[ryandrake]

You're getting a lot of responses along the lines of: "Well if it's on the public internet it's already being indexed and scanned already, so there's no harm submitting a single IP address / hostname." Whoever thinks this is relevant: Please post your personal server's IP address here.

My phone number is 10 digits. It can easily be enumerated. I'm still not posting it in a public forum or submitting it to an unknown web site.

[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.

[PeterisP]

There's a significant difference - posting this information here is saying that x.y.z.w is my server, and that has a privacy concern, just as saying that my (or your) phone number is 1234567890.

Anonymously submitting that x.y.z.w is a server running ssh, on the other hand, doesn't provide anything beyond what's already publicly known.

Also, your phone number is not easily enumerated. Scanning even a small range of phone numbers (i.e. attempting a connection to see if they're valid) takes significant time and effort. Finding all open standard ssh ports on the whole internet, on the other hand, can be done in minutes with a good enough connection.

[sliken]

Do you get a few random phone calls every hour from someone you don't know?

Your ssh port is.