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General DNS Resolution
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Service Management
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Application Deployment
General DNS Resolution
The DNS service enables visitors to access your service resources, such as ECS, OBS, and ELB using domain names.
Advantages
High Concurrency
Tens of millions of concurrent queries on a single node
Multiple Record Types
Support for all common record types
Quick Operation
Secure and stable records created in a minute
Service Management
Create public and private zones for the same domain names to deploy your website both online and offline with the same code, facilitating service maintenance.
Advantages
Smooth Deployment
Deploy the same services online and offline. Offline changes can be seamlessly updated to the online system.
Easy Maintenance
Test the offline service in a VPC without interrupting online applications.
Application Deployment
Map private domain names to ECS IP addresses in specified VPCs, allowing these ECSs to communicate with each other using domain names.
Advantages
No Code Modification
If an ECS becomes faulty, you only need to change its IP address in the DNS records, instead of modifying existing configurations.
Free from DNS Spoofing
Private domain names are not exposed to the Internet so you do not need to worry about DNS spoofing and attacks.
High Performance
A private DNS server directly responds to requests for private domain names, greatly reducing network latency.
Functions
Customize any domain names in VPCs.
Associate one DNS zone with multiple VPCs to simplify service deployment and management.
Create PTR records for private ECS IP addresses.
Receive responses directly from an internal DNS server for private domain requests (for example, to access ECSs in VPCs and services like OBS), accelerating domain resolution and preventing DNS spoofing.
Stable, secure, and swift DNS resolution
Rich features, such as PTR records, DomainKeys Identified Mail (DKIM), and wildcard DNS records
Multiple record types, including A, AAAA, MX, CNAME, TXT, NS, PTR, CAA, and SRV
