Book Image

Mastering Wireshark

Book Image

Mastering Wireshark

Overview of this book

Wireshark is a popular and powerful tool used to analyze the amount of bits and bytes that are flowing through a network. Wireshark deals with the second to seventh layer of network protocols, and the analysis made is presented in a human readable form. Mastering Wireshark will help you raise your knowledge to an expert level. At the start of the book, you will be taught how to install Wireshark, and will be introduced to its interface so you understand all its functionalities. Moving forward, you will discover different ways to create and use capture and display filters. Halfway through the book, you’ll be mastering the features of Wireshark, analyzing different layers of the network protocol, looking for any anomalies. As you reach to the end of the book, you will be taught how to use Wireshark for network security analysis and configure it for troubleshooting purposes.
Table of Contents (16 chapters)
Mastering Wireshark
About the Author
About the Reviewer

Chapter 4. Inspecting Application Layer Protocols

This chapter will lead you through the common application layer protocols and will make it easy for you to find any anomalies. You will understand and analyze the normal behavior of application layer protocols by looking at the most common protocols and understand their usual and unusual behaviors.

  • DNS—normal and unusual

  • Lab Up—DNS

  • FTP—normal and unusual

  • Lab Up

  • HTTP—normal and unusual

  • Lab Up—HTTP

  • SMTP—normal and unusual

  • Lab Up—SMTP

  • SIP—normal and unusual

  • Lab Up—SIP

  • VoIP—normal and unusual

  • Lab Up—VoIP

  • Decrypting encrypted traffic

  • Practice questions

We will cover some of the most common application layer protocols that govern today's networks, whether small or big. Without spending too much time, let me take you on this wonderful journey of protocols.