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84 lines
3.6 KiB
Plaintext
84 lines
3.6 KiB
Plaintext
# $FreeBSD$
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# $OpenBSD: pf.conf,v 1.21 2003/09/02 20:38:44 david Exp $
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#
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# See pf.conf(5) and /usr/share/examples/pf for syntax and examples.
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# Required order: options, normalization, queueing, translation, filtering.
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# Macros and tables may be defined and used anywhere.
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# Note that translation rules are first match while filter rules are last match.
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# Macros: define common values, so they can be referenced and changed easily.
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#ext_if="ext0" # replace with actual external interface name i.e., dc0
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#int_if="int0" # replace with actual internal interface name i.e., dc1
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#internal_net="10.1.1.1/8"
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#external_addr="192.168.1.1"
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# Tables: similar to macros, but more flexible for many addresses.
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#table <foo> { 10.0.0.0/8, !10.1.0.0/16, 192.168.0.0/24, 192.168.1.18 }
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# Options: tune the behavior of pf, default values are given.
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#set timeout { interval 10, frag 30 }
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#set timeout { tcp.first 120, tcp.opening 30, tcp.established 86400 }
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#set timeout { tcp.closing 900, tcp.finwait 45, tcp.closed 90 }
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#set timeout { udp.first 60, udp.single 30, udp.multiple 60 }
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#set timeout { icmp.first 20, icmp.error 10 }
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#set timeout { other.first 60, other.single 30, other.multiple 60 }
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#set timeout { adaptive.start 0, adaptive.end 0 }
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#set limit { states 10000, frags 5000 }
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#set loginterface none
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#set optimization normal
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#set block-policy drop
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#set require-order yes
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#set fingerprints "/etc/pf.os"
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# Normalization: reassemble fragments and resolve or reduce traffic ambiguities.
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#scrub in all
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# Queueing: rule-based bandwidth control.
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#altq on $ext_if bandwidth 2Mb cbq queue { dflt, developers, marketing }
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#queue dflt bandwidth 5% cbq(default)
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#queue developers bandwidth 80%
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#queue marketing bandwidth 15%
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# Translation: specify how addresses are to be mapped or redirected.
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# nat: packets going out through $ext_if with source address $internal_net will
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# get translated as coming from the address of $ext_if, a state is created for
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# such packets, and incoming packets will be redirected to the internal address.
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#nat on $ext_if from $internal_net to any -> ($ext_if)
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# rdr: packets coming in on $ext_if with destination $external_addr:1234 will
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# be redirected to 10.1.1.1:5678. A state is created for such packets, and
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# outgoing packets will be translated as coming from the external address.
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#rdr on $ext_if proto tcp from any to $external_addr/32 port 1234 -> 10.1.1.1 port 5678
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# rdr outgoing FTP requests to the ftp-proxy
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#rdr on $int_if proto tcp from any to any port ftp -> 127.0.0.1 port 8021
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# spamd-setup puts addresses to be redirected into table <spamd>.
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#table <spamd> persist
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#no rdr on { lo0, lo1 } from any to any
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#rdr inet proto tcp from <spamd> to any port smtp -> 127.0.0.1 port 8025
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# Filtering: the implicit first two rules are
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#pass in all
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#pass out all
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# block all incoming packets but allow ssh, pass all outgoing tcp and udp
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# connections and keep state, logging blocked packets.
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#block in log all
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#pass in on $ext_if proto tcp from any to $ext_if port 22 keep state
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#pass out on $ext_if proto { tcp, udp } all keep state
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# pass incoming packets destined to the addresses given in table <foo>.
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#pass in on $ext_if proto { tcp, udp } from any to <foo> port 80 keep state
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# pass incoming ports for ftp-proxy
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#pass in on $ext_if inet proto tcp from any to $ext_if port > 49151 keep state
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# Alternate rule to pass incoming ports for ftp-proxy
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# NOTE: Please see pf.conf(5) BUGS section before using user/group rules.
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#pass in on $ext_if inet proto tcp from any to $ext_if user proxy keep state
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# assign packets to a queue.
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#pass out on $ext_if from 192.168.0.0/24 to any keep state queue developers
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#pass out on $ext_if from 192.168.1.0/24 to any keep state queue marketing
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