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https://issues.apache.org/jira/browse/NIFI-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16099363#comment-16099363
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ASF GitHub Bot commented on NIFI-2528:
--------------------------------------

Github user alopresto commented on the issue:

    https://github.com/apache/nifi/pull/1986
  
    I am trying to walk the line between "make everything configurable" and 
"sometimes people who don't understand this configure it". If you have a client 
that only supports `SSLv3`, it won't work with `ListenHTTP` period. 
    
    * Current situation: the connection will fail, and the error presented to 
the client will be some form of `INVALID PROTOCOL VERSION`. No error in NiFi. 
    * Proposed error on config: New flows can't start, as the processor is 
invalid. Existing flows which use `SSLv3` will stop working, and the error 
simply says "SSLv3 isn't valid". No open port for client to connect to, so 
that's the error on that end.
    * Proposed restricted list implementation: *Can't get to invalid state on 
new processor config.* Existing flows which use `SSLv3` will stop working, and 
the error says "SSLv3 isn't valid -- pick TLSv1.2". No open port for client to 
connect to, so that's the error on that end, but the NiFi DFM at least knows a 
"valid" option to report back to the external client admin/operator. 



> Update ListenHTTP to honor SSLContextService Protocols
> ------------------------------------------------------
>
>                 Key: NIFI-2528
>                 URL: https://issues.apache.org/jira/browse/NIFI-2528
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.0.0, 0.8.0, 0.7.1
>            Reporter: Joe Skora
>            Assignee: Michael Hogue
>
> Update ListenHTTP to honor SSLContextService Protocols as [NIFI-1688] did for 
> PostHTTP.



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