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Server Load Balancer:UpdateSecurityPolicyAttribute

Last Updated:Aug 27, 2026

Modifies the attributes of a security policy for a Network Load Balancer (NLB) instance.

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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

nlb:UpdateSecurityPolicyAttribute

update

*SecurityPolicy

acs:nlb:{#regionId}:{#accountId}:securitypolicy/{#SecurityPolicyId}

None None

Request parameters

Parameter

Type

Required

Description

Example

TlsVersions

array

No

The supported TLS versions. Valid values: TLSv1.0, TLSv1.1, TLSv1.2, and TLSv1.3. You can specify up to four TLS versions.

string

No

The supported TLS version. Valid values: TLSv1.0, TLSv1.1, TLSv1.2, and TLSv1.3. You can specify up to four TLS versions.

TLSv1.0

SecurityPolicyId

string

Yes

The ID of the TLS security policy.

tls-bp14bb1e7dll4f****

SecurityPolicyName

string

No

The name of the security policy.

The name must be 1 to 200 characters in length, and can contain letters, digits, periods (.), underscores (_), and hyphens (-).

TLSCipherPolicy

Ciphers

array

No

The supported cipher suites. Valid values vary based on the TlsVersions parameter. You can specify up to 32 cipher suites.

TLSv1.0 and TLSv1.1 support the following cipher suites:

  • ECDHE-ECDSA-AES128-SHA

  • ECDHE-ECDSA-AES256-SHA

  • ECDHE-RSA-AES128-SHA

  • ECDHE-RSA-AES256-SHA

  • AES128-SHA

  • AES256-SHA

  • DES-CBC3-SHA

TLSv1.2 supports the following cipher suites:

  • ECDHE-ECDSA-AES128-SHA

  • ECDHE-ECDSA-AES256-SHA

  • ECDHE-RSA-AES128-SHA

  • ECDHE-RSA-AES256-SHA

  • AES128-SHA

  • AES256-SHA

  • DES-CBC3-SHA

  • ECDHE-ECDSA-AES128-GCM-SHA256

  • ECDHE-ECDSA-AES256-GCM-SHA384

  • ECDHE-ECDSA-AES128-SHA256

  • ECDHE-ECDSA-AES256-SHA384

  • ECDHE-RSA-AES128-GCM-SHA256

  • ECDHE-RSA-AES256-GCM-SHA384

  • ECDHE-RSA-AES128-SHA256

  • ECDHE-RSA-AES256-SHA384

  • AES128-GCM-SHA256

  • AES256-GCM-SHA384

  • AES128-SHA256

  • AES256-SHA256

TLSv1.3 supports the following cipher suites:

  • TLS_AES_128_GCM_SHA256

  • TLS_AES_256_GCM_SHA384

  • TLS_CHACHA20_POLY1305_SHA256

  • TLS_AES_128_CCM_SHA256

  • TLS_AES_128_CCM_8_SHA256

string

No

The supported cipher suites. Valid values vary based on the TlsVersions parameter. You can specify up to 32 cipher suites.

TLSv1.0 and TLSv1.1 support the following cipher suites:

  • ECDHE-ECDSA-AES128-SHA

  • ECDHE-ECDSA-AES256-SHA

  • ECDHE-RSA-AES128-SHA

  • ECDHE-RSA-AES256-SHA

  • AES128-SHA

  • AES256-SHA

  • DES-CBC3-SHA

TLSv1.2 supports the following cipher suites:

  • ECDHE-ECDSA-AES128-SHA

  • ECDHE-ECDSA-AES256-SHA

  • ECDHE-RSA-AES128-SHA

  • ECDHE-RSA-AES256-SHA

  • AES128-SHA

  • AES256-SHA

  • DES-CBC3-SHA

  • ECDHE-ECDSA-AES128-GCM-SHA256

  • ECDHE-ECDSA-AES256-GCM-SHA384

  • ECDHE-ECDSA-AES128-SHA256

  • ECDHE-ECDSA-AES256-SHA384

  • ECDHE-RSA-AES128-GCM-SHA256

  • ECDHE-RSA-AES256-GCM-SHA384

  • ECDHE-RSA-AES128-SHA256

  • ECDHE-RSA-AES256-SHA384

  • AES128-GCM-SHA256

  • AES256-GCM-SHA384

  • AES128-SHA256

  • AES256-SHA256

TLSv1.3 supports the following cipher suites:

  • TLS_AES_128_GCM_SHA256

  • TLS_AES_256_GCM_SHA384

  • TLS_CHACHA20_POLY1305_SHA256

  • TLS_AES_128_CCM_SHA256

  • TLS_AES_128_CCM_8_SHA256

ECDHE-ECDSA-AES128-SHA

RegionId

string

No

The ID of the region where the NLB instance is deployed.

You can call the DescribeRegions operation to query the most recent region list.

cn-hangzhou

DryRun

boolean

No

Specifies whether to perform a dry run. Valid values:

  • true: checks the request without performing the operation. The system verifies the request for missing parameter values, incorrect request syntax, and service limits. If the check fails, the corresponding error message is returned. If the check succeeds, the DryRunOperation error code is returned.

  • false (default): sends the request. If the request passes verification, a 2xx HTTP status code is returned and the operation is performed.

false

ClientToken

string

No

The client token that is used to ensure the idempotence of the request.

You can use the client to generate the token. Make sure that the token is unique among different requests. Only ASCII characters are allowed.

Note

If you do not specify this parameter, the system uses the value of RequestId as the client token. The value of RequestId is different for each request.

123e4567-e89b-12d3-a456-426655440000

Response elements

Element

Type

Description

Example

object

The response parameters.

RequestId

string

The request ID.

D7A8875F-373A-5F48-8484-25B07A61F2AF

SecurityPolicyId

string

The ID of the TLS security policy.

tls-bp14bb1e7dll4f****

JobId

string

The ID of the asynchronous task.

72dcd26b-f12d-4c27-b3af-18f6aed5****

Examples

Success response

JSON format

{
  "RequestId": "D7A8875F-373A-5F48-8484-25B07A61F2AF",
  "SecurityPolicyId": "tls-bp14bb1e7dll4f****",
  "JobId": "72dcd26b-f12d-4c27-b3af-18f6aed5****"
}

Error codes

HTTP status code

Error code

Error message

Description

400 IllegalParam.PreserveClientIpSwitch The param of PreserveClientIpSwitch is illegal.
400 UpdateSecurityPolicyFailed The operation failed because of Security Policy is not changed.
404 ResourceNotFound.securitypolicy The specified resource of securitypolicy is not found.
404 ResourceNotFound.serverGroup The specified resource of serverGroup is not found. The specified resource of serverGroup is not found. Please check the input parameters.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.