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A hands-on learning platform for Linux, Docker, Kubernetes, and Networking
Practice on real servers, solve challenges, and follow guided Linux, Docker, Kubernetes, and Networking learning paths — all from your browser or via SSH.
labctl playground start dockerSpinning up a fresh Docker host... Ready!root@vm:~$ Featured Roadmap
Master Docker
from Zero to Hero
Follow a comprehensive roadmap that combines practical challenges with focused theory and vibrant diagrams. Start with the basics, work through must-have topics, and go deeper when you're ready.
- Structured progression from basics to advanced
- Hands-on challenges with automated checking
- Theory, diagrams, and practical exercises combined
Hands-on Challenges
Prepare for Interviews.
Build Real Skills.
Solve focused, bite-sized problems to gain practical Linux, Docker, Kubernetes, and Networking skills — from easy warm-ups to hard troubleshooting-style scenarios.
- Realistic server environments
- Automated step-by-step checks
- Hints when you're stuck
- Editorial solutions included
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Tutorials & Courses
Deep, illustrated articles with reproducible steps, or structured courses with guided exercises and practical assignments. Every tutorial and lesson comes with an attached playground — try commands right in your browser, no extra setup required.
- Interactive content with embedded playgrounds
- Run commands directly in web terminals or via SSH
- Courses with step-by-step guided exercises
This tutorial was carefully crafted by an independent author and proudly hosted by iximiuz Labs.
Tutorial on
This tutorial was carefully crafted by an independent author and proudly hosted by iximiuz Labs.
Tutorial on
eBPF Tracepoints, Kprobes, or Fprobes: Which One Should You Choose?
In this tutorial, we’ll look at how different eBPF tracing mechanisms work in practice by focusing on a single use case: capturing execve system call events. We’ll start with tracepoints, move on to raw tracepoints, and then cover kprobes and fprobes, showing how each attaches to the kernel and what data they expose. Along the way, we’ll compare their trade-offs in terms of stability, performance, and portability.
Work-in-Progress
Hands-On Firecracker: microVMs From First Principles to Production
A hands-on introduction to Firecracker that takes you from booting your first microVM to building secure, production-ready sandbox infrastructure. Learn how to launch and control microVMs, wire up networking, share data efficiently, and harden execution - the essential skills for running autonomous agents and untrusted workloads safely at scale.
Playgrounds
Experiment Freely
in Safe Sandboxes
Spin up vanilla Linux VMs, fresh Docker hosts, or Kubernetes clusters in seconds. Access playgrounds via browser terminal or SSH and experiment without fear of breaking anything.
- Provisioned in seconds, not minutes
- Browser terminal and SSH access
- Multi-VM setups with custom configurations
- Preserve your progress with persistent drives
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