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.

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Official Collection

Challenges crafted by iximiuz Labs to help you master DevOps and Server Side topics.

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

Challenge, Hard, on Networking, Linux

Restrict SSH Bastion Access by User Role

by Ivan Velichko

Harden a bastion host so only admins can get a shell on it, operators can open tunnels to arbitrary destinations, and developers can reach only the one internal service they actually need.

ssh tunnel port-forwarding bastion

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

Challenge, Hard, on Linux, Networking

Forward a Port Without Starting a Proxy Process

by Ivan Velichko

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

port-forwarding iptables socket container-networking

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

by Ivan Velichko

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.

container-networking netns bridge nat ip

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

Challenge, Hard, on Linux, Containers, Networking

Connect Multiple Network Namespaces

by Ivan Velichko

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

container-networking netns veth bridge ip

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