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# Fail2Ban configuration file
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#
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# Author: Edgar Hoch
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# Copied from iptables-new.conf and modified for use with firewalld by Edgar Hoch.
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# It uses "firewall-cmd" instead of "iptables".
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# firewall-cmd is based on the command of version firewalld-0.3.4-1.fc19.
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[Definition]
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actionstart = firewall-cmd --direct --add-chain ipv4 filter fail2ban-<name>
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firewall-cmd --direct --add-rule ipv4 filter fail2ban-<name> 1000 -j RETURN
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firewall-cmd --direct --add-rule ipv4 filter <chain> 0 -m state --state NEW -p <protocol> --dport <port> -j fail2ban-<name>
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# The following rule does not work, because firewalld keeps its own database of firewall rules.
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# firewall-cmd --direct --passthrough ipv4 -F fail2ban-<name>
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# The better rule would be the following, but firewall-cmd has not implemented this command with firewalld-0.3.3-2.fc19 .
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# firewall-cmd --direct --flush-chain ipv4 filter fail2ban-<name>
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# The following is a workaround using a loop to implement the --flush-chain command.
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actionstop = firewall-cmd --direct --remove-rule ipv4 filter <chain> 0 -m state --state NEW -p <protocol> --dport <port> -j fail2ban-<name>
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( IFS='|' ; for r in $( firewall-cmd --direct --get-rules ipv4 filter fail2ban-<name> | tr '\n' '|' ) ; do eval firewall-cmd --direct --remove-rule ipv4 filter fail2ban-<name> $r ; done )
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firewall-cmd --direct --remove-chain ipv4 filter fail2ban-<name>
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actioncheck = firewall-cmd --direct --get-chains ipv4 filter | grep -q 'fail2ban-<name>[ \t]'
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actionban = firewall-cmd --direct --add-rule ipv4 filter fail2ban-<name> 0 -s <ip> -j DROP
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actionunban = firewall-cmd --direct --remove-rule ipv4 filter fail2ban-<name> 0 -s <ip> -j DROP
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[Init]
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# Defaut name of the chain
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#
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name = default
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# Option: port
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# Notes.: specifies port to monitor
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# Values: [ NUM | STRING ] Default:
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#
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port = ssh
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# Option: protocol
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# Notes.: internally used by config reader for interpolations.
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# Values: [ tcp | udp | icmp | all ] Default: tcp
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#
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protocol = tcp
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# Option: chain
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# Notes specifies the iptables chain to which the fail2ban rules should be
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# added
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# Values: STRING Default: INPUT
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chain = INPUT_direct
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