[haldean]

Sure thing. I have two boxes that run sshd exposed to the internet: 69.164.221.163 and 45.79.85.20. sshd runs on port 2020 now; I was running it on port 22 before but I got so many failed login attempts that it was actually causing noticable load on the system (something like average 10% CPU usage just for sshd).

I still get a couple hundred failed login attempts every day. Reasonably strong passwords and fail2ban mean that it's nbd.

Also, my phone number is on my website (it's 320 584 9293) and most of the spam calls I get are through whois, not the fact that there's a tel: URL out there pointing at it.