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Wireshark is the world's foremost network protocol analyzer, and is the de facto (and often de jure) standard across many industries and educational institutions. (Wireshark was known as Ethereal until June 09, 2006)
wpa_supplicant is a WPA Supplicant for Linux, BSD, and Windows with support for WPA and WPA2 (IEEE 802.11i / RSN). It is suitable for both desktop/laptop computers and embedded systems. Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation ... [More]
OpenWrt is described as a Linux distribution for embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to ... [More]
This is a piece of software that lets you tunnel IPv4 data through a DNS server. This can be usable in different situations where internet access is firewalled, but DNS queries are allowed. It runs on Linux, Mac OS X, FreeBSD, NetBSD and OpenBSD and needs a TUN/TAP device. The bandwidth is ... [More]
PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) system. Boasting an impressive feature set including a captive-portal for registration and remediation, centralized wired and wireless management, 802.1X support, layer-2 isolation of problematic devices ... [More]
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 ... [More]
Some vendors refuses to release specs or even a binary Linux driver for their WLAN cards. ndiswrapper tries to solve this by making a kernel module that can load Ndis (Windows network driver API) drivers. The goal is not to implement all of the Ndis API, but to implement the functions needed to get cards without Linux drivers to work.
Aircrack-ng is an 802.11 WEP and WPA-PSK keys cracking program that can recover keys once enough data packets have been captured. It implements the standard FMS attack along with some optimizations like KoreK attacks, thus making the attack much faster compared to other WEP cracking tools. In fact ... [More]
Wicd is an open source wired and wireless network manager for Linux which aims to provide a simple interface to connect to networks with a wide variety of settings.
pfSense is a free, open source customized distribution of FreeBSD tailored for use as a firewall and router. In addition to being a powerful, flexible firewalling and routing platform, it includes a long list of related features and a package system allowing further expandability without adding ... [More]