General API Information

The Rackspace Cloud DNS API is implemented using a RESTful web service interface. Like other Rackspace Cloud services, this service shares a common token-based authentication system that allows seamless access between products and services.

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All requests to authenticate and operate the service are performed using HTTPS on TCP port 443. For authentication instructions, see [Authenticate to the Rackspace Cloud](/reference/Authenticate to the Rackspace Cloud).