Category Archives: operating system

How to Crack a Wi-Fi Network’s WEP Password with BackTrack

You already know that if you want to lock down your Wi-Fi network, you should opt for WPA encryption because WEP is easy to crack. But did you know how easy? Take a look.

How to Crack a Wi-Fi Network’s WEP Password with BackTrack : ehack

How to Crack a Wi-Fi Network’s WEP Password with BackTrack : ehack

Note: This post demonstrates how to crack WEP passwords, an older and less often used network security protocol. If the network you want to crack is using the more popular WPA encryption, see our guide to cracking a Wi-Fi network’s WPA password with Reaver instead.

Today we’re going to run down, step-by-step, how to crack a Wi-Fi network with WEP security turned on. But first, a word: Knowledge is power, but power doesn’t mean you should be a jerk, or do anything illegal. Knowing how to pick a lock doesn’t make you a thief. Consider this post educational, or a proof-of-concept intellectual exercise.

Dozens of tutorials on how to crack WEP are already all over the internet using this method. Seriously—Google it. This ain’t what you’d call “news.” But what is surprising is that someone like me, with minimal networking experience, can get this done with free software and a cheap Wi-Fi adapter. Here’s how it goes.

What You’ll Need

  • A compatible wireless adapter—This is the biggest requirement. You’ll need a wireless adapter that’s capable of packet injection, and chances are the one in your computer is not. After consulting with my friendly neighborhood security expert, I purchased an Alfa AWUS050NH USB adapter, pictured here, and it set me back about $50 on Amazon. Update: Don’t do what I did. Get the Alfa AWUS036H, not the US050NH, instead. The guy in this video below is using a $12 model he bought on Ebay (and is even selling his router of choice). There are plenty of resources on getting aircrack-compatible adapters out there.
  • A BackTrack Live CD. We already took you on a full screenshot tour of how to install and use BackTrack 3, the Linux Live CD that lets you do all sorts of security testing and tasks. Download yourself a copy of the CD and burn it, or load it up in VMware to get started.
  • A nearby WEP-enabled Wi-Fi network. The signal should be strong and ideally people are using it, connecting and disconnecting their devices from it. The more use it gets while you collect the data you need to run your crack, the better your chances of success.
  • Patience with the command line. This is an ten-step process that requires typing in long, arcane commands and waiting around for your Wi-Fi card to collect data in order to crack the password. Like the doctor said to the short person, be a little patient.

Crack That WEP

To crack WEP, you’ll need to launch Konsole, BackTrack’s built-in command line. It’s right there on the taskbar in the lower left corner, second button to the right. Now, the commands.

First run the following to get a list of your network interfaces:


The only one I’ve got there is labeled ra0. Yours may be different; take note of the label and write it down. From here on in, substitute it in everywhere a command includes (interface).

Now, run the following four commands. See the output that I got for them in the screenshot below.

airmon-ng stop (interface)
ifconfig (interface) down
macchanger --mac 00:11:22:33:44:55 (interface)
airmon-ng start (interface)

How to Crack a Wi-Fi Network’s WEP Password with BackTrack : ehack

How to Crack a Wi-Fi Network’s WEP Password with BackTrack : ehack

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6 Trends That Define Android Of 2013

The Single ecosystem which probably was the most dominant in 2012 is Android. With an array of devices exploiting the power and charm of Google’s operating system, Android has grown into an undeniable force. And with the New Year, come a lot of expectations, rumors and speculations. So brace yourself, here is the immediate future, to where the world’s most popular mobile O.S. is headed, compiled by Cnet.

6. Screen Size: Will Grow And Sharpen


Until recently, Smartphone screens that exceed 4 inches were a rarity. But thanks to popular Androids like Samsung’s Galaxy S3, and Galaxy Note 2, which probably lead Android race, people are becoming familiar to larger screens. The trend is catching, but Motorola on its part did something different- Squeezed a 4.3-inch display into the body of a phone that is roughly same as a 3.5-inch phone- edge to edge displays. And that is going to be the standard high end experience for Androids in 2013. Beyond that, the resolution will sharpen. According to reports, almost all Android vendors are working on their sub 5 inch phones with 1080p HD display. HTC already has one- The Droid DNA. Android, with its new iterations like Jelly Bean, support this big displays.

5. Cores Will Multiply

multiple core : ehack

Gone are the days of dual core Smartphones. As the Smartphones replace computers in computing operations, quad-core processors are the new norm. Android is leading this turf too. Almost all high end Android devices in 2013 will come with Qualcomm or Nvidia powered quad-core processors with 1.5GHz processors and some even hitting 2.0 GHz.

