diff --git a/Dockerfile b/Dockerfile
index 0ac5599..1f5389c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,11 @@
 FROM debian
 
-ENV NAME myups
+ENV NAME ups
 ENV DRIVER usbhid-ups
 ENV PORT auto
 ENV POLLFREQ 5
 ENV DESC UPS
+ENV USERSSTRING #
 
 RUN apt-get update 
 RUN apt-get -y install nut-server
diff --git a/README.md b/README.md
index d574309..e01d5dd 100644
--- a/README.md
+++ b/README.md
@@ -9,15 +9,22 @@ Image available at https://hub.docker.com/r/nardo86/nut-server
 
 Just run the image publishing the port and pointing to the ups device path. Use lsusb to find the current Bus and Device
 
-docker run -d -p 3493:3493 --name=Nut --restart unless-stopped --device=/dev/bus/usb/001/005 nardo86/nut-server 
+`docker run -d -p 3493:3493 --name=Nut --restart unless-stopped --device=/dev/bus/usb/001/005 nardo86/nut-server`
+
+All the settings for the UPS are customizable like the name, driver, Port, Polling frequency and the description using the enviroment variables.
+
+It is also possibile to insert an user, for example it's possibile to make the service compatible with Synology NAS changing the USERSSTRING like
+
+`-e USERSSTRING='[monuser] \n  password = secret \n  upsmon slave'`
+
 
 **EXTRA OPTIONS**
 
 Environment variable used for the configuration
 
-**NAME**		a simple name for your ups 	(default: myups)
+**NAME**		a simple name for your ups 		(default: ups)
 
-**DRIVER**		the driver to use*			(default: usbhid-ups)
+**DRIVER**		the driver to use*				(default: usbhid-ups)
 
 **PORT**		device port 					(default: auto)
 
@@ -25,4 +32,6 @@ Environment variable used for the configuration
 
 **DESC**		full description for your ups  	(default: UPS)
 
+**USERSSTRING**	single line users configuration	(default: #)
+
 *see https://networkupstools.org/stable-hcl.html for compatibility list
\ No newline at end of file
diff --git a/entrypoint.sh b/entrypoint.sh
index 3f746d1..9c3f65e 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -3,6 +3,7 @@
 sed -i 's/MODE=none/MODE=netserver/g' /etc/nut/nut.conf
 echo "LISTEN 0.0.0.0 3493" >> /etc/nut/upsd.conf
 echo -e "[$NAME] \n  driver = $DRIVER \n  port = $PORT \n  pollfreq = $POLLFREQ \n  desc = $DESC" >> /etc/nut/ups.conf
+echo -e "$USERSSTRING" >> /etc/nut/upsd.users
 
 chgrp nut /etc/nut/*
 chgrp nut /dev/bus/usb/*/*