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• How can robots beat CAPTCHAs?

  - by totymedli

  I have a website e-mail form. I use a custom CAPTCHA to prevent spam from robots. Despite this, I still get spam. Why? How do robots beat the CAPTCHA? Do they use some kind of advanced OCR or just get the solution from where it is stored? How can I prevent this? Should I change to another type of CAPTCHA? I am sure the e-mails are coming from the form, because it is sent from my email-sender that serves the form messages. Also the letter style is the same. For the record, I am using PHP + MySQL, but I'm not searching for a solution to this problem. I was interested in the general situation how the robots beat these technologies. I just told this situation as an example, so you can understand better what I'm asking about.

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• Where are the values of java.library.path being set?

  - by lmestre

  This one could be a WebLogic Server question, but this post is general for any java environment.We were getting  at the very beginning  java library path something like this: /home/lmestre/jdk1.6/jre/lib/amd64/server:/home/lmestre/jdk1.6/jre/lib/amd64:/home/lmestre/jdk1.6/jre/../lib/amd64So, the question was: Where WebLogic Server is setting java.library.path?I never found the answer, so why don't we try to try to answerWhere the JVM is setting java.library.path?public class LibraryPathPrinter {   public static void main(String[] args) {       String javaLibraryPath= System.getProperty("java.library.path");       System.out.println("java.library.path "+javaLibraryPath );   }}after a simplejavac LibraryPathPrinter.javaand then an easyjava LibraryPathPrintervoila!The program printed something like thisjava.library.path  /home/lmestre/jdk1.6/jre/lib/amd64/server:/home/lmestre/jdk1.6/jre/lib/amd64:/home/lmestre/jdk1.6/jre/../lib/amd64So the JVM was the culprit.Enjoy!

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• dbus error on 14.04 after system is left idle for a few hours

  - by user281513

  I did a clean install of 14.04 on a crucial M4 64gb ssd. The system boots in less than 30 seconds now! but.. when I leave it idle for a few hours and log back in nothing works .. if I do a simple command like df ..I get a dbus error message. I also have a toshiba sata disk mounted for general storage since the ssd is so small .. nothing appears to be damaged when I reboot but it is extremely annoying .. any ideas on how to correct this will be appreciated.

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• Custom vs. browser-native scrollbars

  - by vemv

  Including customizable, JavaScript-based scrollbars (and scrolling functionality in general, i.e. bind the control to the mouse scroll wheel) in your webapp can be a great temptation. However all solutions I could find were developed by individuals (which can equal lack of formal or future support). In addition I fail to remember any mainstream site using them. In my particular case, no-JavaScript or IE6/odd-browser environments are not intended to be supported. Should custom scrollbars be avoided nowadays? If not, what's the best option one can choose?

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• Testez vos connaissances : premier quizz (X)HTML de la série, de niveau facile

  Nouveauté ! Prêt à tester vos connaissances ? L'équipe de la rédaction Web a le plaisir de vous annoncer son premier quizz ! Au fil des semaines à venir, diverses séries de quizz vous seront proposés afin que vous puissiez vous testez et connaître un peu mieux votre niveau en HTML et CSS. Ces questionnaires à choix multiples sont classés par niveau en commençant par du facile et se terminant par du difficile. Des "numéros hors série" vous seront aussi proposé dont le niveau sera plus ardu encore. Les trois séries de quizz sont les suivantes :facile : questions d'ordre général faisant appel aux ...

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• Using a GPL licensed library in a commercial app

  - by user577616

  I develop an android application and in my app I use a libary (jar) that I download from the internet. This jar is open-source under the "GNU General Public License v2". I tried to read the text of the license but had difficulty understanding it. My question is: can I use this libary without changing nothing in the jar in a commercial application? I will be making profit from selling my app which uses this GPL-ed .jar file. If possible, I would like to avoid converting my application to open-source.

