apt update
apt upgrade
export NU=USER
adduser $NU
usermod -aG sudo $NU

• sudo apt install emacs-nox
• if root has correct public cert:
  • mkdir -p ~/.ssh && sudo cp /root/.ssh/authorized_keys ~/.ssh/. && sudo chown $USER:$USER ~/.ssh/authorized_keys
• otherwise:
  • mkdir .ssh && chdir .ssh && emacs -nw authorized_keys
  • add public rsa
• logout, login to test that cert is working
• sudo emacs -nw /etc/ssh/sshd_conf and change PasswordAuthentication from yes to no
• sudo systemctl restart sshd.service
• copy .emacs and .emacs/d from somewhere else…

To set up with AWS SES follow these directions but use port 2587 instead of 587 on Linode as 587 is blocked

• postfix should be set up with no configuration. When you do this, there are instructions given at the end to copy some sort of sample configuration.
• to reconfigure: sudo dpkg-reconfigure postfix
• to reload the settings: sudo postfix stop; sudo postfix start; sudo postfix reload
• when testing tail -f /var/log/mail.log is your friend