This guide will explain the basics on installing an Apache web server with PHP5 on your VPS.
First, login to your BeastNode VPS and run the following commands:
yum install httpd
yum install php php-mysql
Now start up the Apache/HTTPD server:
service httpd restart
If there weren't any errors, you should now be able to access your web server using the IP address of your VPS. You should see a test page confirming that the installation worked.
You can find the default root directory (where your website files are stored) in the following folder:
/var/www/html