Dynamic DNS
Dynamic DNS (DDNS) is a service that automatically updates DNS records in real-time when an IP address changes, typically for devices with dynamic IP addresses assigned by ISPs. It maps a domain name to a changing IP address, enabling reliable access to home networks, servers, or IoT devices from the internet. This is essential for hosting services like web servers, remote access, or gaming servers on networks without static IPs.
Developers should use Dynamic DNS when deploying applications or services on networks with dynamic IP addresses, such as residential internet connections, to maintain consistent accessibility. It's crucial for scenarios like remote development server access, home automation systems, or small-scale web hosting where static IPs are unavailable or costly. Learning DDNS helps in configuring reliable endpoints for testing, monitoring, or personal projects without relying on expensive infrastructure.