هذه الصفحة غير متوفرة حاليًا بلغتك المحلية. نحن نعمل جاهدين على إضافة المزيد من اللغات. شاكرين تفهمك ودعمك المستمر لنا.
- 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
Copied.
How Can I Configure a PTR Record to Map the IP Address of an ECS to a Domain Name?
PTR records enable users to query domain names based on IP addresses.
To map the private IP address of an ECS to a domain name, you must create a private zone and create a PTR record in the zone.
The domain name in a PTR record must be in the x.x.x.x.in-addr.arpa format. in-addr.arpa is the domain name suffix used for reverse resolution.
For example, if the private IP address is 192.168.1.10, the domain name in the PTR record must be 10.1.168.192.in-addr.arpa.
In this case, you must create a private zone named 192.in-addr.arpa and add a PTR record with its value set to 10.1.168.192.in-addr.arpa.
Creating a Private Zone
- Log in to the management console.
- In the service list, choose Network > Domain Name Service.
The DNS console is displayed.
- In the navigation pane, choose Private Zones.
The Private Zones page is displayed.
- Click in the upper left corner and select the desired region and project.
- Click Create Private Zone.
- Set the parameters based on Table 1.
Table 1 Parameters for creating a private zone Parameter
Description
Example Value
Name
Domain name
Set the domain name suffix to in-addr.arpa.
192.in-addr.arpa
VPC
VPC to be associated with the private zone
Select the VPC you want to associate with the private zone.
N/A
Email
(Optional) Email address of the administrator managing the private zone
It is recommended that you set the email address to HOSTMASTER@Domain name.
For more information about the email address, see Why Was the Email Address Format Changed in the SOA Record?
HOSTMASTER@example.com
Enterprise Project
Enterprise project associated with the private zone
You can manage private zones by enterprise project.
NOTE:This parameter is available and mandatory only when Account Type is set to Enterprise Account.
When setting this parameter, note the following:
- If you do not manage zones by enterprise project, select the default enterprise project.
- If you manage zones by enterprise project, select an existing enterprise project.
default
Tag
(Optional) Identifier of a resource
Each tag contains a key and a value. You can add a maximum of 10 tags to a zone.
For details about tag key and value requirements, see Table 2.
example_key1
example_value1
Description
(Optional)
Supplementary information about the zone
You can enter a maximum of 255 characters.
This is a private zone.
Table 2 Tag key and value requirements Parameter
Requirements
Example Value
Key
- Cannot be left blank.
- Must be unique for each resource.
- Can contain a maximum of 36 characters.
- Cannot start or end with a space or contain special characters =*<>\,|/
example_key1
Value
- Cannot be left blank.
- Can contain a maximum of 43 characters.
- Cannot start or end with a space or contain special characters =*<>\,|/
example_value1
- Click OK.
- Switch back to the Private Zones page.
View the created private zone.NOTE:
Click the zone name to view zone details. You can view SOA and NS record sets automatically generated by the system.
- The SOA record set defines the DNS server that is the authoritative information source for a particular domain name.
- The NS record set defines authoritative DNS servers for a domain name.
Adding a PTR Record
- On the Private Zones page, click the name of the private zone that you have created.
The Record Sets page is displayed.
- Click Add Record Set.
The Add Record Set dialog box is displayed.
- Set the parameters based on Table 3.
Table 3 Parameters for adding a PTR record Parameter
Description
Example Value
Name
IP address in the PTR record (typed in reverse order).
10.1.168
For example, if the IP address is 192.168.1.10, the domain name in the PTR record is 10.1.168.192.in-addr.arpa.
- If the private zone name is 192.in-addr.arpa, enter 10.1.168 in the box.
- If the private zone name is 1.168.192.in-addr.arpa, enter 10 in the box.
Type
Type of the record set.
PTR – Map IP addresses to domains
TTL (s)
Cache duration of the record set, in seconds.
The default value is 300, which is, 5 minutes.
Value
Domain name mapped to the IP address.
You can enter only one name.
mail.example.com
Tag
(Optional) Identifier of a resource
Each tag contains a key and a value. You can add a maximum of 10 tags to a record set.
For details about tag key and value requirements, see Table 2.
example_key1
example_value1
Description
(Optional) Supplementary information about the PTR record.
The PTR record is for reverse resolution.
- Click OK.
- Switch back to the Record Sets page.
View the added record set in the record set list of the zone and ensure that the status of the record set is Normal.
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
For any further questions, feel free to contact us through the chatbot.
Chatbot