diff --git a/frontend/api.local.php b/frontend/api.local.php
index ad337f4..ef5592c 100644
--- a/frontend/api.local.php
+++ b/frontend/api.local.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-$_CVM = true;
+$_APP = true;
 require("includes/include.base.php");
 
 $return_object = array();
diff --git a/frontend/authenticators/admin.php b/frontend/authenticators/admin.php
index 9a2508b..ac00348 100644
--- a/frontend/authenticators/admin.php
+++ b/frontend/authenticators/admin.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $router->uVariables['display_menu'] = true;
 
diff --git a/frontend/authenticators/api/client.php b/frontend/authenticators/api/client.php
index be0cfda..e49be1b 100644
--- a/frontend/authenticators/api/client.php
+++ b/frontend/authenticators/api/client.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $public_token = $_SERVER['HTTP_API_PUBLIC_TOKEN'];
 $private_token = $_SERVER['HTTP_API_PRIVATE_TOKEN'];
diff --git a/frontend/authenticators/vps.php b/frontend/authenticators/vps.php
index 4ccb193..b23cadf 100644
--- a/frontend/authenticators/vps.php
+++ b/frontend/authenticators/vps.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $router->uVariables['display_menu'] = true;
 
diff --git a/frontend/classes/apikey.php b/frontend/classes/apikey.php
index 9fe0860..f213b98 100644
--- a/frontend/classes/apikey.php
+++ b/frontend/classes/apikey.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 class ApiKey extends CPHPDatabaseRecordClass
 {
diff --git a/frontend/classes/iprange.php b/frontend/classes/iprange.php
index 5e7715b..afed82a 100644
--- a/frontend/classes/iprange.php
+++ b/frontend/classes/iprange.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 define("IP_TYPE_NONE", 0);
 define("IP_TYPE_IPV4", 4);
diff --git a/frontend/classes/node.php b/frontend/classes/node.php
index f20b822..393937a 100644
--- a/frontend/classes/node.php
+++ b/frontend/classes/node.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 class Node extends CPHPDatabaseRecordClass
 {
diff --git a/frontend/classes/sshconnector.php b/frontend/classes/sshconnector.php
index 35f405d..95ae3c7 100644
--- a/frontend/classes/sshconnector.php
+++ b/frontend/classes/sshconnector.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 class SshConnector extends CPHPBaseClass
 {
diff --git a/frontend/classes/template.php b/frontend/classes/template.php
index 6973c26..7bf9c2b 100644
--- a/frontend/classes/template.php
+++ b/frontend/classes/template.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 class Template extends CPHPDatabaseRecordClass
 {
diff --git a/frontend/classes/user.php b/frontend/classes/user.php
index 9a2f528..01569f4 100644
--- a/frontend/classes/user.php
+++ b/frontend/classes/user.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 class User extends CPHPDatabaseRecordClass
 {
diff --git a/frontend/classes/vps.php b/frontend/classes/vps.php
index bb45e47..d842255 100644
--- a/frontend/classes/vps.php
+++ b/frontend/classes/vps.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 class Vps extends CPHPDatabaseRecordClass
 {
diff --git a/frontend/cron.15.php b/frontend/cron.15.php
index e9db17c..9b68837 100644
--- a/frontend/cron.15.php
+++ b/frontend/cron.15.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-$_CVM = true;
+$_APP = true;
 require("includes/include.base.php");
 
 if($result = $database->CachedQuery("SELECT * FROM containers"))
diff --git a/frontend/includes/include.base.php b/frontend/includes/include.base.php
index 6fc6e15..0a1287d 100644
--- a/frontend/includes/include.base.php
+++ b/frontend/includes/include.base.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $_CPHP_CONFIG = "../config.json";
 $_CPHP = true;
@@ -24,7 +24,7 @@ require("include.misc.php");
 
 function __autoload($class_name) 
 {
-	global $_CVM;
+	global $_APP;
 	
 	if(strpos($class_name, "\\") !== false)
 	{
diff --git a/frontend/includes/include.constants.php b/frontend/includes/include.constants.php
index 0583086..8460b29 100644
--- a/frontend/includes/include.constants.php
+++ b/frontend/includes/include.constants.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 define("CVM_VIRTUALIZATION_OPENVZ",			1	);
 
