Course Outline
Introduction
- Why Wireshark is more than just a last-resort tool
Foundations of Network Diagnostics
- Root cause analysis
Setting Up Wireshark
Exploring Key Wireshark Features
- Navigating the user interface
Packet Capture in a Test Environment
- Selecting the appropriate network interface
- Capturing packets on both wired and wireless networks
Interpreting Captured Logs
- Examining HTTP packets
- Reviewing bidirectional TCP streams
- Exporting logs for offline analysis
Investigating Slow Connections to Specific Sites
- Applying display filters
- Reviewing statistical data
Analysis by Traffic Protocol
- Covering DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Identifying persistent slowdowns over extended periods
Monitoring Response Times
- Configuring delta time columns
Detecting Potential Malware or Virus Infections
- Analysing ARP traffic
Tracing Traffic Sources
- Using the Intel ANS probe
- Identifying broken or misconfigured software causing network flooding
Isolating Performance Bottlenecks
- Generating statistical charts and graphs
- Customising colour schemes in Wireshark
- Refining traffic filters
- Leveraging the Wireshark Expert System and TCP/IP resolution flowcharts
Diagnosing Connections in Secured Network Environments
- Handling proxies, firewalls, and client configurations
Optimising Wireshark Settings
- Performing non-intrusive analysis
Practical Troubleshooting Scenarios
Wrap-up and Conclusion
Requirements
- Familiarity with 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.
