The WiKID Strong Authentication System is a highly scalable, secure two-factor authentication system. It is simple to implement and maintain, allows users to be validated automatically, requires no hardware tokens, has a simple API for application support (via Ruby, PHP, Java, COM, Python, etc.), supports multiple domains, and supports replication for fault tolerance and scalability. It also supports mutual /host and transaction authentication, wireless tokens only domains, locked tokens (to your PC), anti-keystroke logger keypad PIN entry, etc.
Snort is a network intrusion detection and prevention system. It is the most widely deployed technology of its kind in the world. It performs detection using a variety of methods including rules-based detection, anomaly detection, and heuristic analysis of network traffic. Its rules language is open source and available to the public as well.
isdn4net is a collection of scripts and configuration files to help you run isdn4linux. It is designed for fast setup of a simple dialout to one ISP, but may also be used for management of complex setups. It is intended for Mandrake systems, but if there is interest, it could be adapted to others as well.
P-Synch is a commercial password management toolkit which provides automated password synchronization, password strength enforcement, password self-reset by authenticated users, and streamlined password reset by helpdesk. P-Synch is available for both internal use as well as for Internet-based deployments in B2B and B2C applications.
Multidialnet is a curses-based tool that runs on a machine that hosts a shared dial-up Internet connection. This program will not only allow users to make the connection, but also log the usage and work out how much the phone call cost. It should work equally well with any sort of non-permanent connection - not just analogue modems.
Network Time Tools (NTT) is a set of network tools designed to provide monitoring of a network and the services on that network, and provide various reports on the hosts/services and optional alerts via email, pager, and cellphones. It comes with a protocol scanner, a bandwidth measurement tool, and a CGI front end that can handle a regular browser or WAP-enabled cellphones via WML.