مشکل در نصب cpanel

[j4b3r]

service iptables stop
chkconfig iptables off 

[radio]

service iptables stop
chkconfig iptables off 

خیلی خیلی ممنون
من تنظیمات whm رو هم انجام دادم ولی الان یه صفحه ای اومده و به خاطر لایسنس نمیزاره که از whm استفاده کنم.
من میخوام لایسنس 15 روزه رو استفاده کنم.لایسنس رو چطوری باید وارد کنم؟
ارور صفحه :
Thank You for installing cPanel & WHM.

In order to access the interface, you will need to make sure that the software license on this server is active and installed.
Your license could not be activated because:
Cannot Read License File

1. First, go to License Verification - cPanel Inc. and enter the public IP address of this server to make sure it is licensed.
2. If licensed, try running /usr/local/cpanel/cpkeyclt from the command line as root.
3. You'll also need to make sure that port 80 is open to contact our license server and that your server's hostname is a FQDN.