nginx + certbot (letsencrypt) config example

default

#/etc/nginx/sites-enabled/default

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name _;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl;
    listen [::]:443 ssl ipv6only=on;
    server_name EXAMPLE.COM;

    root /var/www/html;
    index index.html index.htm index.nginx-debian.html;

    location / {
        try_files $uri $uri/ =404;
    }

    ssl_certificate /etc/letsencrypt/live/EXAMPLE.COM/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/EXAMPLE.COM/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
}