On 03/19/2014 10:35 AM, Mike McCarthy wrote: > Years ago I moved sshd off port 22, disabled password logins and use > certificates after noticing my logs filling up with numerous daily > attempts at hacking into sshd. > Not only do I not use port 22, no passwords, and keys with passphrases, the port I use for SSH is also protected by port knocking. Hey, just because I'm paranoid doesn't mean they aren't out to get me! Though few, there have been remote exploits against SSHd.