As many of you know, processor's clock frequency improvement got stuck in about 2003, causing the origin of multicore CPU (and other technologies). In this article I'll introduce you on how to run code simultaneously in various processors (I suppose that all of you have a multicore CPU). When you write code without any parallel directive, it only executes in one CPU at the same time (see it below). OpenMP make simple to work with various cores (if not with all of them) , without so much heada...
One of the first orders of business after purchasing a new smartphone is to load up your shiny new toy with phone numbers, email addresses, and general contact information for all the important people in your life.
My bathroom is like my own private arcade room. Whenever I'm seated comfortably on the toilet, no one is going to disturb me, so I can play anything I want on my smartphone. You probably do it, too — and your parents, kids, friends, colleagues, and boss — so don't be afraid to admit it.
Unruly customers. Crazy exes. Horrible bosses. When you need proof of insanity or just want it for your records, recording a phone call is a must. Problem is, it's not the easiest thing to do on an iPhone — but it's completely possible.
Welcome back, my tenderfoot hackers! In this series, we are exploring the myriad of ways to hack web applications. As you know, web applications are those apps that run the websites of everything from your next door neighbor, to the all-powerful financial institutions that run the world. Each of these applications is vulnerable to attack, but not all in the same way.
Why did I write this when they're tons of scanning tools available.
Welcome back, my hacker novitiates! In the previous two posts in this series, we looked at the basics of buffer overflows. In this post, we will look at one technique for finding buffer overflows. We will try to send random, oversized, and invalid data at a variable to see whether we can make it crash or overflow. This process is known as fuzzing. It is often the first step to developing an exploit, as we need to find some variable that is susceptible to overflowing.
On Thursday morning, May 28th, Google announced an upcoming version of Android—and within a few hours, a preview build of this so-called "Android M" release was made available to select Nexus devices.
We are visual animals. So when it comes to food, presentation is everything. In deciding what to eat, certain colors and textures instantly turn us off or on. Think of runny sautéed spinach versus a salad of fresh vibrant spinach. Which one would you reach for first?
NOTICE: Ciuffy will be answering questions related to my articles on my behalf as I am very busy. Hope You Have Fun !!!
If you've ever wiped your computer without having a proper backup of your operating system, or just wanted to cause some havoc online, chances are you've had to rely on Linux to help you out, specifically the Ubuntu distro.
Throwing a party means making sure everyone has fun, but that pursuit can quickly get out-of-hand. Before you know it, you're once laid back get-together has received so many RSVPs that it becomes obvious you're throwing the party of the century. With an over-abundance of beer and an inflated guest list, your newly-formed epic reputation must live up to the hype.
Chrome, Firefox, and Safari all provide built-in features that allow you to save your username and password for your favorite sites, making the process for entering your credentials a breeze when you revisit them.
Depending on who you ask, internet connectivity should be a basic human right. With Google recently embarking on a project to provide internet capabilities to remote corners of the world using balloons and satellites while Facebook attempts to do the same with unmanned drones, the concept of free web access is steadily gaining steam.
The world of root is upon us, folks. While the LG G3 has be available for purchase for a couple of months now, rooting had been a shaky subject. International and T-Mobile variants enjoyed root from day one, while various security patches left the AT&T and Verizon Wireless variants as a mixed bag, and Sprint completely out in the cold.
If you're anything like me, every time you travel you end up in a desperate panic for a decent W-Fi connection. Whether you want to post your photos, research the best beaches, or kill time during an overnight layover, a hotel's Wi-Fi quality is of paramount significance in making a reservation.
With all of the personal data that's stored on our smartphones, it's of vital importance that we have some sort of lock screen security enabled. One of the Galaxy S5's killer features is obviously the fingerprint scanner. It makes the process of dealing with a secure lock screen a bit easier than typing in a password or PIN.
Welcome back, my neophyte hackers! I have already done a few tutorials on password cracking, including ones for Linux and Windows, WEP and WPA2, and even online passwords using THC Hydra. Now, I thought it might be worthwhile to begin a series on password cracking in general. Password cracking is both an art and a science, and I hope to show you the many ways and subtleties involved.
It used to be easy to hack tethering—root your device and install a third-party or modded tethering app. But snuck in amongst the changes in Android 4.3, a new data-monitoring service of sorts made its debut. There used to be a time when your data connection was yours. You paid for it, so you were free to use it for whatever you wanted. Unfortunately, those days are long gone.
Apple just unveiled iOS 8 at the Worldwide Developer's Conference, and it has a lot of exciting features to play around with. Unfortunately, it won't be available to the public until this coming fall—but that doesn't mean you can't get it right now.
