diff --git a/server_config.txt b/server_config.txt
index fe909ca..2eb0491 100755
--- a/server_config.txt
+++ b/server_config.txt
@@ -31,4 +31,7 @@ status /var/log/openvpn-status.log 20
 status-version 3
 syslog
 verb 3
+#DuplicateCNs allow access control on a less-granular, per user basis.
+#Remove # if you will manage access by user instead of device. 
+#duplicate-cn
 # Generated for use by PiVPN.io