Linux Challenges 🏆

Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.

Pro Tip: Filter the list by tags, category, and difficulty to find challenges that match your proficiency level and interests, or explore our Skill Paths for a more guided learning experience.

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Hard, on Kubernetes, Containers, Linux

Make a Kubernetes Pod Survive an OOM Event Without Restarting

Hack your way through this challenge making the OOM kills invisible again.

#pod-resources #cgroups #oom

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Hard, on Linux, Networking

Forward a Port Without Starting a Proxy Process

Prove your networking skills by mapping one network address to another without starting any additional processes.

#port-forwarding #iptables #socket

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Hard, on Linux, Containers, Networking

Reproduce a Docker Bridge Network Using Basic Linux Commands

The culmination of the Docker networking challenges series. Can you create a Docker-like bridge network from scratch and using nothing but basic Linux commands.

#netns #iptables #bridge #nat #ip

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Hard, on Linux, Containers, Networking

Connect Multiple Network Namespaces

Prove your mastery of Linux and containers by connecting multiple network namespaces into a single network.

#netns #veth #bridge #ip

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Hard, on Linux, Containers, Networking

Network Access to a Container Started by ctr

Learn a bunch of Linux networking tricks while trying to access an Nginx server running inside a container started with ctr and a bare containerd daemon.

#containerd #ctr #docker

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