Hey There. I've got a few clients I would like to give sftp access to but only for their specific WP install. I know how to create an SFTP user but I'm not sure how to set things up so they only get access to their ...

It's simple enough for me to log in as root and upload stuff to var/www/wordpress using sftp but when I then try to upload from within WordPress I'm not able to do it unless I reset ownership using chown to www-data. ...