diff --git a/apps/federatedfilesharing/lib/AppInfo/Application.php b/apps/federatedfilesharing/lib/AppInfo/Application.php
index 9d8464e37d..346d3c4e29 100644
--- a/apps/federatedfilesharing/lib/AppInfo/Application.php
+++ b/apps/federatedfilesharing/lib/AppInfo/Application.php
@@ -30,6 +30,7 @@ use OCA\FederatedFileSharing\Controller\RequestHandlerController;
 use OCA\FederatedFileSharing\FederatedShareProvider;
 use OCA\FederatedFileSharing\Notifications;
 use OCP\AppFramework\App;
+use OCP\GlobalScale\IConfig;
 
 class Application extends App {
 
@@ -91,6 +92,7 @@ class Application extends App {
 	 * initialize federated share provider
 	 */
 	protected function initFederatedShareProvider() {
+		$c = $this->getContainer();
 		$addressHandler = new \OCA\FederatedFileSharing\AddressHandler(
 			\OC::$server->getURLGenerator(),
 			\OC::$server->getL10N('federatedfilesharing'),
@@ -116,7 +118,8 @@ class Application extends App {
 			\OC::$server->getLazyRootFolder(),
 			\OC::$server->getConfig(),
 			\OC::$server->getUserManager(),
-			\OC::$server->getCloudIdManager()
+			\OC::$server->getCloudIdManager(),
+			$c->query(IConfig::class)
 		);
 	}
 
diff --git a/apps/federatedfilesharing/lib/FederatedShareProvider.php b/apps/federatedfilesharing/lib/FederatedShareProvider.php
index 34e02391e0..60a54c6ca3 100644
--- a/apps/federatedfilesharing/lib/FederatedShareProvider.php
+++ b/apps/federatedfilesharing/lib/FederatedShareProvider.php
@@ -85,6 +85,9 @@ class FederatedShareProvider implements IShareProvider {
 	/** @var ICloudIdManager */
 	private $cloudIdManager;
 
+	/** @var \OCP\GlobalScale\IConfig */
+	private $gsConfig;
+
 	/**
 	 * DefaultShareProvider constructor.
 	 *
@@ -98,6 +101,7 @@ class FederatedShareProvider implements IShareProvider {
 	 * @param IConfig $config
 	 * @param IUserManager $userManager
 	 * @param ICloudIdManager $cloudIdManager
+	 * @param \OCP\GlobalScale\IConfig $globalScaleConfig
 	 */
 	public function __construct(
 			IDBConnection $connection,
@@ -109,7 +113,8 @@ class FederatedShareProvider implements IShareProvider {
 			IRootFolder $rootFolder,
 			IConfig $config,
 			IUserManager $userManager,
-			ICloudIdManager $cloudIdManager
+			ICloudIdManager $cloudIdManager,
+			\OCP\GlobalScale\IConfig $globalScaleConfig
 	) {
 		$this->dbConnection = $connection;
 		$this->addressHandler = $addressHandler;
@@ -121,6 +126,7 @@ class FederatedShareProvider implements IShareProvider {
 		$this->config = $config;
 		$this->userManager = $userManager;
 		$this->cloudIdManager = $cloudIdManager;
+		$this->gsConfig = $globalScaleConfig;
 	}
 
