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https://issues.apache.org/jira/browse/HDFS-11816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16008522#comment-16008522
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Robert Kanter commented on HDFS-11816:
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+1 pending comments on HADOOP-14417.
> Update ciphers list for HttpFS
> ------------------------------
>
> Key: HDFS-11816
> URL: https://issues.apache.org/jira/browse/HDFS-11816
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: httpfs, security
> Affects Versions: 2.9.0
> Reporter: John Zhuge
> Assignee: John Zhuge
> Priority: Minor
> Attachments: HDFS-11816.branch-2.001.patch
>
>
> In Oracle Linux 6.8 configurations, the curl command cannot connect to
> certain CDH services that run on Apache Tomcat when the cluster has been
> configured for TLS/SSL. Specifically, HttpFS, KMS, Oozie, and Solr services
> reject connection attempts because the default cipher configuration uses weak
> temporary server keys (based on Diffie-Hellman key exchange protocol).
> https://www.cloudera.com/documentation/enterprise/release-notes/topics/cdh_rn_os_ki.html#tls_weak_ciphers_rejected_by_oracle_linux_6
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