Last updated: 2019-11-29 18:44:01


1. API Description

Domain name for API request:

This API (ModifySecurityGroupPolicies) is used to reset the egress and ingress policies (SecurityGroupPolicy) of a security group.

  • This API deletes all the current egress and ingress policies, and then add new egress and ingress policies. The custom index PolicyIndex is not supported.
  • If SecurityGroupPolicySet.Version is specified as 0, all policies will be cleared, and Egress and Ingress will be ignored.
  • The Protocol field allows you to enter TCP, UDP, ICMP, GRE, and ALL.
  • The CidrBlock field allows you to enter any string that conforms to the cidr format. (More details) In a basic network, if CidrBlock contains private IPs on Tencent Cloud for devices within your account other than CVMs, it does not mean this policy allows you to access these devices. The network isolation policies between tenants take priority over the private network policies in security groups.
  • The SecurityGroupId field allows you to enter the IDs of security groups that are in the same project as the security group to modify, including the ID of the security group itself, to represent private IPs of all CVMs under the security group. When this field is used, this policy will change as the CVM associated with the ID entered here changes while it's being used to match network messages, and does not need to be modified.
  • The Port field allows you to enter a single port number, or two port numbers separated by a minus sign, e.g., 80 or 8000-8010. The Port field is accepted only if the Protocol field is TCP or UDP.
  • The Action field only allows you to enter ACCEPT or DROP.
  • CidrBlock, SecurityGroupId and AddressTemplate are exclusive to each other, and cannot be entered at the same time. Protocol + Port and ServiceTemplate are mutually exclusive, and cannot be entered at the same time.

A maximum of 100 requests can be initiated per second for this API.

Note: This API supports Finance regions. Since Finance regions and non-Finance regions are isolated and not interconnected. If the common parameter Region is a Finance region (such as ap-shanghai-fsi), you need to specify a domain name containing the Finance region that should be identical to the value of Region field, for example:

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 parameter. The value used for this API: ModifySecurityGroupPolicies
Version Yes String Common parameter. The value used for this API: 2017-03-12
Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
SecurityGroupId Yes String Security group instance ID, such as sg-33ocnj9n. It can be obtained through DescribeSecurityGroups.
SecurityGroupPolicySet Yes SecurityGroupPolicySet Security group policy set. SecurityGroupPolicySet object must specify new egress and ingress policies at the same time. SecurityGroupPolicy object does not support custom index (PolicyIndex).

3. Output Parameters

Parameter Name Type Description
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Error Codes

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

Error Code Description
InvalidParameterValue.Malformed Invalid input parameter format.
ResourceNotFound Resource does not exist.

5. Example

Example 1 Modify egress and ingress policies of a security group

Input example
&<Common request parameters>

Output example

  "Response": {
    "RequestID": "354f4ac3-8546-4516-8c8a-69e3ab73aa8a"

6. Other Resources

Cloud API 3.0 comes with the following development tools to make it easier to call the API.