Creating a PTR Record

Function

Create a PTR record for an elastic IP address (EIP).

 

Note

The same URI is used to create, modify, and delete PTR records. Different request bodies are used to implement different functions.

URI

PATCH /v2/reverse/floatingips/{region}:{floatingip_id}

For details, see Table 1.

Table 1 Parameters in the URI

Parameter	Mandatory	Type	Description
region	Yes	String	Region of the tenant.
floatingip_id	Yes	String	EIP ID

Request

• Parameter description

  Table 2 Parameters in the request

  Parameter	Mandatory	Type	Description
  ptrdname	Yes	String	Domain name of the PTR record A domain name is case insensitive. Uppercase letters will also be converted into lowercase letters.
  description	No	String	PTR record description The value is left blank by default.
  ttl	No	Integer	PTR record cache duration (in seconds) on a local DNS server. The longer the duration is, the slower the update takes effect. If your service address is frequently changed, set TTL to a smaller value. The value ranges from 1 to 2147483647. The default value is 300.
  tags	No	Array of object	Resource tag. For details, see Table 3. The value is left blank by default.

  Table 3 Description of the tags field

  Parameter	Mandatory	Type	Description
  key	Yes	String	Tag key Cannot be left blank. Must be unique for each resource. Can contain a maximum of 128 Unicode characters. Can contain letters, digits, spaces, and the following characters: _ . : = + - @ Cannot start or end with a space, or cannot start with _sys_.
  value	No	String	Tag value Can be left blank. Can contain a maximum of 255 Unicode characters. Can contain letters, digits, spaces, and the following characters: _ . : = + - @

• Example request

  Create a PTR record for the EIP whose ID is c5504932-bf23-4171-b655-b87a6bc59334:

  PATCH https://{DNS_Endpoint}/v2/reverse/floatingips/region_id:c5504932-bf23-4171-b655-b87a6bc59334
  

  {
      "ptrdname": "www.example.com",
      "description": "Description for this PTR record",
      "ttl": 300,
      "tags": [
          {
            "key": "key1",
            "value": "value1"
          }
      ]
  }
  

Response

• Parameter description

  Table 4 Parameters in the response

  Parameter	Type	Description
  id	String	PTR record ID, which is in {region}:{floatingip_id} format
  ptrdname	String	Domain name of the PTR record
  description	String	PTR record description
  ttl	Integer	PTR record cache duration (in seconds) on a local DNS server. The longer the duration is, the slower the update takes effect. If your service address is frequently changed, set TTL to a smaller value. The value ranges from 1 to 2147483647. The default value is 300.
  address	String	EIP
  status	String	Resource status For details, see Resource Status.
  action	String	Requested operation on the resource The value can be CREATE, UPDATE, DELETE, or NONE. NONE indicates that no operation will be performed.
  links	Object	Link to the current resource or other related resources. When a response is broken into pages, a next link is provided to retrieve all results. For details, see Table 5.

  Table 5 Parameters in the links field

  Parameter	Type	Description
  self	String	Link to the current resource
  next	String	Link to the next page

• Example response

  {
      "id": "region_id:c5504932-bf23-4171-b655-b87a6bc59334",
      "ptrdname": "www.example.com.",
      "description": "Description for this PTR record",
      "address": "10.154.52.138",
      "action": "CREATE",
      "ttl": 300,
      "status": "PENDING_CREATE",
      "links": {
          "self": "https://Endpoint/v2/reverse/floatingips/region_id:c5504932-bf23-4171-b655-b87a6bc59334"
      }
  }
  

Returned Value

If a 2xx status code is returned, for example, 200, 202, or 204, the request is successful.

For details, see Status Code.

last updated: 2025-04-02 11:04 UTC - commit: 0c0de7d4160249af074bd6952c35a746081f25f5