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  2. Nmap - Wikipedia

    en.wikipedia.org/wiki/Nmap

    Nmap can provide further information on targets, including reverse DNS names, device types, and MAC addresses. [13] Typical uses of Nmap: Auditing the security of a device or firewall by identifying the network connections which can be made to, or through it. [14] Identifying open ports on a target host in preparation for auditing. [15]

  3. MAC address - Wikipedia

    en.wikipedia.org/wiki/MAC_address

    The Individual Address Block (IAB) is an inactive registry which has been replaced by the MA-S (MAC address block, small), previously named OUI-36, and has no overlaps in addresses with the IAB [6] registry product as of January 1, 2014. The IAB uses an OUI from the MA-L (MAC address block, large) registry, previously called the OUI registry.

  4. Address Resolution Protocol - Wikipedia

    en.wikipedia.org/wiki/Address_Resolution_Protocol

    The Address Resolution Protocol (ARP) is a communication protocol for discovering the link layer address, such as a MAC address, associated with a internet layer address, typically an IPv4 address. The protocol, part of the Internet protocol suite , was defined in 1982 by RFC 826 , which is Internet Standard STD 37.

  5. Network security - Wikipedia

    en.wikipedia.org/wiki/Network_security

    Active Port scanner – Application designed to probe for open ports; DNS spoofing – Cyberattack using corrupt DNS data; Man in the middle – Form of message tampering; ARP poisoning – Cyberattack which associates the attacker's MAC address with the IP address of another host

  6. Reserved IP addresses - Wikipedia

    en.wikipedia.org/wiki/Reserved_IP_addresses

    Used for loopback addresses to the local host [1] 169.254.0.0/16 169.254.0.0–169.254.255.255 65 536: Subnet Used for link-local addresses [5] between two hosts on a single link when no IP address is otherwise specified, such as would have normally been retrieved from a DHCP server 172.16.0.0/12 172.16.0.0–172.31.255.255 1 048 576: Private ...

  7. Deep packet inspection - Wikipedia

    en.wikipedia.org/wiki/Deep_packet_inspection

    Deep Packet Inspection (and filtering) enables advanced network management, user service, and security functions as well as internet data mining, eavesdropping, and internet censorship. Although DPI has been used for Internet management for many years, some advocates of net neutrality fear that the technique may be used anticompetitively or to ...

  8. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    Historically used for Interface Message Processor logical address management, [35] entry has been removed by IANA on 2013-05-25 52: Assigned: Xerox Network Systems (XNS) Time Protocol. Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP. [36] 53: Yes: Domain Name System (DNS ...

  9. Idle scan - Wikipedia

    en.wikipedia.org/wiki/Idle_scan

    IP is the primary protocol in the Internet Layer of the Internet Protocol Suite and has the task of delivering datagrams from the source host to the destination host solely based on their addresses. For this purpose, IP defines addressing methods and structures for datagram encapsulation. It is a connectionless protocol and relies on the ...