Linux Softwares to Single Sign-On

Zentyal is a comprehensive open source server solution based on Ubuntu, providing critical network services such as email, groupware, file sharing, and network infrastructure roles like directory services and gateway functions, all managed through an intuitive web interface.

ClearOS is a robust Linux distribution serving as a comprehensive server solution for small to medium-sized businesses. It provides a unified platform for networking, gateway, and server functions with a user-friendly web-based interface.

YunoHost is a Debian-based open-source operating system designed for automating the installation and management of self-hosted web servers and applications. It simplifies the process of running your own internet services at home or on a small server.