Community Libraries Search Results

How To: Parallel Programming with OpenMP: A Quick Introduction

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...

Tutorial: Create Wordlists with Crunch

Greetings all. Before I get into the tutorial, I would like to mention that I am fairly new to Null Byte (been lurking for some time though), and what really appeals to me about this place is its tight, family-like community where everyone is always willing to help each other and the constant search for knowledge that inhabits this subdomain is a driving motivator for me to join in. I'm glad I arrived at the right time. Anyway, wipes tears (not really)...

How To: Theme Marshmallow with Android's Hidden Theme Engine

Not too long ago, Sony was looking to create a method for theming the interface of their Xperia smartphones and came up with a framework called Runtime Resource Overlay (RRO). They then contributed this framework to Android's main code base, and Google has since taken over the development of RRO as a way for manufacturers to implement themes in their skinned versions of Android.

How To: 12 Browser Add-Ons for Reddit Pros

Reddit, the self-proclaimed "front page of the internet," continues to take a big bite of my free time each and every day, as well as millions of its other users'. The clicking and scrolling through page after page never gets old, but you could speed things up with a few browser extensions and double your Reddit knowledge in half the time. Here are my favorite extensions you can try out for the Chrome, Firefox, and Safari web browsers.

Android Basics: How to Install Apps

Your average Android phone or tablet comes with quite a few apps already installed—even before you turn the device on for the first time. These pre-installed apps are certainly helpful when it comes to getting your feet wet with Android, but in many cases, they're not always the best apps available for accomplishing the tasks that they perform. Additionally, many third-party apps can add lots of cool functionality to your device, so you might say that sticking with only the pre-installed apps...

How To: 8 Menu Bar Apps Every Mac Power User Needs

The menu bar is a great place to perform quick searches, track battery life, and switch Wi-Fi networks on your Mac, but it can do way more than that if you let it. I've rounded up some menu apps below that not only have features that will boost your productivity, but are lightweight enough to run entirely from the menu bar.

Hack Like a Pro: How to Find the Exact Location of Any IP Address

Welcome back, my tenderfoot hackers! Have you ever wondered where the physical location of an IP address is? Maybe you want to know if that proxy server you are using is actually out of your local legal jurisdiction. Or, maybe you have the IP address of someone you are corresponding with and want to make certain they are where they say they are. Or, maybe you are a forensic investigator tracking down a suspect who wrote a threatening email or hacked someone's company.

How To: Move App Icons Anywhere on Your iPhone's Home Screen Without Jailbreaking

Your iPhone's home screen is a tricky thing. You can sort your collection of apps in any order you'd like, but where you place those apps is a totally different story. App and folder placement follows a strict grid on iOS from left to right, top to bottom. No exceptions, and that's how Apple wants it. So you might think without a jailbreak you're stuck with this layout — but you're wrong.

How To: KitKat Leaked! How to Install the Latest Android 4.4.2 Build on Your AT&T Samsung Galaxy Note 3

The @DesignGears guys have been busy today, leaking an unofficial KitKat build (Android version 4.4.2) for the AT&T Samsung Galaxy Note 3. The latest is a peek into what the international variants are beginning to see, although this build is far from official. Still, if you want to give it a shot, I'll show you how to install it, but make sure to check out the details below the how-to to see what you can expect, good or bad.

Hack Like a Pro: How to Change the Signature of Metasploit Payloads to Evade Antivirus Detection

Welcome back, my budding hackers! I've written several listener guides on creating a malicious PDF or malicious Word document that would carry in it a payload with the Meterpreter, or reverse shell enabling you to own the system. One of the hurdles to using these techniques is the antivirus (AV) software on the target system. For instance, if you try to email a malicious PDF or Word doc, it's likely that the victim system will alert the victim that it contains a virus or other malware.