By default, all inbound connections that are not explicitly allowed are blocked.
To allow inbound connections to a service:
Note. Configuring firewall for specific network interfaces is only available under Microsoft Windows Server 2003. If you are using Microsoft Windows Server 2008, go to the Firewall Rules tab.
To block the previously allowed inbound connections to a service:
Note. Configuring firewall for specific network interfaces is only available under Microsoft Windows Server 2003. If you are using Microsoft Windows Server 2008, go to the Firewall Rules tab.
Removing a rule blocks the connections that were specified in that rule.