Network Packet Analysis and Security with Wireshark

Understanding exactly how data moves across a network is the foundation of modern IT security and troubleshooting. This text-based course guides you through the essentials of packet analysis, transforming raw data into actionable security insights. You will develop the ability to dissect network communication, recognize normal behavior, and spot the subtle signs of a security breach. By reading through detailed explanations and practical analysis scenarios, you will build a solid technical foundation in network forensics. What you'll learn: - Understand foundational networking protocols and the OSI model through written packet breakdowns. - Capture and filter live traffic to isolate specific security incidents or performance bottlenecks. - Analyze common application layer protocols to identify misconfigurations and vulnerabilities. - Practice detecting modern security threats like port scanning and unauthorized data transfers. - Interpret encrypted traffic patterns and modern protocol headers including TLS and QUIC basics. - Apply systematic troubleshooting workflows to resolve complex connectivity issues. The course begins with essential terminology and the mechanics of packet capture before moving into protocol-specific analysis and real-world security scenarios. This written curriculum ensures you grasp the logic behind the traffic before applying it to live environments. This course is designed for beginners in IT security, network administration, or systems engineering who have no prior experience with packet analysis tools. No prerequisites are required. Start building your network analysis expertise through comprehensive written guidance.