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Course Outline
Introduction
- Wireshark: More than just a last-resort diagnostic tool
Foundations of Network Troubleshooting
- Root cause analysis
Installing Wireshark
Wireshark Feature Overview
- Navigating the user interface
Capturing Traffic in a Test Environment
- Choosing the correct network interface
- Capturing packets on both wired and wireless networks
Log Analysis
- Examining HTTP packets
- Reviewing TCP stream interactions
- Exporting logs for offline review
Investigating Connection Speed Issues for Specific Websites
- Applying filters
- Reviewing statistical data
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
Detecting Virus-Infected Machines
- Reviewing ARP traffic
Identifying Traffic Sources
- Intel ANS probes
- Malfunctioning or misconfigured software (network flooding)
Pinpointing Performance Bottlenecks
- Generating statistical charts and graphs
- Customizing colors in Wireshark
- Filtering specific traffic
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting Connections in Secured Network Environments
- Working with proxies, firewalls, and clients
Optimizing Wireshark Configuration
- Non-intrusive analysis
Troubleshooting Strategies
Summary and Conclusion
Requirements
- Familiarity with TCP/IP networking fundamentals
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.