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• How do I transition from WUBI to a native installation?

  - by Sammy Black

  I have Ubuntu 10.04 Lucid installed through wubi on my laptop (it came with Windows 7 preinstalled). This was my first foray into Linux, and I'm here to stay. I have no use for Windows, and yet I must manually choose not to boot into it! Should I shrink the Windows partition to something negligible and grow the Linux one using something like gparted or fdisk, and just be content that everything runs? In that case, I need to understand the filesystems. Which is which? Here's the output of $ df -h: Filesystem Size Used Avail Use% Mounted on /dev/loop0 17G 11G 4.5G 71% / none 1.8G 300K 1.8G 1% /dev none 1.8G 376K 1.8G 1% /dev/shm none 1.8G 316K 1.8G 1% /var/run none 1.8G 0 1.8G 0% /var/lock none 1.8G 0 1.8G 0% /lib/init/rw /dev/sda3 290G 50G 240G 18% /host I would prefer to start over with a clean install of 10.10 Maverick, but I fear what I may lose. Certainly, I will backup my home directory tree (gzip?), but what about various pieces of software that I've acquired from the repositories? Can I keep a record of them? By the way, I asked a similar question over on Ubuntu forums.

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• Learning to be a good developer: what parts can you skip over?

  - by Andrew M

  I have set myself the goal of becoming a decent developer by this time next year. By this I mean full experience of the development 'lifecycle,' a few good apps/sites/webapps under my belt, and most importantly being able to work at a steady pace without getting sidelined for hours by some should-know-this-already technique. I'm not starting from scratch. I've written a lot of html/css, SQL, javascript, python and VB.net, and studied other languages like C and Java. I know about things like OOP, design patterns, TDD, complexity, computational linguistics, pointers/references, functional programming, and other academic/theoretical matters. It's just I can't say I've really done these things yet. So I want to get up to speed, and I want to know what things I can leave till a later date. For instance, studying algorithms and the maths behind them is interesting and all, but so far I've hardly needed to write anything but the most basic nested loops. Investigating Assembly to have a clearer picture of low-level operations would be cool... but I imagine rarely infringes on daily work. On the other hand, looking at a functional programming language might help me write programs that are more comprehensible and less prone to hidden failures (at the moment I'm finding the biggest difficulty is when the complexity of the app exceeds my capacity to understand it - for instance passing data around was fine... until I had to start doing it with AJAX, which was a painful step up). I could spend time working through case studies of design patterns, but I'm not sure how many of them get used in 'real life.' I'm a programmer with basic abilities - what skills should I focus on developing? (also my Unix skills are very weak, and also knowledge of Windows configuration... not sure how much time I should spend on that)

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• How would I implement this application idea?

  - by Mike Wills

  I am a D&D gamer and a developer that has mostly worked with ASP.NET applications professionally. I have written some chat bots in Node.js and I have only played a little with PHP but wrote nothing serious. I have had inspiration to create a site that allows a person to keep track of characters (aka the character sheet). I am thinking of using this as a learning opportunity to learn noSQL and to write a full javascript front-end. I want this application to save the value as I change it. So if I edit the armor class, it is saved immediately instead of waiting until I hit the submit button. I think that will make it easier to use while gaming and not losing anything because I forgot to save the change. I have never done anything like this. How do you implement this style of application? Is there a tutorial or howto to get me on the right path? While I would really like to use ASP.NET but I don't have a Windows server to publish on (and I really can't afford to pay for a service). What language that runs on Linux would work well for this type of application? Note: I feel noSQL would work in this case because of the sheer number of tables required to create something like this in SQL.

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• Graphics card failure, anything I could try...

  - by ILMV

  My gaming PC has decided to die, it's not the first time but usually a quick ATX reset brings it back to life. Today it didn't. I disconnect all unessasary devices so I've only got the case button / LED cables, GPU, CPU, RAM and power connected, the computer still didn't turn on. I've not got a speaker on my motherboard so found a spare one I have for testing and when the machine starts up I get one long beep and two short beeps from my Award BIOS, which apparently means a video card error. I change it with the GPU from another machine and all works well. Q: So I have a faulty graphics card (an nVidia 8800GT OC), is there anything I can try to resurect it?

