What is required to configure a Bastion host in OCI?

To configure a Bastion host in Oracle Cloud Infrastructure (OCI), it is crucial to have a Compute instance with the appropriate Identity and Access Management (IAM) policies. The Bastion host serves as a secure entry point into a Virtual Cloud Network (VCN), allowing users to connect to various resources without exposing them directly to the internet.

Using a Compute instance enables you to leverage the capabilities of OCI to create a manageable and secure Bastion host. The proper IAM policies ensure that only authorized users can access the Bastion host, thereby enhancing security and compliance within the environment. These policies govern the permissions related to network access, making it essential for managing who can log in and how they can interact with other resources in the network.

Other options like a dedicated network interface card, a VPN connection setup, or a database instance connection are not prerequisites for creating a Bastion host. While networking and security aspects are certainly involved in a complete setup, the fundamental requirement is to have a Compute instance configured with the right IAM policies to facilitate secured access.