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Distributed Access Control System
Initial release
2005; 19 years ago (2005)
Stable release
1.4.50
/ July 22, 2023; 10 months ago (2023-07-22)
Written in
C with APIs for some other languages
Operating system
FreeBSD, Linux, macOS
Available in
English
Type
Computer security
License
Modified Sleepycat License
Website
dacs.dss.ca
Distributed Access Control System (DACS)[1] is a light-weight single sign-on and attribute-based access control system for web servers and server-based software. DACS is primarily used with Apache web servers to provide enhanced access control for web pages, CGI programs and servlets, and other web-based assets, and to federate
Apache servers.
Released under an open-source license, DACS provides a modular authentication framework that supports an array of common authentication methods and a rule-based authorization engine that can grant or deny access to resources, named by URLs, based on the identity of the requestor and other contextual information. Administrators can configure DACS to identify users by employing authentication methods and user accounts already available within their organization. The resulting DACS identities are recognized at all DACS jurisdictions that have been federated.
In addition to simple web-based APIs, command-line interfaces are also provided to much of the functionality.
Most web-based APIs can return XML or JSON documents.
Development of DACS began in 2001, with the first open source release made available in 2005.
^"DACS: The Distributed Access Control System".
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