https://community.cloudera.com/t5/Support-Questions/Apache-NiFi-How-to-bypass-the-hostname-validation-in/m-p/369716#M240539 <P><a href="https://community.cloudera.com/t5/user/viewprofilepage/user-id/101284">@JagadeeshJinka</a>&nbsp;I believe the solution here is an entry in the /etc/hosts file on all nifi nodes.&nbsp; Based on above that could possible be:</P><P>&nbsp;</P><P>172.27.130.4 es-saas-es-http.saas.svc.cluster.local</P><P>&nbsp;</P><P>&nbsp;</P><P>However i would recommend fully qualified domains (FQDNS. for example saas.somedomain.com) with matching DNS entries, and SSL certs</P> Fri, 28 Apr 2023 12:02:10 GMT steven-matison 2023-04-28T12:02:10Z