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• Natal ne servira pas qu'à jouer, le système de reconnaissance de mouvements de Microsoft aura des ap

  Mise à jour du 26/04/10 Le projet Natal ne servira pas qu'à jouer Le système de reconnaissance de mouvements de Microsoft pourrait avoir des applications plus "intrusives", voire publicitaires Le projet Natal ne servira pas qu'à jouer. C'est ce que vient de laisser entendre Marc Whitten, general manager de la Xbox 360. La technologie de reconnaissance de mouvements développée par Microsoft pourraient également avoir des applications plus... intrusives. « Imaginez un événement sportif. Natal pourrait savoir pour quelle équipe vous êtes, parce qu'il voit votre maillot ou qu'il repèrera quand [...] vous...

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• Free Models and Related Animations for AI project in Unity [on hold]

  - by zhed

  Does anybody know a good website where to find free models and animations for AI projects? I'm not talking about anything good looking, like stuff you would look for when building a proper game, but, for example, a bunch of male/female models that are able to walk around and that would substitute my ugly "capsules", just to give a better -yet, still rough - idea of what's going on in the scene. On the Unity Asset Store there are a bunch of nice male/female models, but i haven't found any free general-purpose(i.e. normal walking) animation attachable to them. Any tip would we appreciated, thanks :)

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• An Annotated Line of Business Application

  The Silverlight HyperVideo Player  has met with strong support and interest. This mini-tutorial is the first in a series that will walk through the design and delivery of this project. This series will pretend that the design existed before we began coding, and will not take you through its evolution over the months between December 2009 and March 2010. In short, this series is a drop-line exercise highlighting how the program works with a focus on teasing out general principles of creating...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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• Without using a pre-built physics engine, how can I implement 3-D collision detection from scratch?

  - by Andy Harglesis

  I want to tackle some basic 3-D collision detection and was wondering how engines handle this and give you a pretty interface and make it so easy ... I want to do it all myself, however. 2-D collision detection is extremely simple and can be done multiple ways that even beginner programmers could think up: 1.When the pixels touch; 2.when a rectangle range is exceeded; 3.when a pixel object is detected near another one in a pixel-based rendering engine. But 3-D is different with one dimension, but complex in many more so ... what are the general, basic understanding/examples on how 3-D collision detection can be implemented? Think two shaded, OpenGL cubes that are moved next to each other with a simple OpenGL rendering context and keyboard events.

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• Pillar Axiom OpenWorld Highlights

  - by uwes

  During the Storage General Session at Oracle OpenWorld Conference 2012 in San Francisco, the following Axiom-related announcements were made: Oracle Platinum Services for Axiom 600: Extending Oracle's Platinum Services to Axiom 600 as a standalone product –  the same level of service and support you get with Exadata – 24/7 fault monitoring, dedicated response and escalation management to meet enterprise-grade SLA’s, patch planning and management. Oracle Enterprise Manager Axiom Plug-in: Allowing DBA's to manage, maintain, monitor and provision the Axiom 600 storage system from Oracle EM. Oracle Virtual Machine Axiom Plug-in: Allowing Oracle VM and System Administrators to manage, maintain, monitor and provision the Axiom 600 storage system from Oracle VM using Storage Connect. Oracle Axiom Data Protection Manager 3.1: Leveraging Axiom's Copy Services, System Administrators can automatically create Application Consistent Clones of critical Windows and Oracle DataBase environments for quick recovery. For More Information Go To: Oracle.com Pillar Axiom Page Oracle Technology Network SAN Page

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• Advice on approaching a significant rearrangement/refactoring?

  - by Prog

  I'm working on an application (hobby project, solo programmer, small-medium size), and I have recently redesigned a significant part of it. The program already works in it's current state, but I decided to reimplement things to improve the OO design. I'm about to implement this new design by refactoring a big part of the application. Thing is I'm not sure where to start. Obviously, by the nature of a rearrangement, the moment you change one part of the program several other parts (at least temporarily) break. So it's a little 'scary' to rearrange something in a piece of software that already works. I'm asking for advice or some general guidelines: how should I approach a significant refactoring? When you approach rearranging large parts of your application, where do you start? Note that I'm interested only in re-arranging the high-level structure of the app. I have no intention of rewriting local algorithms.

