Fundamentals¶
The base layer. Everything in cloud builds on these.
If something in the higher sections feels confusing, come back here first.
Notes in This Section¶
| Note | What It Covers |
|---|---|
| Linux Essentials | Commands, file system, processes, permissions |
| Networking Primer | IP, subnetting, DNS, routing — how data moves |
| Cloud Core Concepts | Shared responsibility, regions/AZs, pricing models |
| Binary & Number Systems | Binary, hex, CIDR — the maths underneath networking |
Why Start Here¶
Cloud is not magic. It's:
- Networking (packets moving between machines)
- Linux (most servers run Linux)
- Virtualisation (many virtual machines on one physical one)
- APIs (services talking to each other over HTTP)
Once those four are clear, every AWS service is just a managed version of something you already understand.