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  • How to Create a Separate Home Partition After Installing Ubuntu

    - by Chris Hoffman
    Ubuntu doesn’t use a separate /home partition by default, although many Linux users prefer one. Using a separate home partition allows you to reinstall Ubuntu without losing your personal files and settings. While a separate home partition is normally chosen during installation, you can also migrate to a separate home partition after installing Ubuntu – this takes a bit of work, though. HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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  • Upcoming DotNetNuke Training for January 2011

    - by Chris Hammond
    With the New Year, why not resolve to learn more about DotNetNuke ? DotNetNuke is the most successful and widely adopted open source project on the Microsoft Stack. Its been around for eight years and isn’t going away anytime soon. While the software itself is written in VB.Net you are not limited to VB.Net when developing custom extensions for the platform, in fact, when I do my module development I do it primarily in C# out of preference. If you’re a developer out there who shuns learning a framework...(read more)

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  • How To Get Email Notifications Whenever Someone Logs Into Your Computer

    - by Chris Hoffman
    Do you have a computer that you don’t want other people accessing – perhaps a server? You can have Windows email you whenever someone logs into your computer (assuming it’s connected to the Internet), giving you peace of mind. We’ll be using the Windows Task Scheduler for this – it can send emails in response to a variety of events. The Task Scheduler’s built-in email feature isn’t as flexible as we’d like, so we’ll be using another tool. HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows? Java is Insecure and Awful, It’s Time to Disable It, and Here’s How

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  • FGLRX installation without main monitor

    - by Chris
    This is a spiritual follow up to this I am doing some modern OpenGL tutorials and I have found that MESA does not support openGL 3.0+, so I need to get back to FGLRX even if its given me grief in the past. Every time I have tried to install FGLRX drivers I generally get thrown to the terminal and have to do some recovery, etc. before I can get them to work. Problem is, now that my main monitor is borked, when I install FGLRX drivers I cannot boot to terminal. Question: How do I back up my current windowing so that when I (inevitably) lost my boot due to FGLRX installation, I can recover it with a livecd without reinstalling, and how can I install it without a main monitor?

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  • 6 Ways Windows 8 Is More Secure Than Windows 7

    - by Chris Hoffman
    Whatever you think of it, Windows 8 isn’t just a new interface slapped on top of Windows 7. Windows 8 has seen a lot of security improvements, including an integrated antivirus, an application reputation system, and protection from boot-time rootkits. There are also quite a few low-level security improvements under the hood. Microsoft hasn’t spelled out all of them, but Windows 8 manages memory in a more secure way and includes features that make security vulnerabilities harder to exploit. HTG Explains: Why It’s Good That Your Computer’s RAM Is Full 10 Awesome Improvements For Desktop Users in Windows 8 How To Play DVDs on Windows 8

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  • Ubuntu 12.04 Bootloader failed to install

