> >may have something to do with firewalls and the way the server
> >interacted with the client, but I don't know.
> >
> >Any way, I'd like to find a way to work around this. I've been
> >looking for a java telnet program, but have been unsuccesful. Does
> >anybody know of such a program that could work around a firewall?
> >Even better, are there any such programs out there that do ssh?
> >
> >--
> >Morgan Wajda-Levie
> >http://www.worldaxes.com/wajdalev
> >PGP fingerprint:
> >A353 C750 660E D8B6 5616 F4D8 7771 DD21 7BF6 221C
> >http://www.worldaxes.com/wajdalev/public.asc for PGP key
> >encrypted mail preferred
> ><< attach3 >>
>
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