Hi, Look like default fedora-ds accept bind without password. i have test with ldapsearch -x -D "uid=someuser,ou=people,dc=example,dc=com" -w "" has same result as use correct password if i use wrong password , output will returned ldap_bind: Invalid credentials (49) How can i disable bind with blank password ? Thanks Nattapon _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar - get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/