This article is very detailed and includes examples of setting sshd to only use more secure options: https://stribika.github.io/2015/01/04/secure-secure-shell.ht...
There was also a lot of HN discussion about it: https://news.ycombinator.com/item?id=8843994
Maybe a more technical/comprehensive read is this[1] writeup, which I see some others have linked to. Prior HN[2].
[1] https://stribika.github.io/2015/01/04/secure-secure-shell.ht...
[2] https://news.ycombinator.com/item?id=8843994
This article is very detailed and includes examples of setting sshd to only use more secure options: https://stribika.github.io/2015/01/04/secure-secure-shell.ht...
There was also a lot of HN discussion about it: https://news.ycombinator.com/item?id=8843994