In this chapter, we were able to successfully diagnose multiple issues with this server. Initially, the service was not running. Then, the service was being blocked by the Windows Firewall. Then, there were incorrect credentials provided to the client. Furthermore, using Wireshark we were able to diagnose and provide some information as to where we needed to look, whether it was on the client side or the server side, or in between, and it was a great help, allowing us to resolve this issue quickly. In this chapter, we talked about Wireshark plugins, using Lua and creating dissectors. We then evaluated a troubleshooting scenario, determining where to create our captures, capturing the traffic, and doing some basic diagnostics, and then diving into it a little bit more and actually reading the FTP packets, once they started to send and receive to the client. We have now reached the end of the book. I hope you have enjoyed reading it.
Mastering Wireshark 2
Mastering Wireshark 2
Overview of this book
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.
Table of Contents (18 chapters)
Copyright and Credits
Getting Started with Wireshark
Network Protocol Analysis
Application Protocol Analysis I
Application Protocol Analysis II
A Troubleshooting Scenario
Other Books You May Enjoy