The memory and storage options of the Androids will increase on par with the cores. The current 2 GB RAM, which is high end, will turn a norm in 2013. With some manufacturers opting for fixed batteries and removing the external storage, the storage capacities will yield 32 GB for the mid range and 64 GB for the high ends, and an Android with 128 GB storage will not be a dream in 2013.

4. One Device Around The World

around the world : ehack

With Android devices born every minute, manufacturers, unlike the previous years, will adopt single form factor for their devices across the globe. A good initiative, shown by company like Samsung, when they released its flagship Galaxy S3, which was the same device, irrespective of you getting it from Verizon in U.S. or an online store in India. HTC, another major Android manufacturer is following the same path. The accessory manufacturers and the people will benefit from these single specifications used worldwide.

3 Technologies Popularized by Android

various technology : ehack

Android was ahead in popularizing many mobile technologies ahead of others in 2012. This will continue in 2013. NFC will gain a foothold in Android devices to the point of becoming a standard. More NFC enabled accessories will emerge, like tap to play speakers. Mobile payment and transaction spaces will exploit the possibilities of this technology in full swing the coming year. 3D technology, which didn’t see much popularity in 2012, is expected to have the same fate of QR codes- die young. However, specialized Androids for gamers will have this technology embedded.
But the biggest issue faced by Smartphone vendors is battery life. As the screen size, performance and display goes up, it’s the battery that takes a toll. So 2013 will see Smartphones with internal high capacity batteries. With Android hardware exploiting every unique form factors, this wouldn’t be a problem.

2. Android Ruling New Territories

android : ehack

Samsung surprised the world with its Galaxy Camera, which is entirely built on Android Operating system. Other camera makers like Nikon and Polaroid are also experimenting with the same. So more “smart” shooters will emerge in 2013. Moreover, more devices, especially tablets focused on different age groups like kid-centric tablet, Nabi XD, will see light in 2013.
Moreover, the hardware vendors will build electronic devices including micro-waves and washing machines based on Android operating system, which will essentially “connect” your entire home with you.

1. Google I/O and Major Releases

google io : ehack

2012 was not short of major Android releases. With major trade shows CES in January and International Mobile World Congress in February, Android fans can see an array of new devices in shelf. In the mean time various manufacturers will be running standalone press conferences like the expected one from Samsung announcing the launch of its flagship Galaxy S4.
Above all, Google’s annual developer conference, Google I/O is the most anticipated one for Android fans as it is promised to display the real ecosystem changing stuff.



Original post at – siliconindia

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Ubuntu’s Mobile OS Launched, Coming to Phones Later in 2013

The gap between mobile devices and PCs is becoming smaller and more blurred as handsets and tablets evolve. Now, a major player in the PC universe is making a presence in the smartphone industry, as Canonical has just unveiled the first Ubuntu themed operating system for mobile devices.

Just yesterday Canonical began to tease that an Ubuntu-based software for phones would be revealed, but until Wednesday many of the details remained a mystery. The company wasted no time, as Canonical posted a countdown teaser on Ubuntu’s homepage on the first day of 2013. The phrase “So close, you can almost touch it” was posted alongside the countdown, alluding that a significant announcement would come soon.

Touted as a “superphone that’s also a full PC,” the Ubuntu mobile operating system will be built around existing Android kernel and drivers. However, it will not use Java Virtual Machine but does promise to use “the full power of the phone.” This Ubuntu-based smartphone OS will support both ARM and x86 processors, which means that Android hardware manufacturers and developers should be able to adopt the operating system with little trouble.

Although Ubuntu’s mobile software is still in its early stages, an Android version of the Linux-based operating system was announced about one year ago in February 2012. This marked the first step toward a mobile presence for Ubuntu and Canonical chief Mark Shuttleworth says that the software’s Android variant is set to launch this year. No carrier or manufacturer support has been announced yet, but the mobile Ubuntu handset should be provided by a “high end” Android manufacturer, according to The Verge.

Full-fledged Ubuntu handsets are expected to come in early 2014, and this would line up with the company’s production schedule seeing as Ubuntu for Android was announced in early 2012. While we may not be seeing an Ubuntu device anytime too soon, a number of demo phones have been shown off in the UK. Over the next couple of weeks, downloadable images of the development platform will be available for the Galaxy Nexus. This device is the only known handset that will support Ubuntu for now, but Canonical is likely to roll it out to more devices as developers perfect Ubuntu’s mobile ecosystem.

