You can view the security group rules at any time. To do so, follow these steps:

  1. Log on to the ECS console.
  2. In the left-side navigation pane, click Networks and Security > Security Groups.
  3. Select the target region.
  4. Select a security group, and click Add Rules.
  5. Depending on the network type, the following information is displayed for security groups s:
    • For VPC, Inbound and Outbound is displayed.
    • For classic network, Internet Inbound, Internet Outbound, Intranet Inbound, and Intranet Outbound is displayed.
  6. Click a tab to view the security group rules for that type.