diff --git a/.vagrant-puppet/files/etc/init.d/icinga_command_proxy b/.vagrant-puppet/files/etc/init.d/icinga_command_proxy
index 68553b94a..77059981f 100644
--- a/.vagrant-puppet/files/etc/init.d/icinga_command_proxy
+++ b/.vagrant-puppet/files/etc/init.d/icinga_command_proxy
@@ -25,7 +25,7 @@ ICINGA_MYSQL_CMD=${ICINGA_MYSQL_CMD:-"/usr/local/icinga-mysql/var/rw/icinga.cmd"
 ICINGA_PGSQL_CMD=${ICINGA_PGSQL_CMD:-"/usr/local/icinga-pgsql/var/rw/icinga.cmd"}
 
 LOCKFILE=${LOCKFILE:-/var/lock/subsys/$PROG}
-PIDFILE=${PIDFILE:-/var/lock/subsys/$PROG/$PROD.pid}
+PIDFILE=${PIDFILE:-/var/lock/subsys/$PROG/$PROG.pid}
 
 RETVAL=0
 
diff --git a/.vagrant-puppet/files/etc/motd b/.vagrant-puppet/files/etc/motd
index 5b5c7973f..7e6677c20 100644
--- a/.vagrant-puppet/files/etc/motd
+++ b/.vagrant-puppet/files/etc/motd
@@ -1,17 +1,16 @@
- ______                                               ___     
-/\__  _\          __                                /'___`\   
-\/_/\ \/     ___ /\_\    ___      __      __       /\_\ /\ \  
-   \ \ \    /'___\/\ \ /' _ `\  /'_ `\  /'__`\     \/_/// /__ 
+ ______                                               ___
+/\__  _\          __                                /'___`\
+\/_/\ \/     ___ /\_\    ___      __      __       /\_\ /\ \
+   \ \ \    /'___\/\ \ /' _ `\  /'_ `\  /'__`\     \/_/// /__
     \_\ \__/\ \__/\ \ \/\ \/\ \/\ \L\ \/\ \L\.\_      // /_\ \
     /\_____\ \____\\ \_\ \_\ \_\ \____ \ \__/.\_\    /\______/
-    \/_____/\/____/ \/_/\/_/\/_/\/___L\ \/__/\/_/    \/_____/ 
-                                  /\____/                     
-                                  \_/__/                      
- __      __          __        
-/\ \  __/\ \        /\ \       
-\ \ \/\ \ \ \     __\ \ \____  
- \ \ \ \ \ \ \  /'__`\ \ '__`\ 
+    \/_____/\/____/ \/_/\/_/\/_/\/___L\ \/__/\/_/    \/_____/
+                                  /\____/
+                                  \_/__/
+ __      __          __
+/\ \  __/\ \        /\ \
+\ \ \/\ \ \ \     __\ \ \____
+ \ \ \ \ \ \ \  /'__`\ \ '__`\
   \ \ \_/ \_\ \/\  __/\ \ \L\ \
    \ `\___x___/\ \____\\ \_,__/
-    '\/__//__/  \/____/ \/___/ 
-
+    '\/__//__/  \/____/ \/___/
diff --git a/config/config.ini.in b/config/config.ini.in
index e19f2fa53..0203511d4 100644
--- a/config/config.ini.in
+++ b/config/config.ini.in
@@ -6,9 +6,6 @@ indexController     = "dashboard"
 dateFormat          = "d/m/Y"
 timeFormat          = "g:i A"
 
-; The directory that contains the symlinks to all enabled directories
-moduleFolder        = "@icingaweb_config_path@/enabledModules"
-
 ; Contains the directories that will be searched for available modules. Modules that
 ; don't exist in these directories can still be symlinked in the module folder, but
 ; won't show up in the list of disabled modules
diff --git a/library/Icinga/Application/ApplicationBootstrap.php b/library/Icinga/Application/ApplicationBootstrap.php
index 13845c4d6..24244db32 100644
--- a/library/Icinga/Application/ApplicationBootstrap.php
+++ b/library/Icinga/Application/ApplicationBootstrap.php
@@ -31,9 +31,12 @@ namespace Icinga\Application;
 
 use DateTimeZone;
 use Exception;
+use Zend_Config;
+use Icinga\Application\Logger;
 use Icinga\Application\Modules\Manager as ModuleManager;
 use Icinga\Data\ResourceFactory;
 use Icinga\Exception\ConfigurationError;
+use Icinga\Exception\NotReadableError;
 use Icinga\Util\DateTimeFactory;
 use Icinga\Util\Translator;
 
