[Fedora-directory-users] How to authenticate fedora-ds

Hi, I have installed fedora-ds on fedora-core-6 linux box, and installed fedora-ds through rpm. I need to authenticate the directory server. Using ldapsearch command, Iam able to fetch the data of the users without specifying the password. Help me up in authenticating the Fedora Directory Server. I need to know, how to disable anonymous access and specify authorization. Thanks in advance.... Thanks, Shivaraj