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• How can I retrieve the details of the file from an outbound operation in BPEL 11g

  - by [email protected]

  Several times, we come across requirements where we need to capture the details of the file that got written out as a part of a BPEL process invoking a File/Ftp Adapter. Consider a case where we're using FileNamingConvention as "PurchaseOrder_%SEQ%.txt" and we need to do some post processing based on the filename (please remember that we wouldn't know the filename until the adapter invocation completes) In order to achieve this, we need to manually tweak the WSDL so that the File/Ftp Adapter can return the metadata of the file that was written out. In general, the File/Ftp Write/Put WSDL operations are one way as shown below:         The File/Ftp Adapters are designed to return the metadata back if this WSDL is tweaked into a two-way WSDL. In addition, the <wsdl:output/> must import the fileread.xsd schema (see below). You will need to copy fileread.xsd from  here into the xsd folder of your composite.       Finally, we will need to tweak the  WSDL. (highlighted below)           Finally, the BPEL <invoke> would look as shown below. Please note that the file metadata would be returned as a part of the BPEL output variable:

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• Building computer: Casing for peripheral sockets is a pain!

  - by burnt1ce

  I have a casing the covers the spacing between the peripheral socket which is standard to have when you buy a motherboard. My problem with these covers is that they have spokes that pushes the motherboard away so the sockets don't even come out of the covers. This also misaligns the screws on my atx motherboard with the holes in my computer case. I usually break these spokes so that i can align my motherboard correctly. Why the heck do motherboard manufacture put spokes on these covers? am i using them wrong? UPDATE Here's an image that i found that shows the plastic casing. http://z.about.com/d/pcsupport/1/5/m/-/-/-/tour%5Fexternal.jpg You can even see the indentation that makes the spokes that pushes the motherboard inwards.

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• Bluetooth adapter turned from working fine to unrecognized

  - by easoncxz

  i had been using bluetooth fine, with devices working, but today when i turned on my computer again bluetooth strangely failed. there is a bluetooth icon on the top bar, showing "bluetooth on", but if i click on the "bluetooth settings" item, a system settings window shows up and shows me a bluetooth on-off switch which is disabled (i.e. fixed to off). more information about my case: i am a new linux used, coming from windows, and do not know supposedly-obvious commands. i am using a laptop. it initially doesn't have bluetooth. i bought a built-in type (instead of USB type) bluetooth module, and added it inside the laptop. hence, i do not have a specific FN+* key for bluetooth. in windows, i needed to install an additional driver that was intended for other machines in my laptop's seires which have built-in (i.e. factoryly built-in)j bluetooth modules. the Fn+* key seemed to only affect wifi under ubuntu. i have been successfully using magicmouse with my later-added built-in bluetooth module/adapter on both windows and ubuntu i have been trying to tweak the magicmouse scrolling speed with commands rmmod something, modprobe hid_magicmouse --scroll_speed=45 --scroll_acceleration=30 or something, then added a file `/etc/modprobe.d/magicmouse.conf". the mouse seemed to be working fine with these changes. now if i run commands like hcitool dev, the shell tells me that i do not have any "Devices" or "adapters". i seem to have bluez installed, because when i type "blue" then tab-autocomplete, a bunch of commands like bluez-test-device pops up. -- update -- some commands and their results: easoncxz@eason-Aspire-4741-ubuntu:/etc$ hcitool dev Devices: easoncxz@eason-Aspire-4741-ubuntu:/etc$ hcitool scan Device is not available: No such device easoncxz@eason-Aspire-4741-ubuntu:/etc$ rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no 1: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no 2: acer-bluetooth: Bluetooth Soft blocked: no Hard blocked: no easoncxz@eason-Aspire-4741-ubuntu:/etc$ rfkill list 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: no 1: acer-wireless: Wireless LAN Soft blocked: yes Hard blocked: no 2: acer-bluetooth: Bluetooth Soft blocked: yes Hard blocked: no