diff --git a/frontend/includes/include.exceptions.php b/frontend/includes/include.exceptions.php
index db934a6..09988f1 100644
--- a/frontend/includes/include.exceptions.php
+++ b/frontend/includes/include.exceptions.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 // SshConnector-related exceptions
 class SshException extends Exception {}
diff --git a/frontend/includes/include.misc.php b/frontend/includes/include.misc.php
index 72dbd3b..525fdf7 100644
--- a/frontend/includes/include.misc.php
+++ b/frontend/includes/include.misc.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 function check_fields($source, $fields, &$errors)
 {
diff --git a/frontend/includes/include.parsing.php b/frontend/includes/include.parsing.php
index b69e6d0..46ee8ca 100644
--- a/frontend/includes/include.parsing.php
+++ b/frontend/includes/include.parsing.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 function split_whitespace($input)
 {
diff --git a/frontend/modules/admin/node/add.php b/frontend/modules/admin/node/add.php
index 48e3ad2..8fdc5bd 100644
--- a/frontend/modules/admin/node/add.php
+++ b/frontend/modules/admin/node/add.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $sErrors = array();
 
diff --git a/frontend/modules/admin/node/list.php b/frontend/modules/admin/node/list.php
index 5e0324e..0e546bd 100644
--- a/frontend/modules/admin/node/list.php
+++ b/frontend/modules/admin/node/list.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $sNodeList = array();
 
diff --git a/frontend/modules/admin/node/lookup.php b/frontend/modules/admin/node/lookup.php
index 1f0ad65..dd91ef0 100644
--- a/frontend/modules/admin/node/lookup.php
+++ b/frontend/modules/admin/node/lookup.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 try
 {
diff --git a/frontend/modules/admin/overview/index.php b/frontend/modules/admin/overview/index.php
index 51dda62..2b7fefd 100644
--- a/frontend/modules/admin/overview/index.php
+++ b/frontend/modules/admin/overview/index.php
@@ -11,6 +11,6 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $sPageContents = Templater::AdvancedParse("{$sTheme}/admin/overview/index", $locale->strings, array());
diff --git a/frontend/modules/admin/user/list.php b/frontend/modules/admin/user/list.php
index b2e0446..df66af0 100644
--- a/frontend/modules/admin/user/list.php
+++ b/frontend/modules/admin/user/list.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $result = $database->CachedQuery("SELECT * FROM users ORDER BY `AccessLevel` DESC");
 
diff --git a/frontend/modules/admin/user/lookup.php b/frontend/modules/admin/user/lookup.php
index 696bb42..f8221c1 100644
--- a/frontend/modules/admin/user/lookup.php
+++ b/frontend/modules/admin/user/lookup.php
@@ -13,7 +13,7 @@
 
 /* TODO: Add "create VPS" button. */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 try
 {
diff --git a/frontend/modules/admin/vps/create.php b/frontend/modules/admin/vps/create.php
index 23e2b15..3b89dfd 100644
--- a/frontend/modules/admin/vps/create.php
+++ b/frontend/modules/admin/vps/create.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $sErrors = array();
 
diff --git a/frontend/modules/admin/vps/list.php b/frontend/modules/admin/vps/list.php
index 7e875a8..aa0242a 100644
--- a/frontend/modules/admin/vps/list.php
+++ b/frontend/modules/admin/vps/list.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $sVpsList = array();
 
