Contents
To use the Cloud Authentication Service effectively, you should understand several key concepts:
- Endpoint
An endpoint is an entry point to an API. The endpoint is defined as a set of base URLs. API operations are defined relative to these URLs. An API may offer several regional endpoints for a single API.
- Internal URL
An internal URL is a URL that is accessible only from within the Rackspace Cloud network. Access to an internal URL is always free of charge.
- Public URL
A public URL is a URL that is accessible from anywhere. Access to a public URL usually incurs traffic charges.
- Service Catalog
The service catalog is a library of endpoints that a token is authorized to access. The service catalog defines the scope of a token.
- Token
A token is an opaque string that represents an authorization to access cloud resources. Tokens may be revoked at any time and are valid for a finite duration.
