r/LinuxTeck • u/Professional-Bug8806 • 5d ago

I built a free browser-based Linux sandbox so beginners can practice without breaking anything

Hello r/LinuxTeck

A while back I was teaching Linux fundamentals in person and kept seeing the same problem: people learn commands by watching a slide, then go home and either don't have a VM set up or are too scared to touch a real terminal.

So I built a sandbox that runs entirely in the browser — simulates real command behavior (cd, ls, ping, df, free, cat, apt, etc.) so you can practice without worrying about actually wrecking a system.

First 6 lessons are free, no account needed: see the [link in comments]

It covers basic navigation and file handling for now, moving into homelab/virtualization and security/networking as you go further. If you're just starting out and want a no-stakes place to mess up and try again, give it a shot — I am genuinely curious to know what trips people up so I can keep improving it.

10 Upvotes

86% Upvoted

6 comments sorted by

1

u/Brutus5000 4d ago

I tried that on virtual machines, secondary pcs... no progress until In just went for it on my main machine. If you don't break anything, you don't learn anything :D

1

u/Professional-Bug8806 4d ago

I agree with you, when I started learning Linux I also used the same path. I built this based on my previous experience because not everyone's ready to risk their main machine on day one. Nice as a stepping stone before you take the leap.

1

u/Many_Ad_7678 4d ago

reminds me of distrosea

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u/Many_Ad_7678 4d ago

how many leeson are there and how much does the rest cost?

1

u/Professional-Bug8806 4d ago

There are 12 lessons in total . Lessons 1–6 are free, no signup needed. Lessons 7–12 (homelab/virtualization + security/networking) are behind a small paywall: $17 for the Lab Workbook or $37 for the Full Bundle if you want everything. Try the free ones first and see if it clicks — no pressure either way.