SSH question [was: FOSS app like Hamachi? ]

[Paul Lussier]

"Ben Scott" <dragonhawk at gmail.com> writes:

>   There's always SSH with port forwarding, proxy forwarding, and/or
> tun forwarding.

Is there a way to add a port-forwarding rule to an existing ssh session?
IOW, if I do:

  ssh foo.com 

and have that session open for while, but then realize I want my local
machine to be able to get to the web server on foo.com, is there some
means or telling the already existing ssh session "Hey, can you start
listening on local port 8080 and forward that over to port 80 on
foo.com".

I'm sure there's some very good technical reason you can't do that,
but seems like you ought to be able to.  Just like at any time I can
tell ssh-agent to add another key, I'd like to be able to tell ssh to
add in a new pair of ports to be connected across the tunnel.
-- 
Seeya,
Paul
--
Key fingerprint = 1660 FECC 5D21 D286 F853  E808 BB07 9239 53F1 28EE

A: Yes.                                                               
> Q: Are you sure?                                                    
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