Mastering Network Troubleshooting with Wireshark

Solve network problems and improve your understanding of network protocols by learning Wireshark from an expert.

4.40 (200 reviews)
Udemy
platform
English
language
Network & Security
category
instructor
Mastering Network Troubleshooting with Wireshark
3,288
students
2.5 hours
content
Nov 2018
last update
$49.99
regular price

What you will learn

Determine the source of network problems over nearly any protocol.

Understand Wireshark's filtering language and use it to separate signal from noise.

Use Wireshark to improve your understanding of network protocols.

Master techniques that allow you to find errors in proprietary protocol implementations.

Implement capture methods that maximize the valid data captured while minimizing clutter.

Use RFC's to decode what you see in the protocol details.

Why take this course?

Protocol analysis is a complicated, and often intimidating, subject. Many engineers, even ones with significant experience, feel powerless and lost when confronted with the sea of data that a network capture can provide. Most courses approach this problem with more overload; diving into each menu item and option with detailed explanations. But when you get done with those courses, you still find yourself wondering “How do I actually use this stuff to resolve problems?”

This course is different

This course is specifically designed to walk you through the mindset and methodology an expert uses to diagnose problems with Wireshark. No time is wasted on options or features that are not heavily used. Instead, the key skills are trained, with a focus on making sure you understand why this skill is useful, and how the skill is used. Real problems are examined from real network captures, and the techniques used to diagnose these problems are laid bare.  

Throughout this course, you will open the same captures as the instructor, and use the same techniques he uses to see the same results he gets. In this course, you will learn:  

  • How to install Wireshark to both take and view captures  

  • How to take the best possible captures, maximizing signal and reducing noise  

  • How to filter captures using both individual and combined filtering, to arrive at the exact information you need  

  • Advanced techniques like comparison captures and ring buffering to diagnose complex corner cases  

  • How to use RFCs to understand the function of the protocols you are examining  

  • How to use captures to troubleshoot both common and complex problems, such as TCP retransmissions and Black Hole routers


Additionally, you will receive access to all of the example traces used in the course, so that you can follow along as the instructor walks you through his techniques. And all of this is provided in high-quality video, allowing you to complete the course at your own pace.  

Finally, in addition to the course, you will receive:  

  • Direct access to the instructor

  • Updated content

  • A certificate of completion

  • 30-day, money-back guarantee


All you need to take the course is a computer capable of running Wireshark (Windows, Linux, or Macintosh), and an Internet connection. 

Just click Buy Now, and you can begin immediately.

Content

Introduction

Course Introduction
Instructor Introduction
Course Prerequisites and Notes

Wireshark Basics

Downloading Wireshark
Installing Wireshark on Windows
Taking a Capture
Understanding the User Interface

Filtering Captures

The Need for Filtering
Learning the Filter Language

Analyzing a Capture

Viewing HTML Source in the Browser
Filtering to find the page in Wireshark
Examining each layer in the Capture

Using RFCs

The purpose of RFCs
Understanding a real RFC

Getting good Captures

Capturing all relevant Data
Reducing Noise

Advanced Capture Techniques

Comparison Technique
Simultanious Capture Technique
Ring Buffering

Troubleshooting Specific Problems

TCP Checksum Errors
Understanding TCP Retransmissions
Identifying Invalid Retransmissions
Identifying Valid Retransmissions
Understanding the IP MTU
PathMTU Discovery
Diagnosing PMTU Discovery Failures

Conclusion

Course Conclusion

Screenshots

Mastering Network Troubleshooting with Wireshark - Screenshot_01Mastering Network Troubleshooting with Wireshark - Screenshot_02Mastering Network Troubleshooting with Wireshark - Screenshot_03Mastering Network Troubleshooting with Wireshark - Screenshot_04

Our review

--- **Overview of Course "Mastering Wireshark":** The global course rating stands at a commendable 4.40, with all recent reviews pointing towards a well-structured and informative learning experience. The course, aimed at enhancing the understanding and application of Wireshark for network troubleshooting, has been received positively by users with varying levels of expertise. --- **Pros:** - **Expertise and Clarity:** The instructor is consistently praised for their extensive knowledge of networking and Wireshark, as well as their clear communication skills. Video and sound quality are reported to be excellent, ensuring that learners can follow along without distraction. - **Focus on Fundamentals:** There is particular emphasis on explaining how to obtain a clean capture and effectively apply filters, which many users found extremely valuable for improving their Wireshark skills. - **Content Relevance:** The course content is described as concise yet comprehensive, hitting the sweet spot for learners by providing just the right amount of information without overwhelming them. - **Practical Application:** Users appreciate the real-world application of the concepts taught, with several noting that they have already been able to apply what they've learned to their own network troubleshooting efforts. --- **Cons:** - **Technical Updates:** A few users encountered issues with following along due to discrepancies between the course content and the latest version of Wireshark. This can be mitigated by updating the course content or providing clear guidance on how to adjust for the newer versions. - **Interactive Elements:** Some learners wish there were more interactive projects within the course to test their understanding and apply what they've learned in a practical setting. - **Advanced Content:** A number of users who consider themselves self-taught or experienced with Wireshark still found the course valuable, but suggest that it could be further enhanced by including more advanced topics and real-time practical examples. --- **User Experience Highlights:** - **Beginner to Advanced:** The course has been utilized by both newcomers to Wireshark and experienced professionals looking to deepen their knowledge. It is well-received across the board, indicating a wide applicability for the material taught. - **Clear Voice and Knowledgeable Content:** The instructor's clear voice and in-depth knowledge are often highlighted as key factors contributing to the course's success. - **Real-world Applicability:** Users have successfully applied their newfound Wireshark skills to real-world situations, which underscores the course's practical utility. --- **Suggestions for Improvement:** - **Version Alignment:** Ensure that the version of Wireshark used in the course matches the latest version available or provide clear guidance on how to adapt learning when using newer versions. - **Interactive Components:** Incorporate more practical exercises, labs, and interactive elements to solidify learners' understanding and provide hands-on experience. - **Advanced Content Expansion:** Consider expanding the course content to cover more advanced topics and real-world troubleshooting scenarios for various networks, including LAN, WAN, LTE, and 5G. --- In conclusion, "Mastering Wireshark" is a highly recommended course for individuals looking to improve their network troubleshooting skills with Wireshark. The positive reception across different user levels indicates that the course effectively bridges the gap between theoretical knowledge and practical application, making it an invaluable resource for both beginners and seasoned network professionals alike.

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1593554
udemy ID
3/12/2018
course created date
6/20/2019
course indexed date
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