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• Run Java application as a different user [on hold]

  - by Harihar Das

  I need to run a few perl scripts from a Java GUI application. I am using Runtime API to do that. However, few of the perl scripts need to run under a specific user account to have special credentials to access specialized resources (e.g. Database, Files). I have heard of alleviating user access using UAC. But till now I am not able to find the solution. Please help me on how to run a process under a different user login. Is there anything similar to c# impersonization in Java?

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• Dell Vostro 1510 trackpad

  - by user18055

  A week ago I moved totally from Windows 7 to Ubuntu. I've been really happy with the transition bar one annoying glitch. My trackpad sometimes works, sometimes doesn't. All other hardware including peripherals work flawlessly, including a Logitech ball mouse, Wacom Bamboo pen and touch and wireless Logitech keyboard and mouse combo. I can't see any pattern to when and why the trackpad works. Occasionally on rebooting, it will work, but then I can reboot 10x in a row and it won't work, then I leave it a day, then reboot and it works flawlessly. Any ideas on a solution or appropriate method for me to deb it? My knowledge of Ubuntu/Linux is sketchy at best so I could do with a little help :)

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• Kernel panic when booting from USB

  - by maaartinus

  I downloaded ubuntu-11.04-desktop-amd64.iso and used Universal-USB-Installer-1.8.6.3.exe to format my USB stick und put the ISO on it. When I tried to install from it, I've got a kernel panic just like here, except for the version number (mine was 2.6.38-8-generic #42-ubuntu). My ISO image seems to work, as I installed it into a VMWare player without problems. Booting Linux from USB works surely too, as I did it some time ago with an older Ubuntu version. I can imagine things to try out, e.g., write the image again, try another version, pray, look for patches, etc. However, I'm looking for a time-efficient solution, something what most probably works. An advice of the sort "wait two weeks until it's surely fixed, then download again" is acceptable, I'm determined to switch to Linux, but it can wait a bit.

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• MySQL in ASP.NET: Mono using VB.NET

  In a previous tutorial titled ASP.NET Web Development and Hosting published October 25th you learned how to develop ASP.NET websites using Mono Project and deploy them in your existing Linux-Apache hosting account. The example ASP.NET mono website http www.dotnetdevelopment.net did not use a database at the time the tutorial was written. In this part you will learn how to connect and use a MySQL database with your ASP.NET mono project website.... Microsoft Exchange - IT peace of mind Big time solution. Small-stakes price. Get the White Paper now.

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• Greatly Enhanced LINQ Capabilities in Devart ADO.NET Data Providers

  Devart has recently announced the release of dotConnect products for Oracle, MySQL, PostgreSQL, and SQLite - ADO.NET providers that offer Entity Framework support, LINQ to SQL support, and contain an ORM model designer for developing LINQ to SQL and EF models based on different database engines. New dotConnect ADO.NET Providers offer advanced LinqConnect ORM solution (formerly known as Devart LINQ support) closely compatible with Microsoft LINQ to SQL and having its own advanced features. Devart...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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• Avoiding orbiting in pursuit steering behavior

  - by bobobobo

  I have a missile that does pursuit behavior to track (and try and impact) its (stationary) target. It works fine as long as you are not strafing when you launch the missile. If you are strafing, the missile tends to orbit its target. I fixed this by accelerating tangentially to the target first, killing the tangential component of the velocity first, then beelining for the target. So I accelerate in -vT until vT is nearly 0. Then accelerate in the direction of vN. While that works, I'm looking for a more elegant solution where the missile is able to impact the target without explicitly killing the tangential component first.

