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How To: MAKE FIRE with a MAGNIFYING GLASS

90 seconds that could save your life. How to actually MAKE A FIRE with a lens, rather than just burning a hole in a leaf. (Or frying ants, which seems to be the other thing that kids like to do with magnifying glasses.) By forming your target material into an efficient ball, you will be able to start a fire even with very small lenses. Like less than an inch across small. The finer the individual fibres, and the more densely they are packed, the more effective is your ball of smigtin (smoulde...

How To: Give Your Android Phone Some “Material Design” with Google's New Calculator App

With Google's latest version of their mobile OS, Android L, the most notable aesthetic difference is the newly introduced Material Design concept that will soon be ever-present through the interface. The objective of this bold design is to create "hierarchy, meaning, and focus," as described by Google, and the deliberate choices of color and white space "to create immersion and clarity."

How To: All the Best Black Friday Electronics & Gadget Deals of 2013

This year, like every year before it, Black Friday sales are starting earlier than ever. A lot of stores will be opening their doors as early as 5pm on Thanksgiving to get a head start on the madness (and it really is madness). As we've discussed in the past, one of the keys to emerging victorious on Black Friday is to plan, plan, plan. So, we've compiled some of the best deals in tech, gadgets and appliances to help you prepare for battle.

Hack Like a Pro: How to Use Netcat, the Swiss Army Knife of Hacking Tools

For over 20 years, a tiny but mighty tool has been used by hackers for a wide range of activities. Although well known in hacking circles, Netcat is virtually unknown outside. It's so simple, powerful, and useful that many people within the IT community refer to it as the "Swiss Army knife of hacking tools." We'll look at the capabilities of Netcat and how the aspiring hacker can use it.

How To: Mingle

Learn how to mingle. If the idea of walking into a room full of strangers strikes fear into your heart… welcome to the club. But there are ways to overcome this common social phobia.

How To: Calculate math without a calculator

Before the calculator and even the abacus was invented, there was a little instrument called the human brain that we used to do math. Remember that? While most of us turn to our trusty Ti-84s to do calculus homework or whip out our cell phone calculators to determine how much we should tip at Johnny Rocket's, it can often be much faster to use our own brains, along with a piece of paper and pencil.

How To: Exploit Remote File Inclusion to Get a Shell

A simple security flaw can allow an attacker to gain a strong foothold with little effort on their part. When a web application permits remotely hosted files to be loaded without any validation, a whole can of worms is opened up, with consequences ranging from simple website defacement to full-on code execution. For this reason, RFI can be a promising path to obtaining a shell.

How To: Extract Windows Usernames, Passwords, Wi-Fi Keys & Other User Credentials with LaZagne

After exploiting a vulnerable target, scooping up a victim's credentials is a high priority for hackers, since most people reuse passwords. Those credentials can get hackers deeper into a network or other accounts, but digging through the system by hand to find them is difficult. A missed stored password could mean missing a big opportunity. But the process can largely be automated with LaZagne.

Hack Like a Pro: How to Spy on Anyone, Part 2 (Finding & Downloading Confidential Documents)

Welcome back, my tenderfoot hackers! A short while ago, I started a new series called "How to Spy on Anyone." The idea behind this series is that computer hacking is increasingly being used in espionage and cyber warfare, as well as by private detectives and law enforcement to solve cases. I am trying to demonstrate, in this series, ways that hacking is being used in these professions. For those of you who are training for those careers, I dedicate this series.

How To: Find the area of triangle using fraction measurement

This video demonstrates the way to find the area of a triangle using fraction measurements. The person presenting this video first writes the actual formula for calculating the area of the triangle. The formula is: the area of the triangle denoted by ‘A’ is equal to half of ‘b’ times ‘h’ where ‘b’ and ‘h’ are the base and height of the triangle, respectively. Now, to make it into fractions, he writes ‘b’ and ‘h’ over ‘1’. Then he asks you to calculate “what is one times ‘b’ times ‘h’” which i...

How To: Find the area of an oblique triangle using formulas

In this tutorial the instructor shows how to find the area of an oblique triangle using different formulas. To find the area of an oblique triangle there are different formulae. The first formula to calculate the area of a triangle is area A = (1/2) * a * b * Sin(C), where a and b are the lengths of the two sides of the triangle and C is the value of the angle of the triangle that lies in between the two sides a, b. Now substitute these values in the given formula to find the area if you have...

How To: Enumerate MySQL Databases with Metasploit

It's been said time and time again: reconnaissance is perhaps the most critical phase of an attack. It's especially important when preparing an attack against a database since one wrong move can destroy every last bit of data, which usually isn't the desired outcome. Metasploit contains a variety of modules that can be used to enumerate MySQL databases, making it easy to gather valuable information.

How To: Add Variety to Your Favorite Pandora Stations

Whether you're out for a drive, commuting to work, or just taking a stroll, listening to your favorite tracks on Pandora takes the legwork out of choosing which songs to play next. After a while, however, you go-to playlist can get repetitive, as the same songs from the same artists seem to play over and over. Luckily, Pandora makes it easy to add variety to your stations in just a few taps.