Dynamic DNS (DDNS or Dyn DNS) is a method of automatically updating a name server in the Domain Name System (DNS), often in real time, with the active DDNS configuration of its configured hostnames, addresses or other information.The term is used to describe two different concepts.

These may be built with a different set of defaults than the standard BIND distribution and some of them add a version number of their own that does not map exactly to the BIND version.

For configuration assistance, and overall understanding of how to use BIND, the BIND Administrative Reference Manual (ARM) is the primary tool.

Some of them, such as the popular DIG tool, are not specific to BIND and can be used with any DNS server.

BIND is distributed as source code, with executables provided for Windows.

They specify the process by which one computer can find another computer on the basis of its name.

The BIND software distribution contains all of the software necessary for asking and answering name service questions.

Dynamic DNS allows you to direct your domain or a subdomain to a resource that is behind a gateway that has a dynamically assigned IP address.

To use dynamic DNS with Google Domains you set up a Dynamic DNS synthetic record.

You can provide DNS services on the Internet by installing this software on a server and giving it information about your domain names.