• Main Menu
  • Networking

    • Broadband over Power Lines

      Broadband over Power Lines

      Broadband over Power Lines, or BPL, refers to the transmission (sending and receiving) of digital data through existing power cables and electricity distribution infrastructures. This can be viewed as a mere variation on using television cables; instead of using television cables, though, power transmission lines are going to be used. The Broadband over Power Lines

    • ARP Cache

      ARP Cache

      The ARP cache is a table that stores mappings between Data Link Layer addresses and Network Layer addresses. The Data Link Layer addresses are usually MAC addresses and the Network Layer addresses are most frequently IP addresses. The Operating System stores the ARP cache in RAM. Displaying the ARP Cache Under most Unix and Microsoft

    • DHCP (Dynamic Host Configuration Protocol)

      DHCP (Dynamic Host Configuration Protocol)

      An IP address can be defined as a unique numeric identifier (address) that is assigned to each computer operating in a TCP/IP based network. Manually configuring computers with IP addresses and other TCP/IP configuration parameters is not an intricate task. However, manually configuring thousands of workstations with unique IP addresses would be a time consuming,

    • IP Access Lists

      IP Access Lists

      Access lists are used to control and manage access of interesting and non interesting traffic. Access lists are powerful tools for controlling access both to and from network segments. They can filter uninteresting packets and be used to implement security policies. Using the right combination of access lists, network managers will be armed with the

    • Understanding Data Encapsulation

      Understanding Data Encapsulation

      The sending and receiving of data from a source device to the destination device is possible with the help of networking protocols when data encapsulation is used. The data is encapsulated with protocol information at each OSI reference model layer when a host transmits data to another device across a network. Each layer communicates with

    • Port Scanner

      Port Scanner

      A port scanner is a program which attempts to connect to a list or range of TCP (Transmission Control Protocol) or UDP (User Datagram Protocol) ports on a list or range of IP addresses. Port scanners are used for network mapping and for network security assessments. The first decision to make when running a port

    • RG-11

      RG-11

      Coaxial cables are necessary for rooftop antennas and dish antennas in order to provide crystal-clear sound and audio input. RG-11 bands typically have 75-ohm wires made of copper. Polyethylene dielectric makes sure that there is minimal loss of picture and sound while the antenna receives audio or video feeds. Most users of the RG-11 have

    • PPP (Point-to-Point Protocol)

      PPP (Point-to-Point Protocol)

      PPP (Point-to-Point Protocol) is the most widely used method for transporting IP packets over a serial link between the user and the Internet Service Provider (ISP). Although PPP is primarily used over dialup lines, variants such as PPoE (PPP over Ethernet) and PPoA (PPP over ATM) extend PPP to new data-link layer protocols. PPP was

    • DSL (Digital Subscriber Line)

      DSL (Digital Subscriber Line)

      Digital Subscriber Line or Digital Subscriber Loop (DSL) is a type of high-speed Internet technology that enables transmission of digital data via the wires of a telephone network. DSL does not interfere with the telephone line; the same line can be used for both Internet and regular telephone services. The download speed of DSL ranges

    • Mi-Fi

      Mi-Fi

      While Novatel Wireless has copyrighted to name MiFi, it has gone on to mean so much more. Mi-Fi literally stands for my-wifi. In other words, it is a personal credit card shaped piece of hardware that acts as a personal WiFi hot spot for you and a few other computers that you allow onto the

    networking
    474 queries in 0.569 seconds.