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Course Outline
Introduction
- Wireshark -- not just a last-resort tool
Overview of Network Troubleshooting Concepts
- Root cause analysis
Installing Wireshark
Overview of Wireshark Features
- Navigating the UI interface
Capturing Traffic in the Test Environment
- Selecting the network interface
- Capture packets on wired and wireless networks
Analyzing the Logs
- Inspecting the HTTP packets
- Viewing back-and-forth TCP streams
- Saving the log for offline inspection
Analyzing Connection Speed Issues When Connecting to a Particular Website
- Using filters
- Seeing the statistics
Analyzing by Traffic Type
- DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
- Consistently slow connections over prolonged periods of time
Checking Response Times
- Setting delta time columns
Checking for Machines Infected with a Virus
- Inspecting ARP traffic
Inspecting Sources of Network Traffic
- Intel ANS probe
- Broken/misconfigured software (network flooding)
Pinpointing Performance Issues
- Creating statistical charts and graphs
- Setting colors in Wireshark
- Filtering traffic
- Using 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
- An understanding of TCP/IP networking principles
21 Hours
Testimonials (2)
skills of wireshark
Adam - Centrum Informatyki Resortu Finansow
Course - Network Troubleshooting with Wireshark
Quality of explanation of program operation and analysis of various cases.