"SSH authentication or connection failure" in Linux/UNIX

[nikhilagr20]

Hi,

I have a Red Hat Linux Server in my environment. I have created a user with sudo privileges. When i am running discovery on it, it gives error "SSH authentication or connection failure". While I am able to login to this server via putty & able to run uname -a command successfully.

I have also enabled "debug_ssh = true" & "debug = true" in UNIX-Classify probe. Please find attached ssh.log file & screenshot of access given to user.

looking for a possitive reply.

Regards,
Nikhil Agarwal

[california123]

we are using Scheduled Import for importing file from mid server and pushing to target tables(we have Data Source)

we don't have any discovery inplace here....

more info check this link : Scheduled import error

[tim_broberg]

I would stick with mid.ssh.use_snc=true unless you have a reason not to. At the very least, it has a separate error message for connection and auth failures.

When use_snc is true, what error message do you get?

If it's an auth failure, check credentials. Does your version have the "test credential" feature? That would be a good place to start.

If it's a connection failure check that you can get to connect to port 22 on the target from the mid server.

If all else fails, you can set mid.ssh.debug=true, recreate the failure, and look in the agent log for a tsunami of detail on what's going on.

[california123]

Am getting

Warning : java.io.IOException: SSH authentication failed, Failed to connect TCP: Connection refused: ( scheduled import job:

can you please check give solution...

Thanks

[tim_broberg]

"TCP: Connection refused" - Sounds like a firewall issue on the server you're trying to connect to.

"scheduled import job" - Is this a probe over the mid server, or are you importing records into the instance with sftp / scp, or what?

[california123]

we are importing records to our instance for Mid server through SFTP

Can you please check this URL : Scheduled import error