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From "Alejandro Abdelnur (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8043) KerberosAuthenticationFilter and friends have some problems
Date Sat, 11 Feb 2012 00:10:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205901#comment-13205901
] 

Alejandro Abdelnur commented on HADOOP-8043:
--------------------------------------------

Regarding 'That assumes ..', not really it assumes the user knows the hostname it must use.
Otherwise, on the server side we would have to have/load a TGT for every possible hostname
the server is known by (refer to my second paragraph in my prev comment)

Regarding 'if there is another way...', the same way JT/NN/DN/TT do for initializing UGI with
the keytab.
                
> KerberosAuthenticationFilter and friends have some problems
> -----------------------------------------------------------
>
>                 Key: HADOOP-8043
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8043
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 1.0.0
>            Reporter: Allen Wittenauer
>            Priority: Critical
>         Attachments: HADOOP-8043-branch-1.0.txt
>
>
> KerberosAuthenticationFilter and friends have three killer usability issues and bugs:
> 1. Documentation is misleading/wrong.
> 2. Shared secret stored in a world readable file.
> 3. Lacks support for _HOST macro

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