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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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: 19/21

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: 13/14

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