Learn how to install Let’s Encrypt on a Vultr VPS running Ubuntu and Nginx, including DNS, firewall, Certbot, HTTPS, automatic-renewal checks, common errors and configuration rollback.
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Step-by-step instructions for configuring HTTPS on Apache with Certbot and Let’s Encrypt on Ubuntu 22.04 or 24.04, covering DNS, firewall, VirtualHost configuration, and automatic renewal checks.
This updated tutorial shows how to obtain a Let’s Encrypt certificate on Ubuntu with Certbot, configure it in OpenLiteSpeed, redirect HTTP to HTTPS, and verify that renewals reload the web server automatically.