sssd ldap authentication against samba4 not working

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http://www.linuxquestions.org – I have recently upgraded to samba 4 from samba 3.5 on a RHEL 6.3 platform. It is pleasing that the new version can replace AD DC and has it's own built it kdc and ldb database. Now my intention is to make linux boxes authenticate to samba4 by connecting through ldap as samba 4 works like a kerberized ldap server. I am able to connect using Apache directory studio using the administrator dn to the ldap database. However I am unable to properly configure sssd on RHEL 6 client machines to authenticate against the samba server via ldap. Here is my sssd configuration file- Code: [sssd] config_f (HowTos)