IT & Infrastructure

Keep the systems behind everything running: learn Linux, shell scripting, system administration and networking with free, step-by-step roadmaps.

About IT & Infrastructure

IT and infrastructure is everything that keeps an organisation's technology running: the servers, operating systems, networks and tools that applications and users depend on. When it works well nobody notices, and when it fails everything stops.

Linux is the foundation, since it runs most servers, cloud platforms and containers, and Bash lets you automate work from the command line. Systems administrators manage servers, users and services day to day, while network engineers design, secure and maintain the networks that connect them.

Good infrastructure work means reliability, security, documentation and automation. The roadmaps below take you from the command line to managing systems and networks, and they are also a strong base for cloud, DevOps and security careers.

Where to start

A suggested order if you are new to IT and infrastructure. Each step builds on the one before.

  1. 1Linux
  2. 2Bash / Shell
  3. 3Systems Administrator
  4. 4Network Engineer

Frequently Asked Questions

Common questions about learning IT & Infrastructure.