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: / etc / fail2ban / action.d /
Filename : iptables-ipset-proto4.conf
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# Fail2Ban configuration file
#
# Author: Daniel Black
#
# This is for ipset protocol 4 (ipset v4.2). If you have a later version
# of ipset try to use the iptables-ipset-proto6.conf as it does some things
# nicer.
# 
# This requires the program ipset which is normally in package called ipset.
#
# IPset was a feature introduced in the linux kernel 2.6.39 and 3.0.0 kernels.
#
# If you are running on an older kernel you make need to patch in external
# modules. Debian squeeze can do this with:
#   apt-get install xtables-addons-source 
#   module-assistant auto-install xtables-addons
#
# Debian wheezy and above uses protocol 6

[INCLUDES]

before = iptables-common.conf

[Definition]

# Option:  actionstart
# Notes.:  command executed on demand at the first ban (or at the start of Fail2Ban if actionstart_on_demand is set to false).
# Values:  CMD
#
actionstart = ipset --create f2b-<name> iphash
              <iptables> -I <chain> -p <protocol> -m multiport --dports <port> -m set --match-set f2b-<name> src -j <blocktype>


# Option:  actionflush
# Notes.:  command executed once to flush IPS, by shutdown (resp. by stop of the jail or this action)
# Values:  CMD
#
actionflush = ipset --flush f2b-<name>

# Option:  actionstop
# Notes.:  command executed at the stop of jail (or at the end of Fail2Ban)
# Values:  CMD
#
actionstop = <iptables> -D <chain> -p <protocol> -m multiport --dports <port> -m set --match-set f2b-<name> src -j <blocktype>
             <actionflush>
             ipset --destroy f2b-<name>

# Option:  actionban
# Notes.:  command executed when banning an IP. Take care that the
#          command is executed with Fail2Ban user rights.
# Tags:    See jail.conf(5) man page
# Values:  CMD
#
actionban = ipset --test f2b-<name> <ip> ||  ipset --add f2b-<name> <ip>

# Option:  actionunban
# Notes.:  command executed when unbanning an IP. Take care that the
#          command is executed with Fail2Ban user rights.
# Tags:    See jail.conf(5) man page
# Values:  CMD
#
actionunban = ipset --test f2b-<name> <ip> && ipset --del f2b-<name> <ip>

[Init]