Challenges

Focused, hands-on problems for sharpening your DevOps and server-side skills. Some teach specific concepts while others mirror real-world scenarios. Every challenge includes hints, feedback, and automated solution checks.

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

Challenge, Medium, on Linux, Networking

Enable Internet Access for a Private Network with a NAT Gateway

by Ivan Velichko

Configure a Linux NAT gateway to give Internet access to private RFC 1918 networks while keeping them hidden from the outside world.

#ip #routing #nat #iptables #gateway

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

Challenge, Medium, on Linux, Containers, Networking

Connect Two Network Namespaces

by Ivan Velichko

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

#container-networking #netns #veth #ip

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

Challenge, Medium, on Linux, Containers, Networking

Set Up Network Address Translation (NAT) for a Container

by Ivan Velichko

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?

#container-networking #netns #iptables #nat #ip

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

Challenge, Medium, on Linux, Containers, Networking

Access a Docker Container With No Published Ports

by Ivan Velichko

Learn a bunch of Linux networking tricks while trying to access an Nginx server running inside a Docker container with no published ports.

#docker #debugging #socket #ip