RazDC
Active Directory Domain Controller built on CentOS and Samba4.
15 Alternatives To RazDC
CAS
Apereo CAS - Enterprise Single Sign On for the Web
ClearOS
A very good alternative for Windows Server, for free
Foxpass
Foxpass manages users, groups, and SSH keys (plus a LDAP and RADIUS interfaces) to increase an organization’s server and network security.
FreeIPA
FreeIPA is an integrated security information management solution combining Linux (Fedora), 389…
NetIQ Identity Manager
NetIQ Identity Manager offers a comprehensive solution for provisioning identities and controlling access.
NethServer
NethServer is an operating system for Linux enthusiasts, designed for small offices and medium…
OAuth
OAuth is an open standard for authorization. It allows users to share their private resources (e.g.
Okta
Enterprise-grade identity management for all your apps, users & devices
OpenLDAP
OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol.
Samba
Samba serves as an open source alternative to the traditional domain controller offered by Microsoft.
Stormpath
Powerful authentication, authorization, and user management for any application
Univention Corporate Server
Univention Corporate Server UCS with Active Directory functions and App Center is the cost-efficient and popular successor to Microsoft’s server solutions.
Untangle
Untangle is a platform for deploying network based applications.
Zentyal
Linux directory, domain, mail, gateway and infrastructure server for SMBs.