Sources– lifehacker, digitaltrends

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How to Install windows 7 on macbook pro

Install Windows 7 on Apple Macbook Pro using Bootcamp manager.

to get more details about installing windows 7 on macbook, refer to this link —



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2012: Biggest technology failure of the year 2012

Summary: if the year 2012 saw the biggest technology revolution and some dramatic changes in the computer and mobile industry, then it has also seen some of the biggest drop or some of the biggest technology failure in computer industry. I tried to enlist as many as possible points for you all. Enjoy.


HP-Autonomy acquisition : ehack

HP-Autonomy acquisition : ehack

Before HP ousted its consumer-hating CEO Leo Apotheker in 2011, he inked a deal to buy UK-based business services and consulting firm Autonomy for $11.1 billion. This action was undertaken with the understanding that HP was leaving the consumer market. When new CEO Meg Whitman joined the company, fresh off her loss in the California gubernatorial race, she stuck with Autonomy in 2012.

HP had employed accountants to go over Autonomy’s books, but it now seems they missed some big red flags. The deal has turned out to be a massive mistake for HP, which has recently announced it is taking an $8.8 billion writedown on the acquisition in its quarterly earnings. That means that HP believes it paid several times more for Autonomy than it was actually worth. For a company still reeling from the failure of WebOS and declines in its PC sales, this is no small bump in the road.

HP has claimed there is evidence of extensive fraud at Autonomy, which inflated its revenues prior to the sale. Still, if the evidence was so extensive, why did the board not realize what was happening sooner? The handling of the situation has been a disaster in its own right. Autonomy’s founder has pushed back against the allegations, but HP isn’t backing down. Whatever went wrong, HP messed this one up big time. It might take months to see how deep this rabbit hole goes.


Google Nexus Q : ehack

Google Nexus Q : ehack

Oh, Google. The speakers were so enthusiastic about the Nexus Q back at Google I/O 2012. The Nexus Q was a spherical set-top media streamer that connected to Android devices and played content exclusively from Google Play. It was announced alongside the Nexus 7, a small tablet that does appear to be a certifiable hit. However, the Nexus Q launch could not have gone worse for Google.

The search giant gave out free units to attendees of Google I/O, but that didn’t earn the device any good will — it was widely panned for lacking in functionality. No Netflix, no Hulu, and no NAS access? The Nexus Q was proudly made in the USA, and the pricing showed it. Google took pre-orders at $299, which was far higher than competing set-top boxes.

As the terrible reviews rolled in, Google reconsidered its strategy. Google said it was re-tooling the Nexus Q after getting feedback from reviewers and developers. Those brave few who pre-ordered the Nexus Q got theirs for free. However, the device never showed up for sale again, and now even the placeholder has been pulled as the new round of Nexus devices have rolled out.

The Nexus Q was a bold move, but it you have to wonder why Google announced it. Why didn’t anyone stop and ask who the Nexus Q was supposed to be for?

3.Kodak Files for Bankruptcy

Kodak Files For Bankruptcy : ehack

Kodak Files For Bankruptcy : ehack

While Kodak has not disappeared off the face of the earth it has shuttered its digital camera business and it is in the process of firing thousands of workers. Kodak has also been unsuccessful in selling its patent portfolio. In a first attempt at selling off its patent portfolio bids were only 20% to 25% of the $2 billion Kodak has hoped to bring bring in.

In its bankruptcy filing Kodak lists $5.1 billion in assets and $6.75 billion in debt.

The only improvements Kodak has seen in 2012 has been from its overseas markets where revenue is actually increasing.


apple maps : ehack

apple maps : ehack

The folks at Apple have a reputation for user-friendly design and careful incremental changes. That’s why the buggy mess that is Apple Maps has been such a surprise. Google had been providing the mapping data for iOS since the first iPhone launched back in 2007, but the increasingly adversarial relationship between the two companies eventually sent Cupertino off on a quest to do its own maps. This turns out to have been a mistake.

Apple bought several companies to bolster its mapping efforts, but the end result was just not very good. Users found a myriad of issues with the software including missing addresses, no public transit info, corrupted satellite data, entire cities missing or in the wrong place, and buggy navigation. There have even been reports recently that several dozen Australian iPhone users have been led dangerously astray by their phones, which incorrectly placed a city in the middle of a remote wilderness park.

