OpenSSH deployment trivia

Chris Rapier rapier at psc.edu
Sat Feb 14 06:14:38 AEDT 2026


On 2/13/26 09:56, Lars Noodén via openssh-unix-dev wrote:
> 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.

So I tried looking at the version numbers that are out there. Turns out 
one of the more common versions is 8.0 at 1,475,365 installs. 6,783,467 
are still using 7.4. 104,510 are using 10.2 and 697,747 are using 9.9.

https://www.shodan.io/search?query=ssh+version%3A%228.0%22





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