I installed openssh (server and client) and tried setting up public key authentication to login into the N900 from my Ubuntu machine, but it's not working.
I generated the keys in Ubuntu with ssh-keygen, copied id_rsa.pub to /home/user/.ssh/authorized_keys in the N900 and it still asks for password when I try
ssh user@N900_ip from the Ubuntu machine.
I made sure the folder .ssh is chmod 700 in the N900 and the file /home/user/.ssh/authorized_keys is chmod 600.
(Public authentication works using the N900 as client to login into Ubuntu.)
I also cannot find the ssh logs in the N900 itself.
I thought it would be /var/log/auth.log, as in Ubuntu, but it's not.
Any suggestions?

I apologize it this has been discussed in some other thread.