OpenSSH deployment trivia

[Lars Noodén]

Here is a bit of deployment trivia according to Shodan.

A search today¹ for SSH on port 22, shows OpenSSH on slightly over 90% 
of the hosts in the Shodan database (16327749 OpenSSH / 18106285 total). 
  With Dropbear at a distant second with just under 3% but just over 3% 
if some Dropbear variants are included.

A similar search² for SSH on any port, shows open SSH at just over 88% 
of the hosts in the Shodan database (27331336 OpenSSH / 3100284 total). 
  There Dropbear was at just over 2%.

Other than that, there is a very, very long tail of odd server strings 
claiming to speak SSH.

/Lars

¹ https://www.shodan.io/search?query=ssh+port%3A22

² https://www.shodan.io/search?query=ssh