diff --git a/lib/db_ido/servicedbobject.cpp b/lib/db_ido/servicedbobject.cpp
index 57fb7ca47..491c77933 100644
--- a/lib/db_ido/servicedbobject.cpp
+++ b/lib/db_ido/servicedbobject.cpp
@@ -28,9 +28,11 @@
 #include "icinga/notification.h"
 #include "icinga/checkcommand.h"
 #include "icinga/eventcommand.h"
+#include "icinga/externalcommandprocessor.h"
 #include "icinga/compatutility.h"
 #include <boost/foreach.hpp>
 #include <boost/tuple/tuple.hpp>
+#include <boost/algorithm/string/join.hpp>
 
 using namespace icinga;
 
@@ -63,6 +65,8 @@ void ServiceDbObject::StaticInitialize(void)
 
 	Service::OnFlappingChanged.connect(bind(&ServiceDbObject::AddFlappingHistory, _1, _2));
 	Service::OnNewCheckResult.connect(bind(&ServiceDbObject::AddServiceCheckHistory, _1, _2));
+
+	ExternalCommandProcessor::OnNewExternalCommand.connect(bind(&ServiceDbObject::AddExternalCommandHistory, _1, _2, _3));
 }
 
 ServiceDbObject::ServiceDbObject(const DbType::Ptr& type, const String& name1, const String& name2)
@@ -1261,8 +1265,6 @@ void ServiceDbObject::AddServiceCheckHistory(const Service::Ptr& service, const
 
 	Log(LogDebug, "db_ido", "add service check history for '" + service->GetName() + "'");
 
-
-
 	DbQuery query1;
 	query1.Table = "servicechecks";
 	query1.Type = DbQueryInsert;
@@ -1319,3 +1321,25 @@ void ServiceDbObject::AddServiceCheckHistory(const Service::Ptr& service, const
 		OnQuery(query1);
 	}
 }
+
+/* externalcommands */
+void ServiceDbObject::AddExternalCommandHistory(double time, const String& command, const std::vector<String>& arguments)
+{
+	Log(LogDebug, "db_ido", "add external command history");
+
+	DbQuery query1;
+	query1.Table = "externalcommands";
+	query1.Type = DbQueryInsert;
+
+	Dictionary::Ptr fields1 = boost::make_shared<Dictionary>();
+
+	fields1->Set("entry_time", DbValue::FromTimestamp(static_cast<long>(time)));
+	fields1->Set("command_type", Empty); // FIXME
+	fields1->Set("command_name", command);
+	fields1->Set("command_args", boost::algorithm::join(arguments, ";"));
+
+	fields1->Set("instance_id", 0); /* DbConnection class fills in real ID */
+
+	query1.Fields = fields1;
+	OnQuery(query1);
+}
\ No newline at end of file
diff --git a/lib/db_ido/servicedbobject.h b/lib/db_ido/servicedbobject.h
index 30f39beac..8a3228e5d 100644
--- a/lib/db_ido/servicedbobject.h
+++ b/lib/db_ido/servicedbobject.h
@@ -110,6 +110,7 @@ private:
 
         static void AddFlappingHistory(const Service::Ptr& service, FlappingState flapping_state);
         static void AddServiceCheckHistory(const Service::Ptr& service, const Dictionary::Ptr &cr);
+        static void AddExternalCommandHistory(double time, const String& command, const std::vector<String>& arguments);
 };
 
 }
diff --git a/lib/icinga/externalcommandprocessor.cpp b/lib/icinga/externalcommandprocessor.cpp
index b44c6c416..eb142fdaa 100644
--- a/lib/icinga/externalcommandprocessor.cpp
+++ b/lib/icinga/externalcommandprocessor.cpp
@@ -41,6 +41,8 @@ boost::once_flag ExternalCommandProcessor::m_InitializeOnce = BOOST_ONCE_INIT;
 boost::mutex ExternalCommandProcessor::m_Mutex;
 std::map<String, ExternalCommandProcessor::Callback> ExternalCommandProcessor::m_Commands;
 
+boost::signals2::signal<void (double, const String&, const std::vector<String>&)> ExternalCommandProcessor::OnNewExternalCommand;
+
 void ExternalCommandProcessor::Execute(const String& line)
 {
 	if (line.IsEmpty())
@@ -90,6 +92,8 @@ void ExternalCommandProcessor::Execute(double time, const String& command, const
 		callback = it->second;
 	}
 
+	OnNewExternalCommand(time, command, arguments);
+
 	callback(time, arguments);
 }
 
diff --git a/lib/icinga/externalcommandprocessor.h b/lib/icinga/externalcommandprocessor.h
index 49dcd7ae2..2e174c37d 100644
--- a/lib/icinga/externalcommandprocessor.h
+++ b/lib/icinga/externalcommandprocessor.h
@@ -25,6 +25,7 @@
 #include <boost/thread/mutex.hpp>
 #include <boost/thread/once.hpp>
 #include <boost/function.hpp>
+#include <boost/signals2.hpp>
 #include <vector>
 
 namespace icinga
@@ -35,6 +36,8 @@ public:
 	static void Execute(const String& line);
 	static void Execute(double time, const String& command, const std::vector<String>& arguments);
 
+        static boost::signals2::signal<void (double, const String&, const std::vector<String>&)> OnNewExternalCommand;
+
 private:
 	typedef boost::function<void (double time, const std::vector<String>& arguments)> Callback;