The GNU Gatekeeper is a free H.323 gatekeeper based on the OpenH323 project. You can use it to manage a Voice-over-IP network and let endpoints (e.g., Netmeeting) communicate through symbolic names. It also has an external interface for billing and other applications. It runs on a number of Unix versions (including Linux and Solaris) and Windows.
The CyaSSL embedded SSL library is a lightweight SSL library written in ANSI C and targeted for embedded and RTOS environments, primarily because of its small size, speed, and feature set. It is commonly used in standard operating environments and cloud services as well because of its royalty-free pricing and excellent cross platform support. CyaSSL supports industry standards up to the current TLS 1.2 and DTLS 1.2 levels, is up to 20 times smaller than OpenSSL, and offers progressive ciphers such as HC-128, RABBIT, and NTRU.
netconf is a tool designed to replace Debian's ifupdown in a backwards-compatible manner while aiming for maximum extensibility and flexibility. While it can read existing interfaces files and execute hooks in much the same way, it ties in closer with aspects of network configuration that have become more and more important in the past decade: link and location autodetection, including a framework to configure printers, smarthosts, proxies, etc.; zeroconf; wireless LAN configuration; VPN; firewalling; advanced routing and traffic control; and more.
RapidInsight is an integration, automation, and presentation suite for IT operations management. It brings the leading Web technologies into the IT management field, designed from the ground up as an open solution to minimize implementation time and the total cost of ownership and to maximize skill reuse. RapidInsight is typically used to integrate management information such as events, inventory, and tickets from disparate management systems and present to users through a simple, unified, consistent Web based user interface.
Pymailheaders is a small GTK+ program which displays mail headers in your mail box. It is an innovation of xmailheaders, with a few more handy features like new mail highlighting, multi-language support, lauching regardless of network connection status, and auto-reconnecting. IMAP4 and POP3 protocols and XML feeds (including Gmail) are supported.
ipt_pkd is an iptables extension implementing port knock detection with SPA (single packet authorization). This project provides 3 parts: the kernel module ipt_pkd, the iptables user space module libipt_pkd.so, and a user space client knock program. For the knock packet, it uses a UDP packet sent to a random port that contains a SHA-256 of a timestamp, small header, random bytes, and a shared key. ipt_pkd checks the time window of the packet and does the SHA-256 to verify the packet. The shared key is never sent.
sc-tool is a commandline tool intended to simplify administration of traffic shapers for Internet Service Providers. It features fast loading of large rulesets using batch modes of tc and ipset, loading of information from any SQL database supported by Perl DBI, a batch command execution mode, and synchronization of rules with databases.
yaSSL is a C++ based SSL library for embedded and RTOS environments, designed for individuals who prefer to use the C++ language. For a C-based solution, please see CyaSSL. yaSSL supports the industry standards up to TLS 1.2, and also includes an OpenSSL compatibility interface.