Install certbot for Ubuntu 18.04
sudo add-apt-repository ppa:certbot/certbot
sudo apt install python-certbot-nginx
Install certbot for Ubuntu 20.04
sudo apt install certbot python3-certbot-nginx
Generate SSL Certificate
sudo certbot --nginx -d cemkarakurt.com -d www.cemkarakurt.com
Check Auto Renew Service
sudo systemctl status certbot.timer
Check Auto Renew
sudo certbot renew --dry-run
Renew Certificate
sudo certbot renew
List Installed Certificates
sudo certbot certificates
Remove Certificate
sudo certbot delete