    - by Chris
    Sorry about the excessively long question, but I figured giving more information would be better. I recently bought a new desktop for myself, running Windows 7. It has two hard drives, and I wanted to install Ubuntu on a small partition on the second hard drive. I created 25GB "free space" in Windows and ran a LiveCD install. I wanted to select the install options myself but accidentally selected "Install alongside Windows 7," but it seemed to pick up the free space and installed itself there as I wanted it to. However, I was told that the bootloader installation had failed. I chose to "Cancel installation," leaving my computer unable to boot. I wiped my computer and reinstalled Windows. After that, I tried installing Ubuntu through Windows using WUBI, once using files from my LiveCD and once downloading everything again. Both times the install succeeded, but both times when I restarted and tried to load Ubuntu, it gave me an error - wubildr.mbr was corrupt or missing. I checked in Windows - it was indeed present on the C:\ drive. I went back to the LiveCD installation, this time going the custom options route. I assigned 16GB to an Ext4 journaling file system and 10GB to a swap file. I got the same bootloader error as before. Being prompted to select a different partition to install the bootloader to, I first tried the partition Ubuntu was installed on. A window came up saying that the install had succeeded, but a second window gave me the same error and choices as before. I went through every single option it gave me, including the Windows partition and the hard drives themselves (dev/sda, dev/sdb). Same result. I then chose to not install a bootloader. Windows still works fine, and I assume Ubuntu has installed but is unbootable. Knowing that my computer could potentially brick itself again - and, this time around, with a lot of data to lose and hassle to go through if I mess it up - I really don't want to do anything without some advice. So I'll ask this: a) Why did the bootloader fail to install? Can I fix the error and install Ubuntu fresh? b) Is there any way to get around the error, install the bootloader, and point it towards an existing installation of Ubuntu? c) Is there a quicker and easier solution I might have missed? EDIT: Thanks for the tip, AthloX. After testing the liveCD in Virtualbox with no installation problems, I looked around for some alternate bootloaders but had no success. I attempted another install, which installed the bootloader and Ubuntu just fine but bricked Windows 7. I wiped both hard disks clean, including some "System Reserved" partitions I hadn't noticed before, before re-installing Windows 7 on one hard drive and immediately afterwards installing Ubuntu on the other. Now the computer boots into Windows, but I can pop into the BIOS at startup to boot into Ubunbtu via it's bootloader, and I'm guessing it'll only take a bit of poking at the BIOS to swap the load order. Many thanks!

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  • HTG Explains: Just How Bad Are Android Tablet Apps?

