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# Monitor Kubernetes DNS resolution with CoreDNS metrics
<a name="coredns-metrics"></a>

CoreDNS as an EKS add-on exposes the metrics from CoreDNS on port `9153` in the Prometheus format in the `kube-dns` service. You can use Prometheus, the Amazon CloudWatch agent, or any other compatible system to scrape (collect) these metrics.

For an example *scrape configuration* that is compatible with both Prometheus and the CloudWatch agent, see [CloudWatch agent configuration for Prometheus](https://docs.amazonaws.cn/AmazonCloudWatch/latest/monitoring/ContainerInsights-Prometheus-Setup-configure.html) in the *Amazon CloudWatch User Guide*.