diff --git a/conf/lms.conf b/conf/lms.conf
index 34ca1c9f..649582e7 100644
--- a/conf/lms.conf
+++ b/conf/lms.conf
@@ -20,12 +20,15 @@ wt-resources="/usr/share/Wt/resources";
 docroot = "/usr/share/lms/docroot/;/resources,/css,/images,/js,/favicon.ico";
 approot = "/usr/share/lms/approot";
 
-# Turn on this option to allow the demo account creation/use
-#demo = false;
-
 # Acoustic brainz's root API
 acousticbrainz-api-url = "https://acousticbrainz.org/api/v1/";
 
 # API
 api-subsonic = true;
 
+# Logger configuration, see log-config in https://webtoolkit.eu/wt/doc/reference/html/overview.html#config_general
+log-config = "* -debug -info:WebRequest";
+
+# Turn on this option to allow the demo account creation/use
+demo = false;
+
diff --git a/src/av/AvTranscoder.cpp b/src/av/AvTranscoder.cpp
index 1a37cb56..73d55cae 100644
--- a/src/av/AvTranscoder.cpp
+++ b/src/av/AvTranscoder.cpp
@@ -28,7 +28,7 @@
 
 namespace Av {
 
-#define LMS_LOG_TRANSCODE(sev)	LMS_LOG(TRANSCODE, INFO) << "[" << _id << "] - "
+#define LMS_LOG_TRANSCODE(sev)	LMS_LOG(TRANSCODE, sev) << "[" << _id << "] - "
 
 // TODO, parametrize?
 static const std::vector<std::string> execNames =
@@ -179,7 +179,7 @@ Transcoder::start()
 
 	args.push_back("pipe:1");
 
-	LMS_LOG_TRANSCODE(INFO) << "Dumping args (" << args.size() << ")";
+	LMS_LOG_TRANSCODE(DEBUG) << "Dumping args (" << args.size() << ")";
 	for (std::string arg : args)
 		LMS_LOG_TRANSCODE(DEBUG) << "Arg = '" << arg << "'";
 
diff --git a/src/main/main.cpp b/src/main/main.cpp
index 89fb3be6..a63b0c47 100644
--- a/src/main/main.cpp
+++ b/src/main/main.cpp
@@ -70,6 +70,7 @@ std::vector<std::string> generateWtConfig(std::string execPath)
 
 	pt.put("server.application-settings.<xmlattr>.location", "*");
 	pt.put("server.application-settings.log-file", wtLogFilePath.string());
+	pt.put("server.application-settings.log-config", Config::instance().getString("log-level", "info -info:WebRequest"));
 	pt.put("server.application-settings.behind-reverse-proxy", Config::instance().getBool("behind-reverse-proxy", false));
 	pt.put("server.application-settings.progressive-bootstrap", true);
 
@@ -115,8 +116,6 @@ int main(int argc, char* argv[])
 		Wt::WServer server(argv[0]);
 		server.setServerConfiguration (wtServerArgs.size(), const_cast<char**>(wtArgv));
 
-		Wt::WServer::instance()->logger().configure("*"); // log everything, TODO configure this
-
 		// lib init
 		Image::init(argv[0]);
 		Av::AvInit();
diff --git a/src/scanner/MediaScanner.cpp b/src/scanner/MediaScanner.cpp
index 61323d46..59d6f498 100644
--- a/src/scanner/MediaScanner.cpp
+++ b/src/scanner/MediaScanner.cpp
@@ -242,7 +242,6 @@ MediaScanner::requestImmediateScan()
 {
 	_ioService.post([=]()
 	{
-		LMS_LOG(DBUPDATER, INFO) << "Schedule immediate scan";
 		scheduleScan();
 	});
 }
@@ -252,7 +251,6 @@ MediaScanner::requestReschedule()
 {
 	_ioService.post([=]()
 	{
-		LMS_LOG(DBUPDATER, INFO) << "Rescheduling scan";
 		scheduleNextScan();
 	});
 }
@@ -274,6 +272,8 @@ MediaScanner::getStatus()
 void
 MediaScanner::scheduleNextScan()
 {
+	LMS_LOG(DBUPDATER, INFO) << "Scheduling next scan";
+
 	refreshScanSettings();
 
 	Wt::WDateTime now = Wt::WLocalDateTime::currentServerDateTime().toUTC();
diff --git a/src/ui/LmsApplication.cpp b/src/ui/LmsApplication.cpp
index 98563177..87c40549 100644
--- a/src/ui/LmsApplication.cpp
+++ b/src/ui/LmsApplication.cpp
@@ -562,7 +562,7 @@ static std::string escape(std::string str)
 void
 LmsApplication::notifyMsg(MsgType type, const Wt::WString& message, std::chrono::milliseconds duration)
 {
-	LMS_LOG(UI, INFO) << "Notifying message '" << message.toUTF8() << "' of type '" << msgTypeToString(type);
+	LMS_LOG(UI, INFO) << "Notifying message '" << message.toUTF8() << "' of type '" << msgTypeToString(type) << "'";
 
 	std::ostringstream oss;
 
diff --git a/src/utils/Config.cpp b/src/utils/Config.cpp
index 3c39b89f..73566636 100644
--- a/src/utils/Config.cpp
+++ b/src/utils/Config.cpp
@@ -21,20 +21,8 @@
 