Have you ever fallen victim to a clever Jedi mind trick? Don't worry. It happens. There are evolutionary reasons as to why our brains sometimes give into the oldest tricks in the book. Fortunately, the more you understand the tricks of a salesman, the easier it is to avoid their gripping psychological influence. Clue #1: Too Much Specificity
Okay, so you're rooted and need to return your Nexus 5 to its stock firmware. Whether it's because you need to send your phone in to the manufacturer to fix a defect or you just want to use the device's over-the-air updating feature, unrooting and returning your Nexus 5 back to its fresh-out-of-the-box state is a fairly simple process with the right tools.
A long time ago, we recommended the Hover Zoom extension for Chrome as an easy way to blow up small image thumbnails without actually have to "click" on the images themselves. Over the past year, there have been reports that Hover Zoom now collects and sells your browsing data to third-party advertisers without your consent.
Welcome back, my greenhorn hackers! In a previous tutorial on hacking databases, I showed you how to find online databases and then how to enumerate the databases, tables, and columns. In this guide, we'll now exfiltrate, extract, remove—whatever term you prefer—the data from an online database.
Welcome back, my tenderfoot hackers! So many readers in the Null Byte community have been asking me questions about evading detection and hacking undetected that I decided to start a new series on digital forensics.
You probably already know what you want to do when you grab your phone. More than likely, you're either going to make a call, send a text, or open an app. So why can't you just do that right from your Samsung Galaxy S3's lock screen?
Welcome back, my rookie hackers! When Wi-Fi was first developed and popularized in the late '90s, security was not a major concern. Unlike wired connections, anyone could simply connect to a Wi-Fi access point (AP) and steal bandwidth, or worse—sniff the traffic.
What Is Pythagorean Theorem? Pythagorean Theorem is an equation discovered by a man named Pythagoras. It can be used to determine whether or not a triangle is a right triangle and find missing lengths of a triangle. The equation is: Parts of a Triangle
The very first text message was sent on December 3rd, 1992 by Neil Papworth, an engineer for Vodafone, and it simply said "Merry Christmas." He may have jumped the gun on the whole Christmas thing, but you trying coming up with the first text message in history!
There are hundreds of keyboard shortcuts out there, but these 7 are the ones you'll definitely want to remember. I use them every day, and you should too. Step 1: Tab Domination
Will the predicted apocalyptic date—December 21st, 2012—really be the end of the world? In this ongoing five-part series, we examine what would happen if zombies, nuclear weapons, cyber wars, earthquakes, or aliens actually destroyed our planet—and how you might survive.
Apple is notoriously cryptic when it comes to the reveals of its new products, and as usual, they've kept us guessing about the release of the iPhone 5 (or "New iPhone?"). It's expected to be officially revealed on September 12, and rumor has it that sales will begin on the 21st. Though the whole world seems to be anxiously awaiting the announcement, there has also been some controversy surrounding the iPhone 5's production. With the high number of suicides and poor working conditions at Foxc...
I always found that those safety lights for bicyclists on the market were never good enough when riding in the dark. That got me thinking about people who use wheelchairs and how unsafe the night could be when they want to go out. So here's what I came up with:
This video tutorial is in the Business & Money category which will show you how to negotiate a salary right out of school. Of all the questions you can get asked in an interview, probably the toughest one to answer is "what are your salary expectations?" if you quote too low, you might leave some money on the table. And if you go too high, you may price yourself out of the job. So, what does a college student do? If they asked you the question in an interview, be clear that it's a negotiation...
Paying retail just isn't as good of a deal as buying straight from the manufacturer. To become a buyer, figure out the right manufacturers for you. Initially, you can start this process by doing web research. Surf the internet to find out what manufacturers sell directly to the consumer. Internet access is important for finding product information. Scan the manufacturer's website for online catalogs that describe an item's price, color, model, ID number, and make.
First go to your Wordpress admin and click the "custom file editor" in thesis options. Now copy that code which is showing in the video and paste it in the custom.css file and click on the big green save button. Now select
Computer pranks are some of the most insidious because computer are so expensive, necessary, and misunderstood by the general public. This video will show you how to take advantage of all of that by writing a quick script that will cause a computer's disc drive to open and close apparently of it's own free will. Great for messing with friends and coworkers at the office.
In this tutorial, we learn how to root your G1 or MyTouch 3G with one click. First, go to theunlockr and download the MyTough 3G Root video. Now, go on your phone and click on the settings. Go to applications, then check "unknown sources", then go back and click on "sd card" and un-mount it, then format it. Once the numbers pop up again, it means your card is mounted and formatted. Now, plug your phone in with the USB cable to your computer and mount it. Now, go to the site and download the t...
Babysitting is the prime teenage job for young women to start learning responsibility and earning a wage, but it isn't all fun and games… you are dealing with an infant, which is far from fun, but it's money in your pocket. Earning a little extra money babysitting infants can be more fun — and a lot easier — than schlepping food at your local diner.