I am completely new to Ubuntu and I am trying to install LAMP for the first time and I am having some trouble.

I am following the instuctions from this site: 

> 
> <http://www.howtoforge.com/installing-apache2-with-php5-and-mysql-support-on-ubuntu-11.04-lamp>
> 
> 
> 

I am having trouble with Step 4 (installing PHP) whenever I try to restart it, in the terminal it says: 

> 
> waiting apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
> 
> 
> 

I used `sudo` but I really don't understand why its not fully qualified ...