Mastodawn

The SSH port is 22. This is the story of how it got that port number. And practical configuration instructions.

22 was originally half of telnet. Once TCP freed up that second port, it made sense to shift that over to a better client protocol.

@mwl @nixCraft yep. NCP, what we used before TCP used different ports for each direction.

Hence why we have so many old protocols using every other port.

@drscriptt @mwl @nixCraft I never knew why they were all odd, thanks!

@jayalane 😉 because history.

Newer things have been filling in over the inter waning years.