Networking Fundamentals for Cybersecurity Beginners Introduction If you want to learn cybersecurity , you must first understand networking . Every attack, every defense, every scan, and every investigation happens over a network . Many beginners jump straight into tools like Nmap or Metasploit without understanding how data actually moves between computers. That’s like learning how to fight without knowing how to walk. This article explains networking fundamentals in simple terms, using real commands and real examples you can try on your own system. What Is a Network? (Simple Explanation) A network is just a group of devices connected so they can communicate. Examples: Your phone + Wi-Fi router + Internet Computers inside an office Servers connected in a data center Each device on a network needs: An IP address (identity) A way to find other devices ( DNS ) A path to send data ( routing ) IP Address: Identity of a Device An IP address is like a phone number for a computer. Exampl...