Course Outline
Introduction
- Wireshark as a comprehensive diagnostic instrument rather than a remedial measure
Overview of Network Troubleshooting Methodologies
- Identification of fundamental causes
Deployment of the Wireshark application
Survey of Wireshark Functional Capabilities
- Navigation of the user interface architecture
Acquisition of Data in Controlled Testing Scenarios
- Configuration of the appropriate network interface
- Capture of data packets across wired and wireless infrastructures
Examination of Recorded Data
- Analysis of HTTP packet structures
- Observation of bidirectional TCP session streams
- Archival of data logs for offline evaluation
Diagnosis of Latency Issues Related to Specific Web Resources
- Implementation of filtering protocols
- Review of statistical metrics
Segmentation of Analysis by Protocol Type
- Assessment of DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS traffic
- Investigation of persistent latency over extended durations
Evaluation of Latency Metrics
- Definition of delta time columns
Detection of Systems Compromised by Malware
- Examination of ARP broadcast traffic
Tracing Origins of Network Activity
- Intel ANS probe operations
- Malfunctioning or improperly configured software (packet flooding)
Localization of Performance Deficiencies
- Generation of statistical visualizations
- Configuration of color-coding schemes in Wireshark
- Application of traffic filters
- Utilization of the Wireshark Expert System and TCP/IP Resolution Flowchart
Diagnosis of Connectivity in Restricted Network Environments
- Analysis of proxies, firewalls, and endpoint clients
Optimization of Wireshark Settings for Efficient Operation
- Non-intrusive data evaluation methods
Operational Troubleshooting Procedures
Summary and Final Remarks
Requirements
- Familiarity with the principles of TCP/IP networking
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.