Originally Posted by helihyv

You were not supposed to create a folder.
The command:

Code:

 cat ~/.ssh/id_urpo.pub | ssh user@computer 'cat >> ~./ssh/authorized_keys2'

does not move the file into a folder authorized_keys2, it adds the public key held in the file id_urpo.pub to the end of the file authorized_keys2 (if it does not exist, cat creates it first) .

If you created a folder authorized_keys2, you should remove (or rename if you want to keep the contents) it and try again with the above command.

If you created the folder authorized_keys yourself too, its best to rename that too and try again with the command

Code:

 cat ~/.ssh/id_urpo.pub | ssh user@computer 'cat >> ~./ssh/authorized_keys'

(SSH should just need the public key in either authorized_keys or authorized_keys2, but I am not sure which one OS X wants.)

My first guess in the post #8 was based on the far too hasty assumption that the folder authorized_keys was preconfigured for you by the OS X, and thus should be there. Sorry for the mess...