Updated on 2022-08-16 GMT+08:00

Adding an SRV Record Set

Scenarios

To tag a server to show what services it provides, you can add SRV record sets for a domain name.

For details about other record set types, see Record Set Types and Configuration Rules.

Procedure

  1. Log in to the management console.
  2. In the service list, choose Network > Domain Name Service.

    The DNS console is displayed.

  1. In the navigation pane, choose Private Zones.

    The zone list is displayed.

  2. Click in the upper left corner and select the desired region and project.
  3. Click the zone name.
  4. Click Add Record Set.

    The Add Record Set dialog box is displayed.

  1. Set required parameters based on Table 1.
    Table 1 Parameters for adding an SRV record set

    Parameter

    Description

    Example Value

    Name

    Service (for example, FTP, SSH, or SIP) provided over the specified protocol (for example, TCP or UDP) on a host

    The format is _Service name._Protocol.

    _ftp._tcp

    _ftp._tcp indicates that the host provides the FTP service over TCP.

    Type

    Type of the record set

    If a message is displayed indicating that the record set you are trying to create exists, the record set conflicts with an existing record set.

    SRV – Record servers providing specific services

    TTL (s)

    Cache duration of the record set on a local DNS server, in seconds.

    The value ranges from 300 to 2147483647, and the default is 300.

    If your service address changes frequently, set TTL to a smaller value.

    The default value is 300s, which is, 5 minutes.

    Value

    Server address

    You can enter a maximum of 50 record values, each on a separate line.

    The value format is [priority] [weight] [port number] [server address].

    Configuration rules:

    • The priority, weight, and port number range from 0 to 65535.
    • A smaller priority value indicates a higher priority.
    • A larger weight value indicates a larger weight.
    • The server address is the domain name of the target server.

      Ensure that the domain name can be resolved.

    NOTE:

    The system checks the priority values first. If the priority values are the same, the system will check the weight values.

    2 1 2355 example_server.test.com

    Tag

    (Optional) Identifier of the record set.

    Each tag contains a key and a value. You can add a maximum of 10 tags to a record set. This parameter is displayed when you expand More Settings.

    For details about tag key and value requirements, see Table 2.

    example_key1

    example_value1

    Description

    (Optional) Supplementary information about the record set.

    You can enter a maximum of 255 characters.

    -

    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

  2. Click OK.
  3. 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.