letsencrypt nginx ubuntu 20.04 code example

Example 1: how to secure letsencrypt on ubuntu 20.04 with nginx

sudo apt install certbot python3-certbot-nginx

Example 2: install nginx on ubuntu 18.04

sudo apt update
sudo apt install nginx

Example 3: secure letsencrypt on ubuntu 20.04

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