 	/**
@@ -941,6 +947,9 @@ class FederatedShareProvider implements IShareProvider {
 	 * @return bool
 	 */
 	public function isOutgoingServer2serverShareEnabled() {
+		if ($this->gsConfig->onlyInternalFederation()) {
+			return false;
+		}
 		$result = $this->config->getAppValue('files_sharing', 'outgoing_server2server_share_enabled', 'yes');
 		return ($result === 'yes');
 	}
@@ -951,6 +960,9 @@ class FederatedShareProvider implements IShareProvider {
 	 * @return bool
 	 */
 	public function isIncomingServer2serverShareEnabled() {
+		if ($this->gsConfig->onlyInternalFederation()) {
+			return false;
+		}
 		$result = $this->config->getAppValue('files_sharing', 'incoming_server2server_share_enabled', 'yes');
 		return ($result === 'yes');
 	}
@@ -961,6 +973,10 @@ class FederatedShareProvider implements IShareProvider {
 	 * @return bool
 	 */
 	public function isLookupServerQueriesEnabled() {
+		// in a global scale setup we should always query the lookup server
+		if ($this->gsConfig->isGlobalScaleEnabled()) {
+			return true;
+		}
 		$result = $this->config->getAppValue('files_sharing', 'lookupServerEnabled', 'no');
 		return ($result === 'yes');
 	}
@@ -972,6 +988,10 @@ class FederatedShareProvider implements IShareProvider {
 	 * @return bool
 	 */
 	public function isLookupServerUploadEnabled() {
+		// in a global scale setup the admin is responsible to keep the lookup server up-to-date
+		if ($this->gsConfig->isGlobalScaleEnabled()) {
+			return false;
+		}
 		$result = $this->config->getAppValue('files_sharing', 'lookupServerUploadEnabled', 'yes');
 		return ($result === 'yes');
 	}
diff --git a/apps/federatedfilesharing/lib/Settings/Admin.php b/apps/federatedfilesharing/lib/Settings/Admin.php
index baac4b1086..47470fd584 100644
--- a/apps/federatedfilesharing/lib/Settings/Admin.php
+++ b/apps/federatedfilesharing/lib/Settings/Admin.php
@@ -25,6 +25,7 @@ namespace OCA\FederatedFileSharing\Settings;
 
 use OCA\FederatedFileSharing\FederatedShareProvider;
 use OCP\AppFramework\Http\TemplateResponse;
+use OCP\GlobalScale\IConfig;
 use OCP\Settings\ISettings;
 
 class Admin implements ISettings {
@@ -32,15 +33,27 @@ class Admin implements ISettings {
 	/** @var FederatedShareProvider */
 	private $fedShareProvider;
 
-	public function __construct(FederatedShareProvider $fedShareProvider) {
+	/** @var IConfig */
+	private $gsConfig;
+
+	/**
+	 * Admin constructor.
+	 *
+	 * @param FederatedShareProvider $fedShareProvider
+	 * @param IConfig $globalScaleConfig
+	 */
+	public function __construct(FederatedShareProvider $fedShareProvider, IConfig $globalScaleConfig) {
 		$this->fedShareProvider = $fedShareProvider;
+		$this->gsConfig = $globalScaleConfig;
 	}
 
 	/**
 	 * @return TemplateResponse
 	 */
 	public function getForm() {
+
 		$parameters = [
+			'internalOnly' => $this->gsConfig->onlyInternalFederation(),
 			'outgoingServer2serverShareEnabled' => $this->fedShareProvider->isOutgoingServer2serverShareEnabled(),
 			'incomingServer2serverShareEnabled' => $this->fedShareProvider->isIncomingServer2serverShareEnabled(),
 			'lookupServerEnabled' => $this->fedShareProvider->isLookupServerQueriesEnabled(),
diff --git a/apps/federatedfilesharing/settings-personal.php b/apps/federatedfilesharing/settings-personal.php
index d70f4e491a..cd22cc1708 100644
--- a/apps/federatedfilesharing/settings-personal.php
+++ b/apps/federatedfilesharing/settings-personal.php
@@ -53,7 +53,7 @@ if(\OC::$server->getAppManager()->isEnabledForUser("theming")) {
 			$textColor = "#000000";
 		}
 	} catch (OCP\AppFramework\QueryException $e) {
-		
+
 	}
 }
 
diff --git a/apps/federatedfilesharing/templates/settings-admin.php b/apps/federatedfilesharing/templates/settings-admin.php
index ff5cb0084e..e106f1dc4e 100644
--- a/apps/federatedfilesharing/templates/settings-admin.php
+++ b/apps/federatedfilesharing/templates/settings-admin.php
@@ -4,6 +4,8 @@
 script('federatedfilesharing', 'settings-admin');
 ?>
 
