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

Questions

Now, it's time to check your knowledge. Select the best response to the following questions and then check your answers, which can be found in the Assessment appendix:

  1. The two main HTTP request methods are GET and _____.
    1. PUT
    2. DELETE
    3. POST
    4. STATE
  2. _____ is one of the most popular open source web server applications in use today, as it has a full library of modules and can power even the largest sites.
    1. Cloudflare
    2. Microsoft IIS
    3. LiteSpeed
    4. Apache
  3. HTTP version _____ reduces latency and improves efficiency by compressing headers to reduce overhead, multiplexes requests and responses, and proactively pushes content to the client.
    1. 1.0
    2. 1.1
    3. 1.2
    4. 2.0
  4. When transferring data from a web server, a persistent connection keeps the session alive until all objects are retrieved. This type of connection is also referred to as an HTTP _____.
    1. Flare state
    2. Parallel connection
    3. Keep-alive
    4. Cookie state
  5. In the HTTP header, you see the value 3600 listed in the Cache-Control field. This means...