    - by Chris Hoffman
    Apple loves to criticize the state of Android tablet apps when pushing its own iPad tablets. But just how bad is the Android tablet app situation? Should you avoid Android tablets like the Nexus 7 because of the apps? It’s clear that Apple’s iPad is way ahead when it comes to the sheer quantity of tablet-optimized apps. It’s also clear that some popular apps — particularly touch-optimized games — only show up on iPad. But that’s not the whole story. The Basics First, let’s get an idea of the basic stuff that will work well for you on Android. An excellent web browser. Chrome has struggled with performance on Android, but hits its stride on the Nexus 7 (2013). Great, tablet-optimized apps for all of Google’s services, from YouTube to Gmail and Google Maps. Everything you need for reading, from Amazon’s Kindle app for eBooks, Flipboard and Feedly for new articles from websites, and other services like the popular Pocket read-it-later service. Apps for most popular media services, from Netflix, Hulu, and YouTube for videos to Pandora, Spotify, and Rdio for music. A few things aren’t available — you won’t find Apple’s iTunes and Amazon still doesn’t offer an Amazon Instant Video app for Android, while they do for iPad and even their own Android-based Kindle Fire devices. Android has very good app coverage when it comes to consuming content, whether you’re reading websites and ebooks or watching videos and listening to music. You can play almost any Android smartphone game, too. For content consumption, Android is better than something like Windows 8, which lacks apps for Google services like YouTube and still doesn’t have apps for popular media services like Spotify and Rdio. How Android Scales Smartphone Apps Let’s look at how Android scales smartphone apps. Now, bear with us here — we know “scaling” is a dirty word considering how poorly Apple’s iPad scales iPhone apps, but it’s not as bad on Android. When an iPad runs an iPhone app, it simply doubles the pixels and effectively zooms in. For example, if you had  Twitter app with five tweets visible at once on an iPhone and ran the same app on an iPad, the iPad would simply “zoom in” and enlarge the same screen — you’d still see five tweets, but each tweet would appear larger. This is why developers create optimized iPad apps with their own interfaces. It’s especially important on Apple’s iOS. Android devices come in all shapes and sizes, so Android apps have a smarter, more intelligent way to adapt to different screen sizes. Let’s say you have a Twitter app designed for smartphones and it only shows five tweets at once when run on a phone. If you ran the same app on a tablet, you wouldn’t see the same five tweets — you’d see ten or more tweets. Rather than simply zooming in, the app can show more content at the same time on a tablet, even if it was never optimized for tablet-size screens. While apps designed for smartphones aren’t generally ideal, they adapt much better on Android than they do on an iPad. This is particularly true when it comes to games. You’re capable of playing almost any Android smartphone game on an Android tablet, and games generally adapt very well to the larger screen. This gives you access to a huge catalog of games. It’s a great option to have, especially when you look at Microsoft’s Window 8 and consider how much better the touch-based app and game selection would be if Microsoft allowed its users to run Windows Phone games on Windows 8. 7-inch vs 10-inch Tablets The Twitter example above wasn’t just an example. The official Twitter app for Android still doesn’t have a tablet-optimized interface, so this is the sort of situation you’d have to deal with on an Android tablet. On the popular Nexus 7, Twitter is an example of a smartphone app that actually works fairly well — in portrait mode, you can see many more tweets on screen at the same time and none of the space really feels all that wasted. This is important to consider — smartphone apps like Twitter often scale quite well to 7-inch screens because a 7-inch screen is much closer in form factor to a smartphone than a 10-inch screen is. When you begin to look at 10-inch Android tablets that are the same size as an iPad, the situation changes. While the Twitter app works well enough on a Nexus 7, it looks horrible on a Nexus 10 or other 10-inch tablet. Running many smartphone-designed apps — possible with the exception of games — on a 10-inch tablet is a frustrating, poor experience. There’s much more white, empty space in the interface. It feels like you’re using a smartphone app on a large screen, and what’s the point of that? A tablet-optimized Twitter app for Android is finally on its way, but this same situation will repeat with many other types of apps. For example, Facebook doesn’t offer a tablet-optimized interface, but it’s okay on a Nexus 7 anyway. On a 10-inch screen, it probably wouldn’t be anywhere near as nice an experience. It goes without saying that Facebook and Twitter both offer iPad apps with interfaces designed for a tablet-size screen. Here’s another problematic app — the official Yelp app for Android. Even just using it on a 7-inch Nexus 7 will be a poor experience, while it would be much worse on a larger 10-inch tablet app. Now, it’s true that many — maybe even most — of the popular apps you might want to run today are optimized for Android tablets. But, when you look at the situation when it comes to popular apps like Twitter, Facebook, and Yelp, it’s clear Android is still behind in a meaningful way. Price Let’s be honest. The thing that really makes Android tablets compelling — and the only reason Android tablets started seeing real traction after years of almost complete dominance by Apple’s iPads — is that Android tablets are available for so much cheaper than iPads. Google’s latest Nexus 7 (2013) is available for only $230. Apple’s non-retina iPad Mini is available at $300, which is already $70 more. In spite of that, the iPad Mini has much older, slower internals and a much lower resolution screen. It’s not as nice to look at when it comes to reading or watching movies, and the iPad Mini reportedly struggles to run Apple’s latest iOS 7. In contrast, the new Nexus 7 has a very high resolution screen, speedy internals, and runs Android very well with little-to-no lag in real use. We haven’t had any problems with it, unlike all the problems we unfortunately encountered with the first Nexus 7. For a really comparable experience to the current Nexus 7, you’d want to get one of Apple’s new retina iPad Minis. That would cost you $400, another $170 over the Nexus 7. In fact, it’s possible to regularly find sales on the Nexus 7, so if you waited you could get it for just $200 — half the price of the iPad mini with a comparable screen and internals. (In fairness, the iPad certainly has better hardware — but you won’t feel if it you’re just using your tablet to browse the web, watch videos, and do other typical tablet things.) This makes a tablet like the popular Nexus 7 a very good option for budget-conscious users who just want a high-quality device they can use to browse the web, watch videos, play games, and generally do light computing. There’s a reason we’re focusing on the Nexus 7 here. The combination of price and size brings it to a very good place. It’s awfully cheap for the high-quality experience you get, and the 7-inch screen means that even the non-tablet-optimized apps you may stumble across will often work fairly well. On the other hand, more expensive 10-inch Android tablets are still a tougher sell. For $400-$500, you’re getting awfully close to Apple’s full-size iPad price range and Android tablets don’t have as good an app ecosystem as an iPad. It’s hard to recommend an expensive, 10-inch Android tablet over a full-size iPad to average users. In summary, the Android app tablet app situation is nowhere near as bad as it was a few years ago. The success of the Nexus 7 proves that Android tablets can be compelling experiences, and there are a wide variety of strong apps. That said, more expensive 10-inch Android tablets that compete directly with the full-size iPad on price still don’t make much sense for most people.  Unless you have a specific reason for preferring an Android tablet, it’s tough not to recommend an iPad if you’re looking at spending $400+ on a 10-inch tablet. Image Credit: Christian Ghanime on Flickr, Christian Ghanime on Flickr     