+<?php if($_['internalOnly'] === false): ?>
+
 <div id="fileSharingSettings" class="followupsection">
 	<h3><?php p($l->t('Federated Cloud Sharing'));?></h3>
 	<a target="_blank" rel="noreferrer" class="icon-info svg"
@@ -42,3 +44,5 @@ script('federatedfilesharing', 'settings-admin');
 	</p>
 
 </div>
+
+<?php endif; ?>
diff --git a/apps/federatedfilesharing/tests/FederatedShareProviderTest.php b/apps/federatedfilesharing/tests/FederatedShareProviderTest.php
index e01e02c83b..3ecd8162ca 100644
--- a/apps/federatedfilesharing/tests/FederatedShareProviderTest.php
+++ b/apps/federatedfilesharing/tests/FederatedShareProviderTest.php
@@ -65,6 +65,8 @@ class FederatedShareProviderTest extends \Test\TestCase {
 	protected $config;
 	/** @var  IUserManager | \PHPUnit_Framework_MockObject_MockObject */
 	protected $userManager;
+	/** @var  \OCP\GlobalScale\IConfig|\PHPUnit_Framework_MockObject_MockObject */
+	protected $gsConfig;
 
 	/** @var IManager */
 	protected $shareManager;
@@ -96,11 +98,11 @@ class FederatedShareProviderTest extends \Test\TestCase {
 		$this->userManager = $this->getMockBuilder('OCP\IUserManager')->getMock();
 		//$this->addressHandler = new AddressHandler(\OC::$server->getURLGenerator(), $this->l);
 		$this->addressHandler = $this->getMockBuilder('OCA\FederatedFileSharing\AddressHandler')->disableOriginalConstructor()->getMock();
+		$this->cloudIdManager = new CloudIdManager();
+		$this->gsConfig = $this->createMock(\OCP\GlobalScale\IConfig::class);
 
 		$this->userManager->expects($this->any())->method('userExists')->willReturn(true);
 
-		$this->cloudIdManager = new CloudIdManager();
-
 		$this->provider = new FederatedShareProvider(
 			$this->connection,
 			$this->addressHandler,
@@ -111,7 +113,8 @@ class FederatedShareProviderTest extends \Test\TestCase {
 			$this->rootFolder,
 			$this->config,
 			$this->userManager,
-			$this->cloudIdManager
+			$this->cloudIdManager,
+			$this->gsConfig
 		);
 
 		$this->shareManager = \OC::$server->getShareManager();
@@ -409,7 +412,8 @@ class FederatedShareProviderTest extends \Test\TestCase {
 					$this->rootFolder,
 					$this->config,
 					$this->userManager,
-					$this->cloudIdManager
+					$this->cloudIdManager,
+					$this->gsConfig
 				]
 			)->setMethods(['sendPermissionUpdate'])->getMock();
 
@@ -674,13 +678,15 @@ class FederatedShareProviderTest extends \Test\TestCase {
 	}
 
 	/**
-	 * @dataProvider dataTestFederatedSharingSettings
+	 * @dataProvider dataTestIsOutgoingServer2serverShareEnabled
 	 *
 	 * @param string $isEnabled
 	 * @param bool $expected
 	 */
-	public function testIsOutgoingServer2serverShareEnabled($isEnabled, $expected) {
-		$this->config->expects($this->once())->method('getAppValue')
+	public function testIsOutgoingServer2serverShareEnabled($internalOnly, $isEnabled, $expected) {
+		$this->gsConfig->expects($this->once())->method('onlyInternalFederation')
+			->willReturn($internalOnly);
+		$this->config->expects($this->any())->method('getAppValue')
 			->with('files_sharing', 'outgoing_server2server_share_enabled', 'yes')
 			->willReturn($isEnabled);
 
