{
  if (( $1 == "login" || $1 == "other" ) && $2 == "auth" ) 
    { 
      add = "yes"
      service = $1
    }
  }
/^#/ {
  if ( add == "yes" ) {
    add = no
    print service, "auth binding            pam_unix_auth.so.1 server_policy"
    print service, "auth required           pam_ldap.so.1"
  }
}
/other.*auth.*required.*pam_unix_auth.so.1/ {
$3 = "sufficient"
}
{print}