Resolve the ECS login SSH error "Disconnected: No supported authentication methods available"

In the operation and maintenance server, we log in to SSH and report the error "Disconnected: No supported authentication methods available". Theoretically, the default value of the parameter PasswordAuthentication in the service is yes, and the value is set to no to disable password authentication login, resulting in such failures. You need to modify the PasswordAuthentication configuration to solve this problem.

 /etc/ssh/sshd_config

Edit this file.

Set the parameter PasswordAuthentication to yes, or add # before the parameter PasswordAuthentication, press Esc to exit the editing mode, and enter: wq to save and exit. Here we can use the vi command, or download it to the local editor.

We can restart the server to take effect, or run and restart SSHD.

 systemctl restart sshd