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Re: transparent proxy...

daemon@ATHENA.MIT.EDU (Jos Vos)
Wed Jun 5 17:57:49 1996

From: Jos Vos <jos@xos.nl>
To: todd@miango.com (Todd Fries)
Date: 	Wed, 5 Jun 1996 16:57:49 +0200 (MET DST)
Cc: linux-net@vger.rutgers.edu
In-Reply-To: <199606041629.LAA26658@lighthouse.umr.edu> from "Todd Fries" at Jun 4, 96 11:29:02 am

> Ok, now we have the ability to redirect telnets to remote machines to our local
> machine if the local machine is the router.
> 
> How hard would it be to reverse this, telnet to the router and have it redirect
> not to itself but to a machine on the other side of the router?
> 
> E.G. someone wants to setup a mailserver, but don't want the router to be both
> a router and a mail server, so they allow the mailserver to get incoming
> connections from the router...

If I understand your question right, the answer is simple: just write
an (application-level) server, that relays all incoming connections
to another system.  The basic plug-gw server of the TIS toolkit will
probably do the job for you.

But: what's so special about this?  This can be done on any UNIX system,
without special kernel support.  Or do you mean something else?

-- 
--    Jos Vos <jos@xos.nl>
--    X/OS Experts in Open Systems BV   |   Phone: +31 20 6938364
--    Amsterdam, The Netherlands        |     Fax: +31 20 6948204


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