Modifying a PTR Record for an EIP

Function

This API is used to modify a PTR record for an EIP.

Calling Method

For details, see Calling APIs.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.

If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
dns:ptr:update	Write	ptr *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:ptr:set	-

URI

PUT /v2.1/ptrs/{ptr_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
ptr_id	Yes	String	PTR record ID

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition The user token. The token can be obtained by calling an IAM API. The value of X-Subject-Token in the response header is the user token. For details about how to obtain a user token, seeObtaining a User Token. Constraints N/A Range N/A Default Value N/A

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
ptrdnames	Yes	Array of strings	List of domain names of the PTR record. A maximum of 10 domain names are allowed.
description	No	String	Descriptions about the PTR record
ttl	No	Integer	PTR record caching duration (in seconds) on a local DNS server. The longer the duration is, the slower the update takes effect. The value ranges from 1 to 2147483647.

Response Parameters

Status code: 202

**Table 4** Response body parameters
Parameter	Type	Description
publicip	PublicIpRes object	EIP
ptrdnames	Array of strings	List of domain names of the PTR record. A maximum of 10 domain names are allowed.
id	String	PTR record ID
description	String	Descriptions about the PTR record
ttl	Integer	PTR record caching duration (in seconds) on a local DNS server. The longer the duration is, the slower the update takes effect.
status	String	Resource status
links	pageLink object	Definition The link to the current page or other pages. When a response is broken into pages, a next link is provided to point to the next page. Range N/A
enterprise_project_id	String	ID of the enterprise project associated with the PTR record. The value can contain a maximum of 36 characters.

**Table 5** PublicIpRes
Parameter	Type	Description
region	String	Region to which the EIP belongs
id	String	EIP ID
address	String	EIP

**Table 6** pageLink
Parameter	Type	Description
self	String	Definition The link to the current page. Range N/A
next	String	Definition The link to the next page. Range N/A

Example Requests

Modifying the domain name and description of a PTR record and setting the TTL to 300s

PUT https://{endpoint}/v2.1/ptrs/9a175b97889f2f3501889fa3a8a66ed0

{
  "ptrdnames" : [ "www.example.com" ],
  "description" : "Description for this PTR records",
  "ttl" : 300
}

Example Responses

Status code: 202

Request accepted

{
  "publicip" : {
    "region" : "xxx",
    "id" : "a1645603-9814-44f9-ba19-1c565af9eb81",
    "address" : "215.255.1.80"
  },
  "ptrdnames" : [ "www.example.com" ],
  "id" : "9a175b97889f2f3501889fa3a8a66ed0",
  "description" : "Description for this PTR records",
  "ttl" : 300,
  "status" : "PENDING_UPDATE",
  "links" : {
    "self" : "https://Endpoint/v2.1/ptrs/9a175b97889f2f3501889fa3a8a66ed0"
  }
}