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  2. Nmap - Wikipedia

    en.wikipedia.org/wiki/Nmap

    These features are extensible by scripts that provide more advanced service detection, [7] vulnerability detection, [7] and other features. Nmap can adapt to network conditions including latency and congestion during a scan. Nmap started as a Linux utility [8] and was ported to other systems including Windows, macOS, and BSD. [9]

  3. Service scan - Wikipedia

    en.wikipedia.org/wiki/Service_scan

    A service scan of that device will be able to determine that the port is open and that it is a web service. Service scanners can be set to target a single device, but they are more often set to target a large number of devices. For example, a service scanner may be configured to scan a subnet.

  4. Network enumeration - Wikipedia

    en.wikipedia.org/wiki/Network_enumeration

    Network enumeration is the discovery of hosts or devices on a network. Network enumeration tends to use overt discovery protocols such as ICMP and SNMP to gather information. It may also scan various ports on remote hosts for looking for well known services in an attempt to further identify the function of a remote host.

  5. TCP/IP stack fingerprinting - Wikipedia

    en.wikipedia.org/wiki/TCP/IP_stack_fingerprinting

    Nmap – comprehensive active stack fingerprinting. p0f – comprehensive passive TCP/IP stack fingerprinting. NetSleuth – free passive fingerprinting and analysis tool; PacketFence [9] – open source NAC with passive DHCP fingerprinting. Satori – passive CDP, DHCP, ICMP, HPSP, HTTP, TCP/IP and other stack fingerprinting.

  6. ZMap (software) - Wikipedia

    en.wikipedia.org/wiki/ZMap_(software)

    ZMap also speeds up the scanning process by sending a probe to every IP address only once by default, whereas Nmap resends a probe when it detects a connection delay or fails to get a reply. [8] This results in about 2% of IP addresses being missed during a typical scan, but when processing billions of IP address, or potential IoT devices being ...

  7. Idle scan - Wikipedia

    en.wikipedia.org/wiki/Idle_scan

    Performing a port scan and OS identification (-O option in nmap) on the zombie candidate network rather than just a ping scan helps in selecting a good zombie. As long as verbose mode (-v) is enabled, OS detection will usually determine the IP ID sequence generation method and print a line such as “IP ID Sequence Generation: Incremental”.

  8. Banner grabbing - Wikipedia

    en.wikipedia.org/wiki/Banner_grabbing

    Banner grabbing is a technique used to gain information about a computer system on a network and the services running on its open ports. Administrators can use this to take inventory of the systems and services on their network.

  9. hping - Wikipedia

    en.wikipedia.org/wiki/Hping

    hping is an open-source packet generator and analyzer for the TCP/IP protocol created by Salvatore Sanfilippo (also known as Antirez). It is one of the common tools used for security auditing and testing of firewalls and networks, and was used to exploit the idle scan scanning technique (also invented by the hping author), and now implemented in the Nmap Security Scanner.