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Web Application Firewall

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DocumentationWeb Application Firewall

ModifyHost

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Last updated: 2025-10-30 22:08:55

1. API Description

Domain name for API request: waf.intl.tencentcloudapi.com.

This API is used to edit the configuration of domain names protected by CLB WAF.

A maximum of 20 requests can be initiated per second for this API.

We recommend you to use API Explorer
Try it
API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common Params. The value used for this API: ModifyHost.
Version Yes String Common Params. The value used for this API: 2018-01-25.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
Host Yes HostRecord Edited domain configuration information
InstanceID No String Unique Instance ID

3. Output Parameters

Parameter Name Type Description
DomainId String Edited domain ID
RequestId String The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Editing the Domain Names Protected by CLB WAF

Input Example

https://waf.intl.tencentcloudapi.com/?Action=ModifyHost
&InstanceID=aabbcc
&Host.Status=1
&Host.Engine=1
&Host.Domain=1
&Host.DomainId=1
&Host.LoadBalancerSet.0.Protocol=1
&Host.LoadBalancerSet.0.Zone=1
&Host.LoadBalancerSet.0.Region=gz
&Host.LoadBalancerSet.0.LoadBalancerId=1
&Host.LoadBalancerSet.0.ListenerId=1
&Host.LoadBalancerSet.0.Vip=1
&Host.LoadBalancerSet.0.ListenerName=1
&Host.LoadBalancerSet.0.LoadBalancerName=1
&Host.LoadBalancerSet.0.Vport=1
&Host.Level=1
&Host.MainDomain=snv.vom
&Host.Region=cd
&Host.FlowMode=1
&Host.State=1
&Host.ClsStatus=1
&Host.IsCdn=1
&Host.Mode=1
&Host.Edition=clb-waf
&<Common request parameters>

Output Example

{
    "Response": {
        "RequestId": "97720395-7456-4a21-bcd9-1f32a7deaa90",
        "Error": {
            "Code": "ResourceInUse",
            "Message": "DomainExisted"
        }
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
FailedOperation Operation failed.
InternalError Internal error.
InvalidParameter Parameter error.
InvalidParameterValue Invalid parameter value.
LimitExceeded The quota limit is exceeded.
MissingParameter Parameters are missing
OperationDenied Operation denied.
ResourceInUse Resources are occupied.
ResourceInsufficient Insufficient resources.
ResourceNotFound Resources do not exist.
ResourceUnavailable Resources are unavailable.
ResourcesSoldOut Resources are sold out.
UnauthorizedOperation Unauthorized operation.
UnknownParameter Unknown parameter.

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