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Wireshark: Network Troubleshooting

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Overview

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Learn how to analyze network problems with Wireshark, a free, open-source packet analysis tool that helps identify congestion issues, suspicious activity, and network intrusions.

Syllabus

Introduction
  • Analyze network problems
  • What you need to know
Traffic Capture and Analysis
  • Getting the most out of Wireshark
  • Navigating the Wireshark interface
  • Investigating the Edit Menu choice
  • Exploring the View Menu choice
  • Getting ready to capture
  • Examining a capture
  • Challenge: Examining evidence of congestion
  • Response: Examining evidence of congestion
Using Time as a Metric
  • Displaying time
  • Viewing Details and Expert Info
  • Graphing the TCP Streams
  • Challenge: Using time to view gaps in transmission
  • Response: Using time to view gaps in transmission
Wireshark Tools
  • Viewing conversations and endpoints
  • Creating a flow graph
  • Plotting an IO graph
  • Challenge: Using a Flow Graph
  • Response: Using a Flow Graph
Recognizing Abnormal or Malicious Traffic
  • Troubleshooting the Network
  • Spotting an ARP Storm
  • Identifying bursty traffic
  • Protecting from packet sniffing
  • Examining Macof attacks
  • Challenge: Identify a scanning signature
  • Solution: Identify a scanning signature
Conclusion
  • What's next?

Taught by

Lisa Bock

Reviews

4.7 rating at LinkedIn Learning based on 501 ratings

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