Controlling IP Access to All Ports (Globally)
This section describes how to specify the global IP access setting for ports. The server uses this setting to determine IP access for ports that do not have a custom IP access setting. The default global setting is Allow by Default.
When you create a port, you can customize IP access for it, or you can specify that it use the global IP access setting for the server. If you use the global IP access setting and later change it, the server will use the new global setting for the port. For example, as shipped, the server uses Allow by Default as the global IP access setting (with no hosts explicitly denied). If you create a new port 6666 and do not customize IP access for it, the server uses Allow by Default for port 6666. If you later change the global IP access to Deny by Default, the server will then use Deny by Default for port 6666. If you later customize IP access to port 6666, subsequent changes to the global setting will have no effect on port 6666.