@@ -78,7 +81,7 @@ abstract class ApplicationBootstrap
     /**
      * Config object
      *
-     * @var Config
+     * @var Zend_Config
      */
     protected $config;
 
@@ -256,6 +259,13 @@ abstract class ApplicationBootstrap
     public static function start($configDir)
     {
         $application = new static($configDir);
+        // TODO(el): This is subject to change (Feature #5683)
+        date_default_timezone_set('UTC');
+        // Log to the System Log
+        Logger::create(new Zend_Config(array(
+            'type'          => 'syslog',
+            'application'   => 'Icinga Web'
+        )));
         $application->bootstrap();
         return $application;
     }
@@ -309,7 +319,12 @@ abstract class ApplicationBootstrap
         $this->moduleManager = new ModuleManager(
             $this,
             $this->configDir . '/enabledModules',
-            explode(':', $this->config->global->get('modulePath', ICINGA_APPDIR . '/../modules'))
+            explode(
+                ':',
+                $this->config->global !== null
+                    ? $this->config->global->get('modulePath', ICINGA_APPDIR . '/../modules')
+                    : ICINGA_APPDIR . '/../modules'
+            )
         );
         return $this;
     }
@@ -323,21 +338,26 @@ abstract class ApplicationBootstrap
     {
         try {
             $this->moduleManager->loadEnabledModules();
-        } catch (Exception $e) {
+        } catch (NotReadableError $e) {
             Logger::exception(new Exception('Cannot load enabled modules. An exception was thrown:', 0, $e));
         }
         return $this;
     }
 
     /**
-     * Load configuration
+     * Load application configuration
      *
      * @return self
      */
     protected function loadConfig()
     {
         Config::$configDir = $this->configDir;
-        $this->config = Config::app();
+        try {
+            $this->config = Config::app();
+        } catch (NotReadableError $e) {
+            Logger::exception(new Exception('Cannot load application configuration. An exception was thrown:', 0, $e));
+            $this->config = new Zend_Config(array());
+        }
         return $this;
     }
 
@@ -361,19 +381,28 @@ abstract class ApplicationBootstrap
      */
     protected function setupLogger()
     {
-        Logger::create($this->config->logging);
+        if ($this->config->logging !== null) {
+            Logger::create($this->config->logging);
+        }
         return $this;
     }
 
     /**
-     * Setup factories that provide access to the resources
+     * Set up the resource factory
      *
      * @return self
      */
     protected function setupResourceFactory()
     {
-        $config = Config::app('resources');
-        ResourceFactory::setConfig($config);
+        try {
+            $config = Config::app('resources');
+            ResourceFactory::setConfig($config);
+        } catch (NotReadableError $e) {
+            Logger::exception(
+                new Exception('Cannot load resource configuration. An exception was thrown:', 0, $e)
+            );
+        }
+
         return $this;
     }
 
@@ -385,7 +414,7 @@ abstract class ApplicationBootstrap
      */
     protected function setupTimezone()
     {
-        $timeZoneString = $this->config->global->get('timezone', 'UTC');
+        $timeZoneString = $this->config->global !== null ? $this->config->global->get('timezone', 'UTC') : 'UTC';
         try {
             $tz = new DateTimeZone($timeZoneString);
         } catch (Exception $e) {
@@ -406,7 +435,10 @@ abstract class ApplicationBootstrap
     protected function setupInternationalization()
     {
         try {
-            Translator::setupLocale($this->config->global->get('language', Translator::DEFAULT_LOCALE));
+            Translator::setupLocale(
+                $this->config->global !== null ? $this->config->global->get('language', Translator::DEFAULT_LOCALE)
+                    : Translator::DEFAULT_LOCALE
+            );
         } catch (Exception $error) {
             Logger::info($error->getMessage());
         }
diff --git a/library/Icinga/Application/Config.php b/library/Icinga/Application/Config.php
index 277f6c0d7..a7b5e0bfb 100644
--- a/library/Icinga/Application/Config.php
+++ b/library/Icinga/Application/Config.php
@@ -29,8 +29,9 @@
 
 namespace Icinga\Application;
 
