You need to create a website in ClearOS as per https://www.clearos.com/resources/documentation/clearos/content:en_us:7_ug_web_server
Some steps may show up if you haven't done before
- Set up your certificate information (just fill in the info)
- Choose between OpenLDAP, Samba and Active Directory. Pick OpenLDAP.
Best practice is to not to use your main domain name as your default website.
Default domain: server.example.org
Additional domain: example.org
files will be at /var/www/virtual/server.org/html/
Pick PHP 5.6 instead of PHP 5.4 when you create new websites -> How to install a PHP version picker on ClearOS
Please note that you must also configure your DNS to point (sub)domains to your server. This is a service typically offered by your domain registrar.
service httpd restart