nginx letsencrypt This site can’t provide a secure connection code example

Example 1: lets encrypt nginx

#Once you have installed CertBot and Lets Encyrypt, 
#and you have set up your server blocks, 
#you will be able to run the below script in your terminal
sudo certbot --nginx -d example.com -d www.example.com

Example 2: nginx letsencrypt

sudo certbot renew
sudo service nginx restart