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