• install openssh
• setup server
  • /etc/ssh/sshd_config.d/20-force_publickey_auth.conf
    • PasswordAuthentication no
    • AuthenticationMethods publickey
  • add clients to authorized_keys
  • chmod 400 ~/.ssh/authorized_keys
  • generate server key
  • check config with sshd -t
    • no output is good
  • sudo systemctl enable sshd --now