Oracle Cloud Infrastructure Bastion session provides restricted and time-limited access to target resources that do not have public endpoints.
Bastion sessions let authorized users connect from specific IP addresses to target resources using Secure Shell (SSH) sessions. When you connect using a Bastion session, you can interact with the target resource by using any software or protocol supported by SSH. For example, you can use the Remote Desktop Protocol (RDP) to connect to a Windows host, or use Oracle Net Services to connect to a database. Bastions also allow connections to MySQL DB systems.