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Wireshark is very similar to tcpdump, but has a graphical front-end and integrated sorting and filtering options.. Wireshark lets the user put network interface controllers into promiscuous mode (if supported by the network interface controller), so they can see all the traffic visible on that interface including unicast traffic not sent to that network interface controller's MAC address.
On wireless LANs, traffic can be captured on one channel at a time, or by using multiple adapters, on several channels simultaneously. On wired broadcast and wireless LANs, to capture unicast traffic between other machines, the network adapter capturing the traffic must be in promiscuous mode.
EtherApe, a graphical tool for monitoring network traffic and bandwidth usage in real time. Firesheep, a discontinued extension for the Firefox web browser that captured packets and performed session hijacking; iftop, a tool for displaying bandwidth usage (like top for network traffic) Kismet, for 802.11 wireless LANs
Free Microsoft Message Analyzer Microsoft: October 28, 2016 / 1.4 [9] GUI Proprietary: Free Microsoft Network Monitor: Microsoft: June 24, 2010 / 3.4 GUI Proprietary: Free netsniff-ng: Daniel Borkmann November 7, 2016 / 0.6.2 CLI: GNU General Public License: Free ngrep: Jordan Ritter September 7, 2017 / 1.47 CLI: BSD-style Free Observer
tcpdump is a data-network packet analyzer computer program that runs under a command line interface. It allows the user to display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. [3] Distributed under the BSD license, [4] tcpdump is free software.
A packet capture appliance is a standalone device that performs packet capture. [1] Packet capture appliances may be deployed anywhere on a network, however, most commonly are placed at the entrances to the network (i.e. the internet connections) and in front of critical equipment, such as servers containing sensitive information.
Troubleshooting network devices that use network clients (devices that "phone home" via UDP, TCP, or SSL—Packet Sender can capture these requests) Testing and development of new network protocols (send a packet, see if device behaves appropriately) Reverse-engineering network protocols for security analysis (such as malware)
Nmap is used for network reconnaissance and exploitation of the slum tower network. It is even seen briefly in the movie's trailer. The command Nmap is widely used in the video game Hacknet , allowing to probe the network ports of a target system to hack it.