OpenBSD's PF Firewall Introduction and Tips

This tutorial is about OpenBSD's PF firewall, ported on FreeBSD. Sections from pf.conf must have the following order: - Macro definitions - Tables - Options - Scrub Rules - Packet Queueing Rules - Packet Redirection Rules - Packet Filtering Rules PF Tips -------- Tip1: See number of memory pools used by PF: ----------------------------------------------------------------- pfctl -s memory Tip2: Monitor pflog -------------------------- tcpdump -n -e -ttt -i pflog0

 

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