[Dovecot] Fail2Ban and the Dovecot log
Bill Landry
bill at inetmsg.com
Mon May 11 23:06:20 EEST 2009
Lou Duchez wrote:
> Is there any way to disable the "dovecot: " at the beginning of each
> line of the log? Fail2Ban responds poorly to it. I know there are a
> number of sites with "failregex" strings for Fail2Ban and Dovecot, but
> I've tried them all, and they don't work, at least with the latest
> Fail2ban and the latest Dovecot. The Fail2Ban wiki is pretty clear
> about why there will be a problem:
>
> "In order for a log line to match your failregex, it actually has to
> match in two parts: the beginning of the line has to match a timestamp
> pattern or regex, and the remainder of the line has to match your
> failregex.".
>
> So in other words, Fail2Ban expects that each line of the log will start
> with a timestamp.
Hmmm, I'm using:
dovecot --version
1.2.rc3
rpm -q fail2ban
fail2ban-0.8.3-18.fc10.noarch
and this seems to work just fine for me:
failregex = auth.*passwd.*,<HOST>\).*(unknown user|Password mismatch)
in my /etc/fail2ban/filter.d/dovecot.conf.
Bill
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