June 2010
Intermediate to advanced
224 pages
5h 18m
English
Content preview from Network Flow AnalysisBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Useful Primitives
Now that you understand how primitives and filters work together, I'll discuss primitives in depth. flow-nfilter supports many different primitives, but I'll cover only the most commonly useful ones here. The flow-nfilter man page includes the complete primitive list, but this book contains every one that I have used during several years of flow analysis.
Protocol, Port, and Control Bit Primitives
Filtering on network protocol and port information is one of the most common ways to strip a list of flow records down to only interesting traffic.
IP Protocol Primitives
You saw a basic IP protocol primitive earlier, but you can check for protocols other than TCP. For example, if you use IPSec, OSPF, or other network protocols that run ...
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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.