Kubernetes NetworkPolicy: Pod-Level Firewall is part of the Pro tier — advanced networking topics including BGP routing, Zero Trust, DDoS attacks, QUIC, TLS certificate chains, and more.
This scenario covers
How Kubernetes NetworkPolicy objects define ingress and egress rules between pods, how CNI plugins (Cilium, Calico) enforce them at the kernel level, the default-deny posture, namespace isolation, and why NetworkPolicy alone isn't enough for zero-trust clusters.
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