diff --git a/functions.php b/functions.php
index 2fd051a..7472b0c 100644
--- a/functions.php
+++ b/functions.php
@@ -1,6 +1,8 @@
 <?php
 
 $REDIS_HOST='redis-server';
+$SHARED_DIR = "shared";
+$INTERFACE = "directory"; // redis OR directory
 
 function ping_redis() {
 
@@ -117,7 +119,7 @@ function redis_set($key, $value) {
 			$redis->set($key, base64_encode($value));
 			$redis->sAdd('web_in', $key);
 		} else {
-			echo "Key already exist: $key";
+			//echo "Key already exist: $key";
 		}
 	}
 }
@@ -278,4 +280,27 @@ function put_install_envs() {
 	}
 }
 
+function set_output($op,$output) {
+
+	global $SHARED_DIR;
+
+	redis_set($op,$output);
+
+	file_put_contents($SHARED_DIR."/".$op,$output);
+
+	return true;
+}
+
+function check_response($key="") {
+
+	$arr = check_redis("web_out",$key);
+	//$arr = check_files("web_out",$key);
+
+	return $arr;
+}
+
+function remove_response($key) {
+	redis_remove("$key");
+}
+
 ?>
diff --git a/index.html b/index.html
index 65f1e94..e5cbe26 100644
--- a/index.html
+++ b/index.html
@@ -51,6 +51,7 @@ function redirectToManage() {
 function start_system() {
   var url  = 'scan.php?op=system';
   $.get(url, function(data){
+    console.log('start_system: '+data);
     if (data=='OK') {
       $("#previous").html('Scanning for previous install. Please wait...');
       check_system();
@@ -64,7 +65,7 @@ function start_system() {
 function check_system() {
   var url  = 'scan.php?op=check_system';
   $.get(url, function(data){
-    console.log(data);
+    console.log('check_system: '+data);
     if (data=='NEW') {
       $("#previous").html('No previous install has found...');
       setTimeout(redirectToInstall, 3000);
@@ -86,7 +87,7 @@ function check_redis() {
 
   var url  = 'scan.php?op=redis';
   $.get(url, function(data){
-    console.log(data);
+    console.log('check_redis: '+data);
     if (data=='OK') {
       $("#redis").html('Redis server - OK');
       start_system();
@@ -98,7 +99,39 @@ function check_redis() {
   });
 }
 
-  check_redis();
+function check_directory() {
+
+  var url  = 'scan.php?op=directory';
+  $.get(url, function(data){
+    console.log('check_directory: '+data);
+    if (data=='OK') {
+      $("#redis").html('Connection is ready - OK');
+      start_system();
+    }
+    else {
+      $("#redis").html('Shared directory is not available...');
+    }
+  });
+}
+
+function check_interface() {
+
+  var url  = 'scan.php?op=get_interface';
+  $.get(url, function(data){
+    console.log('check_interface: '+data);
+    if (data=='redis') {
+  	check_redis();
+    }
+    else if (data=='directory') {
+  	check_directory();
+    }
+    else {
+	$("#redis").html('Invalid interface definition...');
+    }
+  });
+}
+
+  check_interface();
 
   //setTimeout(redirectToManage, 10000);
 
diff --git a/scan.php b/scan.php
index d5891b8..1edfd90 100644
--- a/scan.php
+++ b/scan.php
@@ -3,6 +3,21 @@ include "functions.php";
 
 sleep(1);
 switch ($_GET["op"]) {
+	case "get_interface":
+		echo $INTERFACE;
+	break;
+	case "directory":
+		if (file_exists($SHARED_DIR)) {
+			$test_file = $SHARED_DIR."/test";
+			file_put_contents($test_file,"TEST");
+			if (file_exists($test_file)) {
+				echo "OK";
+				unlink($test_file);
+			}
+			else echo "WRITE ERROR";
+		}
+		else echo "DIRECTORY DOESN'T EXISTS";
+	break;
 	case "redis":
 		try {
 			$ret = ping_redis();
@@ -33,12 +48,10 @@ switch ($_GET["op"]) {
 		$arr = array("STATUS" => 0);
 		$json = json_encode($arr, JSON_UNESCAPED_SLASHES|JSON_PRETTY_PRINT);
 
-		$op = "system"; //"init:".date("YmdHis");
-		redis_set($op,$json);
-		echo "OK"; // TODO?
+		if (set_output("system",$json)) echo "OK"; // TODO?
 	break;
 	case "check_system":
-		$arr = check_redis("web_out","system");
+		$arr = check_response("system");
 		if (!empty($arr)) {
 			foreach ($arr as $key=>$data) {
 				if ($key=="system") {
@@ -54,7 +67,7 @@ switch ($_GET["op"]) {
 						}
 						else echo "EXISTS";
 					}
-					redis_remove("$key");
+					remove_response("$key");
 				}
 			}
 		}