Labs & Tools
See one idea work, then build it for real.
Every lab and tool here works on its own: no course, no account. Interactive tools run in your browser and answer one question each. Linux labs build a small network on your own machine and capture what it does. Where something goes with a lesson, it says so.
Hands-on Linux labs
Real namespaces, real packets, real kernel state, on Ubuntu or WSL2. Each lab has step-by-step commands, a download, and the exact output to expect. They never touch your real network settings.
Interactive tools
Sandboxes with no goal and no score. Change something, break something, and watch the protocol react.
Real-world checks
Challenges, review and reference
Test what you know without hints, keep it fresh, and look things up.
Certification practice
Flashcards and timed question banks for two AWS exams. This is exam practice, not a Mission Tech course, and it is not affiliated with AWS.