This is a brief introduction to DDNS and its use.

Applies to: Reolink cameras which can support DDNS 

Dynamic DNS, also known as DDNS, solves the problem of changing residential IP addresses by associating your address with a consistent domain name without the need to buy a pricey static IP.

If you want to access your Reolink cameras and NVRs remotely through the domain name, you need to use DDNS. Refer to: How to Set up DDNS.