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77 lines
2.4 KiB
77 lines
2.4 KiB
# Fail2Ban configuration file
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#
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# Author: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
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#
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# $Revision: 1 $
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#
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[Definition]
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# Option: actionstart
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# Notes.: command executed once at the start of Fail2Ban.
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# Values: CMD
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#
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# Changing iptables rules requires root priviledges. If fail2ban is
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# configured to run as root, firewall setup can be performed by
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# fail2ban automatically. However, if fail2ban is configured to run as
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# a normal user, the configuration must be done by some other means
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# (e.g. using static firewall configuration with the
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# iptables-persistent package).
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#
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# Explanation of the rule below:
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# Check if any packets coming from an IP on the fail2ban-<name>
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# list have been seen in the last 3600 seconds. If yes, update the
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# timestamp for this IP and drop the packet. If not, let the packet
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# through.
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#
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# Fail2ban inserts blacklisted hosts into the fail2ban-<name> list
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# and removes them from the list after some time, according to its
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# own rules. The 3600 second timeout is independent and acts as a
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# safeguard in case the fail2ban process dies unexpectedly. The
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# shorter of the two timeouts actually matters.
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actionstart = iptables -I INPUT -m recent --update --seconds 3600 --name fail2ban-<name> -j DROP
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# Option: actionstop
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# Notes.: command executed once at the end of Fail2Ban
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# Values: CMD
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#
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actionstop = echo / > /proc/net/xt_recent/fail2ban-<name>
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# Option: actioncheck
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# Notes.: command executed once before each actionban command
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# Values: CMD
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#
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actioncheck = test -e /proc/net/xt_recent/fail2ban-<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: <ip> IP address
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# <failures> number of failures
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# <time> unix timestamp of the ban time
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# Values: CMD
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#
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actionban = echo +<ip> > /proc/net/xt_recent/fail2ban-<name>
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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: <ip> IP address
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# <failures> number of failures
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# <time> unix timestamp of the ban time
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# Values: CMD
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#
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actionunban = echo -<ip> > /proc/net/xt_recent/fail2ban-<name>
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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: 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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