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Cookie based web authentication and single sign on system for largish intranets under a single domain where many, untrusted, people run their own web services. The server uses a private cookie scoped only for the client browser and the idcheck webserver which is always protected with SSL.
In addition to the common practise of using SSL for everything (which idcheck supports). The idcheck system can also be used to provide authentication to websites where you merely want to hide content...
Authentication, Access Control, and Single Sign-On
DACS,a light-weight single sign-on and role-based security system for Apache or server-based software, provides comprehensive authentication capabilities, and powerful, transparent rule-based authorization checking for any web service or CGI program.
The latest release is DACS 1.5.1 (26-Oct-2025)
It is not available here!
Get it at https://dacs.dss.ca/download.html
Moved to github, https://github.com/jamiesonbecker/pam_redirector
Moved to github, https://github.com/jamiesonbecker/pam_redirector
A pluggable authentication module (PAM) that allows redirection of login credentials to a local UNIX stream socket server and includes an example 33-line simple socket server (written in Python) just to show how easy it is to do this redirection.