Talk:Block SMTP Authentication Attacks With Fail2Ban

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configure fail2ban to startup on boot

chkconfig --add fail2ban
# chkconfig fail2ban on

Informative sources

Protecting your server from attacks with fail2ban

  • tips for setting up fail2ban for apache, dovecot, etc

Blocking brute force attacks to Dovecot on CentOS

  • has clear regex example. wrongly suggests directly editing jail.conf

How To Protect SSH with fail2ban on CentOS 6

  • very current, however, specific to protecting ssh, not covering dovecot

Using Fail2ban with Dovecot

  • somewhat outdated. documentation from dovecot site.

Secure a CentOS 6 Mail server with Fail2ban

  • in theory this should be the most current and specific guide.
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