# remote linux computer: 192.168.0.62 / example user: mybackup # fist create user on remote machine: (don't forget password). sudo adduser mybackup # then, on local machine, generate public rsa key of our user. # using local user (to be conected to remote) at user's home do: ssh-keygen -t rsa # to answer each question just press [ENTER]. # then from local folder user's home (/home/mybackup): # 1) Create .ssh directory on remote machine: ssh email@example.com mkdir -p .ssh # 2) Copy generated key: cat .ssh/id_rsa.pub | ssh firstname.lastname@example.org 'cat >> .ssh/authorized_keys' # 3) Change permissions: ssh email@example.com "chmod 700 .ssh; chmod 640 .ssh/authorized_keys" # 4) Test your login: (it must work without password): ssh firstname.lastname@example.org
Login without password. It is very useful for backup issues.