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2.10.2011

iPad Review

I always thought that I had a phobia to Apple products due to their incompatibility to most enterprise and professional programs on the market. I have especially criticized the iPad for being just a large iPod with no added functionality. But recently, I was looking for a portable system to take with me between my house and college. Someone suggested the iPad, and I laughed at the notion. However, I looked into it and decided I would go ahead and take the plunge. In no time, I had the iPad ordered.

2.08.2011

Power user features made easy: System Imaging

System images have long been used in corporate network environments for simultaneously restoring scores of computers to their original states.  The same technique also works well on the small scale.  Many people complain about their computers becoming slow over time, at which point, reformatting and reinstalling the operating systems becomes the only option.  This is where imaging saves the day.  The average user doesn't want to spend the time to back up all of their data and reinstall all of their programs, a process that can take days.  A system image is essentially a complete copy of your system state at the time it is made.  When the image is written back to the drive, your system will be exactly the way it was when you made the image.  I suggest making an image a week to a month after getting a new computer, this way you have time to install programs and tweak settings to your liking.  Hit read more to see how to create and restore from system images in Windows 7.

2.05.2011

How to Re-enable Aero Transparency in Windows 7

When running an older piece of software or game, transparency in Windows 7 will be disabled for compatibility reasons.  Normally after the program is closed, transparency will enable again and your windows will be pretty.  On occasion however, Windows will not restart Aero, the service that handles transparency.  You can manually restart Aero without rebooting.  To do this, open the "Start" menu and type cmd.  Now right on "cmd.exe" and choose "Run as Administrator."  Then type net stop uxsms, wait for the service to stop, then type  net start uxsms.  Now your windows should look "normal" again with transparency.  This fix should also work under Windows Vista.

2.03.2011

Blocking ads in Firefox and Chrome

Nobody really likes ads on web pages or enjoys watching crappy commercials. Devices like Tivo give television viewers the option to jump through commercials.  If people skip TV commercials, then why would people put up with huge flashing ads on web pages?  Is it because people don't know about a way to remove ads?  Ahh, but there is an easy solution to block ads.  AdBlock Plus is an extension for Firefox and Chrome which automatically filters most ads from pages, and can even stop the ads inside Youtube videos from appearing.

1.31.2011

Ask and Ye shall receive

A few days ago while verifying my online bank statement with my accounting software, I noticed a small difference in my savings account.  My online banking website noted two small charges for some kind of maintenance fee.  What the hell?  A maintenance fee on my savings account?  The fees were worth more than I would make in interest over a few years.  A little ticked, I contemplated what to to.  I could just sit and be pissed about it, but I decided to call my bank and complain.  The helpful lady who answered the phone quickly reversed the charges and changed my account to a package that didn't have the maintenance fees.  I didn't even have to threaten to take my money to another bank.  She just told me that I had an account with fees and fixed the problems.  Just like that.  The whole ordeal took less than ten minutes including time on hold.  I guess that the banks figure most people will accept the charges without fight, so the people that do call are the ones that get their money back.  Sometimes, all you have to do is ask.

1.30.2011

Diagnosing network problems in Windows

We all have those days where our computers give us nothing but trouble.  Even tech experts are not immune to problems.  Network connectivity issues are among the most common of problems, and are one of the most difficult for mainstream users to fix unaided.  Next time you have a have trouble connecting to the internet, try diagnosing the issue yourself before wasting your time calling tech support.

1.29.2011

Managing multiple email accounts with Thunderbird

If you are like me , then you probably have more than one email account.  And really, who doesn't these days.  You may even have more than one Gmail account, which can be hard to manage unless you have multiple sign in enabled in you Gmail settings.  But by far the easiest way to manage all of your email accounts in one place is with Thunderbird.  Thunderbird is an email client by Mozilla, the makers of Firefox.