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  • "Progressive" JPEG: Why do many web sites avoid rendering JPEGs that way? Pros, cons?

    - by Chris W. Rea
    When JPEG images are used by a web page, they are typically rendered top-down ... but they can also be rendered using a mode called progressive JPEG, where the image starts out full-size, but blurry, and then gets sharper with successive passes, until it's fully loaded. Progressive loading requires the image have been saved that way. Why don't more web sites use progressive JPEG? What are the drawbacks? Is it simply a lack of tool support, or are these files somehow inferior to traditional top-down rendered JPEG images?

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  • What Web Technology to use for web app?

    - by Chris
    Want to get the opinions of the people of Stack Overflow. I am creating a web application that ideally will have some sort of desktop notification. i would love to do this in HTML5 but cant as need it to run on IE 8 and below. I have looked a Flex but I'm not 100% sure how to achieve desktop notifications when running as a web app. Has anyone had this dilemma or even know of anything that would be the best fit? All opinions are welcome, will help me out a lot

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  • 8 Ways to Tweak and Configure Sudo on Ubuntu

    - by Chris Hoffman
    Like most things on Linux, the sudo command is very configurable. You can have sudo run specific commands without asking for a password, restrict specific users to only approved commands, log commands run with sudo, and more. The sudo command’s behavior is controlled by the /etc/sudoers file on your system. This command must be edited with the visudo command, which performs syntax-checking to ensure you don’t accidentally break the file. HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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  • Start fail VMware-Player 3.1.5 on Ubuntu 12.04 32bit

    - by Chris Lee
    Install got no problem but at start of VMWare Player it want to compile and exit with this error: "Unable to build kernel module." Thats the log: Jun 05 00:03:36.153: app-3075712704| Log for VMware Workstation pid=3709 version=7.1.5 build=build-491717 option=Release Jun 05 00:03:36.153: app-3075712704| The process is 32-bit. Jun 05 00:03:36.153: app-3075712704| Host codepage=UTF-8 encoding=UTF-8 Jun 05 00:03:36.153: app-3075712704| Logging to /tmp/vmware-root/setup-3709.log Jun 05 00:03:36.284: app-3075712704| modconf query interface initialized Jun 05 00:03:36.284: app-3075712704| modconf library initialized Jun 05 00:03:36.336: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:36.350: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:36.371: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:36.417: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:36.429: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:36.521: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.526: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.529: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.533: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.536: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.579: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.583: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.586: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.589: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.593: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:36.602: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:36.624: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:39.677: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.689: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.694: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.697: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.701: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.711: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:39.733: app-3075712704| Your GCC version: 4.6 Jun 05 00:03:39.854: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.858: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.862: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.865: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:39.868: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:40.065: app-3075712704| Trying to find a suitable PBM set for kernel 3.2.0-24-generic-pae. Jun 05 00:03:40.066: app-3075712704| Building module vmmon. Jun 05 00:03:40.066: app-3075712704| Extracting the sources of the vmmon module. Jun 05 00:03:40.075: app-3075712704| Building module with command: /usr/bin/make -C /tmp/vmware-root/modules/vmmon-only auto-build SUPPORT_SMP=1 HEADER_DIR=/lib/modules/3.2.0-24-generic-pae/build/include CC=/usr/bin/gcc GREP=/usr/bin/make IS_GCC_3=no VMCCVER=4.6 Jun 05 00:03:42.016: app-3075712704| Failed to compile module vmmon! Is it a gcc problem ?

