diff --git a/templates/my.cnf b/templates/my.cnf
index bf6a605..921c91a 100644
--- a/templates/my.cnf
+++ b/templates/my.cnf
@@ -1,6 +1,10 @@
 # Juju managed file - don't change as charm will overwrite your changed!
 [mysqld]
 
+# Never resolve IP's to hostnames; it adds overhead
+# and is not really reliable for use with ACL's.
+skip-name-resolve
+
 {% if bind_address %}
 bind-address = {{ bind_address }}
 {% endif %}
diff --git a/templates/mysqld.cnf b/templates/mysqld.cnf
index b75a5f4..114133d 100644
--- a/templates/mysqld.cnf
+++ b/templates/mysqld.cnf
@@ -12,6 +12,10 @@ tmpdir          = /tmp
 lc-messages-dir = /usr/share/mysql
 skip-external-locking
 
+# Never resolve IP's to hostnames; it adds overhead
+# and is not really reliable for use with ACL's.
+skip-name-resolve
+
 #
 # * Networking
 #