Networking

Introduction

How exactly do computers, phones, or any electronic devices talk to each other?
How can we access websites that anyone else can reach?
How is it possible to play a computer game with friends when you’re not in the same room?

All of this is what networking is about.
In short, it’s how devices connect so they can share information and communicate.
Networking is everywhere - at home, at school, in offices, big companies and in huge data centers.

Scope

Here is what I cover:

Included:

How devices connect and communicate.
Common network types.
Basic rule the devices most use for communicate - called Protocols.
Useful command and tools.

Not Included:

How exactly the hardware in the devices works to communicate.
Advanced hacking and security tricks.

Subtopics

All subjects I cover in this topic.

OSI model
TCP & UDP
IP
Telnet

Learning Path

Recommended order to learning the subject: