# PF CONFIGURATION - v.2.5 - 040107 @ 1732 $ STILLMAN # MACROS # INTERFACES ext_if = "hme0" int_if = "hme1" dmz_if = "xl0" # TRAFFIC MACROS tcp_services = "{ www, https, ftp-data, ftp, ssh, domain, pop3, pop3s, \ smtp, auth, nntp, cvspserver, 446, 1863, 2628, 8000, \ 8080 }" udp_services = "{ domain, ntp }" udp_voip = "{ 5060:5061, 16384, 16482 }" torrents = "{ 15566:15766 }" icmp_types = "echoreq" # TABLES # LAN IP MANAGEMENT table persist { 10.0.0.0/8 } table persist { 10.10.11.1 } # UNDESIRED TRAFFIC - SCANNERS, SPAMMERS, PROBES, ETC. table persist file "/etc/scanners" table persist file "/etc/spammers" # OPTIONS #set block-policy drop set loginterface $ext_if set skip on lo scrub in all no-df scrub in all random-id # NAT nat on $ext_if from !($ext_if) to any -> ($ext_if) nat-anchor "ftp-proxy/*" rdr-anchor "ftp-proxy/*" # TRAFFIC REDIRECTION rdr pass on $int_if proto tcp to port ftp -> 127.0.0.1 port 8021 rdr on $ext_if proto udp from any to any port $udp_voip -> 10.10.4.1 rdr on $ext_if proto tcp from any to any port 80 -> rdr on $ext_if proto tcp from any to any port 8080 -> rdr on $ext_if proto tcp from any to any port 25 -> #rdr on $int_if proto tcp from any to any port 25 -> port 25 rdr on $ext_if proto tcp from any to any port $torrents -> 10.0.100.9 # FILTER RULES # DEFAULT DENY RULES #block in log all #block out log all # PASS TRAFFIC TO AND FROM FIREWALL #pass in on $int_if from to $int_if keep state #pass in on $int_if from to ! keep state #pass out on $int_if from $int_if to #pass out on $int_if proto tcp from ! to port \ $tcp_services flags S/SA #pass out on $int_if proto tcp from ! to port \ $torrents flags S/SA # DEFAULT TRAFFIC OUT #pass out on $ext_if proto { tcp, udp, icmp } from ($ext_if) to any \ keep state # ALLOW SPECIFIED PORT TRAFFIC IN #pass in on $ext_if inet proto tcp from any to ($ext_if) \ port $tcp_services flags S/SA keep state # ALLOW SPECIFIED REDIRECTS #pass in on $ext_if inet proto tcp from any to port 80 \ flags S/SA synproxy state #pass in on $ext_if inet proto tcp from any to port 8080 \ flags S/SA synproxy state #pass in on $ext_if inet proto tcp from any to port 25 \ flags S/SA #pass in quick on $ext_if inet proto tcp from any to 10.0.100.9 \ port $torrents flags S/SA #pass in on $ext_if proto udp from any to 10.10.4.1 port $udp_voip #pass out on $ext_if proto udp from $ext_if port $udp_voip to ! \ keep state queue(voip_out) # ALLOW PING #pass in inet proto icmp all icmp-type $icmp_types keep state anchor "ftp-proxy/*" #antispoof for { $int_if }