Course Outline
Introduction
- Wireshark -- more than just a last-resort solution
Key Concepts in Network Troubleshooting
- Root cause analysis
Installing Wireshark
Overview of Wireshark Capabilities
- Navigating the user interface
Capturing Traffic in the Test Environment
- Selecting the appropriate network interface
- Capturing packets on both wired and wireless networks
Log Analysis
- Examining HTTP packets
- Reviewing bidirectional TCP streams
- Saving logs for offline analysis
Investigating Connection Speed Issues with Specific Websites
- Applying filters
- Reviewing statistics
Analysis by Traffic Type
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Persistent slow connections over extended periods
Monitoring Response Times
- Configuring delta time columns
Detecting Machines Infected with Malware
- Analyzing ARP traffic
Investigating Sources of Network Traffic
- Intel ANS probe
- Broken or misconfigured software (network flooding)
Isolating Performance Issues
- Generating statistical charts and graphs
- Customizing color coding in Wireshark
- Filtering traffic streams
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting Connections in Secure Network Environments
- Handling proxies, firewalls, and clients
Optimizing Wireshark Configuration
- Non-intrusive analysis techniques
Troubleshooting Procedures
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.
