https://www.digitalocean.com/community/tutorials/how-to-host-a-website-using-cloudflare-and-nginx-on-ubuntu-20-04 https://developers.cloudflare.com/ssl/origin-configuration/origin-ca https://github.com/K0p1-Git/cloudflare-ddns-updater/blob/main/cloudflare-template.sh
TODO: CronJob for DDNS script