What is the ssh certification process?

< H1 > description < / H1 >

the computer room forbids the server from port 22 in area B. I don"t know exactly how to achieve it. I bind the server to port 8080 ssh in area A

< H1 > question < / H1 >

mac has been logged in area An and can now log in area B using port 8080.
but my desktop is using port 8080 login ssh, card in the figure location:


Mar.24,2021
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