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Tair (Redis® OSS-Compatible):ModifyInstanceVpcAuthMode

Last Updated:Aug 27, 2026

Enables or disables password-free access for a Tair (Redis OSS-compatible) instance.

Operation description

With password-free access enabled, Elastic Compute Service (ECS) instances in the same virtual private cloud (VPC) can connect to the Tair instance without a password. Username-and-password connections are still supported.

Note

The Tair instance is deployed in a VPC. For more information, see Enable password-free access.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

kvstore:ModifyInstanceVpcAuthMode

update

*DBInstance

acs:kvstore:{#regionId}:{#accountId}:instance/{#instanceId}

  • kvstore:VpcAuthMode
None

Request parameters

Parameter

Type

Required

Description

Example

InstanceId

string

Yes

The ID of the instance.

r-bp1zxszhcgatnx****

VpcAuthMode

string

Yes

Whether to disable password-free access. Valid values:

  • Open: disables password-free access.

  • Close: enables password-free access.

Note

Default value: Open.

Close

Response elements

Element

Type

Description

Example

object

RequestId

string

The ID of the request.

ABAF95F6-35C1-4177-AF3A-70969EBD****

Examples

Success response

JSON format

{
  "RequestId": "ABAF95F6-35C1-4177-AF3A-70969EBD****"
}

Error response

JSON format

{ 
  "RequestId":"29896E96-E8C4-4F24-868A-6xxxxxxxx3"
}

Error codes

HTTP status code

Error code

Error message

Description

403 ParamNotSupportedForCurrentVersion Parameter is not supported for current version.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.