diff --git a/photoprism.subdomain.conf.sample b/photoprism.subdomain.conf.sample
index b50f7f2..90776b8 100644
--- a/photoprism.subdomain.conf.sample
+++ b/photoprism.subdomain.conf.sample
@@ -11,7 +11,23 @@ server {
 
     client_max_body_size 0;
 
+    # enable for ldap auth, fill in ldap details in ldap.conf
+    #include /config/nginx/ldap.conf;
+
+    # enable for Authelia
+    #include /config/nginx/authelia-server.conf;
+
     location / {
+        # enable the next two lines for http auth
+        #auth_basic "Restricted";
+        #auth_basic_user_file /config/nginx/.htpasswd;
+
+        # enable the next two lines for ldap auth
+        #auth_request /auth;
+        #error_page 401 =200 /ldaplogin;
+
+        # enable for Authelia
+        #include /config/nginx/authelia-location.conf;
 
         include /config/nginx/proxy.conf;
         include /config/nginx/resolver.conf;