diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Plugin.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Plugin.pm
index 0a9d34c2f..e83ba81e1 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Plugin.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Plugin.pm
@@ -5,6 +5,7 @@ package Lemonldap::NG::Portal::Main::Plugin;
 use strict;
 use Mouse;
 use HTML::Template;
+use Data::Dumper;
 
 our $VERSION = '2.1.0';
 
@@ -38,13 +39,13 @@ sub _addRoute {
             return sub {
                 shift;
                 return $sub->( $self, @_ );
-              }
+                }
         }
         else {
             return sub {
                 shift;
                 return $self->$sub(@_);
-              }
+                }
         }
     };
     $self->p->$type( $word, $subName, $methods, $transform );
@@ -56,6 +57,21 @@ sub loadTemplate {
     return $self->p->loadTemplate(@_);
 }
 
+sub accessCtrl {
+    my ( $self, $req, $uri ) = @_;
+    my $url = $self->conf->{portal} . $uri;
+    $self->logger->debug("Plugin call setSecurity for URL: $url");
+
+    # Check access rule
+    my ( $vhost, $appuri ) = $url =~ m#^https?://([^/]*)(.*)#;
+    $vhost =~ s/:\d+$//;
+    $appuri ||= '/';
+    $self->logger->debug(
+        "grant function call with VH: $vhost and URI: $appuri");
+    return $self->p->HANDLER->grant( $req, $req->{userData}, $appuri,
+        undef, $vhost );
+}
+
 1;
 __END__
 
diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Run.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Run.pm
index a9760c0b5..36ec383e0 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Run.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Run.pm
@@ -848,8 +848,8 @@ sub sendCss {
 }
 
 sub lmError {
-    my ( $self, $req ) = @_;
-    my $httpError = $req->param('code');
+    my ( $self, $req, $error ) = @_;
+    my $httpError = $req->param('code') || $error;
 
     # Check URL
     $self->controlUrl($req);
diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/CheckUser.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/CheckUser.pm
index 228c1247c..b464180de 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/CheckUser.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/CheckUser.pm
@@ -44,6 +44,14 @@ sub check {
     my ( $attrs, $array_attrs, $array_hdrs ) = ( {}, [], [] );
     my $msg = my $auth = '';
 
+    # Check access rule
+    unless ( $self->accessCtrl( $req, 'checkuser' ) ) {
+        $self->userLogger->error(
+            "$req->{user} not allowed to access /checkuser");
+        return $self->p->lmError( $req, 403 );
+    }
+    $self->userLogger->notice("$req->{user} is allowed to access /checkuser");
+
     # Check token
     if ( $self->conf->{requireToken} ) {
         my $token = $req->param('token');
@@ -148,6 +156,14 @@ sub check {
 
 sub display {
     my ( $self, $req ) = @_;
+
+    # Check access rule
+    unless ( $self->accessCtrl( $req, 'checkuser' ) ) {
+        $self->userLogger->error(
+            "$req->{user} not allowed to access /checkuser");
+        return $self->p->lmError( $req, 403 );
+    }
+    $self->userLogger->notice("$req->{user} is allowed to access /checkuser");
     my $token = $self->ott->createToken( $req->sessionInfo );
 
     # Display form
@@ -193,11 +209,8 @@ sub _userDatas {
 
 sub _authorization {
     my ( $self, $req, $uri ) = @_;
-
-    # Check rights
     my ( $vhost, $appuri ) = $uri =~ m#^https?://([^/]*)(.*)#;
     $vhost =~ s/:\d+$//;
-    $vhost = $self->p->HANDLER->resolveAlias($vhost);
     $appuri ||= '/';
     return $self->p->HANDLER->grant( $req, $req->{sessionInfo}, $appuri,
         undef, $vhost );