On 03/09/2013 09:57 AM, Tilman Schmidt wrote:
So it seems there is no way to identify password bruteforcing attempts on servers which don't accept password authentication in the first place.
Yes... you can't detect what you don't receive. If you want to block hosts that are scanning for vulnerabilities, you could set up a honeypot. Watch its logs and ship off the firewall rules to a device at the edge of your network.