Book Image

Learn Wireshark, - Second Edition

By : Lisa Bock
5 (1)
Book Image

Learn Wireshark, - Second Edition

5 (1)
By: Lisa Bock

Overview of this book

Wireshark is a popular and powerful packet analysis tool that helps network administrators investigate latency issues and potential attacks. Over the years, there have been many enhancements to Wireshark’s functionality. This book will guide you through essential features so you can capture, display, and filter data with ease. In addition to this, you’ll gain valuable tips on lesser-known configuration options, which will allow you to complete your analysis in an environment customized to suit your needs. This updated second edition of Learn Wireshark starts by outlining the benefits of traffic analysis. You’ll discover the process of installing Wireshark and become more familiar with the interface. Next, you’ll focus on the Internet Suite and then explore deep packet analysis of common protocols such as DNS, DHCP, HTTP, and ARP. The book also guides you through working with the expert system to detect network latency issues, create I/O and stream graphs, subset traffic, and save and export captures. Finally, you’ll understand how to share captures using CloudShark, a browser-based solution for analyzing packet captures. By the end of this Wireshark book, you’ll have the skills and hands-on experience you need to conduct deep packet analysis of common protocols and network troubleshooting as well as identify security issues.
Table of Contents (28 chapters)
1
Part 1 Traffic Capture Overview
6
Part 2 Getting Started with Wireshark
11
Part 3 The Internet Suite TCP/IP
16
Part 4 Deep Packet Analysis of Common Protocols
21
Part 5 Working with Packet Captures

Summary

Whether you are a power user or a casual analyst, it only takes a few minor tweaks to personalize Wireshark so that you can complete tasks more efficiently. In this chapter, we examined the many ways to customize the Wireshark interface to fit your workflow. We covered how to modify choices such as recent filters and folders, along with the layout and general appearance. We discovered how easy it is to create tailored profiles to include preferences, coloring rules, and font styles. We then learned how to create a filter button on the toolbar for commonly used filters in Wireshark.

Furthermore, we discovered how to modify, add, or remove columns and column headers. We examined ways to fine-tune the font to make packets easier to read. We also reviewed how we can change the default colors for the various identifiers, such as the text color for marked packets. Finally, we illustrated the ability to add comments to a single packet or the entire capture to communicate issues...