@@ -689,14 +695,25 @@ class FederatedShareProviderTest extends \Test\TestCase {
 		);
 	}
 
+	public function dataTestIsOutgoingServer2serverShareEnabled() {
+		return [
+			[false, 'yes', true],
+			[false, 'no', false],
+			[true, 'yes', false],
+			[true, 'no', false],
+		];
+	}
+
 	/**
-	 * @dataProvider dataTestFederatedSharingSettings
+	 * @dataProvider dataTestIsIncomingServer2serverShareEnabled
 	 *
 	 * @param string $isEnabled
 	 * @param bool $expected
 	 */
-	public function testIsIncomingServer2serverShareEnabled($isEnabled, $expected) {
-		$this->config->expects($this->once())->method('getAppValue')
+	public function testIsIncomingServer2serverShareEnabled($onlyInternal, $isEnabled, $expected) {
+		$this->gsConfig->expects($this->once())->method('onlyInternalFederation')
+			->willReturn($onlyInternal);
+		$this->config->expects($this->any())->method('getAppValue')
 			->with('files_sharing', 'incoming_server2server_share_enabled', 'yes')
 			->willReturn($isEnabled);
 
@@ -705,14 +722,25 @@ class FederatedShareProviderTest extends \Test\TestCase {
 		);
 	}
 
+	public function dataTestIsIncomingServer2serverShareEnabled() {
+		return [
+			[false, 'yes', true],
+			[false, 'no', false],
+			[true, 'yes', false],
+			[true, 'no', false],
+		];
+	}
+
 	/**
-	 * @dataProvider dataTestFederatedSharingSettings
+	 * @dataProvider dataTestIsLookupServerQueriesEnabled
 	 *
 	 * @param string $isEnabled
 	 * @param bool $expected
 	 */
-	public function testIsLookupServerQueriesEnabled($isEnabled, $expected) {
-		$this->config->expects($this->once())->method('getAppValue')
+	public function testIsLookupServerQueriesEnabled($gsEnabled, $isEnabled, $expected) {
+		$this->gsConfig->expects($this->once())->method('isGlobalScaleEnabled')
+			->willReturn($gsEnabled);
+		$this->config->expects($this->any())->method('getAppValue')
 			->with('files_sharing', 'lookupServerEnabled', 'no')
 			->willReturn($isEnabled);
 
@@ -721,14 +749,26 @@ class FederatedShareProviderTest extends \Test\TestCase {
 		);
 	}
 
+
+	public function dataTestIsLookupServerQueriesEnabled() {
+		return [
+			[false, 'yes', true],
+			[false, 'no', false],
+			[true, 'yes', true],
+			[true, 'no', true],
+		];
+	}
+
 	/**
-	 * @dataProvider dataTestFederatedSharingSettings
+	 * @dataProvider dataTestIsLookupServerUploadEnabled
 	 *
 	 * @param string $isEnabled
 	 * @param bool $expected
 	 */
-	public function testIsLookupServerUploadEnabled($isEnabled, $expected) {
-		$this->config->expects($this->once())->method('getAppValue')
+	public function testIsLookupServerUploadEnabled($gsEnabled, $isEnabled, $expected) {
+		$this->gsConfig->expects($this->once())->method('isGlobalScaleEnabled')
+			->willReturn($gsEnabled);
+		$this->config->expects($this->any())->method('getAppValue')
 			->with('files_sharing', 'lookupServerUploadEnabled', 'yes')
 			->willReturn($isEnabled);
 
@@ -737,10 +777,12 @@ class FederatedShareProviderTest extends \Test\TestCase {
 		);
 	}
 
