I can't login in Debian server with putty

Question

I use putty in windows to login in my Debian server. But when I set my server address and type root username and type server password putty shows

access denied for password

Now how can I fix that to access server?

Answer 1

At first check SSH-server config at /etc/ssh/sshd_config in Debian. Perhaps there can be any parameter that denied remote access.