After a dataset has been installed, and the server programs installed, you need to know what its address is. Section 2.1 contains an explanation of the various parts of the OPeNDAP URL, including a diagram in figure 2.1. Refer to this section, with a copy of the Web server configuration data readily available. Using the configuration data, you should be able to determine the appropriate URL for the data you are serving.
Remember that the web server will have its own definition of the root directory for data, and another definition for CGI programs, depending on the configuration.