[add] added 403 catchall for invalid domains

certbot/files/entrypoint.sh

@@ -261,6 +261,9 @@ function main()
         # load env variable with domains
         env_domain_file "$domain_file"
 
+        # create nixdomain cert for nginx if none exists (used for direct access)
+        init_cert "nixdomain"
+        
         # create temp certs for domains if none exists
         # nginx need certs to start
         read_file domain_init "$domain_file"