-use \Icinga\Exception\ProgrammingError;
-use \Zend_Config_Ini;
+use Zend_Config_Ini;
+use Icinga\Exception\NotReadableError;
+use Icinga\Exception\ProgrammingError;
 
 /**
  * Global registry of application and module configuration.
@@ -68,22 +69,25 @@ class Config extends Zend_Config_Ini
     /**
      * Load configuration from the config file $filename
      *
-     * @param   string      $filename       The filename to parse
+     * @param   string $filename    The filename to parse
 
-     * @see     Zend_Config_Ini::__construct
-     * @throws  Exception                   When the file can't be read
+     * @throws  NotReadableError    When the file does not exist or cannot be read
      */
     public function __construct($filename)
     {
-        if (!@is_readable($filename)) {
-            throw new \Exception('Cannot read config file: ' . $filename);
+        $canonical = realpath($filename);
+        if ($canonical === false) {
+            throw new NotReadableError('Cannot read config file "' . $filename . '". Config file does not exist');
+        }
+        if (!is_readable($canonical)) {
+            throw new NotReadableError('Cannot read config file "' . $filename . '". Permission denied');
         };
-        $this->configFile = $filename;
+        $this->configFile = $canonical;
         $section = null;
         $options = array(
             'allowModifications' => true
         );
-        parent::__construct($filename, $section, $options);
+        parent::__construct($canonical, $section, $options);
     }
 
     /**
@@ -99,7 +103,7 @@ class Config extends Zend_Config_Ini
     {
         if (!isset(self::$app[$configname]) || $fromDisk) {
             $filename = self::$configDir . '/' . $configname . '.ini';
-            self::$app[$configname] = new Config(realpath($filename));
+            self::$app[$configname] = new Config($filename);
         }
         return self::$app[$configname];
     }
diff --git a/library/Icinga/Application/Logger.php b/library/Icinga/Application/Logger.php
index 5bb92e905..bf26d142c 100644
--- a/library/Icinga/Application/Logger.php
+++ b/library/Icinga/Application/Logger.php
@@ -40,6 +40,8 @@ use Icinga\Util\File;
 
 /**
  * Zend_Log wrapper
+ *
+ * TODO(el): This is subject to change (Feature #5683)
  */
 class Logger
 {
@@ -64,17 +66,6 @@ class Logger
      */
     private static $instance;
 
-    /**
-     * Format for logging exceptions
-     */
-    const LOG_EXCEPTION_FORMAT = <<<'EOD'
-%s: %s
-
-Stacktrace
-----------
-%s
-EOD;
-
     /**
      * Create a new Logger
      *
@@ -135,17 +126,17 @@ EOD;
                 default:
                     throw new ConfigurationError('Logger configuration defines an invalid log type "' . $type . '"');
             }
-            if (($priority = $config->priority) === null) {
+            if ($config->priority === null) {
                 $priority = Zend_Log::WARN;
             } else {
-                $priority = (int) $priority;
+                $priority = (int) $config->priority;
             }
             $writer->addFilter(new Zend_Log_Filter_Priority($priority));
             $this->logger->addWriter($writer);
             $this->writers[] = $writer;
         } catch (Zend_Log_Exception $e) {
             throw new ConfigurationError(
-                'Cannot not add log writer of type "' . $type . '". An exception was thrown: '.  $e->getMessage()
+                'Cannot not add log writer of type "' . $type . '". An exception was thrown: ', 0, $e
             );
         }
     }
@@ -235,19 +226,19 @@ EOD;
     /**
      * Log a exception at a priority
      *
-     * @param  Exception    $e   Exception to log
-     * @param  int          $priority  Priority of message
+     * @param  Exception    $e          Exception to log
+     * @param  int          $priority   Priority of message
      */
     public static function exception(Exception $e, $priority = Zend_Log::ERR)
     {
         $message = array();
         do {
             $message[] = self::formatMessage(
-                array(self::LOG_EXCEPTION_FORMAT, get_class($e), $e->getMessage(), $e->getTraceAsString())
+                array('%s in %s:%d %s', get_class($e), $e->getFile(), $e->getLine(), $e->getMessage())
             );
         } while($e = $e->getPrevious());
         self::log(
-            implode(PHP_EOL, $message),
+            implode(' ', $message),
             $priority
         );
     }
diff --git a/library/Icinga/Application/Modules/Manager.php b/library/Icinga/Application/Modules/Manager.php
index 356e3458e..ff18f677f 100644
--- a/library/Icinga/Application/Modules/Manager.php
+++ b/library/Icinga/Application/Modules/Manager.php
@@ -37,6 +37,7 @@ use Icinga\Data\DataArray\Query as ArrayQuery;
 use Icinga\Exception\ConfigurationError;
 use Icinga\Exception\SystemPermissionException;
 use Icinga\Exception\ProgrammingError;
+use Icinga\Exception\NotReadableError;
 
