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From Larry McCay <lmc...@hortonworks.com>
Subject Re: Reg HttpFS
Date Fri, 16 May 2014 16:53:23 GMT
Hi Manoj -

This is often done by going through a gateway or intermediary that is
configured as a trusted proxy to the cluster. That is, the intermediary can
authenticate to the target services as itself with kerberos and dispatch
the REST request with a doas parameter that indicates the identity of the
user to issue the request on behalf of.

This is precisely what Apache Knox does for such deployments. You may want
to take a look there.

Currently, out of the box, Knox has an authentication provider to
authentication HTTP Basic credentials against an LDAP server.
There is an ApacheDS LDAP server as part of the Knox distribution as well -
for quickly testing your deployment.

Feel free to engage the Knox user/dev lists.



On Thu, May 15, 2014 at 4:44 AM, Manoj Babu <manoj444@gmail.com> wrote:

> Hi Alejandro,
> Thanks for your response. Right now i am following this approach from
> edge-node where kerberos is configured. I am not able to understand the hit
> provided can you provide a sample to trigger request from other external
> machine to authenticate where kerberos not configured in client where
> request is to be triggered?
> $ kinit
> After entering pwd
> $ curl --negotiate -u : -b ~/cookiejar.txt -c ~/cookiejar.txt
> http://localhost:14000/webhdfs/v1/?op=liststatus
> Cheers!
> Manoj.
> On Fri, May 9, 2014 at 12:13 PM, Alejandro Abdelnur <tucu@cloudera.com>wrote:
>> Manoj,
>> Please look at
>> http://hadoop.apache.org/docs/r2.4.0/hadoop-hdfs-httpfs/httpfs-default.htmllook at
the 'httpfs.authentication.*' properties.
>> Thanks.
>> On Sun, May 4, 2014 at 5:27 AM, Manoj Babu <manoj444@gmail.com> wrote:
>>> Hi,
>>> How to accesss files in hdfs using HttpFS that is protected by kerberos?
>>> Kerberos authentication works only where is is configured ex: edge node.
>>> If i am triggering request from other system then how do i authenticate?
>>> Kindly advise.
>>> Cheers!
>>> Manoj.
>> --
>> Alejandro

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