What is the process for configuring the Pod DNS in Kubernetes?

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To configure the Pod DNS in Kubernetes, follow these steps:

1. First, ensure that the Kubernetes Cluster Domain is configured.

2. Set the hostname of the Pod in the Pod specification or through environment variables.

3. Kubernetes automatically configures the DNS resolution for each Pod. By default, the Pod's DNS name is the Pod's hostname followed by the domain name. The domain name is the Kubernetes Cluster Domain, which is typically "cluster.local."

4. Use the DNS name to access other services within the cluster.

5. Run a test to ensure that the Pod DNS is correctly configured by running a command inside the Pod that pings the DNS name of another Pod or service.

Once these steps are completed, the Pod should be able to communicate with other Pods and services within the cluster using their DNS names.