28 Novell eDirectory 8.8 What's New Guidenovdocx (en) 6 April 2007eDirectory in an Evaluation Setup Universities: Many enthusiasts (students) can evaluate eDirectory from the same host usingthe multiple instances. Training for eDirectory administration: Participants can try out administration using the multiple instances. Instructors can use a single host to teach a class of students. Each student can have hisown tree.3.3 Using Multiple InstanceseDirectory 8.8 makes it very easy for you to configure multiple instances. To effectively usemultiple instances, you need to plan the setup and then configure the multiple instances. Section 3.3.1, “Planning the Setup,” on page 28 Section 3.3.2, “Configuring Multiple Instances,” on page 283.3.1 Planning the SetupTo use this feature effectively, we recommend that you plan the eDirectory instances and ensure thateach instance has definite instance identifiers like the hostname, port number, or the configurationfile.While configuring multiple instances, you need to ensure that you have planned for the following: Location of the configuration file Location of the variable data (like log files) Location of the DIB NCPTM interface, unique identifying port for every instance, and ports of other services (likeLDAP, LDAPS, HTTP, and HTTP secure port) Unique server name for every instance3.3.2 Configuring Multiple InstancesYou can configure multiple instances of eDirectory using the ndsconfig utility. The following tablelists the ndsconfig options you need to include when configuring multiple instances.NOTE: All the instances share the same server key (NICI).Option Description--config-file Specifies the absolute path and filename to store the nds.conf configurationfile.For example, to store the configuration file in the /etc/opt/novell/eDirectory/ directory, use --config-file /etc/opt/novell/eDirectory/nds.conf.