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5 resources
Free hands-on technology journalism and tutorials — AI coding tool comparisons, self-hosting guides, Linux walkthroughs and hardware how-tos.
Why I recommend it: Their side-by-side tool tests are practical; good place to see whether a tool is worth your time before you install it.
A free self-assessment that maps your current Linux, cloud and automation skills against Red Hat's role paths and points you to the training and certifications that close the gaps.
Why I recommend it: Take this before you pay for any cloud certification — it tells you where you actually stand and what to study first.
The official source for the Linux kernel, including release archives, the full kernel documentation and guides for submitting your first patch.
Why I recommend it: If you want to contribute to real open-source infrastructure, the newbies documentation here is the actual front door.
Free downloadable guides, cheat sheets and ebooks on Linux, the command line and open-source software from the It's FOSS team.
Why I recommend it: Good beginner-friendly Linux material — the cheat sheets are worth keeping open while you practise.
Free articles, tutorials and downloadable guides on open-source tools, Linux, containers and community-run projects, written by practitioners.
Why I recommend it: A good habit read — practical how-tos rather than product marketing.
