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Saturday, June 4, 2011

What is this security image confirmation?

Most of the people on earth are addicted to the Internet.Obviously me and you are included in that set,and trust me we are loving it because it's making things easier than it could ever be.

The terms "Sign up" and "Sign in" are not something unfamiliar to anyone who uses the Internet.If you need to be a member of any website,you gotta SIGN UP.It means you got to fill up an application which asks you for some details which depends on the website.They ask you the "name" ,"date of birth" and many more.but why this SECURITY IMAGE??






I know you have seen this hundreds of times,but you never cared.It's like,okay you asked me to do this and I did it.Some of you might already know the story behind this.This post goes to the excluded set.

If this security image was not on facebook sign up page, I bet you the facebook server would be crashed within few days or let's say a week.This is not applicable only to facebook;any webpage on earth. This image is used on purpose of identifying whether you are a human or not.Let me explain it this way.

You can write a program(call it a spam) which can automatically generate new users for a certain web page(If you are good in hacking).It can use a fake name randomly with random fake details.So what happens if it continuously introduces new users?"There is a limit for anything" right?So definitely the server would crash.
The solution is introducing a security image(PHP captcha),and that is where the hacker fails;in identifying the letters in the image.Which we believe the identification could be done only by a human.That gives the solution.That is why all the web pages are included with this security image confirmation.Hope you learned something from this post.

"Someday someone is going to hack the security image too" wait and watch.

Thursday, June 2, 2011

Which programming language is the best?

This is a common question which any programmer would encounter.Well I would say there is no answer for this question,but there can be an answer for the below question.

What is the best programming language for ............ purpose?

Now that is what makes the difference.The PURPOSE.There are specific programming languages which perform well in certain cases.All we got to do is to select the suitable programming language for our purpose.For instance,Java is the most commonly used programming language these days,but still,we can not say that it is the best programming language.



A beginner would be more comfortable with Python because of its easy to learn syntax.So when a beginner starts to learn something like Python instead of Java,it gives him a good foundation in thinking like a programmer.That would lead him to adore any programming language there after.So in my point of view,Python or Visual Basic would be the best for a beginner.

"It is not the semicolon which matters,it is the way you think"






Get the maximum use of your jail-broken iPhone

Whenever you hear the word "Apple"all you get in your mind is "Restrictions".Well,actually there are reasons for each restriction which apple has installed in their phones.Let me take a simple example;Apple does not let you share your media files with other users.Now why is that???Has anyone thought about it?Well,when it comes to media,there are copyrights.You just can not share your media files with someone else just because you have it.That was a brief explanation.

However,we are always interested in making things easy,and that is why we need a jailbrake.I'm just gonna explain how you can have many of the paid apps in Appstore just for free.This requires a jailbroken iPhone.
Follow the steps below

1)Go to cydia,Manage and then sources


2)Add this source http://cydia.hackulo.us

3)After the source packages are installed,you can view a new source named "hackulo.us" in your source page.Select it,and install the "instalous" package in that.

4)Now you are almost done.Go back to the main menu,and you will be able to see a new app named "Instalous" in your menu.You can get almost 80% of the Appstore's paid apps for free by entering into this app.