September 2007
Intermediate to advanced
336 pages
9h 7m
English
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Chapter 2. NETWORK LAYER ATTACKS AND DEFENSE
The network layer—layer three in the OSI Reference Model—is the primary mechanism for end-to-end routing and delivery of packet data on the Internet. This book is concerned mostly with attacks that are delivered over the IPv4 networking protocol, though many other networking protocols also exist, such as IPX, X.25, and the latent IPv6 protocol.
In this chapter, we'll focus first on how iptables logs network layer packet headers within log message output. Then we will see how these logs can be used to catch suspicious network layer activity.
Logging Network Layer Headers with iptables
With the iptables LOG target, firewalls built with iptables have the ability to write log data to syslog for nearly every ...
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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.