Whether you run Windows, Mac or Linux, Thunderbird will work for you.  The newest version of T-Bird makes setting up accounts really easy.  You don't have to enter the name of your email servers anymore.  When you go to make an account, it will ask for your name, email address, and password.  Thunderbird figures out all the rest and finishes setting up you accounts.  It also has a feature called unified folders.  This  lets you view all your in-boxes, sent mail, trash, and archived mail from all your accounts together.  Of course you can still view them separately if you prefer.  Another handy feature of T-bird is the search feature.  Most other email clients have the search buried in some menu, but T-bird puts it right on the main page where it's easy to get to.  You also don't need to choose filters anymore before searching.  And, just like Firefox, Thunderbird has an extensive library of extensions if the vanilla program doesn't do everything you need it to do.  There are lots of extensions which add all sorts of functionality, including calendars, contact management, and news reading.  I use the Zindus contact sync extension to synchronize my contacts back and forth between my Gmail accounts.  This is useful when I have to log into the Gmail website from another computer, because all of my Thunderbird contacts will show up in Gmail.  Of course, these are just a few noteworthy features of Thunderbird, but there are many more.

If you are looking for a better way to read your email, try Thunderbird.   It is available here at Mozilla's website.

1.28.2011

Catalyst 11.1 Drivers now available for ATI/AMD video cards

The long wait is finally over, as AMD has released its new Catalyst 11.1 driver.  This driver brings native Linux support for the Radeon 6xxx series.  Sadly, my card still does not seem to be recognized by the driver properly.  I will have to do some digging in order to find out what is wrong here.  The driver also offers performance improvements on Left 4 Dead 2 on the Radeon 6xxx series under Windows, although I have not been able to confirm this yet.  As soon as I get a reason to boot back into Windows, I will get some performance numbers.  Download the new driver here if you have an ATI/AMD card.

1.26.2011

Strange New Worlds

No, I am not talking about exploring outer space or visiting alien planets.  What I am referring to is the world of open source software, and more specifically, Linux.
I had previously rejected Linux as being a viable replacement for an everyday desktop operation system, but now that I have been using it for a while, I realize just how wrong I was.  Windows fanboys will claim that the average user won't like Linux because the average user does not want to use a command line.  Or because it doesn't run their favorite programs.  The thing is, the average user doesn't have to use a command line, and Linux doesn't have to run their favorite programs.

1.25.2011

Wifi Hacking Part 1: Breaking WEP keys

In a previous post, I mentioned that I would provide tutorials for some of the things I am learning to do.  It has been said that one of the best ways to learn something is to teach it.  Today I will demonstrate how to crack a WEP key for the purpose of gaining access to a WEP protected wireless network.

Note:  This tutorial is intended for educational purposes only.  I do not encourage nor endorse the use of these tools for malicious or illegal use.  Do not go steal your neighbors wifi!

To perform this the operations detailed in this tutorial you will need the following:
  • A compatible wireless adapter.  I use the TP-Link TL-WN321G.  It's only ten bucks and works out-of-the-box with Linux.
  • Aircrack-ng suite--  This comes preinstalled on BackTrack 4, or can be acquired on Ubuntu by typing sudo apt-get install aircrack-ng
  • A wireless network to perform these "attacks" on i.e. one that you own or have permission to use.
  • GNU Macchanger-- also preinstalled on BT4 or can be aquired on ubuntu by typing sudo apt-get install macchanger
  • A computer running some flavor of Linux.  Either the aforementioned Backtrack or ubuntu will work just fine.  Others will also work, but those are the two I have used.

1.22.2011

The Most Powerful Security Tool

Judging from the title of this post, one may presume that I am going to recommend some great new anti-virus software, firewall, or password manager. But that presumption would be incorrect. What most folks do not realize is that the best security tool available is free and can be used by anyone. I am talking about knowledge. The best way to protect yourself and your data is to educate yourself about the tactics used by attackers.

Too many people believe that they are secure just because they have a piece of software installed that said "Protects from viruses and hackers" on the back or the box. The problem here is, that most of the real cyber-security threats today do not exploit computer code, but rather exploit a user's lack of knowledge. It is these social engineering threats that one must be aware of. Scams in the form of phishing emails are the most prominent example of this. Do not click links in emails from people you don't know. Do not click on those "videos" that a "friend" posts on your Facebook wall asking you to download a special video player. I think you get the idea. When in doubt, do not click.

Another extremely dangerous threat and all-too-common threat to the user, is the user itself. Too many times do people use the same password for every website that they create an account at, and too often is it some easily guessable piece of information, such as a pet's name, phone number, or birthday. Creating good strong passwords is an excellent place to start for anyone looking to increase security. For example, anyone who has had their Facebook, YouTube, Myspace, or email accounts hacked, probably used a poor password made of readily available personal information. A good rule of thumb is that any password should be at least eight characters long, and should contain at least one number, punctuation and uppercase letter. Skimping on password strength is the easiest and most surefire way to get yourself "hacked."

