Mastering Wireshark 2

▶Book Description
Wireshark, a combination of a Linux distro (Kali) and an open source security framework (Metasploit), is a popular and powerful tool. Wireshark is mainly used to analyze the bits and bytes that flow through a network. It efficiently deals with the second to the seventh layer of network protocols, and the analysis made is presented in a form that can be easily read by people.

Mastering Wireshark 2 helps you gain expertise in securing your network. We start with installing and setting up Wireshark2.0, and then explore its interface in order to understand all of its functionalities. As you progress through the chapters, you will discover different ways to create, use, capture, and display filters. By halfway through the book, you will have mastered Wireshark features, analyzed different layers of the network protocol, and searched for anomalies. You’ll learn about plugins and APIs in depth. Finally, the book focuses on pocket analysis for security tasks, command-line utilities, and tools that manage trace files.

By the end of the book, you'll have learned how to use Wireshark for network security analysis and configured it for troubleshooting purposes.

▶What You Will Learn
⦁ Understand what network and protocol analysis is and how it can help you
⦁ Use Wireshark to capture packets in your network
⦁ Filter captured traffic to only show what you need
⦁ Explore useful statistic displays to make it easier to diagnose issues
⦁ Customize Wireshark to your own specifications
⦁ Analyze common network and network application protocols

▶Key Features
⦁ Delve into the core functionalities of the latest version of Wireshark
⦁ Master network security skills with Wireshark 2
⦁ Efficiently find the root cause of network-related issues

▶Who This Book Is For
If you are a security professional or a network enthusiast and are interested in understanding the internal working of networks, and if you have some prior knowledge of using Wireshark, then this book is for you.

▶What this book covers
⦁ Chapter 1, Installing Wireshark 2, teaches you how to install Wireshark on Windows, macOS, and Linux.

⦁ Chapter 2, Getting Started with Wireshark, tells you about what's new in Wireshark 2. It will also teach you how to capture traffic and how to save, export, annotate, and print packages.

⦁ Chapter 3, Filtering Traffic, teaches you about BPF syntax and how to create one. It further explains how to use BPF to apply it as a capture filter and reduce the packets, how to create and use display filters, and how to follow streams—.both TCP and UDP.

⦁ Chapter 4, Customizing Wireshark, explains how to apply preferences in Wireshark and customize them. You will learn how to create profiles for different analysis requirements.

⦁ Chapter 5, Statistics, provides an overview of TCP/IP and time values and summaries. You will also take a look at the expert system usage feature of Wireshark.

⦁ Chapter 6, Introductory Analysis, explains the basics of DNS and some DNS query examples. You will also learn about ARP resolution and how to resolve an IP address to a physical MAC address on an Ethernet bus. You will also acquire knowledge about IPv4 and IPv6 headers, the flags within them, and the fragmentation.

⦁ Chapter 7, Network Protocol Analysis, teaches you about UDP analysis: the connectionless protocol, TCP analysis: the connection-oriented protocol, and finally, graphing I/O rates and TCP trends: visualization of the data analyzed.

⦁ Chapter 8, Application Protocol Analysis I, talks about HTTP, both in an unencrypted fashion and an encrypted fashion, and how to decrypt that. You will also look into FTP in all of its many flavors, including active mode, passive mode, and the encrypted flavors of FTPS and SFTP.

⦁ Chapter 9, Application Protocol Analysis II, teaches you email analysis using POP and SMTP. We will also look at VoIP analysis using SIP and RTP.

⦁ Chapter 10, Command-Line Tools, teaches you how to run Wireshark from the command line, tshark, tcpdump, and running dumpcap.

⦁ Chapter 11, A Troubleshooting Scenario, covers troubleshooting a specific issue within Wireshark.