Overview
Service Overview
The DNS service is a service that converts domain names, which are easy for humans to recognize, into IP addresses composed of numbers so that systems can identify them, allowing access to services.
Through the DNS service, users can easily register desired domains and manage domain records themselves.
Features
- Easy Domain Registration: New domain registration/change management is possible through a web-based console. You can easily create and manage domains through the web without building a separate DNS infrastructure or installing a DNS solution.
- Various Record Support: You can set various resource record types such as A, AAAA, CNAME, TXT, MX, SPF, etc., and automatically scale to handle large query volumes without user intervention.
- Convenient Hosting Environment Management: You can select and use Public domain names that provide web services exposed to the Internet and Private domain names that can only be used by designated internal users without Internet connection according to the environment and purpose.
Configuration Diagram
Provided Functions
The DNS service provides the following functions.
- Hosted Zone Creation/Management: You can create and manage Public Hosted Zones that can be accessed from anywhere through the Internet and Private Hosted Zones that can only be accessed in designated network environments without exposure to the Internet.
- Public Domain Name Application: You can apply for a Public Domain Name that allows access from anywhere through the Internet.
- Various Resource Record Support: You can select and use record types according to the usage environment and purpose.
| Record Type | Description |
|---|---|
| A | Specify the IPv4 address corresponding to the domain name so that the IP address can be found through the domain name |
| AAAA | Specify the IPv6 address corresponding to the domain name so that the IP address can be found through the domain name |
| TXT | Set text information about the domain |
| CNAME | Specify an alias for the domain name |
| MX | Specify the mail server for the domain and subdomains owned by the user |
| SPF | Verify the IP address or domain name of the mail sending server to prevent spam emails (Sender Policy Framework) |
| NS | Name server responsible for the domain (automatically generated) |
| SOA | Define the start information of the domain (start point of authority) (automatically generated) |
Components
Private DNS
To manage Private domain names for use only in designated network environments without exposure to the Internet, you must first create a Private DNS. Private DNS names are commonly used in all regions within an Account. They can be created for the first time in any region within the Account, and thereafter can be activated with the same Private DNS name in other regions from the Private DNS list. You can select the VPC to connect to Private DNS for each region. By using a common Private DNS name, you can share and manage Private Hosted Zone information across all regions.
Hosted Zone
Private Hosted Zone allows you to create and manage domain names that can only be used in designated network environments targeting VPCs connected to Private DNS. Public Hosted Zone allows you to manage Public Domain Names created through Samsung Cloud Platform. Through Hosted Zone, you can register and modify records according to your purpose.
Public Domain Name
You can apply for a Public Domain Name in conjunction with Whois, a Public Domain Name management company. Public Domain Name can be purchased in one-year units, and you can set or change whether to automatically renew (in one-year units) up to 7 days before the purchase period ends.
Constraints
The constraints of the DNS service are as follows.
| Item | Description |
|---|---|
| Number of Private DNS that can be created within an Account | 1 |
| Number of Hosted Zones that can be created within an Account | 20 |
| Number of records that can be registered per Hosted Zone | 100 |
- Application for Public Domain Name and Public Hosted Zone use in the Korea South (kr-south) region is restricted.
Prerequisite Services
The DNS service has no prerequisite services.