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Date: Wed, 25 Jun 2014 17:20:26 +0000 (UTC)
From: "Benoy Antony (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <JIRA.12711886.1399011222997.47633.1403716826781@arcas>
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Subject: [jira] [Updated] (HADOOP-10565) Support IP ranges (CIDR) in
  proxyuser.hosts
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     [ https://issues.apache.org/jira/browse/HADOOP-10565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benoy Antony updated HADOOP-10565:
----------------------------------

    Attachment: HADOOP-10565.patch

> Support IP ranges (CIDR) in  proxyuser.hosts
> --------------------------------------------
>
>                 Key: HADOOP-10565
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10565
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: security
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>         Attachments: HADOOP-10565.patch, HADOOP-10565.patch, HADOOP-10565.patch
>
>
> In some use cases, there will be many hosts from which the user can impersonate. 
> This requires specifying many ips  in the XML configuration. 
> It is cumbersome to specify and maintain long list of ips in proxyuser.hosts
> The problem can be solved if we enable proxyuser.hosts to accept ip ranges in CIDR format.
> In addition, the current ip authorization involve a liner scan of the ips and an attempt to do InetAddress.getByName()  for each ip/host. 
> It may be beneficial to group this functionality of ip authorization by looking up  "ip addresses/host names/ip-ranges" into a separate class. This could be reused in other usecases which require similar functionality


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