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doc-exports/docs/dns/umn/dns_usermanual_0013.html
Qin Ying, Fan 9a9e02c671 DNS UMN 20240223 version 
Reviewed-by: Hajba, László Antal <laszlo-antal.hajba@t-systems.com>
Co-authored-by: Qin Ying, Fan <fanqinying@huawei.com>
Co-committed-by: Qin Ying, Fan <fanqinying@huawei.com>
2024-06-07 13:20:48 +00:00

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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.

  3. In the navigation pane, choose Public Zones or Private Zones.

    The zone list is displayed.

  4. (Optional) If you have selected Private Zones, click on the upper left corner to select the region and project.
  5. Click the domain name.
  6. Click Add Record Set.

    The Add Record Set dialog box is displayed.

  7. Configure the 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

    A message may be displayed indicating that the record set you are trying to add 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 1 to 2147483647, and the default is 300.

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

    300

    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 value indicates a higher priority.
    • A larger 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:

    If the record set values have the same priority, requests to the domain name will be routed based on weights.

    2 1 2355 example_server.test.com

    Tag

    (Optional) Identifier of a record set. Each tag contains a key and a value. You can add a maximum of 20 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 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.
    • Can contain only letters, digits, hyphens (-), at signs (@), and underscores (_).

    example_key1

    Value
    • Cannot be left blank.
    • Can contain a maximum of 43 characters.
    • Can contain only letters, digits, hyphens (-), at signs (@), and underscores (_).

    example_value1
  8. Click OK.
  9. Switch back to the Record Sets tab.

    The added record set is in the Normal state.

Parent topic: Adding Record Sets