Functions
Table 1 lists basic functions of the DNS service.
Before you use the DNS service, you'd better get familiar with Product Concepts to better understand the functions.
Category | Function | Description |
|---|---|---|
Private domain resolution | Private zone | A private zone contains records that specify how you want the DNS service to respond DNS queries for a domain name and its subdomains within one or more VPCs. You can create, modify, delete, and view private zones, associate private zones with VPCs, and disassociate private zones from VPCs.
For details, see Private Zone Overview. |
Associating a private zone with or disassociating a private zone from a VPC | You can associate a private zone with a VPC or disassociate a private zone from a VPC. For details, see Associating a VPC with a Private Zone and Disassociating a VPC from a Private Zone. | |
Record set | A record set is a collection of resource records that belong to the same domain name. A record set defines the resolution type and value of a domain name. You can add, modify, delete, or view A, CNAME, MX, AAAA, TXT, PTR, and SRV record sets for private zones. For details, see Record Set Overview. | |
Wildcard DNS record set | You can add record sets for all subdomains of a private domain name. DNS provides resolution services for all subdomains. For details, see Configuring a Wildcard DNS Record Set. | |
TTL | TTL is short for time to live, which specifies the cache period of resource records on a local DNS server, in seconds. The TTL value ranges from 1 to 2147483647. | |
Batch deletion | You can delete multiple private zones at a time. | |
Record sets | Global search of record sets | DNS allows you to centrally manage record sets. You can:
For details, see Searching for Record Sets. |
Tag | Resource tagging | You can configure tags for private zones and record sets. You can also use predefined tags provided by Tag Management Service (TMS) to quickly associate tags with resources. |
Quota | Quota adjustment | Quotas are enforced for service resources on the platform to prevent unforeseen spikes in resource usage. Quotas can limit the number of resources available to end users, for example, the maximum number of zones or record sets that you can create. If existing resource quotas cannot meet your service requirements, you can request higher quotas. For details, see Quota Adjustment. |