AWS SDK Version 3 for .NET
API Reference

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Describes the specified security groups or all of your security groups.

A security group is for use with instances either in the EC2-Classic platform or in a specific VPC. For more information, see Amazon EC2 Security Groups in the Amazon Elastic Compute Cloud User Guide and Security Groups for Your VPC in the Amazon Virtual Private Cloud User Guide.


For .NET Core this operation is only available in asynchronous form. Please refer to DescribeSecurityGroupsAsync.

Namespace: Amazon.EC2
Assembly: AWSSDK.EC2.dll
Version: 3.x.y.z


public virtual DescribeSecurityGroupsResponse DescribeSecurityGroups(
         DescribeSecurityGroupsRequest request
Type: Amazon.EC2.Model.DescribeSecurityGroupsRequest

Container for the necessary parameters to execute the DescribeSecurityGroups service method.

Return Value
The response from the DescribeSecurityGroups service method, as returned by EC2.


This example describes the specified security group.

To describe a security group

var response = client.DescribeSecurityGroups(new DescribeSecurityGroupsRequest 
    GroupIds = new List<string> {


This example describes the security groups that include the specified tag (Purpose=test).

To describe a tagged security group

var response = client.DescribeSecurityGroups(new DescribeSecurityGroupsRequest 
    Filters = new List<Filter> {
        new Filter {
            Name = "tag:Purpose",
            Values = new List<string> {


Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

See Also