John Merritt wrote:
. . . is there anything you can do to stop these attempts, other than not running ssh?
I have found a non-standard port to be satisfactory so far.
APF firewall has a built-in feature, but I am not sure it works on non-standard ports.
I am thinking about installing this, http://denyhosts.sourceforge.net/, in case any persistent script finds my port. I have not tried this yet, so I do not know.