Specify at least one security group when creating an Amazon reservation. Each available region requires at least one specified security group.
A security group acts as a firewall to control access to a machine. Every region includes at least the default security group. Administrators can use the Amazon Web Services Management Console to create additional security groups, configure ports for Microsoft Remote Desktop Protocol or SSH, and set up a virtual private network for an Amazon VPN.
When you create an Amazon reservation or configure a machine component in the blueprint, you can choose from the list of security groups that are available to the specified Amazon account region. Security groups are imported during data collection.
For information about creating and using security groups in Amazon Web Services, see Amazon documentation.