Things got so bad in September that Apple CEO Tim Cook had to issue an apology for the fiasco and advised users to take a look at some alternative mapping apps while Apple sorted out the issues. This by itself is unprecedented. Apple’s mobile software chief Scott Forstall, and iOS Maps manager Richard Williamson have both been fired in the wake of the debacle.

Google released a new Google Maps app on iOS late in 2012. It quickly became the most downloaded free app in the App Store. How’s that humble pie tasting, Apple?

5.Facebook IPO Fails

facebook IPO fails : ehack

facebook IPO fails : ehack

Facebook’s arrival on the stock market was the most hyped-up tech IPO in recent memory, and while the company at first blamed issues with NASDAQ, the stock fell to less than half of its original value in the months after launch, and is just now starting to claw its way back. The bigger problem? It’s still not clear how the social network can extract lots of money from its 1 billion active users. The rush to monetize Facebook’s mobile products will define the company’s efforts in 2013, but the hits it took from the press and financial analysts in 2012 will not be soon forgotten.


Nokia Lumia 900 : ehack

Nokia Lumia 900 : ehack

Nokia and Microsoft teaming up seemed like a recipe for success. Shortly after the Lumia 900 was released however it quickly became clear that users were not interested in the device.

Shortly after being released to the public a software glitch was discovered which caused users to abandon the phone before massive adoption could be achieved.

Customers who purchased the phone quickly received a $100 credit and the phone was dropped to $99 with a two year contract. Stock prices at Nokia fell by nearly 50% following the monumental failure of the Lumia Windows Phone.

From entire company failures to tech that was obviously not tested properly prior to launch, we have seen plenty of tech turkeys in 2012, enough in fact to make us question what has happened to quality control in the tech sector.

7.RIM’s BlackBerry 10

BlackBerry 10 : ehack

BlackBerry 10 : ehack

2012 started on an upbeat note for Canadian smartphone pioneer Research in Motion (RIM). The old co-CEOs were gone and Thorsten Heins was newly at the helm. What followed was a year in which the only way RIM seemed to be able to make news was to announce that it had lost more money. And it did — a lot of it.

The light at the end of the tunnel was expected to be BlackBerry 10. Finally RIM would catch up with the competition and gets its mobile platform modernized. However, each quarterly report brought news of more delays. Rather than launching in 2012 as originally intended, BlackBerry 10 has been pushed to early 2013.

Even the company’s preferred narrative that BlackBerry is still wildly popular overseas is looking less plausible. RIM had to cut several thousand jobs last summer, and recent news hasn’t been encouraging either. Its revenue as reported in December is down 47% from last year, and it saw the first overall subscriber decrease in its history. RIM can’t afford another year like 2012.

I’m sure these technology behemoths didn’t go into 2012 expecting to stumble like they did. For some these snafus are just a momentary spot of embarrassment in an otherwise great year. For others, it’s a sign of major problems going forward. Here’s to a more productive 2013.

Read more at —

8. Microsoft Metro UI

metro_ui : ehack

metro_ui : ehack

Microsoft always seems to be walking back its naming schemes. Remember Windows Phone 7 Series? The Surface switcheroo? Windows/MSN Live/Mesh Skydrive? Redmond’s 2012 failure was with its prevalent Metro branding. Windows 8 brings the Metro UI and apps to the desktop, but now we don’t even know what to call it. Despite having a cadre of lawyers on retainer all over the world, no one seemed to notice that “Metro” was trademarked by someone else. Numerous reports point to a trademark challenge by Germany-based Metro AG. Now Metro has been replaced by — well, nothing really.

The company has been adamant that Metro was never supposed to be a consumer-facing term, but it was fairly prominent going all the way back to the launch of Windows Phone 7. So now developers can’t use the term, and Microsoft has been slow to come up with a reasonable alternative. This situation confuses the conversation because Windows 8 runs both “Metro” apps and regular Windows apps. The best option seems to be “Windows 8 style,” but that’s pretty awkward.

The embarrassment might have been lessened if Microsoft hadn’t pushed Metro to the forefront in Windows 8 with such insistence. The Desktop has been demoted to be “just another app.” Metro (or whatever they’re calling it) might make sense on a tablet, but users with a mouse are feeling perplexed. It may even be because of this mess that Windows boss Steven Sinofsky was fired.

Windows 8 didn’t get the big activation bump seen in the last release, and this despite having rock-bottom pricing. It’s been a lukewarm reception for Microsoft’s new OS, and that’s largely due to the Metro UI. It might be the right move down the road, but it’s a tough sell now.




ExtremeTech, TechBeat, CIO

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