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Practice Linux, Docker, Kubernetes, Git, and Python in live remote labs with AI-powered real-time guidance.

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6 launch courses · Live remote labs · AI real-time guidance
reallab.io/labs/linux-03-processes
Why it's different

Not just
another course

Most platforms teach you to watch. We teach you to do — in environments that behave exactly like production.

// 01

Real labs,
not videos

Every exercise runs in a live remote environment. You type real commands, see real output, make real mistakes — and actually learn from them.

Hands-on
linux-lab-03 · node-01
# Lab 03 — Process Management
 
$ ps aux | sort -rk3 | head -5
USER PID %CPU COMMAND
root 892 8.3 nginx: master
www 893 0.4 nginx: worker
 
$ kill -TERM 892
✓ Graceful shutdown sent
Ai guidance · contextual
I ran kill -9 but it says permission denied
You're running as www-data but nginx master is owned by root. Try sudo kill -TERM $(pgrep -o nginx) — and note SIGTERM is safer than SIGKILL here.
// 02

AI that sees
your terminal

Guidance is based on your actual commands, errors, and environment state — not generic hints.

AI-powered
// 03

Multi-node
environments

Start lightweight for basics. Scale to real multi-node clusters for Kubernetes and networking.

Advanced
master
172.25.0.2
node-1
172.25.0.3
node-2
172.25.0.4
How it works

Three steps.
Zero setup.

🐧
Linux
Beginner
🐳
Docker
Containers
☸️
K8s
Multi-node
⎇
Git
Essential
🐍
Python
Scripting
🌐
Network
Advanced
console
reallab $
Launch Environment
Click to provision lab environment
// Ai guidance
$chmod 700 /etc/passwd
Setting /etc/passwd to 700 breaks system auth — daemons need read access. Use 644 instead.
$chmod 644 /etc/passwd
✓ Correct. Step complete.
Launch courses

Six courses.
All hands-on.

Every course ships with live labs, AI guidance, and auto-graded checkpoints.

🐧
Linux
Commands, processes, networking, and troubleshooting in real shell environments.
BeginnerHands-on
🐳
Docker
Build, run, and debug containers in live labs. From first image to compose stacks.
ContainersPractical
☸️
Kubernetes
Practice cluster workflows in real multi-node environments. Pods to production.
Multi-nodeAdvanced
⎇
Git
Branching, merging, rebasing, and collaboration — practiced in real repositories.
EssentialDeveloper
🐍
Python
Write scripts and solve guided coding exercises in live Python environments.
ScriptingBeginner
🌐
Networking
BGP, OSPF, and real routing protocols on live multi-node network topologies.
Multi-nodeAdvanced
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