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• .NET Demon 1.0 Released

  - by theo.spears

  Today we're officially releasing version 1.0 of .NET Demon, the Visual Studio Extension Alex Davies and I have been working on for the last 6 months. There have been beta versions available for a while, but we have now released the first "official" version and made it available to purchase. If you haven't yet tried the tool, it's all about reducing the time between when you write a line of code and when you are able to try it out so you don't have to wait: Continuous compilation We use spare CPU cycles on your machine to compile your code in the background when you make changes, so assemblies are up to date whenever you want to run them. Some clever logic means we only recompile code which may have been affected by your changes. Continuous save .NET Demon can perform background saving, so you don't lose any work in case of crashes or power failures, and are less likely to forget to commit changed files. Continuous testing (Experimental) The testing tool in .NET Demon watches which code you change in your solution, and automatically reruns tests which are impacted, so you learn about any breaking changes as quickly as possible. It also gives you inline test coverage information inside Visual Studio. Continuous testing is still experimental - it will work fine in many cases, but we know it's not yet perfect. Releasing version 1.0 doesn't mean we're pausing development or pushing out improvements. We will still be regularly providing new versions with improved functionality and fixes for any bugs people come across. Visit the .NET Demon product page to download

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• Almost at our first year anniversary!

  - by Vizioz Limited

  It has been a hectic first year at Vizioz and things are still going from strength to strength. 11 months ago I started Vizioz with zero capital investment in the middle of a recession, which to some may seem a daunting prospect but to others including myself it was the challenge I needed to make me want to get up in the morning :) I wanted to prove that even in the curent financial climate it is still possible to start a new business.We are still experiencing the normal growing pains of a small business but this is something we just need to work our way through, it is amazing how much paperwork and administration there is running a small business, office admin, insurance, vat and for the last few months PAYE.For the last 9 months we have shared an office with another small business called Little Big Ideas. They are a design agency working across a broad spectrum of design from branding, print and digital. Last month we decided to move offices to a larger office and now have room for 8 of us, so now we need a couple more clients to help produce enough work to fill the space and grow to the next level.As well as moving office 2 months ago I blogged about my first employee Colin starting work for me, he has picked up Umbraco very well and has mastered the art of good CSS design, as the majority of our clients are large multi-nationals they still require support for IE6 which as all web developers know is the nightmare of all web browsers.This month has seen the next step in the growth of Vizioz as I have taken on another PhD graduate called Pricilla, welcome to the team!This month we plan to launch our own website to enable us to showcase some of the sites we have built over the past 11 months and to allow potential clients to see what we can offer. We might still be relatively small but we have some great case studies to show and with two PhD graduates on the team we have great talent capable of producing complex and innovative solutions for our clients. As soon as we have launched out new website I will blog again about what the future holds for Vizioz and what we can offer our prospective clients as well as e obvious Umbraco CMS solutions.

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• What kind of code would Kent Beck avoid unit testing?

  - by tieTYT

  I've been watching a few of the Is TDD Dead? talks on youtube, and one of the things that surprised me is Kent Beck seems to acknowledge that there are just some kinds of programs that aren't worth unit testing. For example, right here DHH says that Kent Beck is ... very happy to say "Well, TDD doesn't fit in this case, I'm just going to bail" It's frustrating to me that Kent Beck seems to acknowledge this, but nobody asks him to elaborate on it or give concrete examples. I'd like to know the situations where Kent Beck thinks TDD is a bad fit. Nobody can read his mind or speak for him, but I'm hoping he's been transparent enough through his books/tweets/whatever for someone to be able to answer. I'm not necessarily going to take what he says as gospel, but it would be useful to know that the times I've tried TDD and it just felt impossible/useless are situations that he would have bailed on it himself. Or, if it turned out he would have tested that code it'd suggest to me that I was approaching the process very wrong. I also think it would be enlightening to understand why he would bail on such projects. My opinion on why this is not a duplicate of "When is it appropriate to not unit test?" After skimming those answers I'm not satisfied. For example, look at UncleBob's answer. He doesn't even acknowledge that such a situation exists. I really think there's value in understanding Kent Beck's position, not just a general, "What's your opinion?" type of question. After all, he's the father of TDD.

