# $FreeBSD$ # $OpenBSD: pf.conf,v 1.34 2007/02/24 19:30:59 millert Exp $ # # See pf.conf(5) and /usr/share/examples/pf for syntax and examples. # Remember to set net.inet.ip.forwarding=1 and/or net.inet6.ip6.forwarding=1 # in /etc/sysctl.conf if packets are to be forwarded between interfaces. #ext_if="ext0" #int_if="int0" #table persist #set skip on lo #scrub in #nat-anchor "ftp-proxy/*" #rdr-anchor "ftp-proxy/*" #nat on $ext_if inet from !($ext_if) -> ($ext_if:0) #rdr pass on $int_if proto tcp to port ftp -> 127.0.0.1 port 8021 #no rdr on $ext_if proto tcp from to any port smtp #rdr pass on $ext_if proto tcp from any to any port smtp \ # -> 127.0.0.1 port spamd #anchor "ftp-proxy/*" #block in #pass out #pass quick on $int_if no state #antispoof quick for { lo $int_if } #pass in on $ext_if proto tcp to ($ext_if) port ssh #pass in log on $ext_if proto tcp to ($ext_if) port smtp #pass out log on $ext_if proto tcp from ($ext_if) to port smtp #pass in on $ext_if inet proto icmp from any to ($ext_if) icmp-type { unreach, redir, timex }