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  • Separate shaders from HTML file in WebGL

    - by Chris Smith
    I'm ramping up on WebGL and was wondering what is the best way to specify my vertex and fragment shaders. Looking at some tutorials, the shaders are embedded directly in the HTML. (And referenced via an ID.) For example: <script id="shader_1-fs" type="x-shader/x-fragment"> precision highp float; void main(void) { // ... } </script> <script id="shader_1-vs" type="x-shader/x-vertex"> attribute vec3 aVertexPosition; uniform mat4 uMVMatrix; // ... My question is, is it possible to have my shaders referenced in a separate file? (Ideally as plain text.) I presume this is straight forward in JavaScript. Is there essentially a way to do this: var shaderText = LoadRemoteFileOnSever('/shaders/shader_1.txt');

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  • How to Encrypt Your Home Folder After Installing Ubuntu

    - by Chris Hoffman
    Ubuntu offers to encrypt your home folder during installation. If you decline the encryption and change your mind later, you don’t have to reinstall Ubuntu. You can activate the encryption with a few terminal commands. Ubuntu uses eCryptfs for encryption. When you log in, your home directory is automatically decrypted with your password. While there is a performance penalty to encryption, it can keep private data confidential, particularly on laptops that may be stolen. HTG Explains: What Is RSS and How Can I Benefit From Using It? HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It HTG Explains: Learn How Websites Are Tracking You Online

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  • Naming Convention for Dedicated Thread Locking objects

    - by Chris Sinclair
    A relatively minor question, but I haven't been able to find official documentation or even blog opinion/discussions on it. Simply put: when I have a private object whose sole purpose is to serve for private lock, what do I name that object? class MyClass { private object LockingObject = new object(); void DoSomething() { lock(LockingObject) { //do something } } } What should we name LockingObject here? Also consider not just the name of the variable but how it looks in-code when locking. I've seen various examples, but seemingly no solid go-to advice: Plenty of usages of SyncRoot (and variations such as _syncRoot). Code Sample: lock(SyncRoot), lock(_syncRoot) This appears to be influenced by VB's equivalent SyncLock statement, the SyncRoot property that exists on some of the ICollection classes and part of some kind of SyncRoot design pattern (which arguably is a bad idea) Being in a C# context, not sure if I'd want to have a VBish naming. Even worse, in VB naming the variable the same as the keyword. Not sure if this would be a source of confusion or not. thisLock and lockThis from the MSDN articles: C# lock Statement, VB SyncLock Statement Code Sample: lock(thisLock), lock(lockThis) Not sure if these were named minimally purely for the example or not Kind of weird if we're using this within a static class/method. Several usages of PadLock (of varying casing) Code Sample: lock(PadLock), lock(padlock) Not bad, but my only beef is it unsurprisingly invokes the image of a physical "padlock" which I tend to not associate with the abstract threading concept. Naming the lock based on what it's intending to lock Code Sample: lock(messagesLock), lock(DictionaryLock), lock(commandQueueLock) In the VB SyncRoot MSDN page example, it has a simpleMessageList example with a private messagesLock object I don't think it's a good idea to name the lock against the type you're locking around ("DictionaryLock") as that's an implementation detail that may change. I prefer naming around the concept/object you're locking ("messagesLock" or "commandQueueLock") Interestingly, I very rarely see this naming convention for locking objects in code samples online or on StackOverflow. Question: What's your opinion generally about naming private locking objects? Recently, I've started naming them ThreadLock (so kinda like option 3), but I'm finding myself questioning that name. I'm frequently using this locking pattern (in the code sample provided above) throughout my applications so I thought it might make sense to get a more professional opinion/discussion about a solid naming convention for them. Thanks!

