camun
(usa Ubuntu)
Enviado em 31/07/2013 - 08:19h
Prezados amigos, tenho um servidor Ubuntu 10.10 rodando postfix, amavis-new, dovecote, spamassasin.
e tenho tido problemas de tentativas de conexoes simultaneas de um mesmo numero IP e fica o tempo todo acontecendo, até que eu veja o log e pegue o IP e bloqueie no proprio firewall, entao minha duvida é, tem como eu bloquear no postfix a tentativa de conexoes simultaneas do mesmo numero iP????
segue abaixo o log isso fica direto tentando conectar e gostaria que depois de algumas tentativas ele fosse bloqueado automaticamente sem eu precisar pegar o numero IP ir no FW(iptables) e bloquear.
Conto com voces.
Lembrando que o IP do SPAM é esse 212.150.93.82
Jul 31 08:14:03 mail dovecot: pop3-login: Disconnected: Inactivity (auth failed, 1 attempts): user=<amy>, Jul 31 08:11:04 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<alvin>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:04 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<adrian>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:04 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<albert>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:04 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<alexandria>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:04 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<admin2>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:05 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<agent>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:05 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<alicia>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:05 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<alyssa>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:07 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<alpha>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:07 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<alan>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:07 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<aerial>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:07 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<accounts>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10
Jul 31 08:11:07 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<alfred>, method=PLAIN, rip=212.150.93.82, lip=192.168.0.10