A spec compliant, secure by default
Identity & Single Sign On for all earthlings and beyond
FIDO® Certified StrongKey FIDO Server (SKFS)
PHP strong authentication library, web interface & CLI, OATH certified
Jupyter server extension to proxy requests with AWS SigV4 authentican
Zentyal is a Linux Small Business Server
apache cookie SSO mechanism.
Two-factor authentication system
Deprecated project - see http://wordpress.org/extend/plugins/wpmuldap/