Install sssd by entering the following commands in the terminal:
sudo apt update sudo apt install sssd
Description:
System Security Services Daemon -- metapackage
Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable backend system to connect to multiple different account sources. It is also the basis to provide client auditing and policy services for projects like FreeIPA. . This package is a metapackage which installs the daemon and existing authentication back ends.
Homepage: https://pagure.io/SSSD/sssd/
Version: 1.16.1-1ubuntu1
Section: utils