diff --git a/README.md b/README.md
index 594372c..bd6a457 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,7 @@ If you want to embed this into a docker-compose.yml you have to double the dolla
 ```
 echo $(htpasswd -nb user password) | sed -e s/\\$/\\$\\$/g
 ```
+If `DDNS_ADMIN_LOGIN` is not set, all /admin routes are without protection. (use case: auth proxy)
 
 `DDNS_DOMAINS` are the domains of the webservice and the domain zones of your dyndns server (see DNS Setup) i.e. `dyndns.example.com,dyndns.example.org` (comma separated list)
 
@@ -60,6 +61,8 @@ echo $(htpasswd -nb user password) | sed -e s/\\$/\\$\\$/g
 
 `DDNS_DEFAULT_TTL` is the default TTL of your dyndns server.
 
+`DDNS_CLEAR_LOG_INTERVAL` clear log entries automatically in days (integer) e.g. `DDNS_CLEAR_LOG_INTERVAL:30`
+
 ### DNS setup
 
 If your parent domain is `example.com` and you want your dyndns domain to be `dyndns.example.com`,