On 2020-05-13 4:44 PM, Doug Preston via Fail2ban-users wrote:
>>> I don't get any hits even though there were 163 lines with this in it.
>>>
>> Provide samples of the lines that are not matching.
>> And your postfix.conf filter.
> postfix.conf
>
Using the info you provided, the result is below. Attached is the modified
conf file that succeeded.
The "prefregex" line failed always.
Running tests
=============
Use failregex file : /t/tmp3/f2b-test.conf
Use log file : /t/tmp3/f2b-test.log
Use encoding : UTF-8
Results
=======
Failregex: 5 total
|- #) [# of hits] regular expression
| 1) [5] ^.*mail postfix/smtpd.* lost connection after EHLO from
unknown\[<HOST>\].*
`-
Ignoreregex: 0 total
Date template hits:
|- [# of hits] date format
| [5] {^LN-BEG}(?:DAY )?MON Day %k:Minute:Second(?:\.Microseconds)?(?: ExYear)?
`-
Lines: 5 lines, 0 ignored, 5 matched, 0 missed
[processed in 0.01 sec]
--
James Moe
moe dot james at sohnen-moe dot com
520.743.3936
Think.
[Definition]
# but this is the section from postfix.conf with all the regex working
# except for the EHLO lines
# prefregex = ^%(__prefix_line)s<mdpr-<mode>> <F-CONTENT>.+</F-CONTENT>
failregex = ^.*mail postfix/smtpd.* lost connection after EHLO from
unknown\[<HOST>\].*
mdpr-normal= (?:\w+: reject:|(?:improper command pipelining|too many errors)
after \S+)
mdre-normal=^RCPT from [^[]*\[<HOST>\]%(_port)s: 55[04] 5\.7\.1\s
^RCPT from [^[]*\[<HOST>\]%(_port)s: 45[04] 4\.7\.\d+ (?:Service
unavailable\b|Client host rejected: cannot find your (reverse)?hostname\b)
^RCPT from [^[]*\[<HOST>\]%(_port)s: 450 4\.7\.\d+ (<[^>]*>)?: Helo command
rejected: Host not found\b
^EHLO from [^[]*\[<HOST>\]%(_port)s: 504 5\.5\.\d+ (<[^>]*>)?: Helo command
rejected: need fully-qualified hostname\b
^(RCPT|VRFY) from [^[]*\[<HOST>\]%(_port)s: 550 5\.1\.1\s
^RCPT from [^[]*\[<HOST>\]%(_port)s: 450 4\.1\.\d+ (<[^>]*>)?: Sender address
rejected: Domain not found\b
^from [^[]*\[<HOST>\]%(_port)s:?lost connection after EHLO from
unknown\[<HOST>\]\.*(mail\-a\.webstudio[a-z]*\.com)[^[]*\[<HOST>\]
^.*mail postfix/smtpd.* lost connection after EHLO from
unknown\[<HOST>\].*lost\ connection\ after\ EHLO\ from\
unknown\[<HOST>\].*(\w+\ \w+\ webstudio[a-z]*\.com)[^[]*\[<HOST>\]
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