I ask this for security purposes only (my website). I use PuTTY to connect to my server through SSH, and today I found out it is pretty easy to attempt connection to my server; you simply type my address in the hostname field and you can go ahead and try to connect.
I got curious and tried this on many sites; some did allow me to attempt login, but with most I got connection refused or something of that sort. I even got their IP through ping and the result was the same. I would like to know how exactly are they(the admins) log into their servers? are some servers SSH-less? maybe there is a hidden IP that they use?