Tom Browder wrote: > Is it possible to use UFW to limit ssh access to a server by an external > host by its MAC address? > > I now have a permanent IPv4 address for my home IP router and would like to > access my home server from my laptop when away from home, but allow no > other external access. Is that possible?
Not via MAC address, no. MAC addresses are only visible inside a local area network, and disappear when routing happens to a new network. You should use an SSH public/private key, that you have tested before you leave, and you should use something like this in your sshd config: allow_users tomb which will narrow the range of acceptable users (before any other user auth happens) to just people who know your username. -dsr-
