If you want to configure web server then you need to install php and apache.

to install php and apache in ubuntu ,run this command in terminal

$sudo apt-get install apache2 php5 libapache2-mod-php5

now you need to create test.php by write small code in test.php

$sudo gedit /var/www/test.php

<?

phpinfo();

?>

after saving the above code in test.php saved in /var/www next in browser url type

http://localhost/test.php

below result appears in the browser

if you won’t get above message think installation got failed,try again