Production-Setup: -ip.bind turns off the localhost listener (no -ip.bind.localhost flag)

Production-Setup.md

@@ -32,9 +32,12 @@ ensure SeaweedFS uses the correct IP for cluster communication. Append
 If you wish to use a different IP address for user-facing services, then 
 set `-ip.bind=yy.yy.yy.yy` as well.
 
-Each service also listens on the same ports on `localhost`, so local
-tools can still reach it. To disable the extra localhost listener, add
-`-ip.bind.localhost=false`.
+Without `-ip.bind`, each service binds to the `-ip` address and also
+listens on the same ports on `localhost`, so local tools can still reach it.
+With `-ip.bind`, each port binds to exactly that address and there is no
+extra `localhost` listener; `-ip.bind=0.0.0.0` listens on all interfaces,
+loopback included. The Rust volume server never adds the `localhost`
+listener.
 
 ### For single node setup