What should a solutions architect ensure while setting up a publicly accessible web application?

In the context of setting up a publicly accessible web application, ensuring the use of a private database is a crucial security measure. A private database means that the database is not exposed directly to the internet, thereby limiting the potential attack surface. By restricting direct access to the database server, the solutions architect can help prevent unauthorized access and reduce the risk of data breaches.

Using a private database typically entails implementing a secure network architecture where the database resides in a secure segment of the network, accessible only by the application servers. This segmentation is vital for minimizing vulnerabilities since it isolates sensitive data from direct exposure. Additionally, it facilitates better control over data access and monitoring.

Implementing this practice aligns with the principle of least privilege, ensuring that only the necessary components of the application can communicate with the database, thereby enhancing the overall security posture of the publicly accessible web application.