December 2013
Beginner to intermediate
648 pages
18h 28m
English
Content preview from Linux Kernel Networking: Implementation and Theory
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CHAPTER 9
Netfilter
Chapter 8 discusses the IPv6 subsystem implementation. This chapter discusses the netfilter subsystem. The netfilter framework was started in 1998 by Rusty Russell, one of the most widely known Linux kernel developers, as an improvement of the older implementations of ipchains (Linux 2.2.x) and ipfwadm (Linux 2.0.x). The netfilter subsystem provides a framework that enables registering callbacks in various points (netfilter hooks) in the packet traversal in the network stack and performing various operations on packets, such as changing addresses or ports, dropping packets, logging, and more. These netfilter hooks provide ...
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