Course Outline
Introduction
- Wireshark: More than a last-resort tool
Concepts in Network Troubleshooting
- Root cause analysis
Installing Wireshark
Wireshark Features Overview
- Navigating the user interface
Capturing Traffic in a Test Environment
- Selecting the appropriate network interface
- Capturing packets on wired and wireless networks
Analyzing Logs
- Inspecting HTTP packets
- Reviewing bidirectional TCP streams
- Saving logs for offline examination
Analyzing Connection Speed Issues with Specific Websites
- Applying filters
- Reviewing statistics
Analysis by Traffic Type
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Consistently slow connections over extended periods
Checking Response Times
- Configuring delta time columns
Detecting Machines Infected with Malware
- Inspecting ARP traffic
Inspecting Network Traffic Sources
- Intel ANS probe
- Broken or misconfigured software (network flooding)
Pinpointing Performance Issues
- Generating statistical charts and graphs
- Configuring color coding in Wireshark
- Filtering specific traffic
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting Connections in Secure Network Environments
- Working with proxies, firewalls, and clients
Optimizing Wireshark Performance
- Non-intrusive analysis
Troubleshooting
Summary and Conclusion
Requirements
- Familiarity with TCP/IP networking principles
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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.