What role does a bastion host play in cloud networking?

A bastion host acts as a security checkpoint in cloud networking, serving as a critical line of defense against unauthorized access. It is a specially configured server that is deployed in a demilitarized zone (DMZ) and is designed to provide a controlled environment for access to internal services while minimizing the risk of external attacks.

This host typically runs services that are exposed to the internet, allowing external users to connect only through specific protocols such as SSH or RDP. Once inside the bastion host, users can then securely access other internal resources. By acting as a middleman, it helps enforce security policies and limit potential exposure to vulnerabilities, as it can be tightly monitored and controlled.

In contrast, options like database management, load balancing, or monitoring tools do not align with the primary purpose of a bastion host, which is specifically focused on providing secure access and safeguarding the internal network from threats posed by external entities.