Preface

Wireshark is the world's most popular free and open source protocol analyzer, and it is commonly used by networking and security professionals for troubleshooting, analysis, protocol development, and forensics. The primary objective of Wireshark is to capture network traffic and display the packet data in, as detailed a way as possible. It  helps professionals view the content of network traffic on a microscopic level.

This book is written from the standpoint of using Wireshark and learning how network protocols function and provides a practical approach to conducting protocol analysis, troubleshooting network anomalies, and examining security issues. I have tried to depict common scenarios that you may come across in day-to-day operations through practical demonstration wherever possible to help you understand the concepts better. By reading this book, you will learn how to install Wireshark, work with Wireshark GUI elements, and learn some advanced features behind the scenes, such as the filtering options, the statistics menu, and decrypting wireless and encrypting traffic. You can be the superhero of your team who helps resolve connectivity issues, network administration tasks, and computer forensics because Packets Are Life. If your routine job requires dealing with computer networks and security, then this book will give you a strong head start. Happy sniffing!