base ipset support

config/action.d/iptables-ipset-proto4.conf

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+# Fail2Ban configuration file
+#
+# Author: Daniel Black
+#
+# Tested against protocol 4 (ipset v4.2)
+#
+
+[Definition]
+
+# Option:  actionstart
+# Notes.:  command executed once at the start of Fail2Ban.
+# Values:  CMD
+#
+actionstart = ipset --create fail2ban-<name> iphash
+              iptables -I INPUT -p <protocol> -m multiport --dports <port> -m set --match-set fail2ban-<name> src -j DROP
+
+# Option:  actionstop
+# Notes.:  command executed once at the end of Fail2Ban
+# Values:  CMD
+#
+actionstop = iptables -D INPUT -p <protocol> -m multiport --dports <port> -m set --match-set fail2ban-<name> src -j DROP
+             ipset --flush fail2ban-<name>
+             ipset --destroy fail2ban-<name>
+
+# Option:  actionban
+# Notes.:  command executed when banning an IP. Take care that the
+#          command is executed with Fail2Ban user rights.
+# Tags:    <ip>  IP address
+# Values:  CMD
+#
+actionban = ipset --test fail2ban-<name> <ip> ||  ipset --add fail2ban-<name> <ip> -exist
+
+# Option:  actionunban
+# Notes.:  command executed when unbanning an IP. Take care that the
+#          command is executed with Fail2Ban user rights.
+# Tags:    <ip>  IP address
+# Values:  CMD
+#
+actionunban = ipset --test fail2ban-<name> <ip> && ipset --del fail2ban-<name> <ip>
+
+[Init]
+
+# Defaut name of the chain
+#
+name = default
+
+# Option:  port
+# Notes.:  specifies port to monitor
+# Values:  [ NUM | STRING ]  Default: ssh
+#
+port = ssh
+
+# Option:  protocol
+# Notes.:  internally used by config reader for interpolations.
+# Values:  [ tcp | udp | icmp | all ] Default: tcp
+#
+protocol = tcp
+

config/action.d/iptables-ipset-proto6.conf

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+# Fail2Ban configuration file
+#
+# Author: Daniel Black
+#
+# Tested against protocol 6 (ipset v6.14)
+#
+
+[Definition]
+
+# Option:  actionstart
+# Notes.:  command executed once at the start of Fail2Ban.
+# Values:  CMD
+#
+actionstart = ipset create fail2ban-<name> hash:ip timeout <bantime>
+              iptables -I INPUT -p <protocol> -m multiport --dports <port> -m set --match-set fail2ban-<name> src -j DROP
+
+# Option:  actionstop
+# Notes.:  command executed once at the end of Fail2Ban
+# Values:  CMD
+#
+actionstop = iptables -D INPUT -p <protocol> -m multiport --dports <port> -m set --match-set fail2ban-<name> src -j DROP
+             ipset flush fail2ban-<name>
+             ipset destroy fail2ban-<name>
+
+# Option:  actionban
+# Notes.:  command executed when banning an IP. Take care that the
+#          command is executed with Fail2Ban user rights.
+# Tags:    <ip>  IP address
+# Values:  CMD
+#
+actionban = ipset add fail2ban-<name> <ip> -exist
+
+# Option:  actionunban
+# Notes.:  command executed when unbanning an IP. Take care that the
+#          command is executed with Fail2Ban user rights.
+# Tags:    <ip>  IP address
+# Values:  CMD
+#
+actionunban = ipset del fail2ban-<name> <ip> -exist
+
+[Init]
+
+# Defaut name of the chain
+#
+name = default
+
+# Option:  port
+# Notes.:  specifies port to monitor
+# Values:  [ NUM | STRING ]  Default: ssh
+#
+port = ssh
+
+# Option:  protocol
+# Notes.:  internally used by config reader for interpolations.
+# Values:  [ tcp | udp | icmp | all ] Default: tcp
+#
+protocol = tcp
+
+# Option: bantime
+# Notes:  specifies the bantime in seconds (handled internally rather than by fail2ban)
+# Values:  [ NUM ]  Default: 600
+
+bantime = 600
+
+