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Sunday, September 16, 2012

Print to PDF in Ubuntu 12.04 LTS

1.     This is a simple single line of command that u write at the terminal to install a third party app that will install a pdf printer in ur Ubuntu System.
sudo apt-get install cups-pdf

2.     This will be generally handy when u need to print your documents that are ready to print but u don't have a printer installed....actually create a virtual PDF printer on your ubuntu PC that lets you convert all your documents/images/anything into PDFs that you can subsequently send to print as and when u have the facility to print.

3.    Thanks http://ubuntuportal.com

Friday, September 14, 2012

Testing ur Broad Band Speed : The ISP Promise

1.    As a customer you are promised so much from your ISP....and the most important thing an ISP promises a customer is fultu speed...they have various packages and plans to offer that revolve around offering various speeds.But how do u find out if the plan is actually provisioning the speed that u were promised.So there are ...in fact thousands of online tools to give and test your Internet broadband speed.One that I have been a regular follower is the speedtest.net available at http://www.speedtest.net/.

2.   A simple interface that takes less than a minute to get started and conclude with the result.I got the following result for my ISP...and that was as per the promise by ISP....so u can check urs too at the site : http://www.speedtest.net/



Wednesday, September 12, 2012

Being CCCSP: CDAC Certified Cyber Security Professional

1.     There is no doubt that I have keen interest in cyber security issues and subjects.I stop anywhere I find some thing to read or see articles / videos related to cyber security...always grab opportunities like workshops and seminars that hold related events. But just reading and going through these was not going to be enough to make a small mark in the field.Thus I decided to go for a certification exam.Came across CISSP,CCIE,Comp-TIA etc....which were slightly heavier on pocket :-)...so looked for a Indian version and equivalent that is not only recognized but also accepted in government organisations.So I enrolled for the exam in the month of Dec 2011 last year.....and got the results last week....and I passed....became a CDAC Certified Cyber Security Professional.The list of certified professionals is given at the link http://elearn.cdac.in/eSikshak/professional_certified.html


2.   So in this post I am going to tell you few key features of this informative and excellent course :

- Name : CCCSP ie CDAC Certified Cyber Security Professional

- Duration : 6 months

- Certification Fees : Rs 7500/-

- Conducted By : CDAC,Hyderabad


-  Written test conducted at identified CDAC centres across India.

-   Duration of the test is 2 hours.

-  Two sections, 80% of objective type and 20% of subjective in the examination paper .

- 60% score in each section must required

-  The minimum score to get professional certification on average is 70%.

3.    More details available about this course at http://elearn.cdachyd.in/eSikshak/help/English/eSikshak/CCCSP.html

4.    The certificate issued by C-DAC on CCCSP (C-DAC Certified Cyber Security Professional) is valid for 3 years from the date of issue. This is introduced, considering the importance of updating on-self on the latest security issues. 

5.   Thanks CDAC,Hyderabad.

Sunday, September 09, 2012

Wireless Data Transmission from every Light bulb : HAROLD HAAS


1.   As we always hear,the future is always bright and the present is always keeps waiting to see the future.So here is another bright news for all those intersted in knowing the speeds and media for data transmission in near future(...how near...lets see...m sire most of us willbe able to see this...tech demo is seen in the video).Before I start telling you about what news I am sharing with you here,a quote from Harold Haas,the inventor of this technology :

"Everywhere in a day there is light. Look around. Everywhere. Look at your smart phone. It has a flashlight, an LED flashlight. These are potential sources for high-speed data transmission.”

2.    Imagine using your car headlights to transmit data ... or surfing the web safely on a plane, tethered only by a line of sight.Promoting the invent as the D-Light, that uses a mathematical trick called OFDM (orthogonal frequency division multiplexing) allowing it to vary the intensity of the LED's output at a very fast rate, invisible to the human eye.The signal can be picked up by simple receivers. As of now, Haas is reporting data rates of up to 10 MBit/s per second that is faster than a typical broadband connection), and 100 MBit/s by the end of this year and possibly up to 1 GB in the future.He says: "It should be so cheap that it’s everywhere. Using the visible light spectrum, which comes for free, you can piggy-back existing wireless services on the back of lighting equipment.".Please watch this video from the TED talks by Harold Haas himself wherein he explains the technology behind in brief and shows the demo to the live audience.Simply jaw dropping for me...:-)


3.    In addition to this researchers in Germany have created the first white-light data links, which they claim can transfer information at rates up to 800 Mb s–1. The team has demonstrated a simplified version of the technology in an office building, where it managed to broadcast four high-definition video streams from overhead lights.