diff --git a/docs/usage.rst b/docs/usage.rst
index e5ce72418d671feff37dd1898cf1b035f7756739..bcff5b9ee1b06542777db082e9d0143961a401f7 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -511,6 +511,12 @@ Each server needs to share some common configuration in order to be functioning
 properly. This includes set-up of some shared accounts, perhaps some hardening
 etc.
 
+.. note::
+   Should you ever need to limit what hosts can connect to a server
+   for some kind of maintenance or upgrade purposes, the ``common``
+   role comes with ``maintenance`` and ``maintenance_allowed_hosts``
+   parameters. See :ref:`rolereference` for more information.
+
 Let's take care of this common configuration right away:
 
 1. Create playbook for the communications server: