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• How DNS Works [Video]

  - by Jason Fitzpatrick

  Want an easy and visual way to explain DNS to a curious friend or cubemate? This clean and simple short video does a great job highlighting exactly what goes on during a typical DNS request. Last month we explained what DNS is and showed you why you might want to use alternate DNS servers; this short video serves as an excellent visual companion for our article. How DNS Works [YouTube] 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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• Canada vs Norway

  During the winter Olympics, I had a little bet with Sondre Bjells.  Sondre is the RD for Olso, Norway, a rising rock star in the .NET world and a very great guy.  The bet was that if Canada would win Gold against Norway in the man curling final, I would wear something funny and Norwegian like a Viking hat at Mix while Sondre would wear a Canadian jersey. Well, guess who won? You know what?  I glad that Norway didnt win because I fear I would have had to wear the famous Norwegian...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• YouTube: Tips by Bitwise Courses on NetBeans

  - by Geertjan

  I really like the potential of YouTube in providing a platform for short info clips that take not much time to produce and about as much time to consume. Huw Collingbourne's Bitwise Courses channel is full of exactly this kind of YouTube clip. Several of his YouTube clips are about or make use of NetBeans. The related Twitter account is @bitwisecourses and the homepage is bitwisecourses.com. Here's a great example, the latest YouTube clip created by Bitwise Courses. Very clear and simple explanation, on a specific and narrow topic, and very short and sweet. And very useful! Didn't know about this feature myself. Direct link to the movie: https://www.youtube.com/watch?v=b0fKT_hFQpU Here's to more of these, they're wonderful. More such YouTube clips are needed, short and precise, on very specific topics. And I'm very happy to promote them, as you can see.

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• Unity GUI pauses/freezes for less than a few seconds

  - by Ahmad Nassri

  I've just got my new Lenovo ThinkPad X220 with Intel HD graphics (I'm not sure what the chip is) and I've installed Natty. Everything works great out of the box, except there are short pauses/freezes in the UI that randomly occur, they last less than 2 seconds, actions are still taking place in the background (like typing) when the UI un-freezes I can see the characters I've typed, the app I've clicked, loaded . I can confirm that this is only happening with the new Natty 3D interface, I've tried 2D and the classic interface and there were no issues. Googling this topic seems challenging as I can't relate the problem in keywords. And I keep getting results relating to full GUI freeze which I don't have. This is troubling since I have Natty 3D running on older machines without any issues . I wonder if anybody else have experienced this or came across this issue before. Thanks.

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• SQLBits - Fusion IO and Attunity confirmed as exhibitors

  - by simonsabin

  We are very excited that Attunity are going to be exhibiting at SQLBits VI, they must have a great product because any client I see that is integrating SQL with other stores such as DB2 and Oracle seem to be using Attunity's providers. On top of that we have a new exhibitor. Fusion IO will be coming along and I hope will be bringing some amazing demos of their kit. SSD storage is the future and Fusion IO are at the top of the game. Many in the SQL community have said that SSD for tempdb is just awesome, come and have a chat with the guys to talk about your high performance storage needs.

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• SQLBits - Fusion IO and Attunity confirmed as exhibitors

  - by simonsabin

  We are very excited that Attunity are going to be exhibiting at SQLBits VI, they must have a great product because any client I see that is integrating SQL with other stores such as DB2 and Oracle seem to be using Attunity's providers. On top of that we have a new exhibitor. Fusion IO will be coming along and I hope will be bringing some amazing demos of their kit. SSD storage is the future and Fusion IO are at the top of the game. Many in the SQL community have said that SSD for tempdb is just awesome, come and have a chat with the guys to talk about your high performance storage needs.

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• IOUC Summit: Open Arms and Cheese Shoes

  - by Justin Kestelyn

  Last week's International Oracle User Group Committee (IOUC) Summit at Oracle HQ was a high point of the past year, for a number of reasons: A "quorum" of Java User Group leaders, several Java Champions among them, were in attendance (Bert Breeman, Stephan Janssen, Dan Sline, Stephen Chin, Bruno Souza, Van Riper, and others), and it was great to get face time with them. Their guidance and advice about JavaOne and other things are always much appreciated. Mix in some Oracle ACE Directors (Debra Lilley, Dan Morgan, Sten Vesterli, and others), and you really have the making of a dynamic group. Stephan describes it best: "We (the JUG Leaders) discovered that behind the more formal dress code the ACE directors are actually as crazy as we are." (See link below for more.) Thanks to Bert's (NLJug) kindness, I am now the proud owner of a bonafide, straight-from-the-NL cheese shoe. How the heck did he get this through security? I suggest that you also read more robust reports from Stephan, Arun Gupta, and of course "Team Stanley."

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• Women in Technology Microsoft Career Webcast: Learn More About Microsoft Services Roles

  - by Lara Rubbelke

  Since I joined Microsoft over 2 1/2 years ago, many of my friends and colleagues ask me how I like it and how things are going. To be more precise, often these friends tip their heads to the side and ask with great concern “How are you doing? Are you working all the time?”. In many cases, I think this would be the same manner that they may have inquired on my state after a death in the family:-) I don’t begrudge anyone for how they approach me in my choice to join Microsoft, and fully appreciate...(read more)

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• How to impove Ubuntu performance on netbook

  - by Alexey Shytikov

  Most recent Ubuntu 12.04 seems to be quite nice and Unity (3D/2D) works fine for me, however not on my old Acer Aspire One any more. There was a times, when I switched from Windows XP to Ubuntu and was happy about system looks, effects and speed... now I attend to think that XP was really great comparing with 12.04. I have found similar questions here but no reasonable answer: how to lower CPU usage for Unity (3D/2D) and memory consumption for Ubuntu 12.04. With new interface I could not find how to disable background services... It's Linux, it's should be the way to optimize without buying new PC... Please share your recipe!

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• OT: Airlines and Podcasts

  - by Greg Low

  Those that know me know that I spend an inordinate amount of time on airlines. I also love podcasts, as you can tell from my www.sqldownunder.com site and show. So anything that combines the two is just awesome. Fly With Joe fits that perfectly. Joe D'Eon provides great insights in his show. I was sad last year that he hadn't posted many shows. I've also been quiet for a couple of months (but that's about to change with a bunch of SQL Server 2008 R2 shows). But I've been so pleased that Joe's got...(read more)

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• Europe's Largest Customer Engagement Conference

  - by Charles Knapp

  What have Ben & Jerry's, HSBC, Innocent, LoveFilm, Oracle, Orange, Virgin, and other leaders learned about innovating to build customer loyalty? Loyalty World will help you better understand, engage and retain your customers. For example, Oracle's Melissa Boxer will deliver a Keynote on "Integrating Social, Marketing, and Loyalty to Deliver Great Customer Experiences." Sundar Swaminathan will speak on "Powering Rich Cross-Channel Customer Experiences with Next-Gen Loyalty Programs." You'll learn best practices from global thought leaders who are producing real results. Learn more about the Conference.

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• Follow-up Answers for my Australia Classes

  - by Kalen Delaney

  I was out of the country for the last two weeks of March, delivering classes in Brisbane and Sydney, which were organized by WardyIT . It was a great visit and there were 24 terrific students! As is sometimes (perhaps often?) the case, there were questions posed that I couldn’t answer during class, so here are a couple of follow-up answers. 1. I brought up the fact that SQLS 2012 generates a warning message when there are ‘too many’ Virtual Log Files (VLFs) in a database. (It turns out the message...(read more)

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• Design Code Outside of an IDE (C#)?

  - by ryanzec

  Does anyone design code outside of an IDE? I think that code design is great and all but the only place I find myself actually design code (besides in my head) is in the IDE itself. I generally think about it a little before hand but when I go to type it out, it is always in the IDE; no UML or anything like that. Now I think having UML of your code is really good because you are able to see a lot more of the code on one screen however the issue I have is that once I type it in UML, I then have to type the actual code and that is just a big duplicate for me. For those who work with C# and design code outside of Visual Studio (or at least outside Visual Studio's text editor), what tools do you use? Do those tools allow you to convert your design to actual skeleton code? It is also possible to convert code to the design (when you update the code and need an updated UML diagram or whatnot)?

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• Partner Webcast – Weblogic for Developers - 12 July 2012

  - by Thanos

  Oracle Weblogic Server is the industry’s leading application server for deploying Java EE applications with support for new features for lowering cost of operations, improving performance and enhancing scalability. But it’s also a great choice for the Java developers because of the differentiating capabilities that facilitate integration with other tools and frameworks, promote reusability and rapid redeployment of your applications. During the webinar we’re going to explore these differentiation features in more detail. Agenda: Java EE standards support in different Weblogic Server versions Weblogic  Classloading How Weblogic load the classes Filtering classloader Shared libraries Classloader Analisys Tool Spring support in Weblogic Weblogic integration with Apache Maven Advanced deployment features Fast Swap Side by Side deployment Q&A session Delivery Format This FREE online LIVE eSeminar will be delivered over the Web. Registrations received less than 24hours prior to start time may not receive confirmation to attend. Duration: 1 hour Register Now! For any questions please contact us at [email protected] Visit regularly our ISV Migration Center blog Or Follow us @oracleimc to learn more on Oracle Technologies as well as upcoming partner webcasts and events.

