Description: PAM-SQL is a module of the Pluggable Authentication Module (PAM) system designed specifically to facilitate user authentication in SQL databases. This module allows applications that use PAM to manage authentication more efficiently and securely, integrating database authentication with the operating system’s authentication system. PAM-SQL provides an interface that enables system administrators and developers to implement custom authentication policies using credentials stored in SQL databases. Among its main features are the ability to authenticate users through SQL queries, flexibility to adapt to different database management systems, and the possibility of integrating with other PAM modules to offer a more robust authentication solution. Its relevance lies in the growing need to manage database security in environments where data protection is critical, allowing organizations to implement stricter and more personalized access controls. PAM-SQL thus becomes an essential tool for those looking to enhance the security of their applications and systems that rely on SQL databases.