Apache2 set up would probably be more specific. it is pretty easy though.
You will need Apache2 and Mysql. There are a couple addon's you will need for Apache2 also though for full functionality...
But pretty simple this should get you going, open a terminal and use these commands.
sudo apt-get install apache2
sudo apt-get install mysql-server
That will install Apache2 and Mysql. then your web root directory will be at
/var/www/