 /**
  * Module manager that handles detecting, enabling and disabling of modules
@@ -99,22 +100,10 @@ class Manager
      *                                              the given path
      *  @param array                $availableDirs  Installed modules location
      **/
-    public function __construct($app, $enabledDir = null, array $availableDirs = array())
+    public function __construct($app, $enabledDir, array $availableDirs)
     {
         $this->app = $app;
-        if (empty($availableDirs)) {
-            $availableDirs = array(realpath(ICINGA_APPDIR . '/../modules'));
-        } else {
-            foreach($availableDirs as $key => $dir) {
-                $dir[$key] = realpath($dir);
-            }
-        }
         $this->modulePaths = $availableDirs;
-        if ($enabledDir === null) {
-            $enabledDir = $this->app->getConfigDir() . '/enabledModules';
-        }
-        $enabledDir = realpath($enabledDir);
-
         $this->enableDir = $enabledDir;
     }
 
@@ -134,54 +123,59 @@ class Manager
      *
      * Update the internal $enabledDirs property with the enabled modules.
      *
-     * @throws ConfigurationError If module dir is not a directory or not readable
+     * @throws ConfigurationError If module dir does not exist, is not a directory or not readable
      */
     private function detectEnabledModules()
     {
+        $canonical = $this->enableDir;
+        if ($canonical === false) {
+            throw new NotReadableError(
+                'Cannot read enabled modules. Module directory "' . $this->enableDir . '" does not exist'
+            );
+        }
         if (!is_dir($this->enableDir)) {
-            throw new ConfigurationError(
-                'Could not read enabled modules: Module directory is not a directory: ' . $this->enableDir
+            throw new NotReadableError(
+                'Cannot read enabled modules. Module directory "' . $this->enableDir . '" is not a directory'
             );
         }
-
         if (!is_readable($this->enableDir)) {
-            throw new ConfigurationError(
-                'Could not read enabled modules: Module directory is not readable: ' . $this->enableDir
+            throw new NotReadableError(
+                'Cannot read enabled modules. Module directory "' . $this->enableDir . '" is not readable'
             );
         }
+        if (($dh = opendir($canonical)) !== false) {
+            $this->enabledDirs = array();
+            while (($file = readdir($dh)) !== false) {
 
-        $fh = opendir($this->enableDir);
+                if ($file[0] === '.' || $file === 'README') {
+                    continue;
+                }
 
-        $this->enabledDirs = array();
-        while (false !== ($file = readdir($fh))) {
+                $link = $this->enableDir . '/' . $file;
+                if (! is_link($link)) {
+                    Logger::warn(
+                        'Found invalid module in enabledModule directory "%s": "%s" is not a symlink',
+                        $this->enableDir,
+                        $link
+                    );
+                    continue;
+                }
 
