Nginx
Nginx 
MultiSite
server {
listen 80;
root /var/www/html/it.trastero.org;
index index.html index.htm;
server_name it.trastero.org;
location / {
try_files $uri $uri/ =404;
}
}
server {
listen 80;
server_name it.trastero.org;
return 301 https://$host$request_uri;
}
server {
listen 443 ssl;
root /var/www/html/it.trastero.org;
server_name it.trastero.org;
ssl_certificate /etc/letsencrypt/live/it.trastero.org/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/it.trastero.org/privkey.pem;
include /etc/letsencrypt/options-ssl-nginx.conf;
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
location / {
try_files $uri $uri/ =404;
}
}
ln -s /etc/nginx/sites-available/it.trastero.org /etc/nginx/sites-enabled/
nginx -t
systemctl restart nginx
LetsEncrypt
apt-get install certbot python3-certbot-nginx -y
certbot certonly --agree-tos --email myemail@email.com -d it.trastero.org
systemctl restart nginx