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From "Jonathan Natkins (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8121) Active Directory Group Mapping Service
Date Fri, 09 Mar 2012 21:02:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226454#comment-13226454
] 

Jonathan Natkins commented on HADOOP-8121:
------------------------------------------

There are two types of searches that get executed: 1) a group search, in which we're specifying
the distinguished name that we're searching for, so we should only ever get back one result,
or 2) a user search, in which case the filter should be something along the lines of (sAMAccountName={0})
or (uid={0}), which should only return one result, if configured correctly.

I'll acknowledge that this doesn't prevent an admin from misconfiguring the user search filter
to execute a query that brings back a large result set, e.g. (objectclass=user), but if it
does throw an exception, it will caught and logged appropriately.
                
> Active Directory Group Mapping Service
> --------------------------------------
>
>                 Key: HADOOP-8121
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8121
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: security
>            Reporter: Jonathan Natkins
>            Assignee: Jonathan Natkins
>         Attachments: HADOOP-8121.patch, HADOOP-8121.patch, HADOOP-8121.patch, HADOOP-8121.patch,
HADOOP-8121.patch, HADOOP-8121.patch, HADOOP-8121.patch, HADOOP-8121.patch
>
>
> Planning on building a group mapping service that will go and talk directly to an Active
Directory setup to get group memberships

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