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https://issues.apache.org/jira/browse/AMBARI-17787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksandr Kovalenko resolved AMBARI-17787.
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Resolution: Fixed
backported to branch-2.5
> LDAPS must be used to communicate with an Active Directory when Kerberos is
> being enabled (FE)
> ----------------------------------------------------------------------------------------------
>
> Key: AMBARI-17787
> URL: https://issues.apache.org/jira/browse/AMBARI-17787
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.0.0
> Reporter: Aleksandr Kovalenko
> Assignee: Aleksandr Kovalenko
> Priority: Critical
> Fix For: trunk
>
> Attachments: AMBARI-17787.patch
>
>
> LDAPS must be used to communicate with an Active Directory when Kerberos is
> being enabled.
> This should be verified on input by the frontend to ensure that the proper
> channel is open between Ambari and the Active Directory so Ambari can set and
> update passwords when managing accounts in the Active Directory.
> The LDAP URL, {{kerberos-env/ldap_url}} field must have the protocol set to
> {{ldaps}} rather than {{ldap}} (or anything else). Ideally the port is set
> correctly, be we cannot validate that since the LDAPS port can be changed.
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