Not relevant [CLOSED]?

Question

SSH

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Answer 1

What port are you talking about? TCP port, COM port, LPT port, I/O port (accessible via IN/OUT processor commands)?
I advise you to look for an article on Habré about using SSh - there is a function for forwarding TCP ports, moreover, through a high-quality encrypted connection.

Answer 2

What kind of nonsense is written in the first paragraph? Nothing is clear ((
Port forwarding is done like this: you send an udp packet to the server every 30 seconds.
And then the server either relays or organizes a tunnel.