Terminal Mac Command

Here's a delicious Byte of information for you. A proof of concept program on Linux was coded to exploit a known bug in how the Linux Kernel (versions 2.6.39+) handles permissions for the /proc/pid/mem directory. /proc/pid/mem is an interface for reading and writing directly t ...more

Here at Null Byte, we've spoken a lot about securing and anonymizing traffic. This is a big deal. With all of today's business taking place electronically via computers, we need to be secure when on-the-go. A lot of businesses don't even train their employees to secure their c ...more

Back when I was a Windows user, I know I'm not the only one who has experienced password loss—that moment where you just can't remember your password. Sometimes it happens to the best of us. So, how can we get into the system without paying a local geek or geeksquad to do it? ...more

When it comes to webcams these days, most people are using their laptops over desktops. The cameras are centered, integrated, and require no configuring. They're a cinch and usually have great resolution. So, then what do we do with all of those old wired desktop webcams that ...more

Gamers who have their Xbox 360's firmware flashed may have recently noticed an inability to play backups, or even make backups of newer games that have come out, such as Gears of War 3 and Dead Island, to name a few. This is because Microsoft has come out with a new disc form ...more

Shortening URLs has become a necessity in this age of Twitter and limited-character status updates. It not only allows us to cram more words into our oh-so-important Twitter statuses, but it also helps us with a few other things. Some Benefits of URL Shorteners We can create ...more

GRUB, or the GRand Unified Bootloader, is a program that installs to your Master Boot Record and controls what operating system you load at boot time. Normally, it is used for multi-boot systems. Multi-boots allow you to switch between operating systems installed on seperate d ...more

Null Byte is looking for forum moderators! Last Friday's mission was to accomplish solving HackThisSite, basic mission 9. This mission delves a little further into Unix commands and remote directory traversal (which is just a fancy term for going through folders blindly). Th ...more

Last Friday's mission was to accomplish solving HackThisSite, basic mission 8. This meant that we had to learn some more basic Unix commands. These missions are for everyone here, and you can join at any time. Your experience level doesn't matter. HackThisSite is a free, lega ...more

Archiving and compression is a great way to store and prepare files for sending. You can reduce the size of a file, turn a group of files into a single file, and even encrypt and password the contents! Just take a look at this image to see how much it compressed a 28GB text fi ...more

With the Google+ team members being generous and free-flowing with advice on some of the more advanced features of Google+, we'll be publishing a weekly summary of the latest pro tips. Chances are, if you've been following the Google+ team members, you've seen some of these al ...more

Leaving your wireless router at its default settings is a bad idea. The sad thing is, most people still do it. Once they've penetrated your network, hackers will change your router settings so they'll have an easy way back in. This allows them to change your network into a she ...more

File Transfer Protocol, or FTP, is a network protocol made for transferring files in a client and host fashion over a Transmission Control Protocol (TCP) network, such as the internet. FTP is integrated into most browsers, and you have probably used it before. It is a common w ...more

You're sitting in front of your grandmother's Windows XP machine that has the worst infection you've ever seen. Safe mode? No dice. Restore points? They're compromised. Even worse, all of the files are hidden and none of the executables will run! This leaves her computer in a ...more

Some people are what is labeled a power user. I am one of these people. No matter how fast I get my system, or how quick of programs I have, it is never good enough. There is always at least one program that I could swap out for a more advanced, text-based counterpart that inc ...more

Download the Software Go to the Antiprism downloads page. Download and install Antiprism 0.20. Run the Programs You need a method of running programs on the command line. In Windows, that could be a DOS box, on other systems a terminal emulator (e.g. xterm). Start this up. ...more

Hey, hackers! Now that you've hacked/owned your first "box" in my last article, let's look a little closer at another great feature of Metasploit, the Meterpreter, and then let’s move on to hacking a Linux system and using the Meterpreter to control and own it. Why Meterprete ...more

As you progress in the world of information security, you'll find yourself in situations where data protection is paramount. No doubt you will have files to hide and secrets to share, so I'm going to show you how to use the GNU Privacy Guard (GnuPG or GPG for short) to encrypt ...more

Watch out Macs. Flashback is back. Variations of the trojan have reportedly infected 600,000 Mac computers around the globe, with about 57 percent in the U.S. and another 20 percent in Canada. Dr. Web, who discovered the spreading Flashback, said that these trojans install t ...more

Have you ever been away from home or on holiday and noticed an open network connection? FREE INTERNET! But then you find out that every search or page redirects you to an "enter password" or "signup here" page. Well, there are ways around this. In this article, I'll show you ...more

Do you need to email your wife your Social Security number? Send confidential business plans to your partner in Thailand? Send your hacker buddies the recovered hashes from last night's breach? Try using GPG, a valuable and easy to use open-source encryption program. In my fi ...more

WonderHowTo is a how-to website made up of niche communities called Worlds, with topics ranging from Minecraft to science experiments to Scrabble and everything in-between. Check in every Wednesday evening for a roundup of user-run activities and how-to projects from the most ...more

Ubuntu users can directly copy flash videos from the web with Firefox. There's no need to install software such as a YouTube downloader, which are available in abundance throughout the web. First, you need to know where to find the temporary flash file in Ubuntu (see my other ...more

This is a working solution for those using an external monitor on their MacBook Pro's running Yosemite. The previous terminal commands for Mavericks no longer works on Yosemite, so this how to do it. More info on the solution can be found here: (all credit goes to rwg) http: ...more

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 If you're a super user like me, you probably have at least 10 tabs open at any given time. Tabs we ...more

Nmap is possibly the most widely used security scanner of its kind, in part because of its appearances in films such as The Matrix Reloaded and Live Free or Die Hard. Still, most of Nmap's best features are under-appreciated by hackers and pentesters, one of which will improve ...more

Need to clear you cache? This guide details how on any web browser (Chrome, Internet Explorer, Firefox, Opera, Safari, Internet, and Dolphin) for any platform (Windows, Mac OS X, iOS, and Android). What Is the Cache Exactly? The web cache stores certain information (HTML page ...more

Linux is generally a pretty stable OS, but occasionally things happen. However, as long as your keyboard has a SysRq key, you'll never need to worry about freezes again. The SysRq key functions allow you to perform various low level commands, even when your system is unrespon ...more

The threat of an evil access point has been around for a long time, and with the rise of open public Wi-Fi, that threat is often overshadowed by how comfortable we are using third-party Wi-Fi hotspots at coffee shops and public spaces. While we've shown an evil twin attack usi ...more

You know what's awesome? You own a Nexus. That means, with Google's blessing, you have easier access and control over your device than other manufacturers allow. You can really dig in and do some interesting things if you root. The big 'R' word can be intimidating for the new ...more

Cracking the password for WPA2 networks has been roughly the same for many years, but a newer attack requires less interaction and info than previous techniques and has the added advantage of being able to target access points with no one connected. The latest attack against t ...more

Deep down inside, Android is really just a fork of Linux, the popular open source desktop OS. You can see traces of its roots everywhere, and this lineage still holds a certain appeal with many Android fans. If you're in that boat, you'll love the newest notes app we just foun ...more