How do I configure Cloudflare DNS to point to my Ubuntu server?

To point your domain to your Ubuntu server using Cloudflare, first ensure your domain's nameservers are set to Cloudflare's. Then, within your Cloudflare dashboard, navigate to the DNS settings. Add or update an 'A' record for your root domain (e.g., `yourdomain.com`) and any subdomains (e.g., `www.yourdomain.com`). The 'Name' field should be your domain or subdomain, and the 'IPv4 address' should be your Ubuntu server's public IP address. Crucially, make sure the proxy status (the orange cloud icon) is enabled for these records so that traffic flows through Cloudflare.