The PF firewall’s pf log facility provides a powerful, flexible set of capabilities for generating network traffic logs. Because it stores logs in tcpdump’s native pcap format, a wide range of other tools provide a powerful, flexible set of capabilities for filtering those logs.
This blog has detail about how to deploy, configure, and maintain PF firewall so that filtering something not important. There are commentates about ever step, so they can help the reader know easily.
PF firewall is a BSD licensed packet filter, a central piece of software for firewalling. It is very close to IT security, because filtering is an important part of security. Filtering something is can help us to save our time.
The reason of why do I choose this blog is that I don’t know the PF firewall but I want to know it. This blog interest me, and I think that’s a good blog after I read.