要在Debian上更新Nginx SSL證書，請按照以下步驟操作：
sudo apt update
sudo apt install certbot python3-certbot-nginx
sudo apt update
sudo certbot --nginx -d yourdomain.com -d www.yourdomain.com
將yourdomain.com和www.yourdomain.com替換為您的實際域名。
Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/yourdomain.com/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/yourdomain.com/privkey.pem
Your certbot Apache configuration file was successfully updated.
sudo systemctl reload nginx
現在，您的Nginx SSL證書應該已經更新。請確保您的網站可以通過HTTPS正常訪問，并檢查證書是否已正確安裝。
