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  2. tcpdump - Wikipedia

    en.wikipedia.org/wiki/Tcpdump

    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.

  3. pcap - Wikipedia

    en.wikipedia.org/wiki/Pcap

    Symantec Data Loss Prevention, Used to monitor and identify sensitive data, track its use, and location. Data loss policies allow sensitive data to be blocked from leaving the network or copied to another device. tcpdump, a tool for capturing and dumping packets for further analysis, and WinDump, the Windows port of tcpdump.

  4. ngrep - Wikipedia

    en.wikipedia.org/wiki/Ngrep

    ngrep (network grep) is a network packet analyzer written by Jordan Ritter.It has a command-line interface, and relies upon the pcap library and the GNU regex library.. ngrep supports Berkeley Packet Filter logic to select network sources or destinations or protocols, and also allows matching patterns or regular expressions in the data payload of packets using GNU grep syntax, showing packet ...

  5. Wireshark - Wikipedia

    en.wikipedia.org/wiki/Wireshark

    Wireshark uses pcap to capture packets, so it can only capture packets on the types of networks that pcap supports. Data can be captured "from the wire" from a live network connection or read from a file of already-captured packets. Live data can be read from different types of networks, including Ethernet, IEEE 802.11, PPP, and loopback.

  6. netcat - Wikipedia

    en.wikipedia.org/wiki/Netcat

    netcat (often abbreviated to nc) is a computer networking utility for reading from and writing to network connections using TCP or UDP. The command is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool ...

  7. Packet analyzer - Wikipedia

    en.wikipedia.org/wiki/Packet_analyzer

    Packet capture is the process of intercepting and logging traffic. As data streams flow across the network, the analyzer captures each packet and, if needed, decodes the packet's raw data, showing the values of various fields in the packet, and analyzes its content according to the appropriate RFC or other specifications.

  8. p0f - Wikipedia

    en.wikipedia.org/wiki/P0f

    Signatures used for packet inspection are stored in a simple text file. [2] This allows them to be modified without recompiling p0f. The user is allowed to use a different fingerprinting file by selecting another one at run time. p0f does not use a graphical user interface: it is run from the command line prompt.

  9. netsniff-ng - Wikipedia

    en.wikipedia.org/wiki/Netsniff-ng

    netsniff-ng is a free Linux network analyzer and networking toolkit originally written by Daniel Borkmann. Its gain of performance is reached by zero-copy mechanisms for network packets (RX_RING, TX_RING), [3] so that the Linux kernel does not need to copy packets from kernel space to user space via system calls such as recvmsg().