nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqyn3lpyqnuyl2wsrp3w9vqmygf7uhy6pyweqgnu07lwt4ecwmfgjs9aatz4 Maybe these links can help you better. I think things are written down there quite cohesive: https://www.openbsd.org/faq/pf/ https://home.nuug.no/~peter/pf/en/preface.html