Configuration Decisions18 Netscape Directory Server Installation Guide • December 2001Also, you should use the default directory ports (389 and 636) for the userdirectory. If your configuration directory is managed by a server instancededicated to that purpose, you should use some non-standard port for theconfiguration directory.You cannot install a user directory until you have installed a configurationdirectory somewhere on your network.Determining the Administration DomainThe administration domain allows you to logically group Netscape serverstogether so that you can more easily distribute server administrative tasks. Acommon scenario is for two divisions in a company to each want control of theirindividual Netscape servers. However, you may still want some centralizedcontrol of all the servers in your enterprise. Administration domains allow you tomeet these conflicting goals.Administration domains have the following qualities:• All servers share the same configuration directory, regardless of the domainthey belong to.• Servers in two different domains may use two different user directories forauthentication and user management.• The configuration directory administrator has complete access to all installedNetscape servers, regardless of the domain that they belong to.• Each administration domain can be configured with an administration domainowner. This owner has complete access to all the servers in the domain butdoes not have access to the servers in any other administration domain.• The administration domain owner can grant individual users administrativeaccess on a server by server basis within the domain.For many installations, you can have just one administration domain. In this case,choose a name that is representative of your organization. For other installations,you may want different domains because of the demands at your site. In the lattercase, try to name your administration domains after the organizations that willcontrol the servers in that domain.For example, if you are an ISP and you have three customers for whom you areinstalling and managing Netscape servers, create three administration domainseach named after a different customer.