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Beginner

Networking Fundamentals

TCP/IP, DNS, routing and the protocols every defender must read fluently.

14 lessons 6h estimated

Curriculum

  1. 01OSI model — part 1
  2. 02TCP handshakes — part 1
  3. 03DNS resolution — part 1
  4. 04Packet basics — part 1
  5. 05OSI model — part 2
  6. 06TCP handshakes — part 2
  7. 07DNS resolution — part 2
  8. 08Packet basics — part 2
  9. 09OSI model — part 3
  10. 10TCP handshakes — part 3
  11. 11DNS resolution — part 3
  12. 12Packet basics — part 3
  13. 13OSI model — part 4
  14. 14TCP handshakes — part 4
Apply what you learn only in the provided sandboxes or on systems you own or are explicitly authorized to test.