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

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

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

Challenge, Medium, on Linux, Containers, Networking

Set Up Network Address Translation (NAT) for a Container

There is a container that seems to have access to all host's interfaces but for some reason cannot call any addresses outside of the host. Can you fix it?

#netns #iptables #nat