How do i get SSH keys working with WordPress?

Posted February 28, 2014 2.5k views
I get this error when trying to connect them: I've followed the instructions on this post: but i can't get it working.

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3 answers
You should never use the root account to update Wordpress. Did you follow an article on setting up Wordpress?
Yes, i have also tried with the account 'ftpuser' same thing.
Which article have you followed?