From: Jamis Buck <jgb3@...>
Date: 2004-07-07T01:36:17+09:00
Subject: Net::SSH and port forwarding

Looks like the local->remote port forwarding will be pretty easy to 
implement (I've already got a prototype that does the trick...messily).

At any rate, I'm looking at this and I'm realizing that because I'm 
doing this all in Ruby, you could concievably have the port forwarding 
do tricks based on additional information in the request. Here's a use 
case to clarify my meaning:

Set up port forwarding on port X. When a connection is recieved, parse 
the request. If the request matches format A, forward the request to 
boxA:portA. If the request matches format B, forward the request to 
boxB:portB. Etc. All of this happens transparently to the client that 
connected to the local port.

Would this be useful for anyone? I'm probably going to write the Ruby 
interface in such a way that you could do something like the above with 
minimal effort, but I'm just curious if anyone would actually use such a 
feature in practice. :)

-- 
Jamis Buck
jgb3@email.byu.edu
http://www.jamisbuck.org/jamis

ruby -ropenssl 
-e'k="01234567";p((c,c.padding,c.iv,c.key=OpenSSL::Cipher::BF.new,false,k,k*2)[0].decrypt.update("1A81803C452C324619D319F980D5B84DBB45FC0FE2BAA045".scan(/../).map{|n|n.to_i(16).chr}.join))'