Networking Essentials / Ports and protocols
Lesson 15 of 30
Ports
A port is a numbered door on a device, from 0 to 65535. The IP finds the machine and the port finds the program on it.
Key points
- Ports 0-1023 are well-known
- One service listens per port
- Practise in the Port Match game
Quiz · +10 XP
What is the highest port number?
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