monit is a utility for managing and monitoring, processes, files, directories and devices on a UNIX system. monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.

Ettercap is a network sniffer/interceptor/logger for ethernet LANs. It supports active and passive dissection of many protocols (even ciphered ones, like SSH and HTTPS). Data injection in an established connection and filtering on the fly is also possible, keeping the connection synchronized. Many sniffing modes were implemented to give you a powerful and complete sniffing suite. Plugins are supported. It has the ability to check whether you are in a switched LAN or not, and to use OS fingerprin...

Firestarter is a firewall tool for Linux, and uses GNOME. You can use the wizard to create a basic firewall, then streamline it further using the dynamic rules. You can open and close ports with a few clicks, or stealth your services giving access only to a select few. It features a real-time hit monitor which you can watch as attackers probe your machine for open ports.

Pandora FMS is a monitoring system for big IT environments. It uses remote tests, or local agents to grab information. Pandora supports all standard OS (Linux, AIX, HP-UX, Solaris and Windows XP,2000/2008), and support multiple setups in HA enviroments.

AIDE (Advanced Intrusion Detection Environment) is a free replacement for Tripwire(tm). It generates a database that can be used to check the integrity of files on server. It uses regular expressions for determening which files get added to the database. You can use several message digest algorithms to ensure that the files have not been tampered with.

This is PEWIT, Polling Enlightens WIreless neTworks. It serves a so-called "Polling Method" to solve the hidden station problem in wireless networks.

Thanks to this scheduling algorithm, no packet collision will occur in theory. So, PEWIT makes outdoor wireless networks more efficient.

FAM provides an API applications can use to be notified when specific files or directories are changed.

Kaboodle is an application which delivers a number of essential services useful to any small LAN administrator, including LAN visualization, remote control, file-transfer, and a personal-VPN capability to securely connect two LANs together.

LineControl allows you to remotely control the internet connection of a linux masquerading server from multiple clients. It takes care with the number of clients using the connection and decides upon this number whether the connection should be up or dow