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- What's New
- Function Overview
- Service Overview
- Getting Started
-
User Guide
- Public Zones
- Private Zones
- Record Sets
- PTR Records
- Intelligent Resolution
- Resolver
- Permissions Management
- Using CTS to Collect DNS Key Operations
- Access Logging
- Quota Adjustment
- Best Practices
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- APIs
- Examples
- Permissions Policies and Supported Actions
- Appendix
- SDK Reference
-
FAQs
-
DNS Overview
- Will I Be Billed for the DNS Service?
- How Many Zones, PTR Records, and Record Sets Can I Create?
- What Are Huawei Cloud DNS Servers?
- What Are Huawei Cloud Private DNS Server Addresses?
- What Are the Differences Between Public and Private Domain Names?
- Does DNS Support IPv6?
- Does DNS Support Explicit and Implicit URLs?
- Does DNS Support Dynamic Domain Name Resolution?
- Does DNS Support Wildcard Entries?
- What Is TTL?
- How Many Domain Name Levels Does DNS Support?
- How Are Zones Queried to Resolve a Domain Name?
- What Are the Priorities of Resolution Lines?
- Why Was the Email Address Format Changed in the SOA Record?
- What Is CAA?
- Why Should I Set Priority For an MX Record Set?
- Can DNS Point a Domain Name to a Specific Port?
- Invalid Domain Resolution
- Website Access Failures
-
Public Zones
- Why Is a Message Indicating Conflict with an Existing Record Set Displayed When I Add a Record Set?
- How Do I Handle the Conflict Between CNAME and MX Record Sets?
- How Do I Add Record Sets to Subdomains?
- Which IP Address Is Returned for the Domain Name If There Are Multiple IP Addresses in a Record Set?
- Can I Modify a Zone?
- Can DNS Translate a Domain Name to IP Addresses of On-premises Servers or Third-Party Servers?
- How Can Multiple Domain Names Be Linked to the Same Website?
- Configuring Weighted Routing
- Can DNS Resolve a Domain Name that Has Not Been Licensed?
- Does DNS Support Dynamic Domain Name Resolution?
- How Do I View and Change the DNS Servers of a Domain Name?
-
Private Zones
- Why Is a Message Indicating Conflict with an Existing Record Set Displayed When I Add a Record Set?
- How Do I Change Default DNS Servers of an ECS to Huawei Cloud Private DNS Servers?
- How Can I Access an ECS Using Its Host Name?
- How Can I Map the Private IP Address of an ECS to a Domain Name?
- How Can I Use a Private Domain Name to Route Internet Traffic?
- Can I Use Private Domain Names Across Regions?
- Do I Need to Register Private Domain Names?
- Will a Deleted VPC Be Automatically Disassociated from the Private Zone?
- Are Private DNS Server Addresses the Same for All Users?
- What Are the Restrictions on Concurrent Private DNS Requests?
- Reverse Resolution
- Domain Transfer
-
DNS Overview
- Videos
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Overview
- Getting Started
- Private Zone
- Record Set
- PTR Record
- Permissions Management
- Key Operations Recorded by CTS
- Quota Adjustment
- FAQs
- Change History
- API Reference (ME-Abu Dhabi Region)
-
User Guide (Paris Region)
- Overview
- Getting Started
- Public Zones
- Private Zones
- Record Sets
- PTR Records
- Intelligent Resolution
- Permissions Management
- Key Operations Recorded by CTS
- Quota Adjustment
-
FAQ
-
DNS Overview
- Will I Be Billed for the DNS Service?
- How Many Zones, PTR Records, and Record Sets Can I Create?
- What Are DNS Servers?
- What Are the Differences Between Public and Private Domain Names?
- Does DNS Support IPv6?
- Does DNS Support Explicit and Implicit URLs?
- Does DNS Support Dynamic Domain Name Resolution?
- Does DNS Support Wildcard Entries?
- What Is TTL?
- How Many Domain Name Levels Does DNS Support?
- How Are Zones Queried to Resolve a Domain Name?
- Why Was the Email Address Format Changed in the SOA Record?
- What Is CAA?
- Why Should I Set Priority For an MX Record Set?
- Can DNS Point a Domain Name to a Specific Port?
-
Public Zones
- How Do I Add Record Sets to Subdomains?
- Which IP Address Is Returned for the Domain Name If There Are Multiple IP Addresses in a Record Set?
- What Can I Do If There Is Message Indicating that the Public Zone Already Exists?
- Can I Modify a Zone?
- How Can Multiple Domain Names Be Linked to the Same Website?
- Configuring Weighted Routing
-
Private Zones
- How Can I Map the Private IP Address of an ECS to a Domain Name?
- Can I Use Private Domain Names Across Regions?
- Do I Need to Register Private Domain Names?
- Will a Deleted VPC Be Automatically Disassociated from the Private Zone?
- Are Private DNS Server Addresses the Same for All Users?
- What Are the Restrictions on Concurrent Private DNS Requests?
- Reverse Resolution
-
DNS Overview
- Change History
- API Reference (Paris Region)
-
User Guide (Kuala Lumpur Region)
- Overview
- Getting Started
- Private Zone
- Record Set
- Permissions Management
- Key Operations Recorded by CTS
- Quota Adjustment
-
FAQs
-
DNS Overview
- Will I Be Billed for the DNS Service?
- How Many Zones and Record Sets Can I Create?
- What Are the Private DNS Servers Provided by the DNS Service?
- Does DNS Support Wildcard Entries?
- How Are Zones Queried to Resolve a Domain Name?
- Why Was the Email Address Format Changed in the SOA Record?
- Can DNS Point a Domain Name to a Specific Port?
- Private Zones
-
DNS Overview
- Change History
- API Reference (Kuala Lumpur Region)
- User Guide (Ankara Region)
- API Reference (Ankara Region)
-
User Guide (ME-Abu Dhabi Region)
- Glossary
- General Reference
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Region and AZ
Concept
A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.
- Regions are divided based on geographical location and network latency. Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same region. Regions are classified into universal regions and dedicated regions. A universal region provides universal cloud services for common tenants. A dedicated region provides specific services for specific tenants.
- An AZ contains one or more physical data centers. Each AZ has independent cooling, fire extinguishing, moisture-proof, and electricity facilities. Within an AZ, computing, network, storage, and other resources are logically divided into multiple clusters.
Figure 1 shows the relationship between regions and AZs.
Huawei Cloud provides services in many regions around the world. You can select a region and an AZ based on requirements. For more information, see Huawei Cloud Global Regions.
Selecting a Region
When selecting a region, consider the following factors:
- Location
It is recommended that you select the closest region for lower network latency and quick access.
- If your target users are in Asia Pacific (excluding the Chinese mainland), select the CN-Hong Kong, AP-Bangkok, or AP-Singapore region.
- If your target users are in Africa, select the AF-Johannesburg region.
- If your target users are in Latin America, select the LA-Santiago region.
NOTE:
The LA-Santiago region is located in Chile.
- Resource price
Resource prices may vary in different regions. For details, see Product Pricing Details.
Selecting an AZ
When deploying resources, consider your applications' requirements on disaster recovery (DR) and network latency.
- For high DR capability, deploy resources in different AZs within the same region.
- For lower network latency, deploy resources in the same AZ.
Regions and Endpoints
Before you use an API to call resources, specify its region and endpoint. For more details, see Regions and Endpoints.
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