Create a centralized Authentication and Authorization token server
...Google Oauth - Easy to configure google login. Integrated Login & Cookie Management - Users are not just authenticated and authorized, they are re-directed on token expiration to login pages via the cookie system and sent back to the last location afterward.
OrgLDAP is an extensible LDAP user management application supporting groups, *NIX (POSIX, Shadow), Samba and other account types, SSH public keys and sudo roles. It includes a reusable extensible library and a web-based front-end.
TIAPS ( This Is A Python Server ) is a hosting program for dynamic websites, such as forums. The server and the data-access module are intended to be multifonctional and able to process various protocols on the same port. The access uses a login system.