The Active Portal is a set of services that run on the gateway machine that sits between the wireless access point and the Internet. The access point may be external, such as an Apple Airport Base Station, or internal, such as a Linux Box with 802.11 card. Each Active Portal may serve one or many [...]
Firmware is a term sometimes used to denote the fixed, usually rather small, programs that internally control various electronic devices. Typical examples range from end-user products such as remote controls or calculators, through computer parts and devices like harddisks, keyboards, TFT screens or memory cards, all the way to scientific instrumentation and industrial robotics. Also [...]
Remote Authentication Dial In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for computers to connect and use a network service. RADIUS was developed by Livingston Enterprises, Inc., in 1991 as an access server authentication and accounting protocol and later brought into the IETF standards.[1]
Because of the [...]
Wireless Internet Service Providers (WISPs) are Internet service providers with networks built around wireless networking. The technology used ranges from commonplace Wi-Fi mesh networking or proprietary equipment designed to operate over open 900MHz, 2.4GHz, 4.9, 5.2, 5.4, and 5.8GHz bands or licensed frequencies in the UHF or MMDS bands.
The emerging IEEE 802.16 standard, commonly known as WiMAX, promises to deliver last mile wireless broadband internet access capable of carrying data intensive applications, such as VoIP and streaming video, to Metropolitan Area Networks, as well as sub-urban and rural communities. WiMAX is considered a disruptive technology, designed as an alternative to fixed line DSL [...]
A Web page used on public-access networks that require a user to view and interact with before being granted access to the public network. Captive portals are widely used businesses which offer free Wi-Fi hotspots to Internet users. Usually the captive portal will require users to read and accept the business’ acceptable use policy (AUP). [...]
The captive portal technique forces an HTTP client on a network to see a special web page (usually for authentication purposes) before using the Internet normally. A captive portal turns a Web browser into an authentication device. This is done by intercepting all packets, regardless of address or port, until the user opens a browser [...]
For long, free services like Skype have been associated with Voice over Internet Protocol (VoIP) — i.e., using your computer and a broadband internet line to make long-distance phone calls. Basically, what you used to pay for before came to you for free.
However, the main problem with such a service was, you had to be [...]
Every modern notebook is Wi-Fi enabled, allowing internet access from any part of the globe. But while using your wireless notebook, you should be aware of Wi-Fi standards, hotspots, and how to effectively use this technology to make the optimum use of your notebook.
The 802.11g Wi-Fi standard is the latest standard, which your notebook follows [...]
Bluetooth can be defined as a wireless form of communication that enables devices to send and receive communication. It is a global initiative set up by manufacturers such as IBM, Intel, Ericsson, Toshiba and Nokia to create a standard for linking up devices such as mobile phones, mobile PCs, handheld computers and other peripherals. Bluetooth [...]