Kubernetes Network Policy Setup
By default, every pod can talk to every other pod. That's a lateral movement dream for attackers. We implement NetworkPolicies that enforce micro-segmentation — each service only reaches what it explicitly needs.
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Traffic Analysis
Before writing policies, we map your actual traffic patterns using network flow logs or tools like Hubble. This ensures policies are based on real communication needs, not guesses. No legitimate traffic gets accidentally blocked.
Policy Design
We implement default-deny policies per namespace, then whitelist specific ingress and egress flows. Database pods only accept traffic from their application pods. External API calls are restricted to specific egress rules with DNS policies.
CNI & Enforcement
NetworkPolicies require a compatible CNI. We set up Calico or Cilium for full policy support including DNS-based egress rules, global network policies, and policy logging. Cilium's Hubble provides real-time network flow visualization.
Why Anubiz Engineering
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