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https://issues.apache.org/jira/browse/HADOOP-14578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16102034#comment-16102034
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Kihwal Lee commented on HADOOP-14578:
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+1 the patch looks good.
> Bind IPC connections to kerberos UPN host for proxy users
> ---------------------------------------------------------
>
> Key: HADOOP-14578
> URL: https://issues.apache.org/jira/browse/HADOOP-14578
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.0.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HADOOP-14578.branch-2.8.patch, HADOOP-14578.patch,
> HADOOP-14578.patch
>
>
> The IPC client will only bind to a kerberos UPN host for the effective user.
> For proxy users, it does not bind to the authenticating real user's UPN host.
> This is inconsistent and prevents strict host checking of connection.
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