similar to: ot: fail2ban dovecot setup

Copy dovecot-pop3imap.conf to dovecot-pop3imap.local.? Edit dovecot-pop3imap.local and add to the failregex: dovecot:.+auth failed.+rip=<HOST> Then run: fail2ban-regex /var/log/dovecot.log /etc/fail2ban/filter.d/dovecot-pop3imap.local and see if you get any matches. Bill On 12/16/2017 6:56 PM, voytek at sbt.net.au wrote: > I'm trying to setup and test fail2ban with dovecot >

Have you tried just using the the filter dovecot.conf come with the fail2ban? # cat /etc/fail2ban/filter.d/dovecot.conf ...... failregex = ^%(__prefix_line)s(?:%(__pam_auth)s(?:\(dovecot:auth\))?:)?\s+authentication failure; logname=\S* uid=\S* euid=\S* tty=dovecot ruser=\S* rhost=<HOST>(?:\s+user=\S*)?\s*$ ^%(__prefix_line)s(?:pop3|imap)-login: (?:Info: )?(?:Aborted

In https://wiki.dovecot.org/HowTo/Fail2Ban, for a current (I know for a fact in 2.2.36) I believe it should be filter = dovecot instead of filter = dovecot-pop3imap [root at mail ~]# ls -l /etc/fail2ban/filter.d/doveco* -rw-r--r-- 1 root root 1875 May 11 2017 /etc/fail2ban/filter.d/dovecot.conf [root at mail ~]#

Am 17.12.2017 um 00:56 schrieb voytek at sbt.net.au: > I'm trying to setup and test fail2ban with dovecot > > I've installed fail2ban, I've copied config from > https://wiki2.dovecot.org/HowTo/Fail2Ban, and, trying to test it, > > attempted multiple mail access with wrong password, but, get this: > > # fail2ban-client status dovecot-pop3imap > Status for

On Fri, May 22, 2020 2:05 pm, Adi Pircalabu wrote: > On 22-05-2020 10:38, Voytek Eymont wrote: > > Hardly a Dovecot issue. Can you please post the output of this command? > /usr/bin/fail2ban-regex /var/log/dovecot.log > /etc/fail2ban/filter.d/dovecot.conf Adi, thanks, what I get is: # /usr/bin/fail2ban-regex /var/log/dovecot.log /etc/fail2ban/filter.d/dovecot.conf Running

On Mon, December 18, 2017 3:06 am, Alex JOST wrote: > Did you enable the dovecot service in fail2ban? By default all jails are > disabled. > > /etc/fail2ban/jail.conf: > [dovecot] > enabled = true Alex, thanks no, not in jail.conf, I've put it in the (1) /etc/fail2ban/jail.local I've also added postfix, that seems to work: I've made test failed dovecot and

Hello, fail2ban does not ban offending IP. NOTICE[29784] chan_sip.c: Registration from '"user3"<sip:1005 at asterisk-ip:5060>' failed for 'offending-IP:53417' - Wrong password NOTICE[29784] chan_sip.c: Registration from '"user3"<sip:1005 at asterisk-ip:5060>' failed for ?offending-IP:53911' - Wrong password systemctl status

I'm trying to set up fail2ban with dovecot, I have it working on 'old' server Centos 6, but, not getting anywhere with 'new' server on Centos 7 using standard filters I've copied same 'filter' to new server, still get nothing any idea how to figure this out ? on old server, it logs to syslog/messages CentOS release 6.10 (Final) dovecot 2.3.10.1 (a3d0e1171) old #

If this is a small site, I recommend you download the free version of SecAst (www.telium.ca <http://www.telium.ca> ) and replace fail2ban. SecAst does NOT use the log file, or regexes, to match etc.instead it talks to Asterisk through the AMI to extract security information. Messing with regexes is a losing battle, and the lag in reading logs can allow an attacker 100+ registration

Hello I'm using the Fail2ban. I configuration below. I want to try to prevent the continuous password. Fail2ban password that does not prevent this form. (Asterisk 1.8 / Elastix interface) What could be the problem ? Asterisk log; "Registration from '<sip:3060 at sip.x.eu;transport=UDP>' failed for 'x.x.x.x:32956' - Wrong password" Fail2ban asterisk

Hi to all, @Olaf Hopp I've this filter enabled for fail2ban, my question is: could my filters overlap or interfere with those suggested by you? this is my filter: Contents of /etc/fail2ban/jail.conf: [postfix] # Ban for 10 minutes if it fails 6 times within 10 minutes enabled = true port = smtp,ssmtp filter = postfix logpath = /var/log/mail.log maxretry = 6 bantime = 600

I have turned on 'auth_debug_passwords=yes? in dovecot.conf. I?m trying to get Fail2ban to detect this log line: Sep 11 15:52:49 mail dovecot[54239]: auth-worker(10094): sql(user at bordo.com.au <mailto:user at bordo.com.au>,::1,<L2xqieNYeM4AAAAAAAAAAAAAAAAAAAAB>): Password mismatch (given password: 2) I?ve added it as the last line of my dovecot filter regex: failregex =

I solved the problem. "action.d/iptables-custom.conf" include only udp. service fail2ban restart Thank you. On Sun, Sep 13, 2015 at 9:17 PM, Andres <andres at telesip.net> wrote: > On 9/13/15 11:16 AM, Gokan Atmaca wrote: >> >> Hello >> >> I'm using the Fail2ban. I configuration below. I want to try to >> prevent the continuous password.

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]

> On 11 Sep 2017, at 5:10 pm, Christian Kivalo <ml+dovecot at valo.at> wrote: > > On 2017-09-11 08:57, James Brown wrote: >> I have turned on 'auth_debug_passwords=yes? in dovecot.conf. >> I?m trying to get Fail2ban to detect this log line: >> Sep 11 15:52:49 mail dovecot[54239]: auth-worker(10094): sql(user at bordo.com.au <mailto:user at

> On 26 Jul 2017, at 7:57 pm, Olaf Hopp <Olaf.Hopp at kit.edu> wrote: > > Dear collegues, > > many thanks for your valuable input. > > Since we are an university GEO-IP blocking is not an option for us. > Somestimes I think it should ;-) > > My "mistake" was that I had just *one* fail2ban filter for both cases: > "wrong password" and

I'm currently using postfix and dovecot, with dovecot authentication (with saslauthd) using mysql for accounts Is there any option available for me to help inhibit/prevent brute-force login attempts? Thx. Rick Rick Steeves http://www.sinister.net "The journey is the destination"

Tonight I added fail2ban to one of my webservers to test it out. Here is my step by step, as best as I could figure it out...documentation a bit sketchy. feel free to add anything to it or suggest changes. I tried to set it up to deal with ssh, http authentication, dovecot, ftp, and postfix I could find no working example for centos 6 and there is no fail2ban book available to peruse. So,

Hello list. I have a question for fail2ban for bad logins on sasl. I use sasl, sendmail and cyrus-imapd. In jail.conf I use the following syntax: [sasl-iptables] enabled = true filter = sasl backend = polling action = iptables[name=sasl, port=smtp, protocol=tcp] sendmail-whois[name=sasl, dest=my at email] logpath = /var/log/maillog maxretry = 6 and the following filter:

Hi, 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