Yes.
You could set up multiple jails like this:
http://stuffphilwrites.com/2013/03/permanently-ban-repeat-offenders-fail2ban/

- Y


On Mon, Jul 22, 2013 at 9:23 PM, Mitch Claborn <mitch_ml@claborn.net> wrote:
I'd like to create a jail with an escalating ban period by IP address.
The initial ban would start at N seconds.  If the same IP matched that
jail within X seconds after the unban, then it would get banned again
for Y seconds, etc, etc.  Ideally there would be an unlimited number of
escalation levels, each defined in the jail parameters.  I could live
with 3 levels of escalation.

Is there any facility in fail2ban for this?


--

Mitch


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