In this example, the OCI GoldenGate deployment is accessible over the public internet using port 443.

To connect to an on-premise Oracle database not available over the public internet, you must create an Oracle connection and select ‘Dedicated endpoint' for Traffic routing method. This ensures that OCI GoldenGate creates a private endpoint in one of your subnets and connects over port 1521. As mentioned above, you must add the appropriate subnet security rules to allow connectivity from the Ingress IPs addresses listed in the Connection Details page into the database node's private IP. Any FQDN provided must be resolvable within the selected subnet.

To connect to Autonomous Data Warehouse (ADW), OCI GoldenGate also creates a private endpoint over port 1522, unless you selected ‘Secure access from everywhere.’