fail2ban/config/filter.d/recidive.conf

# Fail2Ban filter for repeat bans
#
# This filter monitors the fail2ban log file, and enables you to add long 
# time bans for ip addresses that get banned by fail2ban multiple times.
#
# Reasons to use this: block very persistent attackers for a longer time, 
# stop receiving email notifications about the same attacker over and 
# over again.
#
# This jail is only useful if you set the 'findtime' and 'bantime' parameters 
# in jail.conf to a higher value than the other jails. Also, this jail has its
# drawbacks, namely in that it works only with iptables, or if you use a 
# different blocking mechanism for this jail versus others (e.g. hostsdeny 
# for most jails, and shorewall for this one).

[INCLUDES]

# Read common prefixes. If any customizations available -- read them from
# common.local
before = common.conf

[Definition]

_daemon = (?:fail2ban(?:-server|\.actions)\s*)

# The name of the jail that this filter is used for. In jail.conf, name the jail using
# this filter 'recidive', or supply another name with `filter = recidive[_jailname="jail"]`
_jailname = recidive

failregex = ^%(__prefix_line)s(?:\s*fail2ban\.actions\s*%(__pid_re)s?:\s+)?NOTICE\s+\[(?!%(_jailname)s\])(?:.*)\]\s+Ban\s+<HOST>\s*$

datepattern = ^{DATE}

ignoreregex = 

journalmatch = _SYSTEMD_UNIT=fail2ban.service PRIORITY=5

# Author: Tom Hendrikx, modifications by Amir Caspi