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  • I cannot install a proporietary fglrx driver

    - by Chris
    OK my install failed while installing the amd proprietary driver. I keep seeing references to a Nvidia driver, but I do not have or even want anything pertaining to Nvidia. Here are my latest entries for the jockey.log: 2012-10-11 20:31:24,103 DEBUG: fglrx_updates is not the alternative in use 2012-10-11 20:31:24,119 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-11 20:31:24,119 DEBUG: fglrx_updates is not the alternative in use 2012-10-11 20:31:24,322 DEBUG: fglrx.enabled(fglrx): target_alt /usr/lib/fglrx/ld.so.conf current_alt /usr/lib/fglrx/ld.so.conf other target alt /usr/lib/fglrx/alt_ld.so.conf other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-11 20:31:24,323 DEBUG: XorgDriverHandler(%s, %s).enabled(): No X.org driver set, not checking 2012-10-11 20:31:24,450 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-11 20:31:24,450 DEBUG: fglrx_updates is not the alternative in use 2012-10-11 20:31:24,465 DEBUG: fglrx.enabled(fglrx_updates): target_alt None current_alt /usr/lib/fglrx/ld.so.conf other target alt None other current alt /usr/lib/fglrx/alt_ld.so.conf 2012-10-11 20:31:24,465 DEBUG: fglrx_updates is not the alternative in use

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  • 7 Tips to Get the Most Out of BleachBit, a “CCleaner for Linux”

    - by Chris Hoffman
    Like CCleaner on Windows, BleachBit frees space by deleting unimportant files and helps maintain your privacy by deleting sensitive data. And, just like CCleaner, there’s more you can do with BleachBit than just clicking a single button. BleachBit is available in Ubuntu’s Software Center and most other Linux distributions’ software repositories. You can also download it from the BleachBit website – it even runs on Windows, too. HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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  • Is it OK to learn an algorithm from an open source project, and then implement it in a closed source project?

    - by Chris Barry
    Reference The post that started it all In order to clear up the original question I asked in a provocative manner, I have posed this question. If you learn an algorithm from an open source project, is it OK to use that algorithm in a separate closed sourced project? And if not, does that imply that you cannot use that knowledge ever again? If you can use it, what circumstance could that be? Just to clarify, I am not trying to evade a licence, otherwise I would not have asked the question in the first place. I believe this presents a difficult question and it is interesting to know where the debate can end up.

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  • Windows 7 complaint

    - by Chris Williams
    Let me start by saying that I love Windows 7. I think it's the best OS that Microsoft has put out in ages, possibly ever. However, I do have one little complaint. Actually it's not that little, it's become a real pain in the butt for me. I'm talking about Forced Updates. Yes, I know it's always been a problem and that Windows would occasionally force a reboot while you were away, in order to install some important update. That's not quite what I'm referring to. I mean the new "feature" where you don't have the choice to skip updates when shutting down. This isn't a big deal to those of you with desktop machines, but for those of us with laptops, it is rapidly becoming an unforgivable pain in the ass. Let me see if I can make myself a little clearer... If I am shutting down my LAPTOP, 99% of the time it's because I need to get up and go. Not wait around for FORCED UPDATES!! I travel a lot, and there are few things more annoying than shutting down to head to the airport, or shutting down so I can board my flight, or shutting down because we're about to land, etc... and having to wait 5-10 minutes while Win 7 does it's thing. It's damn inconvenient. There has to be a way you can detect if I'm on a laptop and give me the option to postpone updates, or skip them or (here's a thought) run them on startup instead of on shutdown. I'm usually not in a hurry when my machine is booting up, but if I'm powering down it's because I'm ready to GO! Please fix this. Windows 7 rocks in almost every other way I can think of.

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  • HTG Explains: How Windows 8's Secure Boot Feature Works & What It Means for Linux

    - by Chris Hoffman
    Whether you plan on using Windows 8 or not, everyone buying a PC in the future will end up with the Microsoft-driven Secure Boot feature enabled. Secure Boot prevents “unauthorized” operating systems and software from loading during the startup process. Secure Boot is a feature enabled by UEFI – which replaces the traditional PC BIOS – but Microsoft mandates specific implementations for x86 (Intel) and ARM PCs. Any computer with a Windows 8 logo sticker has Secure Boot enabled. Image Credit: Kiwi Flickr HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization HTG Explains: What Is RSS and How Can I Benefit From Using It?

