Set($ExternalAuthPriority,  [ 'LDAP1', 'LDAP2', 'LDAP3' ] );
Set($ExternalInfoPriority,  [ 'LDAP1', 'LDAP2', 'LDAP3' ] );
Set($ExternalSettings,
 {'LDAP1' => 
  {
        'type' => 'ldap',
        'auth' => 1,
        'info' => 1,
        'server' => 'server1',
        'user' => 'user',
        'pass' => 'password',
        'base' => 'ou=base',
        'filter' => '(objectClass=*)',
        'd_filter' => '(objectClass=ThisWillNeverMatch)',
        'tls' => 1,
        'group' => '',
        'group_attr' => '',
        'attr_match_list' => [  'Name',
                                'EmailAddress',
                                'RealName',
                                'WorkPhone',
                                'Address2'
                                ],
        'attr_map' => { 'Name' => 'sAMAccountName',
                        'EmailAddress' => 'mail',
                        'Organization' => 'physicalDeliveryOfficeName',
                        'RealName' => 'cn',
                        'ExternalAuthId' => 'sAMAccountName',
                        'Gecos' => 'sAMAccountName',
                        'WorkPhone' => 'telephoneNumber',
                        'Address1' => 'streetAddress',
                        'City' => 'l',
                        'State' => 'st',
                        'Zip' => 'postalCode',
                        'Country' => 'co'
                        }
  }
 },
 {'LDAP2' =>
  {
        'type' => 'ldap',
        'auth' => 1,
        'info' => 1,
        'server' => 'server2',
        'user' => 'user',
        'pass' => 'password',
        'base' => 'ou=base',
        'filter' => '(objectClass=*)',
        'd_filter' => '(objectClass=ThisWillNeverMatch)',
        'tls' => 1,
        'group' => '',
        'group_attr' => '',
        'attr_match_list' => [  'Name',
                                'EmailAddress',
                                'RealName',
                                'WorkPhone',
                                'Address2'
                                ],
        'attr_map' => { 'Name' => 'sAMAccountName',
                        'EmailAddress' => 'mail',
                        'Organization' => 'physicalDeliveryOfficeName',
                        'RealName' => 'cn',
                        'ExternalAuthId' => 'sAMAccountName',
                        'Gecos' => 'sAMAccountName',
                        'WorkPhone' => 'telephoneNumber',
                        'Address1' => 'streetAddress',
                        'City' => 'l',
                        'State' => 'st',
                        'Zip' => 'postalCode',
                        'Country' => 'co'
                        }
  }
 },
 {'LDAP3' =>
  {
        'type' => 'ldap',
        'auth' => 1,
        'info' => 1,
        'server' => 'server3',
        'user' => 'user',
        'pass' => 'password',
        'base' => 'ou=base',
        'filter' => '(objectClass=*)',
        'd_filter' => '(objectClass=ThisWillNeverMatch)',
        'tls' => 1,
        'group' => '',
        'group_attr' => '',
        'attr_match_list' => [  'Name',
                                'EmailAddress',
                                'RealName',
                                'WorkPhone',
                                'Address2'
                                ],
        'attr_map' => { 'Name' => 'sAMAccountName',
                        'EmailAddress' => 'mail',
                        'Organization' => 'physicalDeliveryOfficeName',
                        'RealName' => 'cn',
                        'ExternalAuthId' => 'sAMAccountName',
                        'Gecos' => 'sAMAccountName',
                        'WorkPhone' => 'telephoneNumber',
                        'Address1' => 'streetAddress',
                        'City' => 'l',
                        'State' => 'st',
                        'Zip' => 'postalCode',
                        'Country' => 'co'
                        }
  }
 }
);