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# Fail2Ban configuration file
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#
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# Author: Daniel Black
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#
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# This is for ipset protocol 4 (ipset v4.2). If you have a later version
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# of ipset try to use the iptables-ipset-proto6.conf as it does some things
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# nicer.
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#
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# This requires the program ipset which is normally in package called ipset.
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#
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# IPset was a feature introduced in the linux kernel 2.6.39 and 3.0.0 kernels.
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#
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# If you are running on an older kernel you make need to patch in external
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# modules. Debian squeeze can do this with:
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# apt-get install xtables-addons-source
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# module-assistant auto-install xtables-addons
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#
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# Debian wheezy and above uses protocol 6
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[INCLUDES]
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before = iptables-common.conf
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[Definition]
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# Option: actionstart
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# Notes.: command executed on demand at the first ban (or at the start of Fail2Ban if actionstart_on_demand is set to false).
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# Values: CMD
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#
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actionstart = ipset --create f2b-<name> iphash
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<iptables> -I <chain> -p <protocol> -m multiport --dports <port> -m set --match-set f2b-<name> src -j <blocktype>
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# Option: actionflush
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# Notes.: command executed once to flush IPS, by shutdown (resp. by stop of the jail or this action)
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# Values: CMD
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#
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actionflush = ipset --flush f2b-<name>
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# Option: actionstop
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# Notes.: command executed at the stop of jail (or at the end of Fail2Ban)
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# Values: CMD
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#
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actionstop = <iptables> -D <chain> -p <protocol> -m multiport --dports <port> -m set --match-set f2b-<name> src -j <blocktype>
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<actionflush>
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ipset --destroy f2b-<name>
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# Option: actionban
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# Notes.: command executed when banning an IP. Take care that the
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# command is executed with Fail2Ban user rights.
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# Tags: See jail.conf(5) man page
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# Values: CMD
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#
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actionban = ipset --test f2b-<name> <ip> || ipset --add f2b-<name> <ip>
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# Option: actionunban
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# Notes.: command executed when unbanning an IP. Take care that the
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# command is executed with Fail2Ban user rights.
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# Tags: See jail.conf(5) man page
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# Values: CMD
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#
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actionunban = ipset --test f2b-<name> <ip> && ipset --del f2b-<name> <ip>
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[Init]
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