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  • How to Multitask in the Linux Terminal: 3 Ways to Use Multiple Shells at Once

    - by Chris Hoffman
    The Linux terminal has rich multitasking capabilities. You can switch between the virtual consoles already running on your system, use Bash job control to run processes in the background, and take advantage of GNU screen, a terminal “window manager.” You don’t have to stick to a single command at a time. Whether you want to run a process in the background and revisit it occasionally or run multiple time-consuming tasks at once, Linux offers several options. How to Stress Test the Hard Drives in Your PC or Server How To Customize Your Android Lock Screen with WidgetLocker The Best Free Portable Apps for Your Flash Drive Toolkit

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  • Stupid Geek Tricks: How To Download Firefox On a New Computer Without Using Internet Explorer

    - by Chris Hoffman
    Internet Explorer-haters often say that the only good use for Internet Explorer is downloading Firefox or Chrome. But if you really don’t like IE, you can use Windows’ built-in FTP support to download and install Firefox without ever opening IE. Sure, you could just open Internet Explorer and download Firefox from Mozilla’s website, but where’s the geeky fun in that? This trick is about Firefox because Mozilla provides an FTP server, while Google doesn’t seem to. Downloading Firefox without using Internet Explorer may also come in handy if Internet Explorer is crashing and isn’t working properly on your system. 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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  • Announcing Oracle Knowledge 8.5: Even Superheroes Need Upgrades

    - by Chris Warner
    It’s no secret that we like Iron Man here at Oracle. We've certainly got stuff in common: one of the world’s largest technology companies and one of the world’s strongest technology-driven superheroes. If you've seen the recent Iron Man movies, you might have even noticed some of our servers sitting in Tony Stark’s lab. Heck, our CEO made a cameo appearance in one of the movies. Yeah, we’re fans. Especially as Iron Man is a regular guy with some amazing technology – like us. But Like all great things even Superheroes need upgrades, whether it’s their suit, their car or their spacestation. Oracle certainly has its share of advanced technology.  For example, Oracle acquired InQuira in 2011 after years of watching the company advance the science of Knowledge Management.  And it was some extremely super technology.  At that time, Forrester’s Kate Leggett wrote about it in ‘Standalone Knowledge Management Is Dead With Oracle's Announcement To Acquire InQuira’ saying ‘Knowledge, accessible via web self-service or agent UIs, is a critical customer service component for industries fielding repetitive questions about policies, procedures, products, and solutions.’  One short sentence that amounts to a very tall order.  Since the acquisition our KM scientists have been hard at work in their labs. Today Oracle announced its first major knowledge management release since its acquisition of InQuira: Oracle Knowledge 8.5. We’ve put a massively-upgraded supersuit on our KM solution because we still have bad guys to fight. And we are very proud to say that we went way beyond our original plans. So what, exactly, did we do in Oracle Knowledge 8.5? We did what any high-tech super-scientist would do. We made Oracle Knowledge smarter, stronger and faster. First, we gave Oracle Knowledge a stronger heart: Certified on Oracle technologies, including Oracle WebLogic Server, Oracle Business Intelligence, Oracle Exadata Database Machine and Oracle Exalogic Elastic Cloud. Huge scaling and performance improvements. Then we gave it a better reach: Improved iConnect functionality that delivers contextualized knowledge directly into CRM applications. Better content acquisition support across disparate sources. Enhanced Language Support including Natural Language search support for 16 Languages. Enhanced Keyword Search for 23 authoring languages, as well as enhanced out-of-the-box industry ontologies covering 14 languages. And finally we made Oracle Knowledge ridiculously smarter: Improved Natural Language Search and a new Contextual Answer Delivery that understands the true intent of each inquiry to deliver the best possible answers. AnswerFlow for Guided Navigation & Answer Delivery, a new application for guided troubleshooting and answer delivery. Knowledge Analytics standardized on Oracle’s Business Intelligence Enterprise Edition. Knowledge Analytics Dashboards optimized search and content creation through targeted, actionable insights. A new three-level language model "Global - Language - Locale" that provides an improved search experience for organizations with a global footprint. We believe that Oracle Knowledge 8.5 is the most sophisticated KM solution in existence today and we’ve worked very hard to help it fulfill the promise of KM: empowering customers and employees with deep insights wherever they need them. We hope you agree it’s a suit worth wearing. We are continuing to invest in Knowledge Management as it continues to be especially relevant today with the enterprise push for peer collaboration, crowd-sourced wisdom, agile innovation, social interaction channels, applied real-time analytics, and personalization. In fact, we believe that Knowledge Management is a critical part of the Customer Experience portfolio for success. From empowering employee’s, to empowering customers, to gaining the insights from interactions across all channels, businesses today cannot efficiently scale their efforts, strengthen their customer relationships or achieve their growth goals without a solid Knowledge Management foundation to build from. And like every good superhero saga, we’re not even close to being finished. Next we are taking Oracle Knowledge into the Cloud. Yes, we’re thinking what you’re thinking: ROCKET BOOTS! Stay tuned for the next adventure… By Nav Chakravarti, Vice-President, Product Management, CRM Knowledge and previously the CTO of InQuira, a knowledge management company acquired by Oracle in 2011. 

