• activate venv (source MY_VENV_PATH/bin/activate or workon MY_VENV)
• UFW firewall
  • sudo apt install ufw
  • sudo vim /etc/default/ufw , change IPV6=yes to IPV6=no
  • sudo ufw allow OpenSSH (the firewall will be blocking all connections accept SSH)
  • sudo ufw enable
  • sudo ufw status
  • sudo ufw allow 8000 (create an exception for port 8000)
• run python manage.py runserver 0.0.0.0:8000 to test it - in browser open http://SERVER_IP:8000/admin (there is no css yet, because of static files)
• test gunicorn gunicorn --bind 0.0.0.0:8000 MY_PROJECT.wsgi - open in browser http://MY_DOMAIN:8000/admin (no css)
• deactivate venv deactivate

Resources:

➡️https://medium.com/@_christopher/deploying-my-django-app-to-a-real-server-part-i-de78962e95ac

➡️https://www.digitalocean.com/community/tutorials/how-to-set-up-django-with-postgres-nginx-and-gunicorn-on-debian-9

➡️https://www.digitalocean.com/community/tutorials/initial-server-setup-with-debian-9

➡️https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829269