diff --git a/frontend/modules/admin/vps/suspend.php b/frontend/modules/admin/vps/suspend.php
index c4e35b4..d5c3f5c 100644
--- a/frontend/modules/admin/vps/suspend.php
+++ b/frontend/modules/admin/vps/suspend.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 try
 {
diff --git a/frontend/modules/api/client/vps/list.php b/frontend/modules/api/client/vps/list.php
index b1d7f2d..511feeb 100644
--- a/frontend/modules/api/client/vps/list.php
+++ b/frontend/modules/api/client/vps/list.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 if($result = $database->CachedQuery("SELECT * FROM containers WHERE `UserId` = :UserId", array(':UserId' => $sApiKey->sUser->sId)))
 {
diff --git a/frontend/modules/client/vps/action/restart.php b/frontend/modules/client/vps/action/restart.php
index c62ba4f..dbde64f 100644
--- a/frontend/modules/client/vps/action/restart.php
+++ b/frontend/modules/client/vps/action/restart.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 try
 {
diff --git a/frontend/modules/client/vps/action/start.php b/frontend/modules/client/vps/action/start.php
index 0ffe1bd..732db7e 100644
--- a/frontend/modules/client/vps/action/start.php
+++ b/frontend/modules/client/vps/action/start.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 if($sVps->sCurrentStatus != CVM_STATUS_STARTED)
 {
diff --git a/frontend/modules/client/vps/action/stop.php b/frontend/modules/client/vps/action/stop.php
index 1e41fb4..bc7907a 100644
--- a/frontend/modules/client/vps/action/stop.php
+++ b/frontend/modules/client/vps/action/stop.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 if($sVps->sCurrentStatus != CVM_STATUS_STOPPED)
 {
diff --git a/frontend/modules/client/vps/console.php b/frontend/modules/client/vps/console.php
index 3dd83d8..d7f7cad 100644
--- a/frontend/modules/client/vps/console.php
+++ b/frontend/modules/client/vps/console.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $sPageContents .= Templater::AdvancedParse("{$sTheme}/client/vps/console", $locale->strings, array(
 	'host'		=> htmlspecialchars($_SERVER['SERVER_NAME']),
diff --git a/frontend/modules/client/vps/list.php b/frontend/modules/client/vps/list.php
index 9aaa799..51efebe 100644
--- a/frontend/modules/client/vps/list.php
+++ b/frontend/modules/client/vps/list.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 if($sLoggedIn === true)
 {
diff --git a/frontend/modules/client/vps/lookup.php b/frontend/modules/client/vps/lookup.php
index e9fe608..e84215d 100644
--- a/frontend/modules/client/vps/lookup.php
+++ b/frontend/modules/client/vps/lookup.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 if(!empty($router->uVariables['action']))
 {
diff --git a/frontend/modules/client/vps/password.php b/frontend/modules/client/vps/password.php
index 9c07e2a..5aa1ce8 100644
--- a/frontend/modules/client/vps/password.php
+++ b/frontend/modules/client/vps/password.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $display_form = true;
 
diff --git a/frontend/modules/client/vps/reinstall.php b/frontend/modules/client/vps/reinstall.php
index cf26597..158a7be 100644
--- a/frontend/modules/client/vps/reinstall.php
+++ b/frontend/modules/client/vps/reinstall.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
  
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 $display_form = true;
 
diff --git a/frontend/modules/error/access.php b/frontend/modules/error/access.php
index 328087e..020fedf 100644
--- a/frontend/modules/error/access.php
+++ b/frontend/modules/error/access.php
@@ -11,6 +11,6 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 throw new UnauthorizedException("You are not allowed to access this page.");
diff --git a/frontend/modules/shared/login.php b/frontend/modules/shared/login.php
index 01da306..d4d9fe6 100644
--- a/frontend/modules/shared/login.php
+++ b/frontend/modules/shared/login.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 if($sLoggedIn === true)
 {
diff --git a/frontend/modules/shared/logout.php b/frontend/modules/shared/logout.php
index b3f5a1c..b5d4e6e 100644
--- a/frontend/modules/shared/logout.php
+++ b/frontend/modules/shared/logout.php
@@ -11,7 +11,7 @@
  * licensing text.
  */
 
-if(!isset($_CVM)) { die("Unauthorized."); }
+if(!isset($_APP)) { die("Unauthorized."); }
 
 if($sLoggedIn === true)
 {
diff --git a/frontend/rewrite.php b/frontend/rewrite.php
index 07ededd..c59a783 100644
--- a/frontend/rewrite.php
+++ b/frontend/rewrite.php
@@ -13,7 +13,7 @@
  
 $timing_start = microtime(true);
  
-$_CVM = true;
+$_APP = true;
 require("includes/include.base.php");
 
 $sTheme = "default";