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What Is DNS?

Domain Name Service (DNS) provides highly available and scalable authoritative DNS resolution services. It translates domain names like www.example.com into IP addresses like 192.1.2.3 required for network connection. The DNS service allows users to visit your websites or web applications with domain names.

The DNS service is free and is enabled by default for you.

Basic Functions

The DNS service provides the following functions:

  • Public Zone

    The DNS service helps you map domain names to public IP addresses so that visitors can access your website or web applications over the Internet.

  • Private Zone

    The DNS service associates private domain names that take effect only within VPCs with private IP addresses to facilitate access to cloud resources within the VPCs.

  • PTR Record (for Reverse Resolution)

    Reverse resolution is to obtain a domain name based on an IP address. It is usually used to improve the credibility of email servers.

  • Creating Resolution Lines

    You can specify that the DNS server return different resolution results for the same domain name based on the carrier networks or regions of visitors' IP addresses. With such resolution lines, you will greatly reduce network latency for visitors from different carrier networks and geographic areas.

Product Advantages

  • High performance

    Offer a new generation of efficient and stable resolution services, enabling tens of millions of concurrent queries on a single node.

  • Security protection

    Defend services against various DDoS attacks with Huawei's powerful anti-DDoS devices and extensive experience in security protections.

  • Easy access to cloud resources

    Create private domain names so that ECSs can communicate with each other or with resources within VPCs using private domain names. The traffic is not directed to the Internet, reducing network latency and ensuring security.

    Check Configuring a Private Domain Name for an ECS for detailed operations.

  • Smooth service migration

    Migrate an in-use website domain name to the DNS service. You create a public zone and add record sets in the DNS service in advance to ensure that your website services are not interrupted by the migration.

    For details, see Migrating Domain Names to HUAWEI CLOUD DNS.

  • Isolation of core data

    A private DNS server provides domain name resolution for ECSs carrying core data, enabling communications while safeguarding the core data. You do not need to bind EIPs to these ECSs.

Accessing the DNS Service

The cloud platform provides a web-based management console and HTTPS-based APIs through which you can access the DNS service.

  • Management console

    A web-based management console is provided for you to access the DNS service.

    • If you have registered an account, log in to the management console and choose Network > Domain Name Service.
    • Otherwise, see Registering with HUAWEI CLOUD.

    Upon a quick configuration on the management console, you can start using the DNS service for domain name resolution.

  • APIs

    If you want to integrate the DNS service into a third-party system for secondary development, you can access DNS using APIs. For details, see the Domain Name Service API Reference.