Protocol settings for sshd missing

[staticdev]

Adding Protocol 2 to sshd_config is a general security good practice.

Some references:

• https://www.tecmint.com/secure-openssh-server/
• http://www.snailbook.com/faq/ssh-1-vs-2.auto.html
• https://docstore.mik.ua/orelly/networking_2ndEd/ssh/ch03_05.htm

[Jeff Geerling]

The default has been 1 for some time, though — are there security scanning tools that are coming up and pointing this out, or are there systems you're using the role on that are defaulting to 1 for some reason?

[staticdev]

@geerlingguy actually after some research I saw latest versions of ssh server don't even have this parameter anymore. It is Procotol 2 only ;)