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Duration 21 hours
Course Outline
Introduction
- Wireshark: More than a last-resort tool
Foundations of Network Troubleshooting
- Root cause analysis
Installing Wireshark
Overview of Wireshark Capabilities
- Navigating the user interface
Capturing Traffic in a Test Environment
- Selecting the appropriate network interface
- Capturing packets on wired and wireless networks
Log Analysis
- Examining HTTP packets
- Reviewing bidirectional TCP streams
- Saving logs for offline review
Investigating Connection Speed Issues for Specific Websites
- Applying filters
- Reviewing statistics
Analysis by Traffic Type
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Addressing persistent slow connections
Monitoring Response Times
- Configuring delta time columns
Detecting Virus-Infected Machines
- Inspecting ARP traffic
Identifying Traffic Sources
- Intel ANS probes
- Software malfunctions or misconfigurations (network flooding)
Identifying Performance Bottlenecks
- Generating statistical charts and graphs
- Customizing colors in Wireshark
- Filtering specific traffic
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting in Secured Network Environments
- Interactions between proxies, firewalls, and clients
Optimizing Wireshark Configuration
- Non-intrusive analysis techniques
Practical Troubleshooting
Conclusion and Summary
Requirements
- A solid grasp of TCP/IP networking fundamentals
Testimonials (3)
knowledge of the instructor
Grzegorz - Centrum Informatyki Resortu Finansow
Course - Network Troubleshooting with Wireshark
skills of wireshark
Adam - Centrum Informatyki Resortu Finansow
Course - Network Troubleshooting with Wireshark
Quality of explanation of program operation and analysis of various cases.