how to make some of attributes as unique

[Bala <egrpbala@yahoo.com>]

Hi All,
       I have setup my openldap server,  
now I need your advice about, how to enforce
some of the attributes as unique, say uid, mail etc.,

 is it possible in ldap configuration, or we need
to implement seperately??

thanks in advance,
-bala-

__________________________________
Do you Yahoo!?
Yahoo! Mail SpamGuard - Read only the mail you want.
http://antispam.yahoo.com/tools