diff --git a/src/etc/pf.conf b/src/etc/pf.conf index 57d8d264..1e65fb9a 100644 --- a/src/etc/pf.conf +++ b/src/etc/pf.conf @@ -1,79 +1,29 @@ -# $OpenBSD: pf.conf,v 1.26 2004/02/26 22:11:11 david Exp $ +# $OpenBSD: pf.conf,v 1.27 2004/03/02 20:13:55 cedric 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" +#ext_if="ext0" +#int_if="int0" -# Tables: similar to macros, but more flexible for many addresses. -#table { 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, src.track 0 } -#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, src-nodes 10000, frags 5000 } -#set loginterface none -#set optimization normal -#set block-policy drop -#set require-order yes -#set fingerprints "/etc/pf.os" -#set debug urgent - -# 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 . #table persist -#no rdr on { lo0, lo1 } from any to any -#rdr pass inet proto tcp from to any port smtp -> 127.0.0.1 port 8025 +#table persist -# Filtering: the implicit first two rules are -#pass in all -#pass out all +#scrub in -# 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 +#nat on $ext_if from !($ext_if) -> ($ext_if:0) +#rdr pass on $int_if proto tcp to port ftp -> 127.0.0.1 port 8021 +#rdr pass on $ext_if proto tcp from to port smtp \ +# -> 127.0.0.1 port spamd +#rdr pass on $ext_if proto tcp from ! to port smtp \ +# -> 127.0.0.1 port spamd -# pass incoming packets destined to the addresses given in table . -#pass in on $ext_if proto { tcp, udp } from any to port 80 keep state +#block in +#pass out 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 +#pass quick on { lo $int_if } +#antispoof quick for { lo $int_if } -# 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 +#pass in on $ext_if proto tcp to ($ext_if) port ssh keep state +#pass in on $ext_if proto tcp to ($ext_if) port > 49151 user proxy keep state +#pass in log on $ext_if proto tcp to ($ext_if) port smtp keep state +#pass out log on $ext_if proto tcp from ($ext_if) to port smtp keep state