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FAIL2BAN(1)                                                        FAIL2BAN(1)

       fail2ban - 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).

       Fail2Ban is able to reduce the rate of incorrect authentications attempts however it cannot eliminate the  risk
       that  weak authentication presents.  Configure services to use only two factor or public/private authentication
       mechanisms if you really want to protect services.

       A local user is able to inject messages into syslog and using a Fail2Ban jail that reads from syslog, they  can
       effectively  trigger  a  DoS  attack  against  any IP. Know this risk and configure Fail2Ban/grant shell access


       Manual page written by Daniel Black and Yaroslav Halchenko

       Report bugs to

       Copyright (C) 2013
       Copyright of modifications held by their respective authors.  Licensed under the GNU General Public License  v2

       fail2ban-server(1) fail2ban-client(1) fail2ban-regex(1) jail.conf(5)

Fail2Ban                          March 2013                       FAIL2BAN(1)