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123 lines
3.6 KiB
Plaintext
123 lines
3.6 KiB
Plaintext
## Version 2022/08/06
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# Fail2Ban action file for firewall-cmd/ipset
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#
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# This requires:
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# ipset (package: ipset)
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# firewall-cmd (package: firewalld)
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#
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# This is for ipset protocol 6 (and hopefully later) (ipset v6.14).
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# Use ipset -V to see the protocol and version.
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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.
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[INCLUDES]
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before = firewallcmd-common.conf
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[Definition]
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actionstart = <ipstype_<ipsettype>/actionstart>
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firewall-cmd --direct --add-rule <family> filter <chain> 0 <actiontype> -m set --match-set <ipmset> src -j <blocktype>
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actionflush = <ipstype_<ipsettype>/actionflush>
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actionstop = firewall-cmd --direct --remove-rule <family> filter <chain> 0 <actiontype> -m set --match-set <ipmset> src -j <blocktype>
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<actionflush>
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<ipstype_<ipsettype>/actionstop>
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actionban = <ipstype_<ipsettype>/actionban>
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# actionprolong = %(actionban)s
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actionunban = <ipstype_<ipsettype>/actionunban>
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[ipstype_ipset]
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actionstart = ipset -exist create <ipmset> hash:ip timeout <default-ipsettime> <familyopt>
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actionflush = ipset flush <ipmset>
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actionstop = ipset destroy <ipmset>
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actionban = ipset -exist add <ipmset> <ip> timeout <ipsettime>
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actionunban = ipset -exist del <ipmset> <ip>
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[ipstype_firewalld]
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actionstart = firewall-cmd --direct --new-ipset=<ipmset> --type=hash:ip --option=timeout=<default-ipsettime> <firewalld_familyopt>
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# TODO: there doesn't seem to be an explicit way to invoke the ipset flush function using firewall-cmd
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actionflush =
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actionstop = firewall-cmd --direct --delete-ipset=<ipmset>
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actionban = firewall-cmd --ipset=<ipmset> --add-entry=<ip>
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actionunban = firewall-cmd --ipset=<ipmset> --remove-entry=<ip>
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[Init]
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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 ]
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#
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chain = INPUT_direct
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# Option: default-ipsettime
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# Notes: specifies default timeout in seconds (handled default ipset timeout only)
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# Values: [ NUM ] Default: 0 (no timeout, managed by fail2ban by unban)
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default-ipsettime = 0
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# Option: ipsettime
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# Notes: specifies ticket timeout (handled ipset timeout only)
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# Values: [ NUM ] Default: 0 (managed by fail2ban by unban)
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ipsettime = 0
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# expresion to caclulate timeout from bantime, example:
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# banaction = %(known/banaction)s[ipsettime='<timeout-bantime>']
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timeout-bantime = $([ "<bantime>" -le 2147483 ] && echo "<bantime>" || echo 0)
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# Option: ipsettype
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# Notes.: defines type of ipset used for match-set (firewalld or ipset)
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# Values: firewalld or ipset
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# Default: ipset
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ipsettype = ipset
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# Option: actiontype
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# Notes.: defines additions to the blocking rule
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# Values: leave empty to block all attempts from the host
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# Default: Value of the multiport
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actiontype = <multiport>
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# Option: allports
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# Notes.: default addition to block all ports
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# Usage.: use in jail config: banaction = firewallcmd-ipset[actiontype=<allports>]
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# for all protocols: banaction = firewallcmd-ipset[actiontype=""]
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allports = -p <protocol>
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# Option: multiport
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# Notes.: addition to block access only to specific ports
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# Usage.: use in jail config: banaction = firewallcmd-ipset[actiontype=<multiport>]
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multiport = -p <protocol> -m multiport --dports <port>
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ipmset = f2b-<name>
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familyopt =
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firewalld_familyopt =
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[Init?family=inet6]
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ipmset = f2b-<name>6
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familyopt = family inet6
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firewalld_familyopt = --option=family=inet6
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# DEV NOTES:
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#
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# Author: Edgar Hoch, Daniel Black, Sergey Brester and Mihail Politaev
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# firewallcmd-new / iptables-ipset-proto6 combined for maximium goodness
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