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