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• Executing Components in an Entity Component System

  - by John

  Ok so I am just starting to grasp the whole ECS paradigm right now and I need clarification on a few things. For the record, I am trying to develop a game using C++ and OpenGL and I'm relatively new to game programming. First of all, lets say I have an Entity class which may have several components such as a MeshRenderer,Collider etc. From what I have read, I understand that each "system" carries out a specific task such as calculating physics and rendering and may use more that one component if needed. So for example, I would have a MeshRendererSystem act on all entities with a MeshRenderer component. Looking at Unity, I see that each Gameobject has, by default, got components such as a renderer, camera, collider and rigidbody etc. From what I understand, an entity should start out as an empty "container" and should be filled with components to create a certain type of game object. So what I dont understand is how the "system" works in an entity component system. http://docs.unity3d.com/ScriptReference/GameObject.html So I have a GameObject(The Entity) class like class GameObject { public: GameObject(std::string objectName); ~GameObject(void); Component AddComponent(std::string name); Component AddComponent(Component componentType); }; So if I had a GameObject to model a warship and I wanted to add a MeshRenderer component, I would do the following: warship->AddComponent(new MeshRenderer()); In the MeshRenderers constructor, should I call on the MeshRendererSystem and "subscribe" the warship object to this system? In that case, the MeshRendererSystem should probably be a Singleton("shudder"). From looking at unity's GameObject, if each object potentially has a renderer or any of the components in the default GameObject class, then Unity would iterate over all objects available. To me, this seems kind of unnecessary since some objects might not need to be rendered for example. How, in practice, should these systems be implemented?

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• What solutions do I have to enforce memory limit on PHP server?

  - by Zulgrib

  I would like to enforce memory limit on a folder basis (and have it applied on subfolders) but I don't want the user able to change the memory limit. I know I can disable ini_set and I know I can enforce a hard limit or deny ini_set with Suhosin. With the first one, I doubt it will block changing it from the user.ini file, for the second, the user may still be able to change it to the hard limit I enforce with Suhosin. In both cases, I would prefer to not entierly block ini_set because it may have a legit use for other settings. In case it is important, I'm using PHP version 5.4.4 with nginx (PHP in FPM mode)

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• HP dv6000 laptop powers on only if plugged in

  - by Ben

  My HP dv6000 laptop will not run on battery power. It will only run while plugged into the wall. I have already replaced the battery, but it still will not operate on battery power. The problem began slowly. The original battery's life got shorter and shorter, until eventually it would only last ~45 seconds before going into hibernation. Finally, the battery would not work at all, so I threw it out and just used it without a battery. I bought a replacement recently.... but the problem persists. When I connect the new battery to the system, the "charging" light turns on for about 30 seconds, then goes dark. I'm assuming there's something wrong with the internal charging circuitry? If this is the case, how would I go about fixing this, short of buying a new motherboard? If anyone could give me some assistance in confirming/rejecting my diagnosis I'd be very appreciative! :)

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• Unit test SHA256 wrapper queries

  - by Sam Leach

  I am just beginning to write unit tests. So please bear with me. I have the following SHA256 wrapper. public static string SHA256(string plainText) { StringBuilder sb = new StringBuilder(); SHA256CryptoServiceProvider provider = new SHA256CryptoServiceProvider(); var hashedBytes = provider.ComputeHash(Encoding.UTF8.GetBytes(plainText)); for (int i = 0; i < hashedBytes.Length; i++) { sb.Append(hashedBytes[i].ToString("x2").ToLower()); } return sb.ToString(); } Do I want to be testing it? If so, what do you recommend? My thought process is as follows: What logic is there here. The answer is my for loop and ToString("x2") so from my understanding I want to be testing this part? I can assume Encoding.UTF8.GetBytes(plainText) works. Correct assumption? I can assume SHA256CryptoServiceProvider.ComputeHash() works. Correct assumption? I want to be only testing my logic. In this case is limited to the printing of hex encoded hash. Correct? Thanks.

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• Best way to transfer files across unstable LAN?

  - by JamesTheAwesomeDude

  This is very similar to Question 326211, but in this case, the LAN is an unstable Wi-Fi connection. I need to transfer about 11 GiB of files between two computers, both running Linux (although one may be rebooted into Windows.) Their connection is both slow and unstable (due to Linux's awful Wi-Fi support,) but removable media (such as a flash drive or external hard drive) is not an option at this time. Right now, I'm slowly transferring the files, one by one, across SFTP, but I have to reconnect each computer approximately every 90 seconds, and the computers are not very close to each other, so this is not feasible. This is not a duplicate of Question 30186; that one specifically concerns Windows 7, and all the proposed solutions involve closed-source, Windows-only programs (which are all spyware IMHO, and are all off the table even if I trusted them - one of the computers is Linux-only.)

