Service activation
Before activation
If you have not activated the Private DNS service, the internal DNS still provides free DNS resolution. This includes default free recursive resolution for endpoints, such as ECS instances and containers in a VPC, and a private authoritative service. The private authoritative service provides domain name resolution only for cloud product zones. When you purchase and start an ECS instance, Private DNS provides free domain name resolution for cloud products and recursive resolution for public domain names.
Recursive DNS resolution interacts with external third-party DNS systems. Alibaba Cloud does not provide a Service-Level Agreement (SLA) for unavailability caused by external network problems or third-party DNS failures.
After service activation
Activate the Private DNS service to use its advanced paid features. The following figure shows the service activation page.
The following table describes the features available before and after you activate the service.
Feature | Before activation | After activation | Billing trigger | |
Private authoritative | Custom domain name (Zone) | Not supported | Supported | Add a private authoritative domain name (Zone). |
Cloud product domain name (Zone) | Supported | Supported | This feature is free. You can view the domain name resolution configuration for cloud products only after activating the service. | |
Cache management | Not supported | Supported | Add a cache retention domain name. | |
Forwarding management | Not supported | Supported | Add an outbound endpoint or a forwarding rule. | |
Recursive resolution management | Supported | Supported | Activation is not required. Free recursive resolution is provided by default for endpoints in a VPC and for cloud products. | |
Inbound endpoint | Not supported | Supported | Add an inbound endpoint. | |
Network traffic analysis | Not supported | Supported | Network traffic analysis is enabled for the VPC, and DNS queries are generated. | |
Limits
The limits on Private DNS are the same regardless of whether you activate the service. For more information, see Limits.
Activate Private DNS
Log on to Alibaba Cloud DNS - Private DNS.
Click the Activate Now button.