Of course! How foolish of me... all we needed was debugging enabled ;-)

You're remote SSH server is *probably* not accepting cleartext password tunneling. In other words, its /etc/ssh/sshd_config is saying something like: 

PasswordAuthentication no

[download]
And that's what's causing (my) error when trying to use a username and password for authentication. When I changed it to yes, and restarted the remote SSH server, the scripts works, because debugging now said: 
wolf: Sending request for user-authentication service.
wolf: Service accepted: ssh-userauth.
wolf: Trying empty user-authentication request.
wolf: Authentication methods that can continue: publickey,password,keyboard-interactive.
Where it used to be (with PasswordAuthentication no): 
wolf: Sending request for user-authentication service.
wolf: Service accepted: ssh-userauth.
wolf: Trying empty user-authentication request.
wolf: Authentication methods that can continue: publickey,keyboard-interactive.
So the above debugging says that the remote SSH server only accepts ssh keys or a keyboard interactive password..

My advise is: create an ssh-key for the user that runs your script, and add the public key of that user to the authorized_keys file of your remote user. This is more secure than enabling clear text password tunneling ;-)

HTH

to ask a question is a moment of shame
to remain ignorant is a lifelong shame

In reply to Re^7: sftp->do_write howto? by insaniac
in thread sftp->do_write howto? by chrism01

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