Translates human-readable domain names as e.g. given in the [[URL - Uniform Resource Locator|URL]] into an [[IP Address, IPv4, IPv6, ULA and Subnet Mask|IP address]]. --- #### Dynamic DNS Many home connections have a dynamic [[IP Address, IPv4, IPv6, ULA and Subnet Mask|IP address]], meaning the public IP can change (ISP assigns). DDNS assigns you a fixed domain name that always points to your current public IP and updates this pointer automatically. - You sign up with a **DDNS provider** (like No-IP, DynDNS, DuckDNS, etc.). - You pick a hostname, e.g., `mycamera.ddns.net`. - You configure your **router or a local device** to: - Check your current public IP - Automatically notify the DDNS provider when it changes - The provider updates your DNS record so `mycamera.ddns.net` always points to your **latest IP**. For an example based on Duck DNS, refer to [[DDNS via DuckDNS Setup]].