AWS SDK Version 3 for .NET
API Reference

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Container for the parameters to the CreateSecurityGroup operation. Creates a security group.

A security group acts as a virtual firewall for your instance to control inbound and outbound traffic. 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.

When you create a security group, you specify a friendly name of your choice. You can't have two security groups for the same VPC with the same name.

You have a default security group for use in your VPC. If you don't specify a security group when you launch an instance, the instance is launched into the appropriate default security group. A default security group includes a default rule that grants instances unrestricted network access to each other.

You can add or remove rules from your security groups using AuthorizeSecurityGroupIngress, AuthorizeSecurityGroupEgress, RevokeSecurityGroupIngress, and RevokeSecurityGroupEgress.

For more information about VPC security group limits, see Amazon VPC Limits.

Inheritance Hierarchy


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


public class CreateSecurityGroupRequest : AmazonEC2Request

The CreateSecurityGroupRequest type exposes the following members


Public Method CreateSecurityGroupRequest()

Empty constructor used to set properties independently even when a simple constructor is available

Public Method CreateSecurityGroupRequest(string, string)

Instantiates CreateSecurityGroupRequest with the parameterized properties


Public Property Description System.String

Gets and sets the property Description.

A description for the security group.

Constraints: Up to 255 characters in length

Valid characters: a-z, A-Z, 0-9, spaces, and ._-:/()#,@[]+=&;{}!$*

Public Property GroupName System.String

Gets and sets the property GroupName.

The name of the security group.

Constraints: Up to 255 characters in length. Cannot start with sg-.

Valid characters: a-z, A-Z, 0-9, spaces, and ._-:/()#,@[]+=&;{}!$*

Public Property TagSpecifications System.Collections.Generic.List<Amazon.EC2.Model.TagSpecification>

Gets and sets the property TagSpecifications.

The tags to assign to the security group.

Public Property VpcId System.String

Gets and sets the property VpcId.

The ID of the VPC. Required for a nondefault VPC.


This example creates a security group for the specified VPC.

To create a security group for a VPC

var client = new AmazonEC2Client();
var response = client.CreateSecurityGroup(new CreateSecurityGroupRequest 
    Description = "My security group",
    GroupName = "my-security-group",
    VpcId = "vpc-1a2b3c4d"

string groupId = response.GroupId;


Version Information

Supported in: 8.0 and newer, Core 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5 and newer, 3.5