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115 lines
3.2 KiB
115 lines
3.2 KiB
# Fail2Ban configuration file
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#
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# OpenBSD pf ban/unban
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#
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# Author: Nick Hilliard <nick@foobar.org>
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# Modified by: Alexander Koeppe making PF work seamless and with IPv4 and IPv6
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#
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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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# we don't enable PF automatically; to enable run pfctl -e
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# or add `pf_enable="YES"` to /etc/rc.conf (tested on FreeBSD)
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# also, these rulesets are loaded into (nested) anchors
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# to enable them, add
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# anchor f2b {
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# name1
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# name2
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# ...
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# }
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# to your main pf ruleset, where "namei" are the names of the jails
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# which invoke this action
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actionstart = echo "table <<tablename>-<name>> persist counters" | <pfctl> -f-
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echo "<block> proto <protocol> from <<tablename>-<name>> to <actiontype>" | <pfctl> -f-
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# Option: start_on_demand - to start action on demand
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# Example: `action=pf[actionstart_on_demand=true]`
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actionstart_on_demand = false
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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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# we only disable PF rules we've installed prior
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actionstop = <pfctl> -sr 2>/dev/null | grep -v <tablename>-<name> | <pfctl> -f-
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<pfctl> -t <tablename>-<name> -T flush
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<pfctl> -t <tablename>-<name> -T kill
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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 = <pfctl> -sr | grep -q <tablename>-<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 = <pfctl> -t <tablename>-<name> -T add <ip>
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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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# note -r option used to remove matching rule
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actionunban = <pfctl> -t <tablename>-<name> -T delete <ip>
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# Option: pfctl
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#
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# Use anchor as jailname to manipulate affected rulesets only.
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# If more parameter expected it can be extended with `pf[pfctl="<known/pfctl> ..."]`
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#
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pfctl = pfctl -a f2b/<name>
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[Init]
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# Option: tablename
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# Notes.: The pf table name.
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# Values: [ STRING ]
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#
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tablename = f2b
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# Option: block
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#
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# The action you want pf to take.
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# Probably, you want "block quick", but adjust as needed.
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block = block quick
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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 | ipv6-icmp ] Default: tcp
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#
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protocol = tcp
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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 = pf[actiontype=<allports>]"
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allports = any
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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 = pf[actiontype=<multiport>]"
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multiport = any port <port>
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