 #include <sstream>
 
-namespace {
+#include "utils/Logger.hpp"
 
-}
-
-Config::Config()
-: _config (nullptr)
-{
-}
-
-Config::~Config()
-{
-	if (_config)
-		delete _config;
-}
 
 Config&
 Config::instance()
@@ -44,21 +32,25 @@ Config::instance()
 }
 
 void
-Config::setFile(boost::filesystem::path p)
+Config::setFile(const boost::filesystem::path& p)
 {
-	if (_config != nullptr)
-		delete _config;
-
-	_config = new libconfig::Config();
-
+	_config = std::make_unique<libconfig::Config>();
 	_config->readFile(p.string().c_str());
 }
 
 std::string
-Config::getString(std::string setting, std::string def)
+Config::getString(const std::string& setting, const std::string& def, const std::set<std::string>& allowedValues)
 {
 	try {
-		return _config->lookup(setting);
+		std::string res {(const char*)_config->lookup(setting)};
+
+		if (!allowedValues.empty() && allowedValues.find(res) == allowedValues.end())
+		{
+			LMS_LOG(MAIN, ERROR) << "Invalid setting for '" << setting << "', using default value '" << def << "'";
+			return def;
+		}
+
+		return res;
 	}
 	catch (std::exception &e)
 	{
@@ -67,7 +59,7 @@ Config::getString(std::string setting, std::string def)
 }
 
 boost::filesystem::path
-Config::getPath(std::string setting, boost::filesystem::path path)
+Config::getPath(const std::string& setting, const boost::filesystem::path& path)
 {
 	try {
 		const char* res = _config->lookup(setting);
@@ -80,7 +72,7 @@ Config::getPath(std::string setting, boost::filesystem::path path)
 }
 
 unsigned long
-Config::getULong(std::string setting, unsigned long def)
+Config::getULong(const std::string& setting, unsigned long def)
 {
 	try {
 		return static_cast<unsigned int>(_config->lookup(setting));
@@ -92,7 +84,7 @@ Config::getULong(std::string setting, unsigned long def)
 }
 
 long
-Config::getLong(std::string setting, long def)
+Config::getLong(const std::string& setting, long def)
 {
 	try {
 		return _config->lookup(setting);
@@ -104,7 +96,7 @@ Config::getLong(std::string setting, long def)
 }
 
 bool
-Config::getBool(std::string setting, bool def)
+Config::getBool(const std::string& setting, bool def)
 {
 	try {
 		return _config->lookup(setting);
diff --git a/src/utils/Config.hpp b/src/utils/Config.hpp
index 799e772a..13473e11 100644
--- a/src/utils/Config.hpp
+++ b/src/utils/Config.hpp
@@ -18,34 +18,36 @@
  */
 #pragma once
 
+#include <set>
 
 #include <boost/filesystem.hpp>
 #include <libconfig.h++>
 
 // Used to get config values from configuration files
-class Config
+class Config final
 {
 	public:
 
 		Config(const Config&) = delete;
 		Config& operator=(const Config&) = delete;
+		Config(Config&&) = delete;
+		Config& operator=(Config&&) = delete;
 
 		static Config& instance();
 
-		void		setFile(boost::filesystem::path p);
+		void		setFile(const boost::filesystem::path& p);
 
 		// Default values are returned in case of setting not found
-		std::string	getString(std::string setting, std::string def = "");
-		boost::filesystem::path getPath(std::string setting, boost::filesystem::path def = boost::filesystem::path());
-		unsigned long	getULong(std::string setting, unsigned long def = 0);
-		long		getLong(std::string setting, long def = 0);
-		bool		getBool(std::string setting, bool def = false);
+		std::string	getString(const std::string& setting, const std::string& def = "", const std::set<std::string>& allowedValues = {});
+		boost::filesystem::path getPath(const std::string& setting, const boost::filesystem::path& def = boost::filesystem::path());
+		unsigned long	getULong(const std::string& setting, unsigned long def = 0);
+		long		getLong(const std::string& setting, long def = 0);
+		bool		getBool(const std::string& setting, bool def = false);
 
 	private:
 
-		Config();
-		~Config();
+		Config() = default;
 
-		libconfig::Config	*_config;
+		std::unique_ptr<libconfig::Config> _config;
 };