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https://issues.apache.org/jira/browse/HADOOP-10307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13885768#comment-13885768
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Robert Kanter commented on HADOOP-10307:
----------------------------------------

This sounds similar to the {{AltKerberosAuthenticationHandler}} added in 
HADOOP-9054.  The {{AltKerberosAuthenticationHandler}} uses Kerberos or _some 
other AuthenticationHandler_ based on the user agent.  For example, you can 
have all CLI access use Kerberos (by falling back to the 
{{KerberosAuthenticationHandler}} and all browsers use some custom 
authentication (by subclassing {{AltKerberosAuthenticationHandler}} to 
implement the custom authentication handler).  You could have a chain of these 
authentication handlers to do more than two.  Would this sufficient for your 
needs?  

> Support multiple Authentication mechanisms for HTTP
> ---------------------------------------------------
>
>                 Key: HADOOP-10307
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10307
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 2.2.0
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>         Attachments: HADOOP-10307.patch
>
>
> Currently it is possible to specify a custom Authentication Handler  for HTTP 
> authentication.  
> We have a requirement to support multiple mechanisms  to authenticate HTTP 
> access.



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