-	public function dataTestFederatedSharingSettings() {
+	public function dataTestIsLookupServerUploadEnabled() {
 		return [
-			['yes', true],
-			['no', false]
+			[false, 'yes', true],
+			[false, 'no', false],
+			[true, 'yes', false],
+			[true, 'no', false],
 		];
 	}
 
diff --git a/apps/federatedfilesharing/tests/Settings/AdminTest.php b/apps/federatedfilesharing/tests/Settings/AdminTest.php
index 9eae6317bf..ce47ffb238 100644
--- a/apps/federatedfilesharing/tests/Settings/AdminTest.php
+++ b/apps/federatedfilesharing/tests/Settings/AdminTest.php
@@ -25,6 +25,7 @@ namespace OCA\FederatedFileSharing\Tests\Settings;
 
 use OCA\FederatedFileSharing\Settings\Admin;
 use OCP\AppFramework\Http\TemplateResponse;
+use OCP\GlobalScale\IConfig;
 use Test\TestCase;
 
 class AdminTest extends TestCase {
@@ -32,12 +33,17 @@ class AdminTest extends TestCase {
 	private $admin;
 	/** @var \OCA\FederatedFileSharing\FederatedShareProvider */
 	private $federatedShareProvider;
+	/** @var  IConfig|\PHPUnit_Framework_MockObject_MockObject */
+	private $gsConfig;
 
 	public function setUp() {
 		parent::setUp();
-		$this->federatedShareProvider = $this->getMockBuilder('\OCA\FederatedFileSharing\FederatedShareProvider')->disableOriginalConstructor()->getMock();
+		$this->federatedShareProvider = $this->getMockBuilder('\OCA\FederatedFileSharing\FederatedShareProvider')
+			->disableOriginalConstructor()->getMock();
+		$this->gsConfig = $this->getMock(IConfig::class);
 		$this->admin = new Admin(
-			$this->federatedShareProvider
+			$this->federatedShareProvider,
+			$this->gsConfig
 		);
 	}
 
@@ -73,8 +79,11 @@ class AdminTest extends TestCase {
 			->expects($this->once())
 			->method('isLookupServerUploadEnabled')
 			->willReturn($state);
+		$this->gsConfig->expects($this->once())->method('onlyInternalFederation')
+			->willReturn($state);
 
 		$params = [
+			'internalOnly' => $state,
 			'outgoingServer2serverShareEnabled' => $state,
 			'incomingServer2serverShareEnabled' => $state,
 			'lookupServerEnabled' => $state,
diff --git a/config/config.sample.php b/config/config.sample.php
index b143693082..27499825c6 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -1242,13 +1242,13 @@ $CONFIG = array(
  * During setup, if requirements are met (see below), this setting is set to true
  * and MySQL can handle 4 byte characters instead of 3 byte characters.
  *
- * If you want to convert an existing 3-byte setup into a 4-byte setup please 
+ * If you want to convert an existing 3-byte setup into a 4-byte setup please
  * set the parameters in MySQL as mentioned below and run the migration command:
  *  ./occ db:convert-mysql-charset
  * The config setting will be set automatically after a successful run.
- * 
+ *
  * Consult the documentation for more details.
- * 
+ *
  * MySQL requires a special setup for longer indexes (> 767 bytes) which are
  * needed:
  *
@@ -1530,4 +1530,15 @@ $CONFIG = array(
  */
 'lookup_server' => 'https://lookup.nextcloud.com',
 
+/**
+ * set to true if the server is used in a setup based on Nextcloud's Global Scale architecture
+ */
+'gs.enabled' => false,
+
+/**
+ * by default federation is only used internally in a Global Scale setup
+ * If you want to allow federation outside of your environment set it to 'global'
+ */
+'gs.federation' => 'internal',
+
 );
diff --git a/lib/private/AppFramework/DependencyInjection/DIContainer.php b/lib/private/AppFramework/DependencyInjection/DIContainer.php
index d24836228c..86d14a2f33 100644
--- a/lib/private/AppFramework/DependencyInjection/DIContainer.php
+++ b/lib/private/AppFramework/DependencyInjection/DIContainer.php
@@ -53,6 +53,7 @@ use OCP\AppFramework\IAppContainer;
 use OCP\AppFramework\QueryException;
 use OCP\Files\Folder;
 use OCP\Files\IAppData;
+use OCP\GlobalScale\IConfig;
 use OCP\IL10N;
 use OCP\IRequest;
 use OCP\IServerContainer;
@@ -159,6 +160,10 @@ class DIContainer extends SimpleContainer implements IAppContainer {
 			return $this->getServer()->getEncryptionManager();
 		});
 
