publiclyAccessible

Indicates whether the DB cluster is publicly accessible.

When the DB cluster is publicly accessible and you connect from outside of the DB cluster's virtual private cloud (VPC), its Domain Name System (DNS) endpoint resolves to the public IP address. When you connect from within the same VPC as the DB cluster, the endpoint resolves to the private IP address. Access to the DB cluster is ultimately controlled by the security group it uses. That public access isn't permitted if the security group assigned to the DB cluster doesn't permit it.

When the DB cluster isn't publicly accessible, it is an internal DB cluster with a DNS name that resolves to a private IP address.

For more information, see CreateDBCluster.

This setting is only for non-Aurora Multi-AZ DB clusters.