cn is the common name value that must be entered as cn=%s . The %s variable is replaced by the ObjectServer user name. o specifies your organization or company name. ou specifies the organizational unit or department name.

An entry is made up of a collection of attributes that have a unique identifier called a Distinguished Name (DN). A DN has a unique name that identifies the entry at the respective hierarchy. In the example above, John Doe and Jane Doe are different common names (cn) that identify different entries at that same level.

The moniker "ou" means organizational unit. The component "cn=Test2" is an object whose Common Name is "Test2". The moniker "cn" means Common Name. Similarly, the moniker "dc" means domain component.

The authentication request must also specify the particular user account entry. Although this is often called the Common Name (CN), the identifier you use is not necessarily CN. On a computer network, it is appropriate to use UID, the person's user ID, as that is the information that they will provide at logon.