+		$this->registerService(IConfig::class, function ($c) {
+			return $c->query(OC\GlobalScale\Config::class);
+		});
+
 		$this->registerService(IValidator::class, function($c) {
 			return $c->query(Validator::class);
 		});
diff --git a/lib/private/GlobalScale/Config.php b/lib/private/GlobalScale/Config.php
new file mode 100644
index 0000000000..3d718e5d04
--- /dev/null
+++ b/lib/private/GlobalScale/Config.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Bjoern Schiessle <bjoern@schiessle.org>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+namespace OC\GlobalScale;
+
+
+use OCP\IConfig;
+
+class Config implements \OCP\GlobalScale\IConfig {
+
+	/** @var IConfig */
+	private $config;
+
+	/**
+	 * Config constructor.
+	 *
+	 * @param IConfig $config
+	 */
+	public function __construct(IConfig $config) {
+		$this->config = $config;
+	}
+
+	/**
+	 * check if global scale is enabled
+	 *
+	 * @since 12.0.1
+	 * @return bool
+	 */
+	public function isGlobalScaleEnabled() {
+		$enabled = $this->config->getSystemValue('gs.enabled', false);
+		return $enabled !== false;
+	}
+
+	/**
+	 * check if federation should only be used internally in a global scale setup
+	 *
+	 * @since 12.0.1
+	 * @return bool
+	 */
+	public function onlyInternalFederation() {
+		// if global scale is disabled federation works always globally
+		$gsEnabled = $this->isGlobalScaleEnabled();
+		if ($gsEnabled === false) {
+			return false;
+		}
+
+		$enabled = $this->config->getSystemValue('gs.federation', 'internal');
+
+		return $enabled === 'internal';
+	}
+
+}
diff --git a/lib/private/Share20/ProviderFactory.php b/lib/private/Share20/ProviderFactory.php
index 609fd87cd1..ddd8177250 100644
--- a/lib/private/Share20/ProviderFactory.php
+++ b/lib/private/Share20/ProviderFactory.php
@@ -24,6 +24,7 @@
 namespace OC\Share20;
 
 use OC\CapabilitiesManager;
+use OC\GlobalScale\Config;
 use OCA\FederatedFileSharing\AddressHandler;
 use OCA\FederatedFileSharing\FederatedShareProvider;
 use OCA\FederatedFileSharing\Notifications;
@@ -125,7 +126,8 @@ class ProviderFactory implements IProviderFactory {
 				$this->serverContainer->getLazyRootFolder(),
 				$this->serverContainer->getConfig(),
 				$this->serverContainer->getUserManager(),
-				$this->serverContainer->getCloudIdManager()
+				$this->serverContainer->getCloudIdManager(),
+				$this->serverContainer->query(Config::class)
 			);
 		}
 
diff --git a/lib/public/GlobalScale/IConfig.php b/lib/public/GlobalScale/IConfig.php
new file mode 100644
index 0000000000..92c19be3af
--- /dev/null
+++ b/lib/public/GlobalScale/IConfig.php
@@ -0,0 +1,51 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Bjoern Schiessle <bjoern@schiessle.org>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+namespace OCP\GlobalScale;
+
+/**
+ * Interface IConfig
+ *
+ * Configuration of the global scale architecture
+ *
+ * @package OCP\GlobalScale
+ * @since 12.0.1
+ */
+interface IConfig {
+
+	/**
+	 * check if global scale is enabled
+	 *
+	 * @since 12.0.1
+	 * @return bool
+	 */
+	public function isGlobalScaleEnabled();
+
+	/**
+	 * check if federation should only be used internally in a global scale setup
+	 *
+	 * @since 12.0.1
+	 * @return bool
+	 */
+	public function onlyInternalFederation();
+
+}
diff --git a/settings/personal.php b/settings/personal.php
index 86ac4f753f..d2b4801e68 100644
--- a/settings/personal.php
+++ b/settings/personal.php
@@ -212,8 +212,14 @@ $tmpl->assign('certs', $certificateManager->listCertificates());
 $tmpl->assign('showCertificates', $enableCertImport);
 $tmpl->assign('urlGenerator', $urlGenerator);
 
