# Modifying the Services NodePort range (Optional)

`Services` of type `NodePort` are used to expose EMS server listen ports outside the cluster. See Service Object and EMS Client URLs for more information.

The range of allowed values defaults to `30000-32767`.

To use port numbers outside this range for the EMS server or Central Administration server, you can alter the range in the Kubernetes Master Configuration:

## Procedure

1. Locate the file master/master-config.yaml on each OpenShift Master and edit it to set the value of `servicesNodePortRange` to the range of your choice.
   For example:

          serviceNodePortRange: 7000-8000

2. Restart each OpenShift Master service.

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