Networking Libri GmbH Networking Fundamentals: The Complete Course - From the OSI Model to Routing, Subnetting, and Network Security, Taught Step by Step

A hands-on course series for anyone building a career in IT - networking, systems administration, and cybersecurity - taught the way real technical training should be: full explanations, real diagrams, worked examples, and hands-on labs using free industry-standard tools like Wireshark and Cisco Packet Tracer. Each course builds on the last, taking you from foundational concepts to job-ready skills, one module at a time.