Alexandre,

pergunta idiota... o fail2ban tá rodando?

o que aparece no log do fail2ban? vc consegue gerar um "bloqueio" para
teste?

Abraços,
Marcelo

Alexandre Balistrieri wrote:
> Meu problema persiste.
>
> O fail2ban parece não reagir ou o tempo de ração é muito estranho e ainda não 
> consegui entender porque não reage. No site diz que o tempo de reação dele 
> depende muito do syslog bufferizado que no meu caso parece estar desligado. 
> De qualquer maneira já deixei ele rodando horas e nada de reagir.
>
> Estou fazendo manualmente a coleta de IPs e incluindo-os numa 'chain' própria 
> de 'input' no 'iptables'.
>
> /var/log/mail.warn:
> --------------------
> ...
> ...
> ...
> Apr 29 09:21:44 guarani postfix/smtpd[28361]: warning: 
> unknown[177.16.254.44]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:45 guarani postfix/smtpd[27633]: warning: 
> unknown[189.99.142.107]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:45 guarani postfix/smtpd[24032]: warning: 
> unknown[189.26.68.213]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:46 guarani postfix/smtpd[28410]: warning: unknown[187.43.14.45]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:21:47 guarani postfix/smtpd[28528]: warning: unknown[189.105.0.42]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:21:49 guarani postfix/smtpd[5468]: warning: unknown[189.114.4.176]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:21:49 guarani postfix/smtpd[27586]: warning: 
> unknown[190.27.58.228]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:50 guarani postfix/smtpd[28215]: warning: 
> unknown[190.122.116.175]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:50 guarani postfix/smtpd[28722]: warning: 
> unknown[189.81.72.249]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:51 guarani postfix/smtpd[28406]: warning: unknown[187.43.14.45]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:21:53 guarani postfix/smtpd[27927]: warning: 
> unknown[186.220.201.155]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:55 guarani postfix/smtpd[28914]: warning: 
> unknown[190.172.253.145]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:55 guarani postfix/smtpd[28416]: warning: 
> unknown[189.70.195.161]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:21:56 guarani postfix/smtpd[24732]: warning: 
> 189-46-28-191.dsl.telesp.net.br[189.46.28.191]: SASL LOGIN authentication 
> failed: authentication failure
> Apr 29 09:21:56 guarani postfix/smtpd[27691]: warning: unknown[201.89.192.3]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:21:57 guarani postfix/smtpd[10908]: warning: 
> 189-19-227-148.dsl.telesp.net.br[189.19.227.148]: SASL LOGIN authentication 
> failed: authentication failure
> Apr 29 09:22:02 guarani postfix/smtpd[25326]: warning: unknown[189.13.200.5]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:22:07 guarani postfix/smtpd[28406]: warning: 
> unknown[190.244.176.248]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:22:09 guarani postfix/smtpd[28832]: warning: unknown[187.126.5.3]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:22:10 guarani postfix/smtpd[25299]: warning: unknown[187.74.69.61]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:22:10 guarani postfix/smtpd[27942]: warning: unknown[190.51.31.87]: 
> SASL LOGIN authentication failed: authentication failure
> Apr 29 09:22:10 guarani postfix/smtpd[27873]: warning: 
> unknown[190.176.157.4]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:22:12 guarani postfix/smtpd[28903]: warning: 
> unknown[189.104.241.131]: SASL LOGIN authentication failed: authentication 
> failure
> Apr 29 09:22:12 guarani postfix/smtpd[28564]: warning: 
> unknown[177.27.38.161]: SASL LOGIN authentication failed: authentication 
> failure
> ...
> ...
> ...
>
>
> /var/log/fail2ban.log:
> ----------------------
> ...
> ...
> 2011-04-29 09:10:49,427 fail2ban.jail   : INFO   Jail 'sasl-iptables' started
> 2011-04-29 09:15:33,412 fail2ban.jail   : INFO   Jail 'sasl-iptables' stopped
> 2011-04-29 09:15:33,415 fail2ban.server : INFO   Changed logging target to 
> /var/log/fail2ban.log for Fail2ban v0.8.4
> 2011-04-29 09:15:33,416 fail2ban.jail   : INFO   Creating new jail 
> 'sasl-iptables'
> 2011-04-29 09:15:33,416 fail2ban.jail   : INFO   Jail 'sasl-iptables' uses 
> poller
> 2011-04-29 09:15:33,434 fail2ban.filter : INFO   Added logfile = 
> /var/log/mail.warn
> 2011-04-29 09:15:33,435 fail2ban.filter : INFO   Set maxRetry = 1
> 2011-04-29 09:15:33,437 fail2ban.filter : INFO   Set findtime = 600
> 2011-04-29 09:15:33,438 fail2ban.actions: INFO   Set banTime = 7200
> 2011-04-29 09:15:33,454 fail2ban.jail   : INFO   Jail 'sasl-iptables' started
>
>
> Jail.conf:
> ----------
> ...
> ...
> [sasl-iptables]
>
> enabled  = true
> filter   = sasl
> backend  = polling
> port = smtp
> action   = iptables[name=sasl, port=smtp, protocol=tcp]
> #           sendmail-whois[name=sasl, [email protected]]
> logpath  = /var/log/mail.warn
> maxretry = 1
> findtime = 600
> bantime = 7200
> ...
> ...
> ...
> [postfix]
>
> enabled  = true 
> port     = smtp
> filter   = postfix
> action  = iptables[name=postfix, port=smtp, protocol=tcp]
> maxretry = 3
> findtime = 3600
> bantime = 43200
> logpath  = /var/log/mail
>
>
>
> fail2ban.conf:
> ---------------
> ...
> ...
> [Definition]
>
> loglevel = 3
>
> logtarget = /var/log/fail2ban.log
>
> socket = /var/run/fail2ban/fail2ban.sock
> #[SMTP]
> #enabled = true
> #logfile = /var/log/mail
>
>
>   

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               BIOTERIO   Faculdade de Medicina USP
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