-            if ($file[0] === '.' || $file === 'README') {
-                continue;
+                $dir = realpath($link);
+                if (!file_exists($dir) || !is_dir($dir)) {
+                    Logger::warn(
+                        'Found invalid module in enabledModule directory "%s": "%s" points to non existing path "%s"',
+                        $this->enableDir,
+                        $link,
+                        $dir
+                    );
+                    continue;
+                }
+
+                $this->enabledDirs[$file] = $dir;
+                ksort($this->enabledDirs);
             }
-
-            $link = $this->enableDir . '/' . $file;
-            if (! is_link($link)) {
-                Logger::warn(
-                    'Found invalid module in enabledModule directory "%s": "%s" is not a symlink',
-                    $this->enableDir,
-                    $link
-                );
-                continue;
-            }
-
-            $dir = realpath($link);
-            if (!file_exists($dir) || !is_dir($dir)) {
-                Logger::warn(
-                    'Found invalid module in enabledModule directory "%s": "%s" points to non existing path "%s"',
-                    $this->enableDir,
-                    $link,
-                    $dir
-                );
-                continue;
-            }
-
-            $this->enabledDirs[$file] = $dir;
-            ksort($this->enabledDirs);
+            closedir($dh);
         }
     }
 
@@ -517,29 +511,37 @@ class Manager
     public function detectInstalledModules()
     {
         foreach ($this->modulePaths as $basedir) {
-            if (!file_exists($basedir)) {
-                Logger::warn('Module path "%s" does not exist.', $basedir);
+            $canonical = realpath($basedir);
+            if ($canonical === false) {
+                Logger::warn('Module path "%s" does not exist', $basedir);
                 continue;
             }
-            $fh = opendir($basedir);
-            if ($fh === false) {
-                return $this;
+            if (!is_dir($canonical)) {
+                Logger::err('Module path "%s" is not a directory', $canonical);
+                continue;
             }
-            while ($name = readdir($fh)) {
-                if ($name[0] === '.') {
-                    continue;
-                }
-                if (is_dir($basedir . '/' . $name)) {
-                    if (! array_key_exists($name, $this->installedBaseDirs)) {
-                        $this->installedBaseDirs[$name] = $basedir . '/' . $name;
-                    } else {
-                        Logger::warn(
-                            'Module "%s" already exists in installation path "%s" and is ignored.',
-                            $basedir . '/' . $name,
-                            $this->installedBaseDirs[$name]
-                        );
+            if (!is_readable($canonical)) {
+                Logger::err('Module path "%s" is not readable', $canonical);
+                continue;
+            }
+            if (($dh = opendir($canonical)) !== false) {
+                while (($file = readdir($dh)) !== false) {
+                    if ($file[0] === '.') {
+                        continue;
+                    }
+                    if (is_dir($canonical . '/' . $file)) {
+                        if (! array_key_exists($file, $this->installedBaseDirs)) {
+                            $this->installedBaseDirs[$file] = $canonical . '/' . $file;
+                        } else {
+                            Logger::warn(
+                                'Module "%s" already exists in installation path "%s" and is ignored.',
+                                $canonical . '/' . $file,
+                                $this->installedBaseDirs[$file]
+                            );
+                        }
                     }
                 }
+                closedir($dh);
             }
         }
         ksort($this->installedBaseDirs);
diff --git a/library/Icinga/Application/Modules/Module.php b/library/Icinga/Application/Modules/Module.php
index 4e6aa7f5a..1670d2d3a 100644
--- a/library/Icinga/Application/Modules/Module.php
+++ b/library/Icinga/Application/Modules/Module.php
@@ -457,25 +457,7 @@ class Module
         }
 
         $this->registerLocales()
-             ->registerRoutes()
-             ->registerMenuEntries();
-        return $this;
-    }
-
-    /**
-     * Register menu entries
-     *
-     * @return self
-     */
-    protected function registerMenuEntries()
-    {
-        $cfg = $this->app
-            ->getConfig()
-            ->module($this->name, 'menu');
-        $view = $this->app->getViewRenderer();
-        if ($cfg) {
-            $view->view->navigation = $cfg->merge($view->view->navigation);
-        }
+             ->registerRoutes();
         return $this;
     }
 
