Open Source Linux Authentication Software

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Browse free open source Authentication software and projects for Linux below. Use the toggles on the left to filter open source Authentication software by OS, license, language, programming language, and project status.

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  • 1

    DACS - Distributed Access Control System

    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
    Downloads: 1 This Week
    Last Update:
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  • 2
    OpenID is a decentralized authentication protocol for web applications. OpenID users need share credentials with only one OpenID provider, and not every forum and network they log on to. This leads to a safer and more convenient Web. http://openid.net/
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    A Plugin for Sympa.org the mailing list manager. This plugin is an authentification engine with LemonLDAP.org(a sf.net project).
    Downloads: 0 This Week
    Last Update:
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  • 4
    A C# module to allow ASP.Net sites to easily use the TypeKey authentication service.
    Downloads: 0 This Week
    Last Update:
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  • 5
    CAILogin (Counter AI Login) is an image-based user verification program for web-page logins. It's written in plain C with no special dependencies, and hence it's very suitable for embedded systems which lack "big" interpreted languages, such as PHP.
    Downloads: 0 This Week
    Last Update:
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  • 6
    CGIgen is a collection of classes that are useful in data-encapsulation esp. for CGI-scripts. It also includes other classes that may be helpful in writing CGI-scripts.
    Downloads: 0 This Week
    Last Update:
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  • 7
    A user friendly password changing website that allows the user to synchronize their password across several different systems, and then, once synced, change them all at once. Supports OpenLDAP and Active Directory.
    Downloads: 0 This Week
    Last Update:
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  • 8
    A Perl CGI JavaScript framework for implementing a MD5 based encryption Secure login on both client and server machines. The password is never stored or transmitted as plain text. Also encrypts cookies to maintain sessions.
    1 Review
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    A session based authentication script for perl CGI. Perl SecurePages, a.k.a. PSBAS, was written to authenticate users on a session basis as a means of securing CGI applications written in perl.
    Downloads: 0 This Week
    Last Update:
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    Easy-to-Use Website Accessibility Widget

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  • 10
    An ISP-class utility to allow FTP account holders to change their password independently using a web browser. Written in Python and Works with PureFTPd-MySQL servers where the PureFTPd FTP server uses a MySQL database for user authentication.
    Downloads: 0 This Week
    Last Update:
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  • 11
    babel.lib is Babel Com Australia's PHP Components Library, which we are releasing under an open source license for other PHP developers.
    Downloads: 0 This Week
    Last Update:
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  • 12
    XSDB XML is to DATA as HTML is to DOCUMENT. Publish and combine data as easily as HTML format and web browsers publish and view documents. Implementations in Python, javascript, java, C#/.NET.
    Downloads: 0 This Week
    Last Update:
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