Today I present another excellent article by Domenico Raffaele originally presented in his blog (in Italian) where you can find many other interesting articles about hacks and VoIP. This is his second article about ssh.
Here you’ll see some example of SSH Port Forwarding, sometimes called SSH Tunneling, which allows you to establish a secure SSH session and then tunnel arbitrary TCP connections through it. Tunnels can be created at any time, with almost no effort and no programming, which makes them very appealing.
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