404 Not Found Error
The 404 Not Found error might appear
    in the browser when you try to reach the Cloudera Data Science Workbench web
    application.
This error is an indication that your installation of Cloudera Data
        Science Workbench was successful, but there was a mismatch in the domain
        configured in cdsw.conf and the domain referenced in
        the browser. To fix the error, go to
          /etc/cdsw/config/cdsw.conf and check that the URL you
        supplied for the DOMAIN property matches the one you
        are trying to use to reach the web application. This is the wildcard
        domain dedicated to Cloudera Data Science Workbench, not the hostname of
        the master host.
If this requires a change to cdsw.conf, after saving
        the changes run cdsw stop followed by cdsw
          start. 
