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From "Jakob Homan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1150) Verify datanodes' identities to clients in secure clusters
Date Sat, 31 Jul 2010 02:16:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12894238#action_12894238
] 

Jakob Homan commented on HDFS-1150:
-----------------------------------

bq. The point is that we already "support" the SELinux way
If your "support" for security comes with quotation marks, you've got a problem.  

bq. Think of it like i.already.secured.my.datanode.port.with.some.external.mechanism
This is a more reasonable way of arguing your request.  Essentially it's the beginning of
a pluggable system where the verification is Ops' word that they've taken care of this security
hole. My concern remains that this provides no way for a running cluster to realize it's been
misconfigured, although I've been thinking we need a security info page on the NN/JT (along
with HADOOP-6823 and HADOOP-6822) and this could be displayed there (although the danger for
non-updated, erroneous configs scattered around the cluster still remains).  Administrators
would need to affirmatively decline this type of protection, perhaps with a value to the key
of "No, thanks."

> Verify datanodes' identities to clients in secure clusters
> ----------------------------------------------------------
>
>                 Key: HDFS-1150
>                 URL: https://issues.apache.org/jira/browse/HDFS-1150
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: data-node
>    Affects Versions: 0.22.0
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>         Attachments: commons-daemon-1.0.2-src.tar.gz, HDFS-1150-BF-Y20-LOG-DIRS-2.patch,
HDFS-1150-BF-Y20-LOG-DIRS.patch, HDFS-1150-BF1-Y20.patch, hdfs-1150-bugfix-1.1.patch, hdfs-1150-bugfix-1.2.patch,
hdfs-1150-bugfix-1.patch, HDFS-1150-trunk.patch, HDFS-1150-Y20-BetterJsvcHandling.patch, HDFS-1150-y20.build-script.patch,
HDFS-1150-Y20S-ready-5.patch, HDFS-1150-Y20S-ready-6.patch, HDFS-1150-Y20S-ready-7.patch,
HDFS-1150-Y20S-ready-8.patch, HDFS-1150-Y20S-Rough-2.patch, HDFS-1150-Y20S-Rough-3.patch,
HDFS-1150-Y20S-Rough-4.patch, HDFS-1150-Y20S-Rough.txt
>
>
> Currently we use block access tokens to allow datanodes to verify clients' identities,
however we don't have a way for clients to verify the authenticity of the datanodes themselves.

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