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, 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, 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

Challenge, Medium, on Linux, Containers, Networking

Connect Two Network Namespaces

Prove your Linux networking skills by connecting two network namespaces with a virtual Ethernet device.

#netns #veth #ip

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

Challenge, Easy, on Linux, Containers, Networking

Create a Linux Network Namespace

Learn how to create fully isolated virtual network environment using Linux network namespaces.

#netns #nsenter #unshare