Free .com domain Registrations. Offer till 30 June
Thursday, June 24, 2010
1and1.com is providing free registrations for .com domains up to 1 year validity and after one year you have to pay for the next term, the cool thing is their price after one year the is same as it is now .
Just choose your Address and register. Note for the registrations you must have a verified PayPal account.
If you have it then congrats you will now be having your own .com for free.
Hurry till offers ends.
Know Whats Hidden Inside that Short URL!
Wednesday, June 23, 2010
These days, we see a lot of “Short” URLs on the net. People use several URL shorteners to shorten lengthy URLS for ease of use. But a short URL won’t tell us where we are going. If some one have shorted a URL of a malware site.. we won’t know that we are been tricked until we visit that site! That’s why we should know where we are going!
If you use Twitter, you might have noticed that everyone use short URLS. Even if we use a long URL, Twitterwill automatically shrink it. But nobody knows where these URLS will take you until that page loads in your browser. Because of this problem, recently, Twitter got some big spam and phishing attacks. Some used short URLS to direct you to a false Twitter login page which will steal your login details and use your accountto send more spam!
Recently few bloggers introduced a system which will help you to extract the short URL and tell you where that URL will direct you! KnowURL.com supports almost all the URL shortening sites like bit.ly and tinyurl. Now you can learn where your heading before you step into trouble.
To use this service, simply put your short URL in the given text field and click on “Show URL”. After that they will reveal the true identity of your link within few seconds!
What is CAPTCHA and How it Works?
CAPTCHA or Captcha (pronounced as cap-ch-uh) which stands for “Completely Automated Public Turing test to tell Computers and Humans Apart” is a type of challenge-response test to ensure that the response is only generated by humans and not by a computer. In simple words, CAPTCHA is the word verification test that you will come across the end of a sign-up form while signing up for Gmail or Yahoo account. The following image shows the typical samples of CAPTCHA. Almost every Internet user will have an experience of CAPTCHA in their daily Internet usage, but only a few are aware of what it is and why they are used. So in this post you will find a detailed information on how CAPTCHA works and why they are used. CAPTCPA is mainly used to prevent automated software (bots) from performing actions on behalf of actual humans. For example while signing up for a new email account, you will come across a CAPTCHA at the end of the sign-up form so as to ensure that the form is filled out only by a legitimate human and not by any of the automated software or a computer bot. The main goal of CAPTCHA is to put forth a test which is simple and straight forward for any human to answer but for a computer, it is almost impossible to solve. For many the CAPTCHA may seem to be silly and annoying, but in fact it has the ability to protect systems from malicious attacks where people try to game the system. Attackers can make use of automated softwares to generate a huge quantity of requests thereby causing a high load on the target server which would degrade the quality of service of a given system, whether due to abuse or resource expenditure. This can affect millions of legitimate users and their requests. CAPTCHAs can be deployed to protect systems that are vulnerable to email spam, such as the services from Gmail, Yahoo and Hotmail. CAPTCHAs are mainly used by websites that offer services like online polls and registration forms. For example, Web-based email services like Gmail, Yahoo and Hotmail offer free email accounts for their users. However upon each sign-up process, CAPTCHAs are used to prevent spammers from using a bot to generate hundreds of spam mail accounts. CAPTCHAs are designed on the fact that computers lack the ability that human beings have when it comes to processing visual data. It is more easily possible for humans to look at an image and pick out the patterns than a computer. This is because computers lack the real intelligence that humans have by default. CAPTCHAs are implemented by presenting users with an image which contains distorted or randomly stretched characters which only humans should be able to identify. Sometimes characters are striked out or presented with a noisy background to make it even more harder for computers to figure out the patterns. Most, but not all, CAPTCHAs rely on a visual test. Some Websites implement a totally different CAPTCHA system to tell humans and computers apart. For example, a user is presented with 4 images in which 3 contains picture of animals and one contain a flower. The user is asked to select only those images which contain animals in them. This Turing test can easily be solved by any human, but almost impossible for a computer. The challenge in breaking the CAPTCHA lies in real hard task of teaching a computer how to process information in a way similar to how humans think. Algorithms with artificial intelligence (AI) will have to be designed in order to make the computer think like humans when it comes to recognizing the patterns in images. However there is no universal algorithm that could pass through and break any CAPTCHA system and hence each CAPTCHA algorithm must have to be tackled individually. It might not work 100 percent of the time, but it can work often enough to be worthwhile to spammers. What Purpose does CAPTCHA Exactly Serve?
What is the Need to Create a Test that Can Tell Computers and Humans Apart?
Who Uses CAPTCHA?
Designing a CAPTCHA System
Breaking the CAPTCHA
Suicide
WATCH ONLY IF YOU HAVE A STRONG HEART
Oh God
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No Increment
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Oh God
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GOOD BYE TO ALL
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Oh God
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No overtime
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No Increment
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No better food
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No entertainment
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Oh God
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GOOD BYE TO ALL
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