Course Outline
Introduction
- Wireshark -- more than just a last resort
Introduction to Network Troubleshooting Concepts
- Root cause analysis
Setting Up Wireshark
Key Features of Wireshark
- Exploring the user interface
Capturing Traffic in a Test Environment
- Choosing the appropriate network interface
- Capturing packets on both wired and wireless networks
Examining Logs
- Analyzing HTTP packets
- Reviewing bidirectional TCP streams
- Saving logs for offline review
Investigating Connection Speed Issues with Specific Websites
- Applying filters
- Reviewing statistics
Analysis by Traffic Type
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Persistent slow connections over extended periods
Evaluating Response Times
- Configuring delta time columns
Identifying Machines Infected with Malware
- Analyzing ARP traffic
Investigating Network Traffic Sources
- Intel ANS probe
- Faulty or misconfigured software (network flooding)
Isolating Performance Issues
- Generating statistical charts and graphs
- Configuring color coding in Wireshark
- Filtering traffic
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Diagnosing Connections in Secure Network Environments
- Interactions involving proxies, firewalls, and clients
Optimizing Wireshark Configuration
- Non-intrusive analysis
Troubleshooting
Wrap-up and Conclusion
Requirements
- A solid understanding of TCP/IP networking concepts
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.
