Course Outline
Introduction
- Wireshark -- more than just a last-resort tool
Overview of Network Troubleshooting Concepts
- Root cause analysis
Installing Wireshark
Overview of Wireshark Features
- Navigating the UI interface
Capturing Traffic in the Test Environment
- Selecting the appropriate network interface
- Capturing packets on both wired and wireless networks
Analyzing the Logs
- Inspecting HTTP packets
- Reviewing bidirectional TCP streams
- Saving logs for offline inspection
Analyzing Connection Speed Issues for Specific Websites
- Applying filters
- Reviewing statistics
Analyzing by Traffic Type
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Persistent slow connections over extended periods
Checking Response Times
- Configuring delta time columns
Identifying Machines Infected with Malware
- Examining ARP traffic
Investigating Sources of Network Traffic
- Intel ANS probe
- Broken or misconfigured software (network flooding)
Pinpointing Performance Issues
- Generating statistical charts and graphs
- Utilizing color-coding in Wireshark
- Filtering specific traffic
- Leveraging the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting Connections in Secured Network Environments
- Managing proxies, firewalls, and clients
Optimizing Wireshark Configuration for Performance
- Conducting non-intrusive analysis
General Troubleshooting Techniques
Summary and Conclusion
Requirements
- A solid 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.
