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.

Collection

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Community Collection

Challenges contributed by the community members sharing their knowledge and expertise.

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Medium, on Kubernetes, Networking

Enforce a NetworkPolicy to Block All Traffic Except DNS

by Omkar Shelke

A Pod must be fully isolated from the cluster network. Deny all incoming traffic and block all outgoing traffic except DNS queries on port 53.

ckad cka cks network-policy

Submissions: 12/13

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Medium, on Kubernetes, Security, Networking

Control Cross-Namespace Traffic Using NetworkPolicy

by Omkar Shelke

A multi-tier application runs across two namespaces. Learn how to isolate the application tier and restrict database access to only the application namespace.

ckad cka cks network-policy

Submissions: 8/9

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