Re: dictionary attack defense

On Tue, 21 Oct 2014 16:28:46 -0500 Cliff Hayes chayes@afo.net wrote:

Does dovecot have any dictionary attack defenses yet? In the past I have had to implement defense from outside dovecot, but since dovecot is at the front lines and therefore is the first to know I'm hoping by now there is something we can set. For example, a limit on access failures per minut/hour/day or some such. If not why not?

In my opinion, fail2ban is the right strategy to deal with a dictionary attack. Instead of adding a layer of attack detection and handling onto every outward facing service running on your server, you can centralize the detection and blocking at one place.

-- //Wegge