When I migrated my VPS (with Ubuntu) to an other host, I needed to setup Nginx again with Let's Encrypt but I always forget how to exactly do it. This blog post is aimed to describe in easy steps how to setup up Nginx with auto-renewing Let’s Encrypt SSL certificates.
Setting up Nginx
Setting up Nginx is super easy on Ubuntu. Run the following commands on your VPS.
sudo apt update sudo apt install nginx
If you have a firewall (ufw) enabled run the following command to enable HTTP (80) and HTTPS (443) to the firewall.
sudo ufw allow 'Nginx Full'
Certbot is also super easy. Run the following commands on your VPS.
sudo apt-get update sudo apt-get install software-properties-common sudo add-apt-repository universe sudo add-apt-repository ppa:certbot/certbot sudo apt-get update sudo apt-get install certbot python-certbot-nginx
Getting a SSL certificate from Let’s Encrypt
Now that we installed Certbot we can get a certificate from Let’s Encrypt by running the following command.
sudo certbot --nginx -d example.com -d www.example.com
Auto-renew your certificates
To auto-renew the certificates you have installed, add the following command to your crontab (open by running crontab -e from terminal)
0 * * * * sudo certbot renew