SSSD

SSSD (System Security Services Daemon) is a software component used in Linux systems to manage access to user authentication sources, such as directory services like LDAP or Active Directory. It securely connects and retrieves user credentials, enabling users to log in seamlessly across multiple systems with a single identity. SSSD handles tasks like user authentication, identity lookups, and credential caching, ensuring efficient and consistent login experiences while maintaining security. It simplifies managing user accounts and permissions across complex network environments, integrating different authentication services into a centralized system.