Configuring Cloudera Navigator to use external authentication

Cloudera, author of one of the most popular Hadoop distributions, has created a great tool for Hadoop security monitoring and auditing, called Cloudera Navigator. I find its initial configuration process a little bit tricky, so I wanted to document it in this post. Cloudera’s original document on how to do this is located here:
http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/cn_sg_external_auth.html

I currently use the latest version of Cloudera Hadoop distribution with Cloudera Manager 5.3.1 (trial enterprise license) and Navigator 2.2.1. It openly shows its full version and build in a tool-tip on its logo and in ‘About’ section right at the login page (so in case there’s a vulnerability published in future, hackers won’t need to spend time finding out target’s version ;-) ):

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