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• Progressing past CRUD applications in PHP?

  - by Anonymous -

  I've been programming in PHP for about a year and am at the following stage: Have a good 'feel' for the language Can create CRUD applications competently Can utilize an MVC structure to allow for future expansion of code Using the points listed above, I've created a number of my own applications for practise - including but not limited to; a forum, social network etc. My question may be a little vague but should hopefully be answerable. I feel as though there isn't anything else I would need to know about PHP to allow me to create websites, though I'm sure I'm wrong. What advanced/complex PHP topics could I look at that have a real-world use and will allow me to enhance both my skill as a programmer and applications in general? Recently I've looked a lot more at javascript/jQuery allowing me to give my applications a richer user interface which has been a great learning experience and proving very useful.

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• category title and affect on SEO and ranking [closed]

  - by Mark

  We are working on a jobs and skills website (similiar to Skill Pages) and are deciding on the names of categories. Rather than having loads of categories and sub-categories like, for example, Builder, Electrician, Carpenter etc, we would like to have more general and easier on the eye category names. So for example we have House, Computer, Education, Art etc. So a builder would be in category House and a few others. Will this style negatively effect our SEO and ranking? And if so, should we abandon and go back to traditional categories and sub-categories?

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• Building a website, wondering how to add news to it? Details inside. [closed]

  - by Robolisk

  On the home page of my website, I'd like to add a "news" kind section, where I can add blogs and such. Now from my understanding if this was all done in hard coding I'd have to go into the code just to add stuff to it. I've looked at things like drupal and I get how those work, but I how would I be able to add this to my site? The same kind of concept? Also, one more thing, what does inc operating php into a website offer? like better looks or general preformence? I don't understand this. Excuse my grammar/spelling. (: And thank you for taking the time to read this.

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• Microsoft Offers Cheap Windows 8 Upgrade

  Though the software giant hasn't answered all of the questions, Computerworld collected many of them in one place and included the answers. You can also visit Microsoft's blog post for the details. Starting at general availability, if your PC is running Windows XP, Windows Vista, or Windows 7 you will qualify to download an upgrade to Windows 8 Pro for just $39.99 in 131 markets. And if you want, you can add Windows Media Center for free through the 'add features' option within Windows 8 Pro after your upgrade, the Microsoft blog post helpfully states. If you choose to upgrade, the Windows 8...

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• How does Ubuntu achieve RGB subpixel rendering for Mono applications?

  - by user100751

  Distributions in the *Ubuntu ecosystem support proper RGB subpixel rendering in Mono based applications (e.g. Banshee) by default, i.e. out of the box without any additional configuration requirements, whereas e.g. Fedora does not. I am aware of general patent infringement issues and the freetype-freeworld libs, but never managed to enable RGB subpixel rendering for Mono in Fedora - it keeps using greyscale. So, as the question title implies: how does *Ubuntu achieve RGB subpixel rendering in Mono applications?

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• Les pirates utilisent de plus en plus les sites légitimes pour leurs exploits, révèle un rapport de Kaspersky Lab

  Les pirates utilisent de plus en plus les sites légitimes pour leurs exploits, révèle un rapport de Kaspersky Lab Kaspersky Lab vient de publier ses dernières observations sur l'évolution des menaces de sécurité informatique. Il y est mis en lumière une hausse des attaques en ligne en 2010, avec plus de 580 millions d'incidents détectés. Et une nouvelle tendance s'est faite remarquer : les risques ne planaient plus seulement au dessus des sites proposant des contenus illégaux, mais aussi du côté des pages légitimes (comme les sites de shopping ou de jeu en ligne), que les cyber-criminels prennent de plus en plus à parti. En général, ces derniers s'attaquent à des serveurs vulnérables, et injectent un code malveillant...

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• Are there any reliable solutions for annotations/reflection/code-metadata in C?

