I've tried enabling SSH logins in my linux server. It can establish connection just fine trough my private key. I also went to
/etc/ssh/ssh_config and edited the following field like this:
But it still lets me login trough a username/password when I use putty or winSCP. Right now I can login both from user/password and SSH keys, which is rather pointless as far as security goes. What else do I need to do to ONLY allow SSH logins?