What Is Wi-Fi

Wireless technology has become a prominent field in the area of networking. It has many uses. The most important being portability and mobility. With the help of wireless technology people now can send and receive messages, phone calls, faxes, read files, login on remote machines etc. and perform all the above mentioned duties from anywhere on land, sea, or air.

The technology of wifi has stormed the field of wireless networking. There are numerous applications of wifi. Nowadays it is very useful and critical in business world because today's business gives more emphasis on the communication of the information. Wifi also finds usage at home, workplaces, shops, any public places etc. the study of the advantages and the risks involved in the wifi system is necessary in order to exploit the full use of it.

About wireless networks.

The transfer of information from node to another with the help of electromagnetic waves is referred to as wireless communication. Signals are normally broadcast through free space and are available to anyone who has device capable of receiving them. A new technique of wireless data transmission known as wifi (wireless fidelity) has been developed. Wifi uses the radio waves to transmit the data. It uses the frequency of 2.4GHz and uses SSID for addressing purposes. SSID stands for Service Set Identifier. It uses a set of characters or numbers addresses so that the sending access point can be identified. Any access point which wants to receive the signal must have the same set of SSID as that of sender's SSID.

Advantages.

The usage of wifi system has numerous advantages. The most important advantage is the cost factor. Since there are free hotspots or access points, a free connection between two nodes cab be established in the network.
A wireless network also provides the facilities of mobility. Hence it is now possible to have a wireless connection, free of hard wired connections.It is also easy to install and configure wifi network. It is also easy and generally faster, internet connections are possible by wifi networks.

Dangers and risks.

Since wifi is a wireless connection it uses the shared wireless space. Hence it is possible that many signals of similar frequencies can interfere with each other and cause unnecessary distortions. This leads to the loss of data and the received data may get corrupted. Hence wifi does not ensure an error free connection.
Another danger involved is related to security of data. It is possible that users who are new to the wifi network may setup an insecure access point, without setting the various security configurations.
It is also possible that some miscreants may use the same default SSID everywhere to access the secured access points illegally. The best way to counter these dangers is to learn and study the configuration of the secured network and make it a rule to always use a different SSID for access point and never keep the default value.


Monday, June 23, 2008

WiFi Spying

Our CIA needs to develop fold out WiFi Spy devices for the field, this will enable them to track international terrorists, hack into Blackberry Type portable devices and monitor computer surfing when an Internet Service Provider cannot be trusted, as in foreign operations. I believe we should hire the Defcon Convention Hackers who were able to receive a signal over 125 miles away without amplification to help us design a system which can easily fit into a small space for easy transport. The previous World Record for an un-amplified WiFi connection was just over 55-miles. To learn more as to how this is done go to this website:

http://www.wifi-shootout.com/

We know that the International Terrorists and insurgents use personal computers and when they travel they use Internet WiFi systems to send and receive and communicate with their cells. If we can track them and pick up their signals this will in fact give us clues to who they are talking with, what they are surfing for and perhaps the potential dates and places of their next targets against humanity. The Internet Hackers as bad as they are, seem to be able to provide us with their down and dirty prototypes and they assure us, underneath it all they are still Patriots at Heart.

http://wifi.weblogsinc.com/entry/1234000407052562/

We can design a system based on their prototypes out of light-weight materials. Once this is done we can use NASA technologies for the unfolding of systems, similar to their Mars Lander deployments for fast and easy set-up in the field, thus enabling our CIA in-country assets to quickly deploy and fold-up these units for transport. Think on this.

"Lance Winslow" - Online Think Tank forum board. If you have innovative thoughts and unique perspectives, come think with Lance; http://www.WorldThinkTank.net/. Lance is a guest writer for Our Spokane Magazine in Spokane, Washington

Lance Winslow - EzineArticles Expert Author
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