title: OpenLDAP Authentication filter
body: <p>we're using openldap server with sssd for user authentication on centos and everything works fine. however, when we try to setup access filter to restrict login to users of a certain group (linuxgroup) as there are a lot of other users in the openldap server.</p>
  
  <p>the issue is in openldap there is no memberof attribute, anyone know how to make it work to filter groups in openldap?</p>