This works for me
[L_catalina]
failregex = ^.*WARN  o\.a\.g\.r\.auth\.AuthenticationService -
Authentication attempt from <HOST> for user "[^"]*" failed\.$

datepattern = ^%%H:%%M:%%S.%%f

сб, 30 сент. 2023 г. в 13:11, khmadhu <[email protected]>:

>
> Tried modifying filter's in /etc/fail2ban/filter.d/guacamole.conf but no
> luck.
>
> #default regex
> #failregex = ^.*\nWARNING: Authentication attempt from <HOST> for user
> "[^"]*" failed\.$
>
> tried below.
> failregex = \bAuthentication attempt from \[<HOST>(?:,.*)?\] for user ".*"
> failed\.
> #failregex = +\b[Aa]uthentication attempt from \[<HOST>(?:,[^\]]*)?\]
> (?:for user (?:"[^"]*" )?)?failed\.\s*$
>
>
>
> On Sat, Sep 30, 2023 at 2:39 PM David Barber <[email protected]>
> wrote:
>
>> I came across the same issue a few years ago, fwir the default regex for
>> guacamole in fail2ban was at fault and amending that i got it to work but i
>> don't rem any details other than that sorry.
>>
>> --
>> Regards
>> David Barber
>>
>>
>>
>> khmadhu wrote:
>>
>> Hi,
>> In catalina.out file the failed attempts its logging.
>>
>> [2023-09-30 08:22:20] [info] 08:22:20.043 [http-nio-8080-exec-12] INFO
>>  o.a.g.a.l.AuthenticationProviderService - User "gkhjk" did not
>> successfully authenticate against any LDAP server.
>> [2023-09-30 08:22:20] [info] 08:22:20.043 [http-nio-8080-exec-12] WARN
>>  o.a.g.r.auth.AuthenticationService - Authentication attempt from  *IP*
>> for user "gkhjk" failed.
>>
>> In the fail2ban log file its not.
>>
>> 023-09-30 08:18:16,015 fail2ban.filter         [212019]: INFO    Added
>> logfile: '/var/log/tomcat9/catalina.out' (pos = 78668031, hash = 87a1ded384)
>> 2023-09-30 08:18:16,016 fail2ban.jail           [212019]: INFO    Jail
>> 'sshd' started
>> 2023-09-30 08:18:16,017 fail2ban.jail           [212019]: INFO    Jail
>> 'guacamole' started
>>
>>
>>
>>
>> On Sat, Sep 30, 2023 at 1:51 PM Robert Dinse <[email protected]>
>> <[email protected]> wrote:
>>
>>>
>>>      Did you look in the logs to see if its picking up the attempts?
>>>
>>>
>>> -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
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>>> Hosting.
>>>     Knowledgeable human assistance, not telephone trees or script
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>>>   See our web site: http://www.eskimo.com/ (206) 812-0051 or (800)
>>> 246-6874.
>>>
>>> On Sat, 30 Sep 2023, khmadhu wrote:
>>>
>>> > Date: Sat, 30 Sep 2023 13:49:04 +0530
>>> > From: khmadhu <[email protected]>
>>> > Reply-To: [email protected]
>>> > To: [email protected]
>>> > Subject: Re: Captcha protection to stop brute force attacks
>>> >
>>> > Hi Ivan,
>>> > I tried below in fail2ban default config jail.conf file, but after 5
>>> > attempts it's still not blocking!, anything missing?.
>>> >
>>> > [guacamole]
>>> > enabled = true
>>> > bantime = 86400
>>> > maxretry = 5
>>> > port     = http,https,8080
>>> > logpath  = /var/log/tomcat9/catalina.out
>>> >
>>> >
>>> >> From below command I checked the fail2ban guacamole client status
>>> > fail2ban-client status guacamole
>>> > output:
>>> >
>>> > Status for the jail: guacamole
>>> > |- Filter
>>> > |  |- Currently failed: 0
>>> > |  |- Total failed: 0
>>> > |  `- File list: /var/log/tomcat9/catalina.out
>>> > `- Actions
>>> >   |- Currently banned: 0
>>> >   |- Total banned: 0
>>> >   `- Banned IP list:
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > On Sat, Sep 30, 2023 at 1:24 PM khmadhu <[email protected]> wrote:
>>> >
>>> >> Hi Ivan,
>>> >>
>>> >> Thanks for the link, looks like fail2ban is the way to go for now.
>>> >>
>>> >>
>>> >> On Sat, Sep 30, 2023 at 12:18 PM Ivanmarcus
>>> <[email protected]> <[email protected]>
>>> >> wrote:
>>> >>
>>> >>> As far as I'm aware there isn't any work being done on this
>>> presently,
>>> >>> however it was discussed back in 2020. The following link may be of
>>> some
>>> >>> interest:
>>> >>>
>>> >>> https://lists.apache.org/thread/5pkbqsyks4g1vdh7vnxv20lzr11jzvnm
>>> >>>
>>> >>>
>>> >>> ---------------------------------------------------------------------
>>> >>> To unsubscribe, e-mail: [email protected]
>>> >>> For additional commands, e-mail: [email protected]
>>> >>>
>>> >>>
>>> >>
>>> >> --
>>> >> Thanks & Regards
>>> >> Madhusudan
>>> >> 9844117475
>>> >> Bengaluru-12.
>>> >>
>>> >
>>> >
>>> > --
>>> > Thanks & Regards
>>> > Madhusudan
>>> > 9844117475
>>> > Bengaluru-12.
>>> >
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: [email protected]
>>> For additional commands, e-mail: [email protected]
>>
>>
>>
>> --
>> Thanks & Regards
>> Madhusudan
>> 9844117475
>> Bengaluru-12.
>>
>>
>>
>>
>
> --
> Thanks & Regards
> Madhusudan
> 9844117475
> Bengaluru-12.
>

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