diff --git a/config/config.sample.php b/config/config.sample.php
index 2894bc5deb..3951ef8db3 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -65,11 +65,15 @@ $CONFIG = array(
  *   This disallows all other ports on this host
  * - use * as a wildcard, e.g. ubos-raspberry-pi*.local will allow
  *   ubos-raspberry-pi.local and ubos-raspberry-pi-2.local
+ * - the IP address with or without permitted port, e.g. [2001:db8::1]:8080
+ *   Using TLS certificates where commonName=<IP address> is deprecated
  */
 'trusted_domains' =>
   array (
     'demo.example.org',
     'otherdomain.example.org',
+    '10.111.112.113',
+    '[2001:db8::1]'
   ),