Course Outline
Introduction
- Wireshark -- A primary diagnostic tool, not merely a last resort
Fundamentals of Network Troubleshooting
- Root cause analysis techniques
Setting Up Wireshark
Exploring Wireshark Capabilities
- Navigating the user interface
Capturing Traffic in a Controlled Environment
- Choosing the appropriate network interface
- Capturing packets on both wired and wireless networks
Log Analysis
- Examining HTTP packets
- Reviewing bidirectional TCP streams
- Exporting logs for detailed offline review
Diagnosing Connection Speed Problems with Specific Websites
- Applying display filters
- Reviewing traffic statistics
Analysis by Traffic Protocol
- Covering DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Investigating persistent slow connections
Evaluating Response Times
- Configuring delta time columns
Detecting Virus-Infected Systems
- Analyzing ARP traffic patterns
Tracing Network Traffic Origins
- Intel ANS probe
- Identifying broken or misconfigured software causing network flooding
Isolating Performance Bottlenecks
- Generating statistical charts and graphs
- Applying color coding in Wireshark
- Refining traffic views with filters
- Leveraging the Wireshark Expert System and TCP/IP Resolution Flowchart
Troubleshooting in Secure Network Environments
- Managing interactions involving proxies, firewalls, and clients
Optimizing Wireshark Configuration
Advanced Troubleshooting Scenarios
Wrap-Up and Key Takeaways
Requirements
- Familiarity with TCP/IP networking fundamentals
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.
