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  2. IP address - Wikipedia

    en.wikipedia.org/wiki/IP_address

    An Internet Protocol address (IP address) is a numerical label such as 192.0.2.1 that is assigned to a device connected to a computer network that uses the Internet Protocol for communication. [1] [2] IP addresses serve two main functions: network interface identification, and location addressing.

  3. Transmission Control Protocol - Wikipedia

    en.wikipedia.org/wiki/Transmission_Control_Protocol

    The pseudo-header consists of the source IP address, the destination IP address, the protocol number for the TCP protocol (6) and the length of the TCP headers and payload (in bytes). Urgent Pointer: 16 bits If the URG flag is set, then this 16-bit field is an offset from the sequence number indicating the last urgent data byte.

  4. Computer network - Wikipedia

    en.wikipedia.org/wiki/Computer_network

    Network services such as Domain Name System (DNS) give names for IP and MAC addresses (people remember names like nm.lan better than numbers like 210.121.67.18), [73] and Dynamic Host Configuration Protocol (DHCP) to ensure that the equipment on the network has a valid IP address.

  5. traceroute - Wikipedia

    en.wikipedia.org/wiki/Traceroute

    Traceroute is used by penetration testers to gather information about network infrastructure and IP address ranges around a given host. Traceroute can be used to optimize data download. If there are multiple mirrors available for the same resource, each mirror can be traced to find the fastest.

  6. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    WinFS—Windows Future Storage; WinRT—Windows RunTime; WINS—Windows Internet Name Service; WLAN—Wireless Local Area Network; WMA—Windows Media Audio; WMI—Windows Management Instrumentation; WMV—Windows Media Video; WNS—Windows Push Notification Service; WOL—Wake-on-LAN; WOR—Wake-on-Ring; WORA—Write once, run anywhere

  7. NTLM - Wikipedia

    en.wikipedia.org/wiki/NTLM

    Up to and including Windows XP, this used either 40- or 56-bit encryption on non-U.S. computers, since the United States had severe restrictions on the export of encryption technology at the time. Starting with Windows XP SP3, 128-bit encryption could be added by installing an update and on Windows 7, 128-bit encryption would be the default.

  8. Computer security - Wikipedia

    en.wikipedia.org/wiki/Computer_security

    An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data ...

  9. Hacknet - Wikipedia

    en.wikipedia.org/wiki/Hacknet

    Instead, a simplified system of a variable speed countdown is used to force the player to act quickly. If this countdown reaches zero, the player is given one last chance to avoid a game over by hacking their ISP and changing their IP address. Once superuser privileges have been obtained, the file system of the computer is investigated. The ...