Course Outline
Introduction
- Wireshark: More than just a last-resort tool
Foundations of Network Troubleshooting
- Root cause analysis methodologies
Setting Up Wireshark
Overview of Wireshark Capabilities
- Navigating the user interface
Capturing Traffic in a Test Environment
- Choosing the correct network interface
- Capturing packets on both wired and wireless networks
Examining Captured Logs
- Analyzing HTTP packet details
- Reviewing bidirectional TCP streams
- Exporting logs for offline review
Diagnosing Connection Speed Issues with Specific Websites
- Applying traffic filters
- Interpreting performance statistics
Analyzing Traffic by Type
- Covering DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Investigating persistent slow connections over extended periods
Evaluating Response Times
- Configuring delta time columns
Identifying Machines Infected with Malware
- Analyzing ARP traffic patterns
Investigating Traffic Sources
- Intel ANS probe detection
- Software issues causing network flooding
Locating Performance Bottlenecks
- Generating statistical charts and graphs
- Customizing color coding in Wireshark
- Refining traffic filters
- Leveraging the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting Connections in Secure Network Environments
- Working with proxies, firewalls, and clients
Optimizing Wireshark Configuration
- Performing non-intrusive analysis
Advanced Troubleshooting Techniques
Summary and Wrap-Up
Requirements
- A foundational 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.
