Invalid Client Protocol Banner - Null terminated (wodSSH / wodSSH.NET)
Not sure what is this error about. What banner are you refering to? Initial client exchange? It should not have zeros inside.
What ubuntu version, and what OpenSSH version are you using? Can we try to connect there?
- Invalid Client Protocol Banner - Null terminated - AdrianWatkins, 2021-06-08, 13:01