I used to connect GCP instance with Tabby(3rd party SSH client) and it worked so well, somehow starting recently when I tried to connect to it it always shows this error. "All configured authentication methods failed ". What I have done , was just edited the file "vim /etc/ssh/sshd_config " turned "PermitRootLogin" and "PasswordAuthentication" into "yes" and tried using the username as "root" with relevant password to login.
My server is ubuntu 20.04 TLS on GCP platform with a "n2-standard-2" spec. And it also notice some kinds of info related to the fingerprint when this error occurred.
Please help me take a look what exactly went wrong?
1.Setup a new SSH profile.2.Input host ip, username as root, and ssh login password.3.Confirmed only "Password" icon was selected on "Authentication method"4.It turns out below capture error.