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
Testimonials (5)
Interesting labs, help from trainer
Alexey - Tink Poland sp. z o. o.
Course - Certified Kubernetes Application Developer (CKAD) - exam preparation
The trainer Luc is fantastic, he has in-depth knowledge of the subject, a human approach and an ability to adapt to live needs.
Salim - LHH
Course - Certified Kubernetes Administrator (CKA) - exam preparation
Machine Translated
Trainer very engaging and knowledgeable
Effendy Bin Ahmad sata - SBS transit
Course - Basic Network Troubleshooting Using Wireshark
First of all it was very interesting practically for all topics covered by this training. Well balanced with theory, practise labs and breaks. Some of tips and tricks I have introduced to my work yet.
Dawid Woźny - ATOS PGS sp. z o.o.
Course - Advanced Network Troubleshooting Using Wireshark
I generally was benefit from the whole training.