Hello, We have 15 node cluster and right now we dont have Kerberos implemented.
But on urgent basis we want to secure the cluster. Right now anyone who know IP of Namenode can just download the Hadoop jar , configure xml files and say hadoop fs -ls / And he can see the data. How to stop this ? We have Hadoop 2.0 verison Do we have any configuration settings which we can change so that only set of users or set of IPs should be able to see the HDFS. We dont have firewall implemented yet outside cluster so that is not an option. Thanks in advance for your help
