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Date: Tue, 30 May 2017 23:32:05 +0000 (UTC)
From: "ASF GitHub Bot (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (ZOOKEEPER-2779) Add option to not set ACL for
 reconfig node
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archived-at: Tue, 30 May 2017 23:32:10 -0000


    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16030360#comment-16030360 ] 

ASF GitHub Bot commented on ZOOKEEPER-2779:
-------------------------------------------

Github user hanm commented on a diff in the pull request:

    https://github.com/apache/zookeeper/pull/249#discussion_r119240556
  
    --- Diff: src/docs/src/documentation/content/xdocs/zookeeperReconfig.xml ---
    @@ -338,7 +338,10 @@ server.3=125.23.63.25:2782:2785:participant</programlisting>
             environment (i.e. behind company firewall). For those users who want to use reconfiguration feature but
             don't want the overhead of configuring an explicit list of authorized user for reconfig access checks,
             they can set <ulink url="zookeeperAdmin.html#sc_authOptions">"skipACL"</ulink> to "yes" which will
    -        skip ACL check and allow any user to reconfigure cluster.
    +        skip ACL check and allow any user to reconfigure cluster. A more secure mechanism is also provided.
    --- End diff --
    
    Please remove the "A more secure mechanism is also provided." This approach is no safer than the offline superuser approach per discussion in JIRA. 


> Add option to not set ACL for reconfig node
> -------------------------------------------
>
>                 Key: ZOOKEEPER-2779
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2779
>             Project: ZooKeeper
>          Issue Type: Improvement
>          Components: server
>    Affects Versions: 3.5.3
>            Reporter: Jordan Zimmerman
>            Assignee: Jordan Zimmerman
>             Fix For: 3.5.4, 3.6.0
>
>
> ZOOKEEPER-2014 changed the behavior of the /zookeeper/config node by setting the ACL to {{ZooDefs.Ids.READ_ACL_UNSAFE}}. This change makes it very cumbersome to use the reconfig APIs. It also, perversely, makes security worse as the entire ZooKeeper instance must be opened to "super" user while enabled reconfig (per {{ReconfigExceptionTest.java}}). Provide a mechanism for savvy users to disable this ACL so that an application-specific custom ACL can be set.


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