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    • What is a Dial-Up Connection?

      What is a Dial-Up Connection?

      A dial-up connection is any connection that is connected through a regular phone line. When that phone line is connected to a modem and then configured to dial a specific number, a user can access the Internet. It is the slowest form of Internet connection, but that is a result of also being the most

    • Range Extender

      Range Extender

      A range extender is a device that can be placed between two connection points in order to bounce a wireless signal from one device to another. Range extenders work great for large offices and factories that need high-speed Internet throughout the premises without running cables or purchasing satellite Internet. Range extenders can be used with

    • HSCSD (High Speed Circuit Switched Data)

      HSCSD (High Speed Circuit Switched Data)

      Fixed/Mobile Mobile Circuit/Packet Circuit Max Bandwidth 57.6Kb Range Coverage area of host network Frequency Frequency of host network Host Network GSM Definer ETSI (European Telecommunications Standards Institute) URL http://www.etsi.org/ HSCSD (High Speed Circuit Switched Data) is a specification for data transfer over GSM networks. HSCSD utilizes up to four 9.6Kb or 14.4Kb time slots, for

    • Cantenna

      Cantenna

      A Cantenna is a waveguide antenna that is directional in nature, and is used to better detect or broaden a wireless network’s range. The original Cantenna was a 50 ohm resistive load that amateur radio enthusiasts used. It is a simple product that can be created with an empty Pringles can (and more recently, wider

    • Free Firewall Software

      Free Firewall Software

      Free firewalls have become very common and represent an excellent alternative to commercial firewall packages. Most of these firewalls run under some form of Linux, FreeBSD, or OpenBSD. Many of these free firewalls are front-ends for the lower-level firewall packages which ship with these operating systems, such as pf (Packet Filter), ipf (IPFilter), ipfw (IPFirewall),

    • WAP (Wireless Application Protocol)

      WAP (Wireless Application Protocol)

      Wireless Application Protocol (WAP) is a technical standard for accessing information over a mobile wireless network. A WAP browser is a web browser for mobile devices that use the protocol. Before the introduction of WAP, mobile service providers had limited opportunities to offer interactive data services, but required interactivity to support Internet and applications such

    • Cisco Switch Commands

      Cisco Switch Commands

      Cisco IOS software is installed in the manageable Cisco switches for better LAN management. It delivers network services and enabled networked applications. The Cisco IOS has a command line interface that helps users to execute the Cisco IOS commands. Cisco Switch Commands The Cisco switch IOS has different EXEC modes with distinctive prompts. These modes

    • Network Attacks

      Network Attacks

      Understanding Network Attacks A network attack can be defined as any method, process, or means used to maliciously attempt to compromise network security. There are a number of reasons that an individual(s) would want to attack corporate networks. The individuals performing network attacks are commonly referred to as network attackers, hackers, or crackers. A few

    • VDSL (Very High Bit-Rate Digital Subscriber Line)

      VDSL (Very High Bit-Rate Digital Subscriber Line)

      Broadband has revolutionized the way we view and use the internet. The two main types of broadband technology that have pervaded the market are Asymmetric Digital Subscriber Line (ADSL) and cable modems. Both these technologies are a huge leap from the days of the 56 Kbps dial-up connections, with maximum speeds ranging between 8 to

    • 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,

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