A set of server and client programs to limit brute force authentication attempts.
Fail2Ban consists of a client, server and configuration files to limit brute force authentication attempts.
The server program fail2ban-server is responsible for monitoring log files and issuing ban/unban commands. It gets configured through a simple protocol by fail2ban-client, which can also read configuration files and issue corresponding configuration commands to the server.
For details on the configuration of fail2ban see the jail.conf(5) manual page. A jail (as specified in jail.conf) couples filters and actions definitions for any given list of files to get monitored.
For details on the command-line options of fail2ban-server see the fail2ban-server(1) manual page.
For details on the command-line options and commands for configuring the server via fail2ban-client see the fail2ban-client(1) manual page.
For testing regular expressions specified in a filter using the fail2ban-regex program may be of use and its manual page is fail2ban-regex(1).
/etc/fail2ban/*
Manual page written by Daniel Black and Yaroslav Halchenko
Report bugs to https://github.com/fail2ban/fail2ban/issues
Copyright © 2013
Copyright of modifications held by their respective authors. Licensed under the GNU General Public License v2 (GPL).
fail2ban-server(1) fail2ban-client(1) fail2ban-regex(1) jail.conf(5)