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Set Up SSL on Ubuntu

Category: VPS Setup

Install SSL on an Ubuntu VPS with Certbot for secure websites—install with

apt update && apt install python3-certbot-nginx

then run

certbot --nginx

Enter your domain (e g example com) select \"Redirect HTTP to HTTPS\" and Certbot auto-configures Nginx with a Let’s Encrypt cert Open ports with

ufw allow 80 && ufw allow 443

and verify with

openssl s_client -connect example.com:443

—expect \"Certificate chain\" output Set auto-renewal with a cron job:

echo \"0 0 * * * root certbot renew --quiet\" >> /etc/crontab

On DigitalOcean this secures phpMyAdmin and FTP transfers maintaining uptime with zero-downtime renewals every 90 days