Updated on 2022-01-25 GMT+08:00

Adding a TXT Record Set

Scenarios

A TXT record set provides description 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 a TXT record set

    Parameter

    Description

    Example Value

    Name

    Prefix of the domain name to be resolved.

    For example, if the zone name is example.com, the domain name prefix can be as follows:

    • www: The domain name is www.example.com, which is usually used for a website.
    • Left blank: The domain name is example.com.

      In some cases, you may need to set the record set name to the at sign (@). However, the at sign is not supported. Leave the Name blank.

    • abc: The domain name is abc.example.com, a subdomain of example.com.
    • mail: The domain name is mail.example.com, which is typically used for an email server.
    • *: The domain name is *.example.com, which is a wildcard domain name, indicating all subdomains of example.com.

    Left blank

    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.

    TXT – Specify text records

    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.

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

    Value

    Text content

    Configuration rules:

    • Text record values must be enclosed in double quotation marks.
    • One or more text record values are supported, each on a separate line.

      A maximum of 50 text record values can be entered.

    • A single text record value can contain multiple character strings, each of which is double quoted and separated from others using a space.

      One character string cannot exceed 255 characters.

      A value must not exceed 4096 characters.

    • The value cannot be left blank.
    • The text cannot contain a backslash (\).
    • Single text record:

      "aaa"

    • Multiple text records:

      "bbb"

      "ccc"

    • A text record that contains multiple strings:

      "ddd" "eee" "fff"

    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 Other 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.