Samba Update & PAM Configuration

Dear Team,

I'd like to ask for help regarding to a Samba update from version 3.6.9-151.el6 to the Samba release 3.6.19-45.el6 on RHEL6.4. Previous I had a configuration where the file /etc/security/pam_winbind.conf with the following entries

[global]
krb5_auth = yes
krb5_ccache_type = FILE
require_membership_of = AUSTRIA\AD_UX_Users, AUSTRIA\AD_UX_Admins

was used to restrict the access to the host to these two Active Directory groups. Unfortunately the setup routine renamed this file to pam_winbind.conf.rmpsave and the restriction isn't working anymore... I'd be greatful, if anyone can help to suggest a setting with the same funktionality.

Regards, Reinhard