diff --git a/front/403_internal.html b/front/403_internal.html
new file mode 100644
index 00000000..cbbcc8cf
--- /dev/null
+++ b/front/403_internal.html
@@ -0,0 +1,65 @@
+
+
+
+
+
+ Access Restricted - NetAlertX
+
+
+
+
+
403 Forbidden
+
+ The /server endpoint is for internal use only and cannot be accessed from external browsers or applications.
+
+
+ This security measure protects the backend API. You will need to contact your system administrator in order to gain access to the API port (default: 20212), or use the application through the standard web interface.
+
+
+
+
+
\ No newline at end of file
diff --git a/install/production-filesystem/services/config/nginx/netalertx.conf.template b/install/production-filesystem/services/config/nginx/netalertx.conf.template
index 0dfbeb18..abe3e9e1 100755
--- a/install/production-filesystem/services/config/nginx/netalertx.conf.template
+++ b/install/production-filesystem/services/config/nginx/netalertx.conf.template
@@ -117,6 +117,7 @@ http {
location /server/ {
# 1. Enforcement
+ error_page 403 /403_internal.html;
if ($is_trusted != "TRUSTED") {
return 403;
}