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https://issues.apache.org/jira/browse/HDFS-11418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Zhuge updated HDFS-11418:
------------------------------
    Attachment: HDFS-11418.branch-2.002.patch

Patch branch-2.002
- Use file catalina.properties to transfer HttpFS properties instead of env 
CATALINA_OPTS
- Create catalina-default.properties to store default Tomcat properties
- Update doc

TODO
- Discuss Allen's idea of strong security by default

Follow up in a new JIRA
- Refactor HttpFS scripts based on catalina.properties technique

Testing done
- Run https://github.com/jzhuge/hadoop-bats-tests/blob/master/httpfs.bats in 
insecure and SSL single node setup
- Run sslscan to verify ciphers in the following test cases:
    -- No HTTPFS_SSL_CIPHERS, to allow HttpFS default ciphers
    -- HTTPFS_SSL_CIPHERS=“TLS_RSA_WITH_AES_128_CBC_SHA256“, to allow this 
cipher only

> HttpFS should support old SSL clients
> -------------------------------------
>
>                 Key: HDFS-11418
>                 URL: https://issues.apache.org/jira/browse/HDFS-11418
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: httpfs
>    Affects Versions: 2.8.0, 2.7.4, 2.6.6
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>            Priority: Minor
>         Attachments: HDFS-11418.branch-2.001.patch, 
> HDFS-11418.branch-2.002.patch
>
>
> HADOOP-13812 upgraded Tomcat to 6.0.48 which filters weak ciphers. Old SSL 
> clients such as curl stop working. The symptom is {{NSS error -12286}} when 
> running {{curl -v}}.
> Instead of forcing the SSL clients to upgrade, we can configure Tomcat to 
> explicitly allow enough weak ciphers so that old SSL clients can work.



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