December 2007
Intermediate to advanced
184 pages
4h 45m
English
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Slightly Stricter, with Lists and Macros
The first rule set was an extremely simple example, and even though we could use it to demonstrate some basics about how networks and packet filtering work, it is probably too simplistic for practical use. For a slightly more structured and complete setup, we can construct a slightly more realistic example. However, this rule set is still based on the single, stand-alone system that connects to one network.
In this configuration, we'll start by denying everything and then allowing only those things we know that we need.[11] This gives us the opportunity to introduce two of the features that make PF such a wonderful tool: lists and macros.
We'll make some changes to /etc/pf.conf, starting with
block all
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.