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• 6 Steam Troubleshooting Tips

  - by Chris Hoffman

  Steam is generally pretty stable, but every now and then you’ll run into a problem. This guide gives solutions to common problems you’ll encounter in Steam, from games crashing or not working properly to Steam failing to launch. If none of these solutions helps, try Googling the problem – you may have run into a game-specific problem with a game-specific solution or just a more obscure Steam bug. 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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• Wordpress : Automatically transfer media files to Amazon S3

  - by Ron Ranieri

  I've been using VPS to host 7 Wordpress websites, most of them require big storage but very little RAM and traffic. So I'm thinking of moving the static files(uploads folder) content to Amazon S3 and I'm looking for the most viable solution to this. I want every website to have their own bucket and newly uploaded media files automatically uploaded to Amazon S3 without using plugin. I'm ok with cron job, for example the files were uploaded first to my server, then transferred to S3 and deleted from my server every 24 hour. Or is there any way for me to change the default upload directory to my S3 bucket without sacrificing any Wordpress functionality(resize/title etc)? What do you think the most efficient way to do this? Currently I'm looking at this plus cron job but I would like to know better option if it exist.

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• Launcher disappears when Focuswriter is minimized

  - by Andreas

  This bug has to do with the integration of the full-screen writing app Focuswriter within Unity. It appeared before I upgraded from Ubuntu 12.04 to 12.10 - probably caused by a an automatically upgraded change that persist in 12.10: When I minimize Focuswriter after it has been in full-screen mode the launcher is invisible - instead of seeing it I just see a rectangle the color of my desktop background where it should have been. The launcher becomes visible if I click the area once but then I'm likely to hit an icon and unwillingly open a program. I've reported the bug to the developer of the program here: https://github.com/gottcode/focuswriter/issues/101 He has labeled the bug "upstream" saying that the bug is can only be fixed in Unity. My questions are: 1) does anyone (perhaps experiencing problems with other full-screen programs) have a solution or workaround so the launcher won't disappear? 2) where can I file a bug report for this problem?

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• Unleash the Power of JavaFX

  - by Angela Caicedo

  It seems that it was just yesterday that we were getting ready for JavaOne 2012.  Now it's over, but it's definitely a great time to go back and watch the sessions you missed, and learn some of the latest news about Java.   For this JavaOne, I presented two sessions and one HOL, all of them related to JavaFX: JavaFX Extreme GUI Makeover Building JavaFX Interfaces with the Real World Unleash the power of JavaFX If you couldn't join us for these sessions, just follow the links and you can watch the videos on demand. For the HOL I've created a repository at GitHub, as many of the attendees wanted to keep the material.   In this repository you can find the lab document, the NetBeans projects for each exercise and it's appropriate solution.  Hope you enjoy! I created and presented a HOL called:  Unleash the power of JavaFX.  In this blog entry I would like to provide you 

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• "What happens?" server performance monitor

  - by AlexAtNet

  Hello! After reviewing some thread about server monitoring software I end up with a simple question: Which of the server monitoring tools should I use for automatic detection of "abnormal" situations with recommendations on how to fix them? I look for software that checks the system performance after installation and calculate some average load values (memory, CPU, etc). And when something happens (CPU load is increased to 20%) then it tries to detect a reason for this. If it is apache, it should check for access logs. If mysql, it should check mysql logs and tell me what happens. It this is because some user decodes a lot of images, I'd like to know which command is executed, when and user name. The same for disk usage, memory, number of processes, threads and so on. Ideally, this software should periodically checks the system and report problems: errors in PHP error log, outdated packages, security vulnerabilities. In other word I'm looking a software that will keep my simple Debian/Apache/PHP/MySQL server without forcing me to monitor the charts every day. I hope that such program exists. Thanks, Alex

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• Starting new project with TDD

  - by Carol

  I'm studying TDD and I read that it also helps you to define the design of the app, correct? So I decided to start creating a new project to help me understand it better. I want to create a simple user registration system that will ask for its name, email address, country (will pick one from a list) and phone number. So the question is... I created a new solution in VS 2010, added a new Test project and I just don't know what tests to write! Since it will help me define the design, what tests could I write here? Thanks for any help!

