ApsaraDB for RDS supports two types of endpoints: internal and public endpoints. By default, the system provides you with an internal endpoint for connecting to your ApsaraDB for RDS instance. If you want to connect to your RDS instance over the Internet, you must apply for a public endpoint.
Internal and public endpoints
|AllocateInstancePublicConnection||Applies for a public endpoint for an instance.|
|ReleaseInstancePublicConnection||Releases the public endpoint of an instance.|