How to restrict "su - ad_user" to show "su: Permission denied" for AD users, but allow local users to switch to other local users using su?

Solution In Progress - Updated -

Issue

  • How to make su command show su: Permission denied for AD users/groups not specified under ad_access_filter ?
  • How to restrict su to AD user and allow to local users only ?

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6

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