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• Sharing ideas without risk of leaking

  - by eversor

  As freelancers, we meet somewhere and chat about a new idea for a project, brainstorm etc. Up to this point, we have taken notes of the ideas, but we would like to be able to share more efficiently the ideas with each other. However, I fear that if I use some online product (such as Google Docs) these ideas could be seen by people outside the team (employees of the company of the online product, other users...). I am not sure if I am being a little Paranoid parrot... One solution that we have considered is to install a Subversion with just one ideas.txt. But that would require a server in one of our houses, which is a little unconfortable. So how do you share your ideas for a new project with your team without risking the ideas to be stolen?

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• Ubuntu 12.04 Syntek in-built webcam not detected

  - by Farotz

  I have installed Ubuntu 12.04 and my inbuilt camera is not detected. I have tried with Cheese and GUVCView, but neither detects the webcam. I have also tried the solution proposed above using the Terminal, with no results. This is my lsusb output: farotz@farotz-EasyNote-BU45:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 003: ID 174f:a821 Syntek Web Cam - Packard Bell BU45, PB Easynote MX66-208W Bus 002 Device 002: ID 1d57:0008 Bus 003 Device 002: ID 08ff:1600 AuthenTec, Inc. AES1600 Bus 001 Device 007: ID 12d1:142d Huawei Technologies Co., Ltd. farotz@farotz-EasyNote-BU45:~$ Any suggestions? Thank you.

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• How to apply a filter to the screen of a running program?

  - by Shahbaz

  The idea is to take old games without modifying them, but have the graphics card apply a series of filters to their output before sending them to the monitor. A very crude example would be to take a game that has a resolution of 640x480 and do: Increase the resolution to 1280x960 Apply a blur (low pass filter) Apply a sharpen (1 + high pass filter) These steps may not necessarily be the best to improve the visuals of an old game, but there are a lot of techniques that are well-known in image processing for this purpose. The question is, do the (NVidia) graphics cards give the ability to load a program that modifies the screen before sending it to the monitor? If so, how are they called and what terminology should I use to search? I would be comfortable with doing the programming myself if this ability is part of a library. Also, would the solution be different between Windows and Linux? If so, either is fine, since most of the games are probably runnable by wine.

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• Alt/Shift key not released after switching keyboard layout

  - by szx

  Sometimes when I switch layout using either Alt+Shift or Ctrl+Shift the Alt key is not recognized as being released thus if I press e.g. F a File menu opens up. Last time that happend I lost all data I filled into a text form on a webpage because I pressed the Home key while typing and Firefox suddenly went to my home page! Moreoever, it still remains unreleased after hundreds of keypresses like if I'm holding it! Same goes for the Shift key. I would rather file a bug at Launchpad if I could but I have no clue what fucking package name should I type in the ubuntu-bug command! Have anyone else had this issue? Can you suggest a solution or maybe another place to report this bug?

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• InputLayout handling

  - by Kikaimaru

  Where are you supposed to store InputLayout? Suppose i have some basic structure like. class Mesh { List<MeshPart> MeshParts } class MeshPart { Effect Effect; VertexBufferBinding VertexBuffer; ... } Where should I store input layout? It's a connection between vertex buffer and specific pass, i can live with just 1 pass but I still have diffferent techniques so i need at least an array with some connection to effecttechniques, but I would appriciate something not crazy like dictionary. I could also create wrapper for Effect and EffectTechnique, but there must be some normal solution.

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• Migrating Spring to Java EE 6 Article Series at OTN - Part 3

  - by arungupta

  The spring season is characterized by migration of birds, whales, butterflies, frogs, and other animals for different reasons. If you use Spring framework and are interested in migrating to a standards-based Java EE platform, for whatever reason, then we have a solution for you. David Heffelfinger's, a renowned author and an ardent Java EE fan, has published third part of Spring to Java EE migration series at OTN. The article series takes a typical Spring application and shows how to migrate it to Java EE 6 using NetBeans. This new part builds upon part 1 and part 2 and also compares the generated WAR files and LoC in XML configuration in the two environments. There is an interesting discussion on Why Java EE 6 over Spring ? as well.

