* The apache2 php7 or php5 module must be enabled , before ganglia-web works.
  SLE-12* is shipped with php5 and SLE-15* is shipped with php7, for this
  products you also have to add the "Web and Scripting Module".  This can be done
  with a2enmod php7 or a2enmod php5
  apache2 must be restarted after this
* The web interface uses some external java script libraries for a better user 
  experience. The script download_js.sh can be used to download this libraries
  from a host with internet connection.

-- cgoll@suse.de