ServerBuddies Support Blog

ICANNpolicies for Assigning Dedicated IP Addresses to Subdomains

ICANN requires that a website owner meet one of 2 simple requirements before dedicating an IP address to his or her domain. The user’s domain or subdomain must either:

* Require an SSL Certificate — Generally, these certificates are used for e-commerce. SSL Certificates ensure visitors that they are sharing sensitive information on a secure connection with the appropriate domain.
* Run an anonymous FTP site.

Assigning a dedicated IP address for any other reason than the reasons listed above is a violation of ICANN’s terms.
For more information about ICANN policies, you can visit their website here. http://www.icann.org/en/policy/

Managing System Policies in Plesk Panel

System policies define what to do with all incoming, outgoing and transit communications that do not match the explicitly defined rules. The system policies are usually displayed at the bottom of the list of rules.

To allow or deny communications of specific type:

Go to Modules > Firewall > Edit Firewall Configuration.

Click the icon to the left of the policy name you want to change. If the policy currently allows all connections, clicking this icon will prohibit all connections and vice versa.

To apply the changes, click Activate, and then click Activate again.

Source : http://parallels.com/Plesk/