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https://issues.apache.org/jira/browse/AMBARI-19389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15806356#comment-15806356
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Yusaku Sako commented on AMBARI-19389:
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Reverted from trunk and branch-2.5 due to introduction of a rat check failure.
> Authentication negotiation HTTP response should be sent when Kerberos
> authentication is enabled
> -----------------------------------------------------------------------------------------------
>
> Key: AMBARI-19389
> URL: https://issues.apache.org/jira/browse/AMBARI-19389
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.5.0
> Reporter: Robert Levas
> Assignee: Robert Levas
> Labels: authentication, kerberos, security
> Fix For: 2.5.0
>
> Attachments: AMBARI-19389_branch-2.5_01.patch,
> AMBARI-19389_trunk_01.patch
>
>
> Authentication negotiation HTTP response should be automatically sent when
> needed when Kerberos authentication is enabled.
> The expected HTTP response during authentication failure when Kerberos
> authentication into Ambari is enabled is as follows:
> {noformat}
> HTTP/1.1 401 Authentication requested
> WWW-Authenticate: Negotiate
> {noformat}
> When Kerberos authentication into Ambari is not enabled the expected HTTP
> response for an authentication failure is:
> {noformat}
> HTTP/1.1 403 Missing authentication token
> {noformat}
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