i want to remotely ssh to my home server, and I was wondering if I could just forward port 22 with disabling password login and use pubkey authentication will be safe enough?
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First of all don’t expose a machine on your LAN unless it is very well locked down especially with respect to ability to access rest of LAN. To simply access home LAN set up home VPN that has the access instead of opening up a port as powerful as ssh. If you open ssh then put it at some other port than the well known 22 and make it accessible by authorized key only. I would further limit where this ssh can be accessed from using firewall rules.