Li-Fi CAN'T PERFORM A Wi-Fi WORK

Long restricted to the academic domain, Li-Fi, a light-based data delivery method is suddenly getting all sorts of attention. An Estonian startup Velmenni recently tested an commercial implementation and found it to be superior to Wi-Fi in almost every way – except as something you and I will probably ever use.
Velmenni’s technology, called Jungru, uses an LED bulb and transmits data at gigabit speed. It has a theoretical speed of 224 gigabytes per second, the BBC reported. While the Jungru product is commercially viable, it is still based on what seems to be a laboratory-grade MATLAB and Simulink setup paired with photodiodes as opposed to a final product which must transmit data in real world environments full of light pollution and other variables.

 University of Edinburgh Professor Harald Hass first demonstrated Li-Fi as a part of the D-light project at the school’s Institute for Digital Communications back in 2010. He gave a 2012 TED Global talk about it but but despite several companies being interested enough to start a Li-Fi consortium, the technology is still not a commercial contender

The technology uses protocols similar to the RF-band 802.11 protocols, with additional standards to eliminate the impacts of interference and impacts of ambient lighting. Despite this, however, the technology cannot be deployed in outdoors in sunlight or in other odd conditions.

While Li-Fi does come with the advantage of not interfering with radio signals, a lot of the benefits are overpowered by the simple fact that visible light cannot travel through walls, an essential factor which gives old-school Wi-Fi a huge advantage. This line-of-sight limitation does make the system more secure and gives better control over emissions, but it’s unclear what the minimum distance for signal reception would be if clear line-of-sight is achieved. With that in mind, it is easy to imagine the signal being intercepted by someone with a telephoto lens and an optical sensor tuned appropriately. While Li-Fi was touted as a possible channel for wireless communications on airplanes, widespread adoption of onboard Wi-Fi on most US airlines makes this use case less and less pertinent.

LED lightbulbs that use the technology don’t appear visually different – information is encoded in pulses of light that are small and rapid enough perturbations to be undetectable to the naked eye. While it’s attractive to envision a network of connected lightbulbs all being used to transmit data between nodes, it’s not clear if the benefits of faster wireless communication will outweigh the costs of constantly-on LED lights, as well as the cost of optical detectors requiring clear line-of-sight.
There certainly is room for Li-Fi and other visible light-based communication systems to grow in niche areas, but router manufacturers can rest easy for a while. Wi-Fi isn’t going anywhere soon, and neither is that router you bought on Black Friday and offers “piddly” 1300 mbps speeds with all the benefits of RF.

Recover any lost password

Today am talking about Password recovery. If you are there and you lost your password on any device, any operating system. I got Lazagne for you.
It is an open source tool that runs on Windows and Linux and allows to recover passwords stored in many applications. It does not require installation, works in the form of modules and can of course be integrated into all your scripts.


  This tool can extract all the lost WiFi keywords and the passwords stored on your browsers. Plus it supports a large number of programs on Windows such as Skype and the FTP programs as well as WiFi
 Supported software (22 Programs supported on Microsoft Windows and 12 on a Linux/Unix-Like OS):

How to retrieve lost passwords on your local computer using LaZagne?

 - Download the tool from GitHub (no installation required)
 - Open DOS command (On Windows: Start > Run , type: cmd.exe and launch it with administrator privileges)
 - A simple command prompt: -h laZagne.exe : will summarize the options for you:
 - There is therefore: laZagne.exe all : This command will execute all the LaZagne project modules. (browsers, Chats, databases, emails, svn, Wifi.)
 - But it is also possible to use a specific mode: laZagne.exe browsers :
 Note: For wifi passwords \ Windows Secrets, don't forget to launch it with administrator privileges!

HOW POST ON FACEBOOK VIA TEXT MESSAGES

Facebook provides a number of options for posting updates to your Wall, including an option for celullar users called, Facebook Texts. With the cellular service activated, you can compose status updates with your cellphone's SMS utility and send them to a special number managed by Facebook. Status updates created by Facebook Texts display a small mobile icon adjacent to your Wall post, indicating the manner in which the update was posted.

Step 1

Go online to Facebook Mobile at Facebook.com/mobile and sign in to your account if you aren't already logged in.

Step 2

Click "Sign Up For Facebook Text Messages" at the bottom of the screen.

Step 3

Choose your country and your cellular carrier from the drop-down menus.

Step 4

Open the SMS utility on your phone and text the letter "F" to "32665." A moment later you will receive a confirmation code.

Step 5

Type the confirmation code in the text field displayed in the "Activate Facebook Texts" window and click "Next." Facebook authorizes the phone.

Step 6

Text message your status to "32665" to post a message to your Wall.