my openldap with auth_ldap is working fine now.
i modify slapd.conf ACL as following :
access to *
by self write
by dn="cn=authldap,dc=ezplay,dc=tv" read
by * none
then , i using IE5.0 browser to view web that was restricted by .htaccess.
Thus, clients CAN pass through .htaccess authencation :-)
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