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How does SSL really work?

...l the service of using their private key to sign certificates for other organizations. For example, I create a certificate and I pay a company like Verisign to sign it with their private key.[3] Since nobody but Verisign has access to this private key, none of us can forge this signature. And how w...
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Case insensitive comparison of strings in shell script

...nswered Oct 16 '13 at 19:20 alphanineralphaniner 1,64722 gold badges88 silver badges22 bronze badges ...
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How to delete a character from a string using Python

There is a string, for example. EXAMPLE . 16 Answers 16 ...
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How to play an android notification sound

I was wondering how I could play a notification sound without playing it over the media stream. Right now I can do this via the media player, however I don't want it to play as a media file, I want it to play as a notification or alert or ringtone. heres an example of what my code looks like right...
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Convert object string to JSON

How can I convert a string that describes an object into a JSON string using JavaScript (or jQuery)? 20 Answers ...
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When should I use perror(“…”) and fprintf(stderr, “…”)?

Reading the man pages and some code did not really help me in understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") . ...
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Are Exceptions in C++ really slow

... The main model used today for exceptions (Itanium ABI, VC++ 64 bits) is the Zero-Cost model exceptions. The idea is that instead of losing time by setting up a guard and explicitly checking for the presence of exceptions everywhere, the compiler generates a side table...
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Clicking a button within a form causes page refresh

I have a form in Angular that has two buttons tags in it. One button submits the form on ng-click . The other button is purely for navigation using ng-click . However, when this second button is clicked, AngularJS is causing a page refresh which triggers a 404. I’ve dropped a breakpoint in the f...
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Detecting when user has dismissed the soft keyboard

I have an EditText widget in my view. When the user selects the EditText widget, I display some instructions and the soft keyboard appears. ...
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How to get “wc -l” to print just the number of lines without file name?

outputs number of lines and file name. 9 Answers 9 ...