Please take this advice into consideration next time you get a strange looking email, or need to create a new online account. Don't expect some piece of software or some company to save your cyber-bacon. Just remember that it is up to you to make sure your digital assets are protected.

1.20.2011

Hacking to Learn

These days the word hacker carries a negative connotation for most people. Whether its a misconception caused by the mainstream media, or an individual's own experience with data theft, most non-geeks think of hackers as being some kind of criminals. While it may be true that there are some hackers out there that use their skills for personal gain, most geeks like myself see hacking in a different way.

For the non-criminal geeks, hacking is something to be taken as a challenge to prove one's skills. Knowing how to crack a WEP key for someone's wireless network can be used for both good and bad. Of course you could leech Wi-Fi from your neighbors, but the opposite argument also applies. You could instead use your skills to show your neighbors that they have a security issue, and that you can fix it for them. That is the essence of offensive security. In order to be able to defend a system from penetration, one must know what that system's vulnerabilities are. Consider this. Most people believe that their houses are secure, but if locked out of their own houses, could probably find a way in. The same principle applies to network security.

I have taken it upon myself to learn this other side of security, and have been coming along with it within the last few weeks. I have already learned how to crack WEP using aircrack-ng on Linux and am currently tackling WPA cracking. If you are a geek and have an interest in learning these tools, I encourage you to use them for good. Backtrack 4 is the best way to start, as it contains almost every cracking, hacking, and penetration tool one would ever need. Please don't hack anyone's networks without permission, or sniff passwords at a coffee shop, because both of these could land you some jail time.

I will write follow-up articles, and possibly tutorials on how to use these tools, so please continue to follow my blog if you are interested.

11.07.2010

An Analogy to Explain Computers to Novices

Imagine that the inside of you computer is an office cubicle. The office cubicle has a few items of interest. In the office sits a desk, a file cabinet, an office worker seated in a chair, and a special fax machine. First of all, the file cabinet represents your hard drive. This is where all information is stored. The desk represents the memory or RAM of your computer. This is where all the files currently in use are at. Next, the office worker represents the CPU of your computer. He is the one that does all the real work around here. And lastly, the special fax machine represnts a graphics card. When the boss needs to see something, the worker puts a paper on the fax machine and it comes out on the other end of the line as a picture.

2.08.2010

Cranking up the heat

It has been quite a while for me, but I have finally got my computer back to running Folding@Home. Folding@Home (F@H or Folding for short), is a distributed computing project maintained by Stanford University, which benefits disease research. The program uses you CPU or graphics card to simulate protein folding, hence the name. Anyways, I recently purchased an Nvidia 8600 GTS graphics card from a friend. While I current graphics card is faster than the 8600, I intended to use them in tandem for different purposes. My faster ATI card drives my displays that I uses for games and work, and the 8600 runs Folding non-stop. This gives me the advantage of using a graphics card for Folding, which is faster than regular CPU folding, but at the same time be able to do all of my normal work without lagging. Although I could settle for the 1800 points per day that my graphics card can manage alone, I don't want to. In a quest for more folding power, I have created two virtual machines running Ubuntu Linux to run on my ultra-fast CPU. You may ask, why go with virtual machines? Isn't that slower than running a program natively? Yes and no. In this case, I choose to run the Folding client in Linux because the Linux version can make use of more efficient F@H (a2) cores which are much faster. However running the a2 cores in a virtual machine is slower than running them on an actual Linux machine. Now when I fire up both virtual machines and the GPU core, I can fold about 6000 points per day. With all those processors running, I end up with a lot of heat. My 8600 GTS card averages 70C folding, and my Core i7 CPU averages about 58C.

12.17.2009

Arnold Schwarzenegger Research Paper

I have just finished writing a research paper on Arnold Schwarzenegger. The topic of the paper is how an athlete, in my case Arnold Schwarzenegger, has contributed to society. Now that it is finalized, I have chosen to release the paper under Creative Commons licensing. It is free for the taking, modification and publication. The paper in PDF format can be found here. The Open Office Document format can be downloaded here. They will also be found under the files link on my blog.


Creative Commons License
Arnold Schwarzenegger by Benjamin Daschel is licensed under a Creative Commons Attribution 3.0 United States License.
Based on a work at dl.dropbox.com.