Understanding Linux Network Internals
Guided Tour to Networking in Linux
If you've ever wondered how Linux carries out the complicated tasks assigned to it by the IP protocols - or if you just want to learn about modern networking through real-life examples - Understanding Linux Network Internals is for you.
This book clearly explains the underlying concepts and teaches you how to follow the actual C code that implements it. Although some background in the TCP/IP protocols is helpful, you can learn a great deal from this text about the protocols themselves and their uses. And if you already have a base knowledge of C, you can use the book's code walkthroughs to figure out exactly what this sophisticated part of the Linux kernel is doing.
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