Hi @JinTong , I assume you refer to links in Cloudera Manager UI. I don't think using IP addresses instead of the hostnames would be possible. For your best interest and future proof operations please set up DNS properly in the cluster. Please see our documentation: https://docs.cloudera.com/cdp-private-cloud-base/7.1.7/installation/topics/cdpdc-configure-network-names.html  Thank you  Miklos ... View more