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 user interface
Capturing Traffic in the Test Environment
- Selecting the appropriate network interface
- Capturing packets on both wired and wireless networks
Analyzing the Logs
- Examining HTTP packets
- Viewing bidirectional TCP streams
- Saving logs for offline inspection
Analyzing Connection Speed Issues When Accessing a Specific Website
- Utilizing filters
- Reviewing statistics
Analyzing by Traffic Type
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Identifying consistently slow connections over extended periods
Checking Response Times
- Configuring delta time columns
Inspecting for Machines Infected with Malware
- Examining ARP traffic
Inspecting Sources of Network Traffic
- Intel ANS probe
- Broken or misconfigured software causing network flooding
Pinpointing Performance Issues
- Generating statistical charts and graphs
- Applying color coding in Wireshark
- Filtering traffic
- Using the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting Connections within a Secured Network Environment
- Proxies, firewalls, and clients
Configuring Wireshark for Optimal Performance
- Non-intrusive analysis
Troubleshooting
Summary and Conclusion
Requirements
- A fundamental 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.