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Solve : port forwarding...?

Answer»

Alright then, I'm familiar with the concept of port FORWARDING with NAT, i.e. to direct traffic to a web server within an NAT environment. What I want to know is: Is it possible to set up a machine to redirect traffic on a specific port to an external server on a different port. For example, I'm at WORK, with a HORRIBLY restrictive firewall with only ports 21 & 80 open. I want to hit the IRC channel here running on port 6667, and I have a Mac OS X box sitting at home which *should* be more than capable of doing the job. so the connection should look like this:

(me at work) -> TCP connection to port 80 ->  (My home machine) -> TCP connection to IRC server on port 6667 ->  (IRC server)

Is this possible & what is this type of connection called?

many thanks
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