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• Intercepting the Unity logout

  - by qbi

  I want to copy some data from another machine to a local computer on a regular basis. At the moment I'm researching different solutions and try to find the one which fits best. Basically I want to open a network connection (or use an existing one), make a VPN connection and start a rsync process. This should be done on every logout of my desktop session or on shutdown. One possible solution might be to somehow intercept the Unity shutdown and execute a script. So is there a possibility to execute a script on GNOME/Unity shutdown? I'm aware that you can do it on system shutdown. How can I do this?

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• Ubuntu 12.04LTS loads straight to terminal!! startx doesn't work!

  - by user293256

  I have been using ubuntu 12.04LTS for last few months, and now suddenly something has happened to it. As a result, terminal opens on every start up when I login . Although, if i login as a guest, it works fine. I have already used startx command, and tried reinstalling the desktop as well but it doesn't work! If I use ctrl+alt+f9, terminal screen vanishes and a black screen appears, and then nothing happens after that. ctrl+alt+f1 takes me to the command prompt. I know similar questions have been asked here, but i could not find a solution for my laptop. Please help!!

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• Compiz window decorator randomly disappears

  - by adjfac

  I know people have posted this problem before such as http://askubuntu.com/users/authenticate/?s=9b515fe8-5da2-4bb9-ba01-dcea538b9b9c&dnoa.userSuppliedIdentifier=https%3A%2F%2Fwww.google.com%2Faccounts%2Fo8%2Fid&openid.mode=cancel&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0 but i am looking for a more permanent solution right now. It happens to me at least once a day and when that happens, I usually go to compiz, uncheck and check window decorator and it will bring it back. But it's sort annoying and just wonder if there is a permanent fix out yet? I am using gnome (not unity), on a bran-new thinkpad t520.

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• How to make LBP-1120 Canon printer work?

  - by cipricus

  Initially this question was limited to 11.10. Now I am in (Lubuntu) 12.10. (On the changes in the question see this meta question). Considering 11.10 I have tried different (or not so different) approaches - that also other users commented here. My main references were: the ubuntu official documentation website on the LBP Canon driver package, this Unixmen solution which partly refers to Radu Cotescu script that aims at providing a near-automated install, and an updated by Unixmen version of that very script (download here). None worked for me.

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• Writing a dynamic achievement system without hardcoding rules into the application

  - by imaginative

  I really enjoyed the solution provided here for groundwork on writing an achievement framework. The problem I have is I have game designers that would like to be able to insert achievements into a CMS at runtime. In a way, it sounds insane and complex to do this, but is it really? I think the concept of having to do a hard push of the application for every new achievement is cumbersome. I would love to be able to give our designers the capability to put together new achievements by entering them into a database. It shouldn't matter what tool I'm using, but for those interested, my backend is being written in JRuby (Ruby on top of the JVM). What are some possible ways of going about abstracting the logic in the aforementioned link even further so that rules can be interpreted at runtime?

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• eSeminar ISV Partner Update: High Quality Reporting for Your Applications

  - by Mike.Hallett(at)Oracle-BI&EPM

  Play eSeminar Duration: 18 Minutes         Description: This webinar presents to ISV Partners Oracle’s latest release of BI Publisher, and describes how this tool can make their applications more competitive and appealing to their customers by providing High Quality Reporting and Business Intelligence embedded into their solution. • BI Publisher can Provide All Reports… at Lower Cost • Easier, with Better Developer Productivity • Better Managed : Better Performance, Less Administration • Highest Quality : Pixel Perfect and Interactive Reporting. Play eSeminar (Only accessible to Oracle Partners).

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• Wireless Very slow with 13.10 and BCM4313

  - by RyanCheu

  I have a laptop with the BCM4313, and it was working perfectly in Ubuntu 13.04, but I recently upgraded to 13.10 and now my wireless performance is horrible. Initially it didn't work at all, but I removed the wl driver and use the brcmsmac driver instead. Now when I boot up it works at the start, but gets progressively slower. My Android device is reporting 10Mbps down/20Mbps up, but my laptop only gets 1up/down. Does anyone know a solution? I really need my wireless to work, is my best option to just reinstall on 13.04? Thanks!

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