To change the security group of an ECS NIC, perform the operations described in this section.
The Change Security Group dialog box is displayed.
You can select multiple security groups. In such a case, the rules of all the selected security groups will be aggregated to apply on the ECS.
To create a security group, click Create Security Group.
Using multiple security groups may deteriorate ECS network performance. You are suggested to select no more than five security groups.