SSSD PAM responder service 'sssd-pam.service' fails to start

Solution Verified - Updated -

Issue

  • Intents to run SSSD as non-root user 1
  • Configured SSSD PAM Service responder to be a socket activated service 2
    • services=pam parameter is removed from sssd.conf
    • Socket units are enabled. i.e. systemctl enable sssd-pam.socket sssd-pam-priv.socket
  • Attempted to authenticate remote user
  • Socket activated service sssd-pam.service failed to start with error:
    sssd-pam.service: Main process exited, code=exited, status=2/INVALIDARGUMENT

  1. SSSD Docs: Running SSSD as a non-root user ↩︎

  2. SSSD Docs: Systemd Activatable Responders ↩︎

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • System Security Services Daemon (SSSD)

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