Chapter 1. WHAT PF IS
You have come here because you haveheard about the networking product called PF, and you are most likely reading this book because you want to learn what it's all about. It's probably useful to start by spending a few moments looking at the project's history inorder to put things in their proper context.
OpenBSD's Packet Filter subsystem, which most people refer to simply by using the abbreviated form PF, was originally written during an episode of extremely rapid development during the northern hemisphere summer and autumn months of 2001 by Daniel Hartmeier and a number of OpenBSD developers. The result was launched as a default ...
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