In order to access the Enterprise Server Administration user interface, the Directory Server must be running.
In a UNIX environment, depending on how Enterprise Server has been installed, either you can use the mfds command to start it, or it can start automatically when the machine is started.
To stop the Directory Server, you use a menu option on the Web interface.
To access the Directory Server using the Web interface, you start a Web browser and enter the address where the Directory Server is running.
Depending on how the Directory Server has been configured, and what you want to do, you might require a user ID and password. What you see and what you can do using Enterprise Server Administration depends on the security configuration settings and the permissions granted to your user account.