Article · Wikipedia archive · Last revised Jul 13, 2026

System Security Services Daemon

The System Security Services Daemon (SSSD) is software originally developed for the Linux operating system (OS) that provides a set of daemons to manage access to remote directory services and authentication mechanisms. The beginnings of SSSD lie in the open-source software project FreeIPA. The purpose of SSSD is to simplify system administration of authenticated and authorised user access involving multiple distinct hosts. It is intended to provide single sign-on capabilities to networks based on Unix-like OSs that are similar in effect to the capabilities provided by Microsoft Active Directory Domain Services to Microsoft Windows networks.

Last revised
Jul 13, 2026
Read time
≈ 1 min
Length
177 w
Citations
5
Source
Wikipedia ↗
SSSD
Other namesSystem Security Services Daemon
ReleaseDecember 18, 2009 (2009-12-18)
Stable release
2.12.0 / January 15, 2026 (2026-01-15)
Written inC
LicenseGPLv3
Websitesssd.io
Repositorygithub.com/SSSD/sssd

The System Security Services Daemon (SSSD) is software originally developed for the Linux operating system (OS) that provides a set of daemons to manage access to remote directory services and authentication mechanisms.1 The beginnings of SSSD lie in the open-source software project FreeIPA (Identity, Policy and Audit).2 The purpose of SSSD is to simplify system administration of authenticated and authorised user access involving multiple distinct hosts.34 It is intended to provide single sign-on capabilities to networks based on Unix-like OSs that are similar in effect to the capabilities provided by Microsoft Active Directory Domain Services to Microsoft Windows networks.5

References

References

  1. "13.2. Using and Caching Credentials with SSSD". access.redhat.com. Retrieved 2016-09-12.
  2. Lawrence Kearney (2014). "Introducing SSSD: You Should See Polyscheme PAM" (PDF). OPEN HORIZONS MAGAZINE [Archive]. No. 27. pp. 28–34.
  3. "Features/SSSD - FedoraProject". fedoraproject.org. Retrieved 2024-01-16.
  4. "SSSD on Ubuntu". ubuntu.com. Retrieved 2024-01-16.
  5. "SSSD vs Winbind – Red Hat Enterprise Linux Blog". rhelblog.redhat.com. Retrieved 2016-09-12.
External links