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https://issues.apache.org/jira/browse/HDFS-1150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12867736#action_12867736
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Jakob Homan commented on HDFS-1150:
-----------------------------------
bq. It appears the assumption is that the attacker won't be able to get root
privileges.
This is indeed an assumption we've had for all the security work. Should one
get root, they can get krb keytabs and at that point, game's over. This
approach doesn't fix that assumption, but is consistent with it.
> 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: 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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