https://community.cloudera.com/t5/Support-Questions/Host-file/m-p/56054#M37448 Ok, the hosts file on the cluster nodes doesn't impact the CM UI. Check the CM logs for any errors (/var/log/cloudera-scm-server/).<BR /><BR />Get the IP address from the CM host and use that in the URL (http://&lt;cm_ip&gt;:7180). You can also verify that CM is runnning (ps -ef | grep cloudera-scm-server) and that it is listening on the right port (sudo netstat -alpn | grep :7180). You can also try access it from the CM host itself (curl http://localhost:7180).<BR /><BR />That will help to see if it is working without messing with name resolution. Sat, 17 Jun 2017 02:07:48 GMT mbigelow 2017-06-17T02:07:48Z