diff --git a/config/jail.conf b/config/jail.conf
index 3d971892..1b82b648 100644
--- a/config/jail.conf
+++ b/config/jail.conf
@@ -375,8 +375,11 @@ banaction = %(banaction_allports)s
 logpath = /opt/openhab/logs/request.log
 
 
+# To use more aggressive http-auth modes set filter parameter "mode" in jail.local:
+# normal (default), aggressive (combines all), auth or fallback
+# See "tests/files/logs/nginx-http-auth" or "filter.d/nginx-http-auth.conf" for usage example and details.
 [nginx-http-auth]
-
+# mode = normal
 port    = http,https
 logpath = %(nginx_error_log)s