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Practical Packet Analysis, 2nd Edition by Chris Sanders

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Chapter 1. Packet Analysis and Network Basics

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A million different things can go wrong with a computer network on any given day—from a simple spyware infection to a complex router configuration error—and it’s impossible to solve every problem immediately. The best we can hope for is to be fully prepared with the knowledge and tools we need to respond to these types of issues.

All network problems stem from the packet level, where even the prettiest looking applications can reveal their horrible implementations, and seemingly trustworthy protocols can prove malicious. To better understand network problems, we go to the packet level. Here, nothing is ...

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