Linux from Zero #1: What Is Linux and Which Distribution Should You Choose?

When people start studying DevOps, SRE, or Kubernetes, they usually find a long list of tools. But there is a layer underneath all of them: the operating system.

If you do not understand processes, permissions, services, networking, and logs, every container or cluster error can feel mysterious.

Which distribution should you choose?

Ubuntu LTS

My recommendation for a first lab. It has a large community, extensive learning material, and is widely used in cloud environments.

Debian Stable

A strong choice for learning a stable server foundation and the Debian ecosystem. Use it after your first contact with Linux.