diff --git a/flashmq/data/etc/acl_file b/flashmq/data/etc/acl_file
new file mode 100644
index 0000000..19ae98b
--- /dev/null
+++ b/flashmq/data/etc/acl_file
@@ -0,0 +1,5 @@
+user admin
+topic readwrite #
+ 
+user guest
+topic read test/#
diff --git a/flashmq/data/etc/flashmq.conf b/flashmq/data/etc/flashmq.conf
index c998b14..0592909 100644
--- a/flashmq/data/etc/flashmq.conf
+++ b/flashmq/data/etc/flashmq.conf
@@ -1,8 +1,14 @@
-# https://www.flashmq.org/documentation/config-file/
+#
+# - https://www.flashmq.org/documentation/config-file/
+# - https://mosquitto.org/man/mosquitto-conf-5.html
+#
 
 log_file    /var/log/flashmq/flashmq.log
 storage_dir /var/lib/flashmq
 
+#mosquitto_password_file /etc/flashmq/password_file
+#mosquitto_acl_file      /etc/flashmq/acl_file
+
 listen {
   protocol mqtt
   inet_protocol ip4
diff --git a/flashmq/data/etc/password_file b/flashmq/data/etc/password_file
new file mode 100644
index 0000000..d731ef2
--- /dev/null
+++ b/flashmq/data/etc/password_file
@@ -0,0 +1,5 @@
+# mosquitto_passwd -b password_file admin admin
+admin:$7$101$yQfAUAV+EF5tPGU2$RsXDGYVkMmrLLlaBywBKWfk6QN0yvoYtnJAGUNzWkSa25pj8e3d+zMJg5SL1Slv31ij3xO8qoS1DY+Lw/3JH4Q==
+
+# mosquitto_passwd -b password_file guest guest
+guest:$7$101$abZWwRyjhx7OmPLs$VZKf6T0t1UHFRM46bHqAyA8EmKkVvTKOG+knrLftFg7FQzopNMKtolsHueOziVRQT/F+ZndPNaxA3S5JwdjAZw==