# $OpenBSD: pf.conf,v 1.4 2018/07/10 19:28:35 henning Exp $ # # See pf.conf(5) 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. # increase default state limit from 100'000 states on busy systems #set limit states 500000 set skip on lo # filter rules and anchor for ftp-proxy(8) #anchor "ftp-proxy/*" #pass in quick inet proto tcp to port ftp divert-to 127.0.0.1 port 8021 # anchor for relayd(8) #anchor "relayd/*" block return # block stateless traffic pass # establish keep-state # rules for spamd(8) #table persist #table persist file "/etc/mail/nospamd" #pass in on egress inet proto tcp from any to any port smtp \ # divert-to 127.0.0.1 port spamd #pass in on egress proto tcp from to any port smtp #pass in log on egress proto tcp from to any port smtp #pass out log on egress proto tcp to any port smtp #block in quick from urpf-failed to any # use with care # rules for vmd(8) - NAT and DNS forwarding for VMs (100.64.0.0/10 default) #pass out on egress from 100.64.0.0/10 to any nat-to (egress) #pass in proto udp from 100.64.0.0/10 to any port domain \ # rdr-to $dns_server port domain # By default, do not permit remote connections to X11 block return in on ! lo0 proto tcp to port 6000:6010