DNS records map domain names to IP addresses. They are how you tell the internet where to find your services: an A record is the most common type, pointing a domain name to an IPv4 address.
1. Log into your registrar account 2. Find DNS management or DNS settings 3. Look for "Add Record" or "Add DNS Record" 4. Select record type: A 5. Enter hostname: * `@` for root domain (example.com) * `www` for subdomain (www.example.com) * Other subdomains as needed 6. Enter value: Your public IP address 7. Set TTL: 3600 (1 hour) or 300 (5 minutes) for faster updates 8. Save the record