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  • Alan Turing Needs Your Help

    - by Chris Massey
    Well. sort of. Clearly, you are using a computer. If you are on this site, you are probably quite familiar with computers as artifacts of our modern society. Hopefully, you are also familiar with the fact that Alan Turing, logician and mathematician extraordinaire, was instrumental in laying down the foundations of modern computer science, and did a little work to help turn the tide of WWII in the Allies' favor. Hold that thought. A phenomenal collection of Turing's papers (including his first ever...(read more)

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  • 14 Special Google Searches That Show Instant Answers

    - by Chris Hoffman
    Google can do more than display lists of websites – Google will give you quick answers to many special searches. While Google isn’t quite as advanced as Wolfram Alpha, it has quite a few tricks up its sleeve. We’ve also covered searching Google like a pro by learning the Google search operators – if you want to master Google, be sure to learn those. How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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  • Is there any reason not to go directly from client-side Javascript to a database?

    - by Chris Smith
    So, let's say I'm going to build a Stack Exchange clone and I decide to use something like CouchDB as my backend store. If I use their built-in authentication and database-level authorization, is there any reason not to allow the client-side Javascript to write directly to the publicly available CouchDB server? Since this is basically a CRUD application and the business logic consists of "Only the author can edit their post" I don't see much of a need to have a layer between the client-side stuff and the database. I would simply use validation on the CouchDB side to make sure someone isn't putting in garbage data and make sure that permissions are set properly so that users can only read their own _user data. The rendering would be done client-side by something like AngularJS. In essence you could just have a CouchDB server and a bunch of "static" pages and you're good to go. You wouldn't need any kind of server-side processing, just something that could serve up the HTML pages. Opening my database up to the world seems wrong, but in this scenario I can't think of why as long as permissions are set properly. It goes against my instinct as a web developer, but I can't think of a good reason. So, why is this a bad idea? EDIT: Looks like there is a similar discussion here: Writing Web "server less" applications EDIT: Awesome discussion so far, and I appreciate everyone's feedback! I feel like I should add a few generic assumptions instead of calling out CouchDB and AngularJS specifically. So let's assume that: The database can authenticate users directly from its hidden store All database communication would happen over SSL Data validation can (but maybe shouldn't?) be handled by the database The only authorization we care about other than admin functions is someone only being allowed to edit their own post We're perfectly fine with everyone being able to read all data (EXCEPT user records which may contain password hashes) Administrative functions would be restricted by database authorization No one can add themselves to an administrator role The database is relatively easy to scale There is little to no true business logic; this is a basic CRUD app

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