Samba is a software suite that provides seamless file and print services to SMB/CIFS clients. It is freely available, unlike other SMB/CIFS implementations, and allows for interoperability between Linux/Unix servers and Windows-based clients.
LibreSSL Portable is a free version of the SSL/TLS protocol forked from OpenSSL, and developed by the OpenBSD project. LibreSSL is developed as part of the OpenBSD system, with lots of ancient cruft and security woes already fixed. The portable version for other Unices is developed alongside.
Tin is a powerful text mode news reader. It features threaded news reading, regex driven killfiles/message selections, pgp encryption, ispell support, and can read from both a local spool or from a remote NNTP server.
Manitou-Mail is a 3-part database-driven email system: a PostgreSQL database for the storage engine, a Perl daemon that does send/receive and customizable analysis/indexing of the mail, and a mailer-like user interface (C++/Qt) connected to the database. The general goal is to provide a database-style architecture to handle email, not just for storage but at the application level too. Fast and shared access, fine-tuned security, robust storage, consistent backups, auditing, statistics, and custo
Vortex Library is an implementation of the RFC 3080 and RFC 3081 standard definitions, known as the BEEP Core protocol, implemented on top of the TCP/IP stack. It comes with complete XML-RPC over BEEP RFC 3529 support, complete support for the TUNNEL profile (which allows you to perform proxy operations for every BEEP profile developed), support for HTTP proxies, and more. The API is consistent, easy to use, and allows you to write application protocols very quickly. The API is designed to allow
Postgrey is a Postfix policy server that implements greylisting. When a request for mail delivery is received by Postfix via SMTP, the triplet CLIENT_IP / SENDER / RECIPIENT is built. If it is the first time that this triplet is seen, or if the triplet was first seen less than 10 minutes ago, then the mail gets rejected with a temporary error. Hopefully, spammers or viruses will not try again later, even though such behavior is required per RFC.
The RedMatrix (aka "red") is an open source webapp providing a complete decentralised publishing, sharing, and communications system. It combines communications (private messaging, chat and social networking), and media management (photos, events, files, web pages, shareable apps) with enough features to make your head spin. What makes the RedMatrix unique is what we call "magic authentication" - which is based on our groundbreaking work in decentralised identity services. This ties all RedMa
The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, fully featured, and Open Source toolkit implementing the Secure Sockets Layer (SSLv2/v3) and Transport Layer Security (TLSv1) as well as a full-strength general-purpose cryptography library.
Z-Push is an implementation of the ActiveSync protocol which is used 'over-the-air' for multi platform ActiveSync devices, including Windows Mobile, Android, iPhone, Sony Ericsson and Nokia mobile devices. With Z-Push any groupware can be connected and synced with these devices.
The Zarafa Collaboration Platform is a Microsoft Exchange replacement. Zarafa provides an integration with an existing Linux mail server, native mobile phone support by ActiveSync compatibility and a WebApp with 'Look & Feel' similar to Outlook using Ajax. Including an IMAP and a POP3 gateway as well as an iCal/CalDAV gateway, Zarafa can combine the usability with the stability and the flexibility of a Linux server.
PolarSSL is a light-weight cryptographic and SSL/TLS library written in C. PolarSSL makes it easy for developers to include cryptographic and SSL/TLS capabilities in their (embedded) applications with as little hassle as possible. Loose coupling of the components inside the library means that it is easy to separate the parts that are needed, without needing to include the total library. PolarSSL is written with embedded systems in mind and has been ported on a number of architectures, including
BitlBee allows users to talk to people on the major instant messaging and microblogging networks (including MSN, Google Talk, AIM, and Twitter) from within any IRC client by emulating an IRC server. Virtual channels are created with all of the user's contacts in them, who can be talked to in the channel or in a query. Also, one can participate in group chats and chat rooms like they were normal IRC channels.