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Course Outline
Introduction
- Wireshark as a proactive tool, not just a last resort
Foundations of Network Troubleshooting
- Root cause analysis
Installing Wireshark
Key Features of Wireshark
- Navigating the user interface
Capturing Traffic in a Test Environment
- Choosing the appropriate network interface
- Capturing packets on wired and wireless networks
Analyzing Captured Logs
- Examining HTTP packets
- Reviewing TCP stream interactions
- Saving logs for offline review
Investigating Connection Speed Issues on Specific Websites
- Applying filters
- Interpreting statistics
Analysis by Traffic Type
- Covering DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Addressing persistent slow connections over extended periods
Evaluating Response Times
- Configuring delta time columns
Detecting Virus-Infected Machines
- Reviewing ARP traffic
Identifying Network Traffic Sources
- Intel ANS probe
- Malfunctioning or misconfigured software causing network flooding
Isolating Performance Issues
- Generating statistical charts and graphs
- Customizing color schemes in Wireshark
- Filtering specific traffic streams
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting within Secured Network Environments
- Managing proxies, firewalls, and client interactions
Optimizing Wireshark Configuration
- Performing non-intrusive analysis
Troubleshooting Techniques
Summary and Conclusions
Requirements
- A solid grasp of TCP/IP networking principles
21 Hours
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.
