https://community.cloudera.com/t5/Support-Questions/Host-file/m-p/55908#M37440 <a href="https://community.cloudera.com/t5/user/viewprofilepage/user-id/16544">@csguna</a> no it isn't a requirement. They just all need to resolved the same on all hosts. For me it is about keeping it within enterprise standards and like I said I usually use DNS, which usually contains multiple zones. As a user of it, it find it cleaner to have and . use the FQDN versus just the hostname when it comes to the URLs (although alias can be used as well). Thu, 15 Jun 2017 03:58:56 GMT mbigelow 2017-06-15T03:58:56Z