A few of my favourite things about the OpenBSD Packet Filter tools.

The OpenBSD packet filter (PF) was introduced a little more than 20 years ago as part of OpenBSD 3.0. In a series of two posts, I invite you to take a short tour of PF features and tools that I have enjoyed using. At the time the OpenBSD project introduced its new packet filter subsystem in 2001, I was nowhere near the essentially full-time OpenBSD user I would soon become. I did, however, quickly recognize that even what was later dubbed ’the working prototype’ was reported to perform better in most contexts than the code it replaced.

https://blog.apnic.net/2022/11/02/openbsd-packet-filter-tools/

#pf #firewall