Curated port reference

Port 10250: Kubelet API

Kubelet API commonly uses port 10250 over TCP. Review its purpose, traffic direction and operational security considerations.

10250TCP

Kubelet API

Kubelet API used by the control plane and node-local components.

Typical use

Control-plane operations, logs, exec and node management against Kubernetes workers.

Traffic direction

Cluster internal

Security considerations

Require authentication and authorization; exposure can grant powerful access to workloads and nodes.