1. Download di http://www.apachefriends.org/
  2. Extract ke /opt
    tar xvfz xampp-linux-1.7.3a.tar.gz -C /opt
  3. Beri Hak Akses ke htdocs
    sudo chmod 777 -R /opt/lampp/htdocs/

START : /opt/lampp/lampp start

STOP : /opt/lampp/lampp stop

Sumber : http://freshtutorial.com/install-xamp-ubuntu/