diff --git a/library/Icinga/Application/Web.php b/library/Icinga/Application/Web.php
index d3ae8016d..db5df7ff9 100644
--- a/library/Icinga/Application/Web.php
+++ b/library/Icinga/Application/Web.php
@@ -44,6 +44,7 @@ use \Zend_Controller_Front;
 use Icinga\Application\Logger;
 use Icinga\Authentication\Manager as AuthenticationManager;
 use Icinga\Exception\ConfigurationError;
+use Icinga\Exception\NotReadableError;
 use Icinga\User;
 use Icinga\Web\Request;
 use Icinga\Web\View;
@@ -208,7 +209,15 @@ class Web extends ApplicationBootstrap
      */
     private function setupUser()
     {
-        $authenticationManager = AuthenticationManager::getInstance();
+        try {
+            $config = Config::app('authentication');
+        } catch (NotReadableError $e) {
+            Logger::exception(
+                new Exception('Cannot load authentication configuration. An exception was thrown:', 0, $e)
+            );
+            $config = null;
+        }
+        $authenticationManager = AuthenticationManager::getInstance($config);
         if ($authenticationManager->isAuthenticated() === true) {
             $this->user = $authenticationManager->getUser();
         }
@@ -279,11 +288,10 @@ class Web extends ApplicationBootstrap
 
         $view->view->setEncoding('UTF-8');
         $view->view->headTitle()->prepend(
-            $this->getConfig()->{'global'}->get('project', 'Icinga')
+            $this->config->global !== null ? $this->config->global->get('project', 'Icinga') : 'Icinga'
         );
 
         $view->view->headTitle()->setSeparator(' :: ');
-        $view->view->navigation = $this->getConfig()->app('menu');
 
         $this->viewRenderer = $view;
 
diff --git a/library/Icinga/Authentication/Manager.php b/library/Icinga/Authentication/Manager.php
index f2bd15b13..6c8821061 100644
--- a/library/Icinga/Authentication/Manager.php
+++ b/library/Icinga/Authentication/Manager.php
@@ -36,12 +36,12 @@ use Icinga\Web\Session;
 use Icinga\Data\ResourceFactory;
 use Icinga\Application\Logger;
 use Icinga\Exception\ConfigurationError;
+use Icinga\Exception\NotReadableError;
 use Icinga\Application\Config as IcingaConfig;
 use Icinga\Authentication\Backend\DbUserBackend;
 use Icinga\Authentication\Backend\LdapUserBackend;
 use Icinga\User\Preferences;
 use Icinga\User\Preferences\PreferencesStore;
-use Icinga\Exception\NotReadableError;
 
 /**
  * The authentication manager allows to identify users and
@@ -90,8 +90,10 @@ class Manager
      **/
     private function __construct(Zend_Config $config = null)
     {
-        $this->config = $config === null ? IcingaConfig::app('authentication') : $config;
-        $this->setupBackends($this->config);
+        if ($config !== null) {
+            $this->setupBackends($config);
+            $this->config = $config;
+        }
     }
 
     /**
diff --git a/library/Icinga/Web/Menu.php b/library/Icinga/Web/Menu.php
index 34e5d40d0..e904ff3a0 100644
--- a/library/Icinga/Web/Menu.php
+++ b/library/Icinga/Web/Menu.php
@@ -31,7 +31,8 @@ namespace Icinga\Web;
 
 use Icinga\Application\Config;
 use Icinga\Application\Icinga;
-use Icinga\Web\MenuItem;
+use Icinga\Application\Logger;
+use Icinga\Exception\NotReadableError;
 
 class Menu extends MenuItem
 {
@@ -43,12 +44,22 @@ class Menu extends MenuItem
     public static function fromConfig() {
         $menu = new static('menu');
         $manager =  Icinga::app()->getModuleManager();
-        $menuConfigs = array(Config::app('menu'));
-        foreach ($manager->listEnabledModules() as $moduleName) {
-            $moduleMenuConfig = Config::module($moduleName, 'menu');
-            if ($moduleMenuConfig) {
-                $menuConfigs[] = $moduleMenuConfig;
+        try {
+            $menuConfigs = array(Config::app('menu'));
+        } catch (NotReadableError $e) {
+            Logger::exception($e);
+            $menuConfigs = array();
+        }
+        try {
+
+            foreach ($manager->listEnabledModules() as $moduleName) {
+                $moduleMenuConfig = Config::module($moduleName, 'menu');
+                if ($moduleMenuConfig) {
+                    $menuConfigs[] = $moduleMenuConfig;
+                }
             }
+        } catch (NotReadableError $e) {
+            Logger::exception($e);
         }
         return $menu->loadMenuItems($menu->flattenConfigs($menuConfigs));
     }