Hi.

What about Your 'Findtime' settings in Your jail.conf or jail.local

/Finn

Den 17-10-2020 kl. 08:14 skrev Dominic Raferd:
On Sat, 17 Oct 2020 at 02:40, Dan Egli <d...@newideatest.site> wrote:

On 10/16/2020 11:39 AM, Dan Egli wrote:
Okay.  fail2ban-regex finally recognised something. The string I
searched for was:
H=(.*) <HOST> .* AUTH command used when not advertised

I'll try plugging that into my exim.local and see how it goes



Now fail2ban sees it, but it refuses to ACT on it!

# grep 103.154.241.29 fail2ban.log -c
113

Wait a minute, 113 times, and yet it has never banned them!?
# grep "Ban 103.154.241.29" fail2ban.log -c
0

What on earth happened here? the exim.local filter has a maxtries of
5!!! Not 500!

---- [ Cut here ] ---
[INCLUDES]

before = exim-common.conf

[Definition]
failregex = <HOST> locally blacklisted for a bruteforce
             H=(.*) <HOST> .* AUTH command used when not advertised
datepattern = %%Y-%%m-%%d %%H:%%M:%%S
maxtries = 5
mdre-normal =
mode = normal
ignoreregex =
--- [ Cut Here ] ---

I did strip out comments for brevity. So, did I do something wrong or is
something funky going on here?

Have you enabled exim in your jail.local? e.g.
/etc/fail2ban/jail.local:
...
[exim]
enabled = true
...

(and then reloaded fail2ban e.g. systemctl reload-or-restart fail2ban)


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