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https://issues.apache.org/jira/browse/NIFI-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16933932#comment-16933932
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Joseph Witt commented on NIFI-5816:
-----------------------------------
[ERROR] Failures:
[ERROR] TestSFTPTransferWithSSHTestServer.testGetListingSimple:154
expected:<rw-r[-]-r--> but was:<rw-r[w]-r-->
[INFO]
there was a range of other errors seen for that test class on Linux as well.
all of it seems related to different behaviors we'd see on different systems.
the test class looks valuable but as an integration test.
> SFTP cannot connect due to JSch limitations
> -------------------------------------------
>
> Key: NIFI-5816
> URL: https://issues.apache.org/jira/browse/NIFI-5816
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: 1.8.0
> Reporter: Laurenceau Julien
> Assignee: Bryan Bende
> Priority: Minor
> Fix For: 1.10.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Hi,
> The JSch library used for SFTP does not support HostKeyAlgorithms=ed25519
> whereas it is the current standard. This make SFTP / SSH unusable when
> dealing with recent openssh config.
> On dbeaver project they switched to sshj.
> [https://github.com/dbeaver/dbeaver/issues/2202]
> [https://community.hortonworks.com/answers/226377/view.html]
>
> https://stackoverflow.com/questions/2003419/com-jcraft-jsch-jschexception-unknownhostkey
> One more argument against JSch is that it does not support rsa key length
> other than default (2048).
> ssh-keygen -o -t rsa -b 4096 -f id_rsa -> does not work with nifi
> ssh-keygen -t rsa -f id_rsa -> works with nifi
> Thanks and regards
> JL
> PS : sorry but I do not know nifi deep enough to fill all fields.
>
>
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