Step 01 (Set hostname of your server.) :

Run command below:

hostname server.yourdomain.com

Step 02 (Disable Network Manager.) :

Run command below:

yum remove NetworkManager -y

Step 03 (Run Final cPanel Installation Command) :

cd /home && curl -o latest -L https://securedownloads.cpanel.net/latest && sh latest

(It take 5-30 Minutes to finish depending upon your server configuration )

Step 04 (After Installation done Login into your server) :

Open in browser: https://YOUR-IP:2087/ (Ex: https://35.75.169.80:2087/)

N.B: don't use http use https it will not open with http 

Then login using username root and password same as your root password.