title: Apache2 and ServerRoot directive in Ubuntu
body: <p>I am a noob and I just installed Apache2 on Ubuntu 12.04 machine. When I read /etc/apache2/apache2-conf, I see that the ServerRoot directive is commented out. I did not understand this. Why one would comment out -- ServerRoot "/etc/apache2" -- directive? Is it not necessary or is it defined somewhere else?</p>