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From: Harsh J <harsh@cloudera.com>
Date: Mon, 28 Nov 2011 16:09:19 +0530
Message-ID: 
 <CAOcnVr20kFdg1x0E+cJ-mx=Lw67OK-knq_ZzYsgq9OfZFoAB8Q@mail.gmail.com>
Subject: Re: Hadoop Security
To: hdfs-user@hadoop.apache.org
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Apache Hadoop 0.20.2 did not have security features in it. You'd need
0.20.203 at least, if not one of the current CDH3/0.20.205 (Both of
which also carry 0.20-append along with 0.20-security).

On Mon, Nov 28, 2011 at 3:56 PM, Stuti Awasthi <stutiawasthi@hcl.com> wrote=
:
> Thanks Alexander for this info.
> Currently I am using Apache Hadoop version 0.20.2 and not cloudera=E2=80=
=99s Hadoop version. I read that Apache Hadoop 0.20.205 supports Security. =
Any thoughts on that.
> Since currently I am using Apache Hadoop and quite familiar with it so I =
would like to use it some more before using CDH.
>
>
>
> From: Alexander C.H. Lorenz [mailto:wget.null@googlemail.com]
> Sent: Monday, November 28, 2011 3:25 PM
> To: hdfs-user@hadoop.apache.org
> Subject: Re: Hadoop Security
>
> HI,
>
> 1. yes:
> https://ccp.cloudera.com/display/CDHDOC/Configuring+Hadoop+Security+in+CD=
H3
> http://hortonworks.com/the-role-of-delegation-tokens-in-apache-hadoop-sec=
urity/
>
> 2. yes
> http://mapredit.blogspot.com/2011/10/secure-your-hadoop-cluster-part-i.ht=
ml
>
> 3. at the moment hdfs has no encryption engine, so far I know.
>
> best,
> =C2=A0Alex
>
> On Mon, Nov 28, 2011 at 10:44 AM, Stuti Awasthi <stutiawasthi@hcl.com> wr=
ote:
> Hi ,
>
> I wanted to know about the security in Hadoop. I have read few articles b=
ut not very sure about this so I wanted to discuss this topic in forum.
> As we know that Hadoop provide its security using Filesystem permissions =
like chown, chmod etc.
>
> 1. Is Kerberos or any security algo is implemented in the code so that we=
 can authenticate or authorize Hadoop.?
> 2. Can we use LDAP for authentication and Authorization in Hadoop
> 3. Is any kind of encryption is handled in hadoop at the time of storing =
the files in HDFS.
>
> Can anyone please provide me some good links to read on Hadoop Security
>
> Regards,
> Stuti Awasthi
>
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>
> --
> Alexander Lorenz
> http://mapredit.blogspot.com
>
> =EF=81=90=EF=82=A0Think of the environment: please don't print this email=
 unless you really need to.
>
>
>


--=20
Harsh J