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30-Day Money-Back Guarantee

This course includes:

  • 2.5 hours on-demand video
  • 21 downloadable resources
  • Full lifetime access
  • Access on mobile and TV
IT & Software Network & Security Wireshark

Mastering Network Troubleshooting with Wireshark

Solve network problems and improve your understanding of network protocols by learning Wireshark from an expert.
Rating: 4.5 out of 54.5 (147 ratings)
3,057 students
Created by Brian Hill
Last updated 11/2018
English
English [Auto]
30-Day Money-Back Guarantee

What you'll 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.

Requirements

  • You need to have a solid understanding of general networking, including a basic understanding of IP, ARP, and TCP.
  • A system that you can install and run Wireshark on is helpful, but not absolutely required.

Description

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.

Who this course is for:

  • Network administrators, network engineers, and programmers who want to improve thier ability to diagnose problems and extend thier protocol-level knowledge using Wireshark.

Featured review

Juan Luis Orozco Montalvo
Juan Luis Orozco Montalvo
8 courses
2 reviews
Rating: 5.0 out of 510 months ago
Excellent course, well explained, voice clear, excellent knowledge of the tool (Wireshark), helps me a lot to know how to handle much better Wireshark. I only suggest to use something like GNS3 to do in real-time captures and clarify a little bit more the concepts.

Course content

9 sections • 27 lectures • 2h 28m total length

  • Preview02:34
  • Preview01:20
  • Preview03:00

  • Downloading Wireshark
    01:07
  • Installing Wireshark on Windows
    03:30
  • Taking a Capture
    02:06
  • Understanding the User Interface
    04:01

  • Preview04:24
  • Learning the Filter Language
    19:56

  • Viewing HTML Source in the Browser
    03:42
  • Filtering to find the page in Wireshark
    06:12
  • Examining each layer in the Capture
    14:18

  • Preview02:06
  • Understanding a real RFC
    02:56

  • Capturing all relevant Data
    13:53
  • Reducing Noise
    02:16

  • Comparison Technique
    02:04
  • Simultanious Capture Technique
    01:36
  • Ring Buffering
    03:08

  • TCP Checksum Errors
    07:46
  • Understanding TCP Retransmissions
    01:43
  • Identifying Invalid Retransmissions
    06:42
  • Identifying Valid Retransmissions
    13:53
  • Understanding the IP MTU
    01:25
  • PathMTU Discovery
    11:06
  • Diagnosing PMTU Discovery Failures
    09:35

  • Course Conclusion
    02:21

Instructor

Brian Hill
Author, IT Instructor, and SME
Brian Hill
  • 4.5 Instructor Rating
  • 147 Reviews
  • 3,057 Students
  • 1 Course

Brian has been passionate about computing since he got his first computer, an Atari 600XL with a cassette drive, in 1983. As a young boy, he taught himself BASIC programming, and began a journey of learning that continues to this day.

At this point, Brian has over 20 years of professional computing experience in diverse positions, from IT architect to SME, design to implementation. He has worked for giants such as Microsoft and Bank of America, as well as startups. He is a published author of over a dozen books and articles, and has been cited in scientific publications over 10 times. 

Brian currently helps craft a digital tutor that is used to train thousands of active duty military and veterans. He can be reached through his website.

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