There are two ways to install CDH and Hue, which are packaged together–with Cloudera Manager (managed) and without Cloudera Manager (unmanaged). Each method has multiple variations. The Hue Guide includes two managed installs:
The Hue Server is a container web application that sits between your CDH installation and the browser. The Hue server hosts a suite of Hue applications and communicates with CDH component servers.