  - by dukeofgaming

  Not all languages support java-like annotations or C#-like attributes or code metadata in general, however that doesn't mean it is not possible to have in languages that don't have this. An example is PHP with Stubbles and the Doctrine annotation library. My question is, is there anything like this for C?, or are there any reliable ways of doing reflection with extended code metadata in C? Ideally, I'm looking for something that reads javadoc-like comments. Edit: The reason for me *needing* as opposed to just wanting, is that I need to generate C code and code-metadata from a database, as well as being able to edit that metadada and update the database. The volume of the work (~15,000 variables/structures/functions to generate from this database) justifies the solution.

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• How do I install drivers for graphics and sound?

  - by Sid

  I recently shifted to Ubuntu 12.04 from windows 7. I completely removed Windows and then installed Ubuntu. However, I can't find a way to download and install drivers for my video and audio hardware like I used to be able to do in Windows. Could someone please explain to me how software and drivers, in general, are installed on Ubuntu. Is installing through 'Ubuntu Software Center' the only way to install them? My laptop model is: Dell Inspiron 14 N4010 (i5/4gb/500gb). Kindly help. Thanks in advance.

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• Azure, a Beautiful Color, and So Much More...

  - by KKline

  Windows and SQL Azure Resources Cloud computing is more than just the latest buzz word in the IT trade papers. It is a remarkable paradigm shift with as much potential to "turn over the apple cart" of IT computing as client-server had for the world of mainframe and minicomputers. If you're not spending time to learn about cloud computing, in general, and SQL Azure, in particular, then you're missing the boat in a big way. (Ha! Two big metaphors in one afternoon. My high-school English teacher would...(read more)

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• Generic Content Player?

  - by Jantire

  The general idea on the web appears to be that video/audio are to be separated with plain text. By separated, I mean you have a place that plays video/audio and a place that you read text. This is because it is widely understood that they are vastly different. However, audio and video are just another way of communication, just like text. So why do we separate the two even if they are nearly the same thing? Correct me if I'm wrong but, most tutorials are either plain text how-to's (wiki-style) or visual/auditory instructional videos (YouTube). Why aren't the two combined? Or, if it's already been done can someone reply with the link? This might be bordering off-topic and if it is off-topic then please point me to the right place so it won't be. This might also appear to be an obvious question, however I'm not sure if this subject has really been deeply thought-out by more than a few individuals.

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• GPL exception that allows linking to free licenses only?

  - by fNek

  There is the GPL license and the linking exception which allows closed-source programs to use the program as a library. There is also the slightly more restrictive LGPL (more restrictive than GPL with exception since it requires that the user can change the library in the resulting project, etc.). And there is the Cygwin exception that allows linking to open source programs. I see clear advantages: Open-Source programs may use the library. People may use these programs for closed-source programs, but then they lose the permission to use the (GPL) library. However, there are two things I don't like about the Cygwin exception: - Its legal status is disputed - I keep hearing that it is basically worthless - It requires certification by the OSI, I would rather have certification by FSF Is there an exception to the GNU General Public License that meets my requirements?

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• best approach to learning for an undergrad operating systems course?

  - by rrazd

  what is the best approach to learning for an undergrad operating systems course in order to understand the concepts and get a good grade in the exam? I know that some courses can be mastered through diligently reading the textbook or attending lectures while for others the concepts can only be understood by doing hands on projects. Is there a general studying approach that should be adopted for this type of a course? I know this may be subjective but I am looking for personal experiences/study methods by those who have taken similar courses to see if there is one particular method that worked well for the majority.

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• HP Envy - HDMI / Mini-display-port not working

  - by Castanho

  I saw that many of HP envy users (and some other hardwares) are having problems while using Ubuntu (some other distributions too). PROBLEM My main issue is make my HDMI or Mini-display-port work on Linux (Ubuntu). I`m able to make it work smoothly on windows only :( TIP Some guy create a blog, that is very nice and I could found some helps over there. But is kind of abandoned. General Purpose The idea of this post is to put together all users and share though under this issue. Thanks in advance for any reply/comment. UPDATE1: Looking THIS comment I could start to see something at the end of the road! I will wait for some reply on this. If I have more news I`ll update this post!

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