diff --git a/Production-Setup.md b/Production-Setup.md
index e8d295c..6a099f2 100644
--- a/Production-Setup.md
+++ b/Production-Setup.md
@@ -29,6 +29,9 @@ If you have multi-homed servers (many IP addresses and interfaces), you need
 to ensure SeaweedFS uses the correct IP, for cluster communication. Append
 `-ip=xx.xx.xx.xx` to specify the appropriate address. 
 
+If you wish to use a different IP address for user-facing services, then 
+set `-publicIp=yy.yy.yy.yy` as well.
+
 ### For single node setup
 
 You can just use `weed server -filer -s3 -ip=xx.xx.xx.xx`, to have one master,