4 Using the System Security Services Daemon

The System Security Services Daemon (SSSD) feature provides a client system with access to remote identity and authentication providers. The SSSD acts as an intermediary between local clients and any backend provider that you configure.

The benefits of using SSSD include:

• Reduced system load: Clients don't have to contact the identification or authentication servers directly.

• Offline authentication: You can configure SSSD to maintain a cache of user identities and credentials.

• Single sign-on: If you configure SSSD to store network credentials, users only need to authenticate a single time per session with the local system to access network resources.

The SSSD service is installed and enabled automatically in Oracle Linux. The default configuration uses the Pluggable Authentication Modules (PAM) and the Name Service Switch (NSS) for managing system access and authentication. No further configuration is required, unless you want to use different authentication services or customize the configuration.

See https://sssd.io/ for more information about SSSD.