Free HTTPS with LetsEncrypt and Certbot Ubuntu 20.04

Create valid HTTPS connections to your websites configured with Nginx

• https://certbot.eff.org/lets-encrypt/ubuntufocal-nginx

Install Certbot and Nginx extension

sudo apt install certbot python3-certbot-nginx

Setup LetsEncrypt

sudo certbot --nginx -d example.com -d www.example.com

Test renew subscription

sudo certbot renew --dry-run

Check auto renew timer

sudo systemctl status certbot.timer

Add Subdomains configured in your nginx

sudo certbot --nginx -d example.com -d www.example.com -d sub1.example.com -d sub2.example.com --expand