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• "Optimal" game loop for 2D side-scroller

  - by MrDatabase

  Is it possible to describe an "optimal" (in terms of performance) layout for a 2D side-scroller's game loop? In this context the "game loop" takes user input, updates the states of game objects and draws the game objects. For example having a GameObject base class with a deep inheritance hierarchy could be good for maintenance... you can do something like the following: foreach(GameObject g in gameObjects) g.update(); However I think this approach can create performance issues. On the other hand all game objects' data and functions could be global. Which would be a maintenance headache but might be closer to an optimally performing game loop. Any thoughts? I'm interested in practical applications of near optimal game loop structure... even if I get a maintenance headache in exchange for great performance.

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• Why Move My Oracle Database to New SPARC Hardware?

  - by rickramsey

  If didn't manage to catch all the news during the proverbial Firehose Down the Throat that is Oracle OpenWorld, you'll enjoy these short recaps from Brad Carlile. He makes things clear in just a couple of minutes. photograph copyright by Edge of Day Photography, with permission Video: Latest Improvements to Oracle SPARC Processors with Brad Carlile T5, M5, and M6. Three wicked fast processors that Oracle announced over the last year. Brad Carlile explains how much faster they are, and why they are better than previous versions. Video: Why Move Your Oracle Database to SPARC Servers with Brad Carlile If I'm happy with how my Oracle Database 11g is performing, why should I deploy it on the new Oracle SPARC hardware? For the same reasons that you would want to buy a sports car that goes twice as fast AND gets better gas mileage, Brad Carlile explains. Well, if there are such dramatic performance improvements and cost savings, then why should I move up to Oracle Database 12c? -Rick Follow me on: Blog | Facebook | Twitter | Personal Twitter | YouTube | The Great Peruvian Novel

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• Fastest way to document software architecture and design

  - by Karsten

  We are a small team of 5 developers and I'm looking for some great advices about how to document the software architecture and design. I'm going for the sweet spot, where the time invested pays off. I don't want to use more time documenting than necessary. I'll quickly give you my thoughts. What are the diagrams I should made? I'm thinking an overall diagram showing the various applications and services. And then some sequence diagrams showing the most important or complicated processes. About the code it self, I really don't see much value in describing or making diagrams for the code outside the .cs files them self. About text documents, I'm a bit uncertain about when to put down on paper. Most developers don't like to either write or read long documents.

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• Beginners' Guide to Development

  - by Bombillazo

  Hello. So I have some experience programming in Java, and at the moment I am learning how to use Python. I have read on the process of game design and such. I also have media covered, got experience with graphics and audio. My question is geared more towards the actual tools to use for making games, developing. I am willing to commit to a long term development cycle, as I will be doing this as a hobby. I've heard of Flash, Gamemaker, etc. I don't intend to create my own Game Engine, so I was looking for a platform that is extensible and easy to program with an OOP mind frame. As a plus it would be great of said game could be played directly from a website. TIA!

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• ACE a Session at Oracle OpenWorld

  - by Oracle OpenWorld Blog Team

  By Bob Rhubart Oracle ACE Sessions at Oracle OpenWorldAs you're finalizing your Oracle OpenWorld travel plans and taking advantage of Schedule Builder to plan your week in San Francisco, make sure you add some Oracle ACE sessions to your schedule."What's an Oracle ACE?" you ask. Members of the Oracle ACE Program are the most active members of the Oracle community, frequently sharing their substantial insights and real-world expertise with Oracle technologies through articles, blogs, social networks, and as presenters at Oracle OpenWorld and other events.With so many great sessions at this year's event, building your schedule can involve making a lot of tough choices. But you'll find that the sessions led by Oracle ACEs will be the icing on the cake of your Oracle OpenWorld content experience.To see a full list of Oracle ACE sessions at Oracle OpenWorld and other Oracle conferences that same week, check out this blog post that lists them all.