-$lookupServerUploadEnabled = $config->getAppValue('files_sharing', 'lookupServerUploadEnabled', 'yes');
-$lookupServerUploadEnabled = $lookupServerUploadEnabled === 'yes';
+$federatedFileSharingEnabled = \OC::$server->getAppManager()->isEnabledForUser('federatedfilesharing');
+$lookupServerUploadEnabled = false;
+if ($federatedFileSharingEnabled) {
+	$federatedFileSharing = new \OCA\FederatedFileSharing\AppInfo\Application();
+	$shareProvider = $federatedFileSharing->getFederatedShareProvider();
+	$lookupServerUploadEnabled = $shareProvider->isLookupServerUploadEnabled();
+}
+
 $tmpl->assign('lookupServerUploadEnabled', $lookupServerUploadEnabled);
 
 // Get array of group ids for this user
diff --git a/tests/lib/GlobalScale/ConfigTest.php b/tests/lib/GlobalScale/ConfigTest.php
new file mode 100644
index 0000000000..ec1581625c
--- /dev/null
+++ b/tests/lib/GlobalScale/ConfigTest.php
@@ -0,0 +1,95 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Bjoern Schiessle <bjoern@schiessle.org>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+namespace Test\GlobalScale;
+
+
+use OC\GlobalScale\Config;
+use OCP\IConfig;
+use Test\TestCase;
+
+class ConfigTest extends TestCase {
+
+	/** @var  IConfig|\PHPUnit_Framework_MockObject_MockObject */
+	private $config;
+
+	public function setUp() {
+		parent::setUp();
+
+		$this->config = $this->createMock(IConfig::class);
+	}
+
+	/**
+	 * @param array $mockMethods
+	 * @return Config|\PHPUnit_Framework_MockObject_MockObject
+	 */
+	public function getInstance($mockMethods = []) {
+
+		if (!empty($mockMethods)) {
+			return $this->getMockBuilder(Config::class)
+				->setConstructorArgs([$this->config])
+				->setMethods($mockMethods)
+				->getMock();
+		}
+
+		return new Config($this->config);
+	}
+
+	public function testIsGlobalScaleEnabled() {
+		$gsConfig = $this->getInstance();
+		$this->config->expects($this->once())->method('getSystemValue')
+			->with('gs.enabled', false)->willReturn(true);
+
+		$result = $gsConfig->isGlobalScaleEnabled();
+
+		$this->assertTrue($result);
+	}
+
+
+	/**
+	 * @dataProvider dataTestOnlyInternalFederation
+	 *
+	 * @param bool $gsEnabled
+	 * @param string $gsFederation
+	 * @param bool $expected
+	 */
+	public function testOnlyInternalFederation($gsEnabled, $gsFederation, $expected) {
+		$gsConfig = $this->getInstance(['isGlobalScaleEnabled']);
+
+		$gsConfig->expects($this->any())->method('isGlobalScaleEnabled')->willReturn($gsEnabled);
+
+		$this->config->expects($this->any())->method('getSystemValue')
+			->with('gs.federation', 'internal')->willReturn($gsFederation);
+
+		$this->assertSame($expected, $gsConfig->onlyInternalFederation());
+	}
+
+	public function dataTestOnlyInternalFederation() {
+		return [
+			[true, 'global', false],
+			[true, 'internal', true],
+			[false, 'global', false],
+			[false, 'internal', false]
+		];
+	}
+
+}