The Interplanetary Overlay Network (ION) software distribution is an implementation of Delay-Tolerant Networking (DTN) architecture as described in Internet RFC 4838. It includes implementations of the DTN Bundle Protocol, the Licklider Transmission Protocol, and two CCSDS application protocols that have been adapted to run over the BP/LTP stack: the CCSDS File Delivery Protocol and Asynchronous Message Service.
PyMQI is a Python library for working with WebSphere MQ (formerly known as MQSeries) implementing MQI and PCF protocols. It allows one to connect to queues, put, browse, get messages, and to programmatically administer MQ objects. PyMQI has been used in production environments for several years and is known to work on Linux, Windows, Solaris, AIX, and HP-UX with queue managers running on Linux, Windows, Solarix, AIX, HP-UX, and z/OS mainframe.
HATop is an interactive ncurses client and real-time monitoring and statistics displaying tool for the HAProxy TCP/HTTP load balancer. HATop's appearance is similar to top(1). It supports various modes for detailed statistics of all configured proxies and services in near real-time. In addition, it features an interactive CLI for the HAProxy Unix socket. This allows administrators to control the given HAProxy instance (change server weight, put servers into maintenance mode, etc.) directly out of HATop (using keybinds or the CLI) and monitor the results immediately.
pppd-sql is a plugin for the Point-to-Point server (pppd) on Linux and Solaris that adds an authentication backend using a MySQL or PostgreSQL database for the Challenge Handshake Authentication Protocol (CHAP) and Password Authentication Protocol (PAP). It supports MS-CHAPv1 and MS-CHAPv2 too. The IPCP negotiation after authentication handshake is also supported. pppd-sql supports a flexible configuration scheme, has concurrent connection handling for single users across multiple tunnel servers, and comes with easy and handy documentation.
libmsocket is a socket abstraction library in C, which aims to support as many protocol abstractions transparently as possible. Current goals include SSL and Socks5 proxies. At its core, libmsocket makes developing socket applications very easy, even if you're not using any of those abstractions at all. It also ties in to libevent for I/O multiplexing and asynchronous DNS resolution.
Yet Another Flowmeter (YAF) is a tool for network flow capture, primarily designed to operate efficiently on white box hardware and generate IPFIX flow records. It is designed to operate primarily on Unix-based systems (including Mac OS X), and is supported by the Network Situational Awareness team at CERT.