Quote:
Originally Posted by TerryP
the sshd server should listen on the local network (as necessary) on the designated port.
the router needs to forward incoming connections on the designated port to your external ip/domain to that machine.
Other wise generally, the router will tell anyone outside your home network to go to hell when trying to ssh in ;-)
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Even if it doesn't (maybe it hasn't got any specific firewall and just runs PAT) it doesn't know which pc in the LAN to forward the traffic to.
Maybe you got 3-4 pc's there, how should the router know which one that incoming ssh-request is meant for.
So, as others have said, of course you need to forward that port on the router to the specific machine/port.