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General DNS Resolution
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Service Management
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Application Deployment
General DNS Resolution
DNS enables you to map domain names to instances such as ECSs, OBS buckets, and load balancers.
Advantages
High Concurrency
A single node can handle millions of concurrent queries.
Multiple Record Types
You can add multiple types of record sets.
Quick Operations
You can import up to 500 record sets on the DNS console. The record sets you add are effective within a minute.
Service Management
You can create public and private zones for the same domain name and deploy your applications online and offline.
Advantages
Smooth Deployment
You can easily deploy applications online and offline and seamlessly update offline changes to the online applications.
Easy Maintenance
You can test offline applications in a VPC without interrupting online applications.
Application Deployment
You can map private IP addresses of servers to private domain names in specific VPCs, thereby allowing the servers to communicate by using domain names.
Advantages
No Code Modification
If a server becomes faulty, you only need to change its IP address in the DNS record set. You do not need to change the code.
Free from DNS Spoofing
You do not need to worry about DNS spoofing because private domain names are not exposed to the Internet.
Lower Latency
A private DNS server directly responds to requests for private domain names, ensuring lower latency for your end users.
Functions
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Private DNS
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Record Management
Private zones work within associated VPCs.
You can simplify application deployment and management by associating a private zone with multiple VPCs.
PTR records map private IP addresses to private domain names.
Private DNS servers respond to private domain name requests, reducing latency and preventing DNS spoofing attacks.
DNS allows you to add multiple types of record sets, including A, AAAA, MX, CNAME, TXT, NS, PTR, CAA, and SRV. Domain names can be mapped to both IPv4 and IPv6 addresses.
HTTPDNS facilitates domain name resolution for mobile apps.
Requests are routed to different servers based on the relative weight assigned to each record set.
Rich configuration options, including PTR records, DomainKeys Identified Mail (DKIM), and wildcard DNS records are available.
