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XCCDF
Guide to the Secure Configuration of Red Hat OpenShift Container Platform 4
Kubernetes Settings
OpenShift - Kubernetes - Scheduler Settings
Ensure that the port parameter is zero
Ensure that the port parameter is zero
An XCCDF Rule
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Ensure that the port parameter is zero
Medium Severity
The Scheduler API service which runs on port 10251/TCP by default is used for health and metrics information and is available without authentication or encryption. As such it should only be bound to a localhost interface, to minimize the cluster's attack surface.