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https://issues.apache.org/jira/browse/NIFI-16225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18105774#comment-18105774
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David Handermann commented on NIFI-16225:
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Thanks for following up and highlighting this regression [~seowalex].
Taking a closer look at the Netty-based proxy support implementation, it looks
like the address resolution issue is present with SOCKS proxy servers as
described. I will put together a pull request to correct the behavior.
> Regression of "Proxified SFTP processors resolve hostnames and pass IP
> instead of FQDN in HTTP headers" (NIFI-14068)
> --------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-16225
> URL: https://issues.apache.org/jira/browse/NIFI-16225
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Seow Alex
> Assignee: David Handermann
> Priority: Minor
>
> In https://issues.apache.org/jira/browse/NIFI-14068, domain name handling for
> SFTP proxy access was fixed by sending a DNS address instead of a resolved IP
> address to SOCKS proxies.
> However, this fix seems to have regressed with the switch to Apache MINA SSHD
> in https://issues.apache.org/jira/browse/NIFI-14720, as the same code path is
> no longer used.
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