fail2ban/config/action.d/iptables.conf

# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision$
#

[Definition]

# Option:  fwstart
# Notes.:  command executed once at the start of Fail2Ban.
# Values:  CMD  Default:
#
actionstart = iptables -N fail2ban-<name>
              iptables -A fail2ban-<name> -j RETURN
              iptables -I INPUT -p <protocol> --dport <port> -j fail2ban-<name>

# Option:  fwend
# Notes.:  command executed once at the end of Fail2Ban
# Values:  CMD  Default:
#
actionstop = iptables -D INPUT -p <protocol> --dport <port> -j fail2ban-<name>
             iptables -F fail2ban-<name>
             iptables -X fail2ban-<name>

# Option:  fwcheck
# Notes.:  command executed once before each fwban command
# Values:  CMD  Default:
#
actioncheck = iptables -L INPUT | grep -q fail2ban-<name>

# Option:  fwban
# Notes.:  command executed when banning an IP. Take care that the
#          command is executed with Fail2Ban user rights.
# Tags:    <ip>  IP address
#          <failures>  number of failures
#          <failtime>  unix timestamp of the last failure
#          <bantime>  unix timestamp of the ban time
# Values:  CMD
# Default: iptables -I INPUT 1 -s <ip> -j DROP
#
actionban = iptables -I fail2ban-<name> 1 -s <ip> -j DROP

# Option:  fwunban
# Notes.:  command executed when unbanning an IP. Take care that the
#          command is executed with Fail2Ban user rights.
# Tags:    <ip>  IP address
#          <bantime>  unix timestamp of the ban time
#          <unbantime>  unix timestamp of the unban time
# Values:  CMD
# Default: iptables -D INPUT -s <ip> -j DROP
#
actionunban = iptables -D fail2ban-<name> -s <ip> -j DROP

[Init]

# Defaut name of the chain
#
name = default

# Option:  port
# Notes.:  specifies port to monitor
# Values:  [ NUM | STRING ]  Default:
#
port = ssh

# Option:  protocol
# Notes.:  internally used by config reader for interpolations.
# Values:  [ tcp | udp | icmp | all ] Default: tcp
#
protocol = tcp