http://www.howtoforge.com/zentyal-as-a-gateway-the-perfect-setup http://www.unixmen.com/how-to-enable-and-disable-apache-modules/ http://trentrichardson.com/2011/06/17/enabling-apache-sites-and-modules-in-ubuntu/ So you’ve installed apache and the rest of your lamp system in Ubuntu, and you’re needing to...