sssd 1.15.2-1ubuntu1 (amd64 binary) in ubuntu zesty

 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.