STEP 1_ Establish Cross-Domain Communication

In order to support communication between an Aptify database server and Aptify e-Business Web server across domains, there must exist a means of communication between the two domains such that the IP address of each domain can be resolved.
Typically, a domain name system (DNS) will house and mange this information, however, if no DNS server exists, at a minimum a host file must exist on one of the servers that associates a static IP address with the domain of the other server. For instance, the hosts file, typically found in C:/Windows/System32/drivers/etc may contain syntax similar to the following:

For this step, confirm that the domains can communicate and that the required DNS server or host file configuration are in place. Also, you may also want to identify at this point which ports you need to open to allow the Web server and database server to communicate. At a minimum, you will need to allow SQL server traffic to pass between the two systems.