[Dovecot] fail2ban

Gordon Grubert gordon.grubert+lists at uni-greifswald.de
Fri Oct 4 22:55:18 EEST 2013


Hi,

On 10/04/2013 07:47 AM, Nick Edwards wrote:
> For dovecot 2.1
> 
> as per wiki2,  is this still valid?  noticed a problem before and saw
> it does seem to be triggering, I use:
> 
> maxretry = 6
> findtime = 600
> bantime = 3600
> 
> and there was like, 2400 hits in 4 minutes, it is pointing to the
> correct log file, but I am no expert with fail2ban, so not sure if the
> log format of today is compatible with the wiki2 entry
> 
> 
> filter.d/dovecot.conf
> [Definition]
> failregex = (?: pop3-login|imap-login): (?:Authentication
> failure|Aborted login \(auth failed|Aborted login \(tried to use
> disabled|Disconnected \(auth failed).*rip=(?P<host>\S*),.*
> ignoreregex =
> 

this is no problem of dovecot. Nevertheless, for analysis, you can use
fail2ban-regex when applying your filter to your logfile.

Best regards,
Gordon
-- 
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