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• Does Bad Weather Affect Cloud Computing? [Humor]

  - by Jason Fitzpatrick

  Indian government official Vishwa Bandhu Gupta deserves a Master Class Troll Lifetime Achievement Award for his performance in this five minute video and complete bamboozling of a poor reporter. Before we ridicule the reporter for buying Gupta’s spiel, keep in mind that 51% of Americans think cloud computing actually has something to do with clouds. Cloud Computing Is Great, But What If It Rains? [via Digital Inspiration] 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 What Are the Windows A: and B: Drives Used For?

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• Testing with Profiler Custom Events and Database Snapshots

  We've all had them. One of those stored procedures that is huge and contains complex business logic which may or may not be executed. These procedures make it an absolute nightmare when it comes to debugging problems because they're so complex and have so many logic offshoots that it's very easy to get lost when you're trying to determine the path that the procedure code took when it ran. Fortunately Profiler lets you define custom events that you can raise in your code and capture in a trace so you get a better window into the sub events occurring in your code. I found it very useful to use custom events and a database snapshot to debug some code recently and we'll explore both in this article. I find raising these events and running Profiler to be very useful for testing my stored procedures on my own as well as when my code is going through official testing and user acceptance. It's a simple approach and a great way to catch any performance problems or logic errors.

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• having trouble getting audio drivers

  - by barry

  i'm trying to install the audio driver for my laptop and having problems. everything works great except for no audio. i locate the file, download it, try to open it, and this is what i get: Archive: /home/barry/Downloads/Audio_Conexant_v.6.14.10.575_XPx86/HXFSetup.exe [/home/barry/Downloads/Audio_Conexant_v.6.14.10.575_XPx86/HXFSetup.exe] End-of-central-directory signature not found. Either this file is not a zipfile, or it constitutes one disk of a multi-part archive. In the latter case the central directory and zipfile comment will be found on the last disk(s) of this archive. zipinfo: cannot find zipfile directory in one of /home/barry/Downloads/Audio_Conexant_v.6.14.10.575_XPx86/HXFSetup.exe or /home/barry/Downloads/Audio_Conexant_v.6.14.10.575_XPx86/HXFSetup.exe.zip, and cannot find /home/barry/Downloads/Audio_Conexant_v.6.14.10.575_XPx86/HXFSetup.exe.ZIP, period. can anyone help me out here? thanks

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• Physics engine that can handle multiple attractors?

  - by brice

  I'm putting together a game that will be played mostly with three dimensional gravity. By that I mean multiple planets/stars/moons behaving realistically, and path plotting and path prediction in the gravity field. I have looked at a variety of physics engines, such as Bullet, tokamak or Newton, but none of them seem to be suitable, as I'd essentially have to re-write the gravity engine in their framework. Do you know of a physics engine that is capable of dealing with multiple bodies all attracted to one another? I don't need scenegraph management, or rendering, just core physics. (collision detection would be a bonus, as would rigid body dynamics). My background is in physics, so I would be able to write an engine that uses Verlet integration or RK4 (or even Euler integration, if I had to) but I'd much rather adapt an off the shelf solution. [edit]: There are some great resources for physics simulation of n-body problems online, and on stackoverflow

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• Windows Phone 7 DatePicker gotcha

  - by David Turner

  The Silverlight Toolkit for Windows Phone adds some great extra controls for Windows Phone 7, one gotcha that I ran into was that the DatePicker Application Bar icons don’t show up unless you include them in your project. The problem is that your DatePicker ends up looking like this: Tim Heuer mentions this in his blog post about the Silverlight Toolkit for WP7, and as he says, it is documented in the source code: So the problem is that the icons can’t be referenced from the Silverlight Toolkit Assembly, and the solution is that you have to add them to you project in the ‘well known’ / pre-defined location of a top level folder in your project called Toolkit.Content, and you must make sure to mark the icons with a Build Action of  ‘Content’ otherwise it wont work: The result is that your DatePicker will now look like this:

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• Dark Visual Experience in Visual Studio 2012

  - by Jalpesh P. Vadgama

  I have written whole series related to Visual Studio 2012 features and this post will also be part of same series.You can get all my post related to visual studio from the following link. Visual Studio 2012 feature series Before some days I was searching something and found a great way to change the visual experience of visual studio 2012. I found that there are two type of themes available in visual studio 2012 light and dark under Tools->Option-> General environment value. This is one of newest feature I have found in visual studio 2012. Read More >>

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