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49 lines
1.9 KiB
Plaintext
49 lines
1.9 KiB
Plaintext
## Version 2022/08/06
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# Fail2Ban configuration file
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#
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# Because of the --remove-rules in stop this action requires firewalld-0.3.8+
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[INCLUDES]
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before = firewallcmd-common.conf
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[Definition]
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actionstart = firewall-cmd --direct --add-chain <family> filter f2b-<name>
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firewall-cmd --direct --add-rule <family> filter f2b-<name> 1000 -j RETURN
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firewall-cmd --direct --add-rule <family> filter <chain> 0 -m state --state NEW -p <protocol> -m multiport --dports <port> -j f2b-<name>
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actionstop = firewall-cmd --direct --remove-rule <family> filter <chain> 0 -m state --state NEW -p <protocol> -m multiport --dports <port> -j f2b-<name>
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firewall-cmd --direct --remove-rules <family> filter f2b-<name>
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firewall-cmd --direct --remove-chain <family> filter f2b-<name>
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actioncheck = firewall-cmd --direct --get-chains <family> filter | sed -e 's, ,\n,g' | grep -q 'f2b-<name>$'
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actionban = firewall-cmd --direct --add-rule <family> filter f2b-<name> 0 -s <ip> -j <blocktype>
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actionunban = firewall-cmd --direct --remove-rule <family> filter f2b-<name> 0 -s <ip> -j <blocktype>
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# DEV NOTES:
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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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#
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# Output:
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#
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# $ firewall-cmd --direct --add-chain ipv4 filter fail2ban-name
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# success
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# $ firewall-cmd --direct --add-rule ipv4 filter fail2ban-name 1000 -j RETURN
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# success
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# $ sudo firewall-cmd --direct --add-rule ipv4 filter INPUT_direct 0 -m state --state NEW -p tcp -m multiport --dports 22 -j fail2ban-name
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# success
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# $ firewall-cmd --direct --get-chains ipv4 filter
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# fail2ban-name
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# $ firewall-cmd --direct --get-chains ipv4 filter | od -h
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# 0000000 6166 6c69 6232 6e61 6e2d 6d61 0a65
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# $ firewall-cmd --direct --get-chains ipv4 filter | grep -Eq 'fail2ban-name( |$)' ; echo $?
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# 0
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# $ firewall-cmd -V
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# 0.3.8
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