In this article explain about how to configure the sql sever pointing to Public IP . Prerequisities: SQLServer 2012(any --v).etc Windows Server 2012 (any --v) Firewall Inbound Calls -SQLServer 2012 SQL Binary Packages- DatabaseEngine,Management Tools,SQL Authentication Instillation Complete : Change build in Account to LocalService After installation Complete IP Enabling Update any Port into the TCP port after that Restart the Service Firewall Allowing the Port Open the SqlServer Change the Connection String in Any Type you can Text it works. Results