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95 lines
3.5 KiB
Plaintext
95 lines
3.5 KiB
Plaintext
## Version 2022/08/06
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# Fail2Ban configuration file
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#
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# Author: Eduardo Diaz
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#
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# This is for ipset protocol 6 (and hopefully later) (ipset v6.14).
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# for shorewall
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#
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# Use this setting in jail.conf to modify use this action instead of a
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# default one
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#
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# banaction = shorewall-ipset-proto6
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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
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# kernels, and you need Shorewall >= 4.5.5 to use this action.
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#
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# The default Shorewall configuration is with "BLACKLISTNEWONLY=Yes" (see
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# file /etc/shorewall/shorewall.conf). This means that when Fail2ban adds a
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# new shorewall rule to ban an IP address, that rule will affect only new
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# connections. So if the attacker goes on trying using the same connection
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# he could even log in. In order to get the same behavior of the iptable
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# action (so that the ban is immediate) the /etc/shorewall/shorewall.conf
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# file should me modified with "BLACKLISTNEWONLY=No".
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#
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#
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# Enable shorewall to use a blacklist using iptables creating a file
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# /etc/shorewall/blrules and adding "DROP net:+f2b-ssh all" and
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# similar lines for every jail. To enable restoring you ipset you
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# must set SAVE_IPSETS=Yes in shorewall.conf . You can read more
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# about ipsets handling in Shorewall at http://shorewall.net/ipsets.html
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#
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# To force creation of the ipset in the case that somebody deletes the
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# ipset create a file /etc/shorewall/initdone and add one line for
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# every ipset (this files are in Perl) and add 1 at the end of the file.
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# The example:
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# system("/usr/sbin/ipset -quiet -exist create f2b-ssh hash:ip timeout 600 ");
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# 1;
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#
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# To destroy the ipset in shorewall you must add to the file /etc/shorewall/stopped
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# # One line of every ipset
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# system("/usr/sbin/ipset -quiet destroy f2b-ssh ");
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# 1; # This must go to the end of the file if not shorewall compilation fails
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#
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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 = if ! ipset -quiet -name list f2b-<name> >/dev/null;
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then ipset -quiet -exist create f2b-<name> hash:ip timeout <default-ipsettime>;
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fi
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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 = ipset flush 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 add f2b-<name> <ip> timeout <ipsettime> -exist
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# actionprolong = %(actionban)s
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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 del f2b-<name> <ip> -exist
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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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