Course Outline
Introduction
- Wireshark – more than a last-resort tool
Overview of Network Troubleshooting Concepts
- Root cause analysis
Installing Wireshark
Overview of Wireshark Features
- Navigating the user interface
Capturing Traffic in a Test Environment
- Choosing the appropriate network interface
- Capturing packets on wired and wireless networks
Analyzing Captured Logs
- Examining HTTP packets
- Reviewing TCP stream interactions
- Exporting logs for offline review
Investigating Slow Connection Speeds to Specific Websites
- Applying display filters
- Interpreting statistical data
Analyzing Specific Traffic Types
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Persistent connection slowness over extended periods
Evaluating Response Times
- Configuring delta time columns
Detecting Virus-Infection Indicators on Hosts
- Reviewing ARP traffic patterns
Identifying Sources of Network Traffic
- Intel ANS probe
- Malfunctioning or misconfigured software (network flooding)
Locating Performance Bottlenecks
- Generating statistical charts and graphs
- Customizing color coding in Wireshark
- Refining traffic filters
- Utilizing the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting Connections in Secured Network Environments
- Considerations for proxies, firewalls, and client configurations
Optimizing Wireshark Configuration
- Non-intrusive analysis techniques
Troubleshooting Procedures
Summary and Conclusion
Requirements
- A foundational understanding of TCP/IP networking concepts
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.
