Stefan Roman explains how to implement network security in a multi-tenant Kubernetes learning platform. He describes the evolution from a single-namespace architecture to a dual-namespace system that separates the control plane from worker nodes. The discussion covers:

- Implementing NetworkPolicies to create strict namespace isolation and control traffic flow
- Managing cross-namespace communication between the control plane and worker nodes
- Using NodePort services to dynamically expose SSH access only when needed
- Configuring Kubernetes DNS for essential component communication
- Securing public access through a single API server endpoint until lab initialization

Watch the full episode: https://ku.bz/Xz-TrmX2F