Why root can't connect to remote server?

[fullyint]

@Wassim I’m not sure this is the same issue, but I am reminded of this problem when a user’s ansible couldn’t connect but his manual ssh could. Turned out he was using an SSH key with password authentication and had saved the password so it seemed like his manual ssh was the passwordless ssh that ansible requires.

@buretta

I must have saved the pass at some point which would allow me to connect as ssh root@ without continually adding the pass. I tried this on another machine as well and ssh root@ required a pass…argh, my bad.

Could you try your manual ssh connection with PasswordAuthentication=no like this:

ssh -o PasswordAuthentication=no root@46.101.136.20 "echo can_connect" || echo cannot_connect

What output do you get?