1# Fail2Ban configuration file 2# 3# Author: Guido Bozzetto 4# Modified: Cyril Jaquier 5# 6# make "f2b-<name>" chain to match drop IP 7# make "f2b-<name>-log" chain to log and drop 8# insert a jump to f2b-<name> from -I <chain> if proto/port match 9# 10# 11 12[INCLUDES] 13 14before = iptables-common.conf 15 16[Definition] 17 18# Option: actionstart 19# Notes.: command executed on demand at the first ban (or at the start of Fail2Ban if actionstart_on_demand is set to false). 20# Values: CMD 21# 22actionstart = <iptables> -N f2b-<name> 23 <iptables> -A f2b-<name> -j <returntype> 24 <iptables> -I <chain> 1 -p <protocol> -m multiport --dports <port> -j f2b-<name> 25 <iptables> -N f2b-<name>-log 26 <iptables> -I f2b-<name>-log -j LOG --log-prefix "$(expr f2b-<name> : '\(.\{1,23\}\)'):DROP " --log-level warning -m limit --limit 6/m --limit-burst 2 27 <iptables> -A f2b-<name>-log -j <blocktype> 28 29# Option: actionflush 30# Notes.: command executed once to flush IPS, by shutdown (resp. by stop of the jail or this action) 31# Values: CMD 32# 33actionflush = <iptables> -F f2b-<name> 34 <iptables> -F f2b-<name>-log 35 36# Option: actionstop 37# Notes.: command executed at the stop of jail (or at the end of Fail2Ban) 38# Values: CMD 39# 40actionstop = <iptables> -D <chain> -p <protocol> -m multiport --dports <port> -j f2b-<name> 41 <actionflush> 42 <iptables> -X f2b-<name> 43 <iptables> -X f2b-<name>-log 44 45# Option: actioncheck 46# Notes.: command executed once before each actionban command 47# Values: CMD 48# 49actioncheck = <iptables> -n -L f2b-<name>-log >/dev/null 50 51# Option: actionban 52# Notes.: command executed when banning an IP. Take care that the 53# command is executed with Fail2Ban user rights. 54# Tags: See jail.conf(5) man page 55# Values: CMD 56# 57actionban = <iptables> -I f2b-<name> 1 -s <ip> -j f2b-<name>-log 58 59# Option: actionunban 60# Notes.: command executed when unbanning an IP. Take care that the 61# command is executed with Fail2Ban user rights. 62# Tags: See jail.conf(5) man page 63# Values: CMD 64# 65actionunban = <iptables> -D f2b-<name> -s <ip> -j f2b-<name>-log 66 67[Init] 68 69