Learn networking fundamentals. This pathway combines short explanations with hands-on lab exercises you can run on your own machine.
What you will learn
- Module 1 — OSI and TCP/IP models
- Module 2 — IP addressing and subnetting
- Module 3 — Switching, VLANs and ARP
- Module 4 — Routing fundamentals
- Module 5 — DNS in depth
- Module 6 — TCP, UDP and ports
- Module 7 — HTTP and TLS
- Module 8 — Wi-Fi and its weaknesses
- Module 9 — Firewalls and NAT
- Module 10 — Packet capture with Wireshark
- Module 11 — Network scanning with Nmap
- Module 12 — Capstone: map and document a lab network
Before you start
Set up an isolated lab (a virtual machine or a free practice platform). Only test systems you own or have explicit written permission to assess.