Course Outline
Introduction
- Wireshark as more than just a last-resort tool
Foundational Concepts in Network Troubleshooting
- Root cause analysis
Wireshark Installation
Overview of Wireshark Capabilities
- Navigating the user interface
Capturing Traffic in a Test Setting
- Choosing the appropriate network interface
- Capturing packets on wired and wireless networks
Log Analysis
- Examining HTTP packets
- Observing bidirectional TCP streams
- Saving logs for offline review
Investigating Connection Speed Issues on Specific Websites
- Applying filters
- Reviewing statistics
Analysis by Traffic Type
- Examining 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 Machines Compromised by Malware
- Analyzing ARP traffic
Identifying Sources of Network Traffic
- Intel ANS probe
- Software that is broken or misconfigured (network flooding)
Pinpointing Performance Bottlenecks
- Generating statistical charts and graphs
- Customizing color settings in Wireshark
- Filtering specific traffic
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Resolving Connection Issues in Secure Network Environments
- Managing proxies, firewalls, and clients
Optimizing Wireshark Configuration for Performance
- Non-intrusive analysis
Troubleshooting Scenarios
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.