I have been using public key authentication for SSH and really like it. It is much more secure than password authentication and easier to use once you set it up. Is there a way to setup ISPConfig so that any access requires public key authentication rather than a password? That way only users who have the private key on their client machine could access ISPConfig. Even better would be if the entire ISPConfig Apache server used public key. That way I could secure other applications like phpMyAdmin that are installed on ISPConfig's dedicated Apache server.