diff --git a/frontend/includes/include.exceptions.php b/frontend/includes/include.exceptions.php
index 81b2173..d5f718f 100644
--- a/frontend/includes/include.exceptions.php
+++ b/frontend/includes/include.exceptions.php
@@ -44,4 +44,6 @@ class ContainerStopException extends ContainerException {}
 class ContainerIpAddException extends ContainerException {}
 class ContainerIpRemoveException extends ContainerException {}
 class ContainerTrafficRetrieveException extends ContainerException {}
+
+class UnauthorizedException extends Exception {}
 ?>
diff --git a/frontend/module.vps.php b/frontend/module.vps.php
index aba388f..2bf67f0 100644
--- a/frontend/module.vps.php
+++ b/frontend/module.vps.php
@@ -17,6 +17,11 @@ try
 {
 	$sContainer = new Container($mainrouter->uParameters[1]);
 	
+	if($sContainer->sUserId != $sUser->sId)
+	{
+		throw new UnauthorizedException("You are not authorized to control this container.");
+	}
+	
 	$sError = "";
 	$sPageContents = "";
 
diff --git a/frontend/rewrite.php b/frontend/rewrite.php
index 33c54d9..b58572b 100644
--- a/frontend/rewrite.php
+++ b/frontend/rewrite.php
@@ -14,6 +14,15 @@
 $_CVM = true;
 require("includes/include.base.php");
 
+if(!empty($_SESSION['userid']))
+{
+	$sUser = new User($sUser);
+}
+else
+{
+	$sUser = new User(0);
+}
+
 $sMainContents = "";
 $sMainClass = "";
 $sPageTitle = "";
@@ -25,19 +34,27 @@ $sPageContents = null;
 $router = null;
 $sError = null;
 
-$mainrouter = new CPHPRouter();
+try
+{
+	$mainrouter = new CPHPRouter();
 
-$mainrouter->routes = array(
-	0 => array(
-		'^/?$'			=> "module.home.php",
-		'^/containers/?$'	=> "module.list.php",
-		'^/login/?$'		=> "module.login.php",
-		'^/logout/?$'		=> "module.logout.php",
-		'^/([0-9]+)(/.*)?$'	=> "module.vps.php"
-	)
-);
+	$mainrouter->routes = array(
+		0 => array(
+			'^/?$'			=> "module.home.php",
+			'^/containers/?$'	=> "module.list.php",
+			'^/login/?$'		=> "module.login.php",
+			'^/logout/?$'		=> "module.logout.php",
+			'^/([0-9]+)(/.*)?$'	=> "module.vps.php"
+		)
+	);
 
-$mainrouter->RouteRequest();
+	$mainrouter->RouteRequest();
+}
+catch (UnauthorizedException $e)
+{
+	$sPageTitle = "Unauthorized";
+	$sMainContents = "You are not authorized to view this page.";
+}
 
 echo(Templater::InlineRender("main", $locale->strings, array(
 	'title'			=> $sPageTitle,