User guide

To enumerate existing security groups
1. Obtain a list of your account's security groups.
DescribeSecurityGroupsRequest secGroupRequest =
new DescribeSecurityGroupsRequest();
DescribeSecurityGroupsResponse secGroupResponse =
ec2Client.DescribeSecurityGroups(secGroupRequest);
List<SecurityGroup> secGroups = secGroupResponse.SecurityGroups;
This example but does not specify a group name, which directs DescribeSecurityGroups to return a
list containing all of the account's security groups.
2. Enumerate the requested security groups and select the desired group by name.
SecurityGroup secGroup = null;
foreach(SecurityGroup item in secGroups)
{
if (item.GroupName == "GroupName")
{
secGroup = item;
break;
}
}
If your account does not have a suitable security group, you can create a new one, as follows:
Important
Use this procedure only for new security groups. If you attempt to create a new security group
with the same name as one of your account's existing groups, CreateSecurityGroup throws
an exception.
To create a new Amazon EC2 security group
1. Create and initialize a CreateSecurityGroupRequest object.
var newGroupRequest = new CreateSecurityGroupRequest()
{
GroupName = "YourSecurityGroupName",
Description = "YourSecurityGroupDescription"
};
Assign the group's name and description to the object's GroupName and Description properties,
respectively. The two strings must contain only US-ASCII characters and the group name must be
unique within the AWS region in which you initialized your Amazon EC2 client.
2. Create the new security group.
Version v2.0.0
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AWS SDK for .NET Developer Guide
Specify an Amazon EC2 Security Group