Updating Packages

Tested on Centos7:
Note: Apache and mod_scgi does not work well on CentOS 7 yet. If you are on CentOS 7 You should choose Nginx while installing.

And make sure to allow the http/https ports in the firewal:
sudo firewall-cmd --permanent --zone=public --add-service=http 
sudo firewall-cmd --permanent --zone=public --add-service=https
sudo firewall-cmd --reload