Kevin kapfer created NIFI-7709:
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             Summary: Enable options for sftp connections (the "-o" parameter 
for sftp command line)
                 Key: NIFI-7709
                 URL: https://issues.apache.org/jira/browse/NIFI-7709
             Project: Apache NiFi
          Issue Type: New Feature
    Affects Versions: 1.11.4
         Environment: software platform
            Reporter: Kevin kapfer


When the sftp server requires a different algorithm (for example dss) than 
available from NiFi UI's server, you get
{code:java}
Unable to negotiate with {server ip} port 22: no matching host key type found. 
Their offer: ssh-dss{code}
for a response when invoking sftp from the command line.  To connect 
successfully, you must provide:
{noformat}
-oHostKeyAlgorithms=+ssh-dss{noformat}
to the command.  

The requested feature is to enable an option to specify the algorithm as an 
option, within the processors making sftp connections: GetSftp, PutSftp, 
FetchSftp, ListSftp.

A possible workaround is to add the missing algorithm to the server's ssh 
configuration



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