[jira] [Commented] (HADOOP-10565) Support IP ranges (CIDR) in proxyuser.hosts

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-10565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14014893#comment-14014893 ] 

Hadoop QA commented on HADOOP-10565:
------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12647804/HADOOP-10565.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/3990//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/3990//console

This message is automatically generated.

> 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
>
>
> 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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