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From Bertrand Dechoux <decho...@gmail.com>
Subject Re: Securing cluster from access
Date Fri, 28 Sep 2012 09:34:05 GMT
What you are looking for is not related to Hadoop in the end. It is how to
restrict requests in a network.
'Firewall' is a broad term. iptables can allow you to do so quickly. You
drop everything and then accept only from a set of IPs.
You may receive answers using this mailing list but its purpose is not
really to discuss about firewall solutions and configurations.



On Fri, Sep 28, 2012 at 11:23 AM, Shin Chan <hadoop@gmx.com> wrote:

> 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

Bertrand Dechoux

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