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Hack Like a Pro: Finding Potential SUID/SGID Vulnerabilities on Linux & Unix Systems

Welcome back, my nascent hackers! We have spent a lot of time in previous tutorials focused on hacking the ubiquitous Windows systems, but the vast majority of "heavy iron" around the world are Linux or Unix systems. Linux and Unix dominate the world of Internet web servers with over 60% of the market. In addition, Linux and Unix servers are the operating system of choice for major international corporations (including almost all the major banks) throughout the world.

How To: Hunt Down Space-Hogging Files on Your Mac with Disk Inventory X

I love my MacBook Air, but the fact that it runs on only 128 GB of flash storage causes me to move most of my files to the cloud. I don't mind having to be connected to the internet in order to access my files, but it's definitely a hassle trying to figure out which files I should move in order to save the most space. Usually, I don't even bother even trying until I see the dreaded "Your startup disk if almost full" warning. Currently, the only real way to find your biggest files in Mac OS X ...

How To: "Find & Replace" Text Directly in Your Web Browser

I'm sure you've been there—halfway through typing something out, you realize that one word you've been using more than any other has been misspelled. Perhaps it's a single word, acronym, or line of code that you find yourself typing quite often at work, but this one requires complicated hand gymnastics that you'd simply rather not perform over and over again.

How To: Increase iPhone Security with an Easy-to-Remember Passcode That Changes Every Minute

If somebody really wants to gain access to your iPhone, they'll get in. Phone thieves (and mischievous friends) can easily figure out your passcode just from looking over your shoulder or tracing over the oily smudges on the screen. And if you're using popular passcodes, birthdays, and addresses on your iPhone, you might as well disable lock screen security entirely.