How do I enable simple auth - SIMPLE authentication is not enabled.  Available:[TOKEN]

```
$ hadoop fs -fs 192.168.99.100:32865 -ls
16/02/07 16:57:09 WARN fs.FileSystem: "192.168.99.100:32865" is a deprecated filesystem name. Use "hdfs://192.168.99.100:32865/" instead.
16/02/07 16:57:10 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
ls: SIMPLE authentication is not enabled.  Available:[TOKEN]
```
