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)
OpenWrt is a Linux distribution mainly for embedded devices.
Instead of trying to create a single, static firmware, OpenWrt provides a writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize
... [More] the device through the use of packages to suit any application. [Less]
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] with a WPA Authenticator and it controls the roaming and IEEE 802.11 authentication/association of the wlan driver.
wpa_supplicant is designed to be a "daemon" program that runs in the background and acts as the backend component controlling the wireless connection. wpa_supplicant supports separate frontend programs and a text-based frontend (wpa_cli) and a GUI (wpa_gui) are included with wpa_supplicant. [Less]
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, Windows, Mac OS X, FreeBSD, NetBSD and OpenBSD and needs a TUN/TAP device. The
... [More] bandwidth is assymetrical with limited upstream and up to 1 Mbit/s downstream. [Less]
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], integration with the Snort IDS and the Nessus vulnerability scanner; PacketFence can be used to effectively secure networks - from small to very large heterogeneous networks. [Less]
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] 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 fingerprints (active or passive) to let you know the geometry of the LAN. [Less]
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 a complete suite of tools to assess WiFi network security.
It focuses on different areas of WiFi security:
- Monitoring: Packet capture and export of data to text files for further processing by third party tools
- Attacking: Replay attacks, deauthentication, fake access points
... [More] and others via packet injection
- Testing: Checking WiFi cards and driver capabilities (capture and injection)
- Cracking: WEP and WPA PSK (WPA 1 and 2)
All tools are command line which allows for heavy scripting. A lot of GUIs have taken advantage of this feature. It works primarily Linux but also Windows, OS X, FreeBSD, OpenBSD, NetBSD, as well as Solaris and even eComStation 2. [Less]
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.
Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system. Kismet will work with any wireless card which supports raw monitoring (rfmon) mode, and can sniff 802.11b, 802.11a, and 802.11g traffic.
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