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• CodePlex Daily Summary for Wednesday, June 04, 2014

  CodePlex Daily Summary for Wednesday, June 04, 2014Popular ReleasesSEToolbox: SEToolbox 01.032.018 Release 1: Added ability to merge/join two ships, regardless of origin. Added Language selection menu to set display text language (for SE resources only), and fixed inherent issues. Added full support for Dedicated Servers, allowing use on PC without Steam present, and only the Dedicated Install. Added Browse button for used specified save game selection in Load dialog. Installation of this version will replace older version.DNN Blog: 06.00.07: Highlights: Enhancement: Option to show management panel on child modules Fix: Changed SPROC and code to ensure the right people are notified of pending comments. (CP-24018) Fix: Fix to have notification actions authentication assume the right module id so these will work from the messaging center (CP-24019) Fix: Fix to issue in categories in a post that will not save when no categories and no tags selectedcsv2xlsx: Source code: Source code of applicationHigLabo: HigLabo_20140603: Bug fix of MimeParser for nested MimeContent parsing.Family Tree Analyzer: Version 4.0.0.0-beta2: This major release introduces a significant new feature the ability to search the UK Ordnance Survey 50k Gazetteer for small placenames that often don't appear on a modern Google Map. This means significant numbers of locations that were previously not found by Google Geocoding will now be found by using OS Geocoding. In addition I've added support for loading the Scottish 1930 Parish boundary maps, whilst slightly different from the parish boundaries in use in the 1800s that are familiar to...TEncoder: 4.0.0: --4.0.0 -Added: Video downloader -Added: Total progress will be updated more smoothly -Added: MP4Box progress will be shown -Added: A tool to create gif image from video -Added: An option to disable trimming -Added: Audio track option won't be used for mpeg sources as default -Fixed: Subtitle position wasn't used -Fixed: Duration info in the file list wasn't updated after trimming -Updated: FFMpegSSIS Multiple Hash: Multiple Hash 1.6.2.3: Release Notes This release is an SQL 2014 fix release. It addresses the following: The 1.6.1.2 release's SQL 2014 installer didn't work for SQL 2014 RTM. The x64 installer also showed x86 for both x64 and x86 in SQL 2014. Please download the x64 of x32 file based on the bitness of your SQL Server installation. BIDS or SSDT/BI ONLY INSTALLS ARE NOT DETECTED. You MUST use the Custom install, to install when the popup is shown, and select which versions of SQL Server are available. A war...QuickMon: Version 3.14 (Pie release): This is unofficially the 'Pie' release. There are two big changes.1. 'Presets' - basically templates. Future releases might build on this to allow users to add more presets. 2. MSI Installer now allows you to choose components (in case you don't want all collectors etc.). This means you don't have to download separate components anymore (AllAgents.zip still included in case you want to use them separately) Some other changes:1. Add/changed default file extension for monitor packs to *.qmp (...VeraCrypt: VeraCrypt version 1.0d: Changes between 1.0c and 1.0d (03 June 2014) : Correct issue while creating hidden operating system. Minor fixes (look at git history for more details).Keepass2Android: 0.9.4-pre1: added plug-in support: See settings for how to get plug-ins! published QR plug-in (scan passwords, display passwords as QR code, transfer entries to other KP2A devices) published InputStick plugin (transfer credentials to your PC via bluetooth - requires InputStick USB stick) Third party apps can now simply implement querying KP2A for credentials. Are you a developer? Please add this to your app if suitable! added TOTP support (compatible with KeeOTP and TrayTotp) app should no l...The IRIS Toolbox Project: IRIS Reference Manual Release 20140602: Reference Manual for Release 20140602.Microsoft Web Protection Library: AntiXss Library 4.3.0: Download from nuget or the Microsoft Download Center This issue finally addresses the over zealous behaviour of the HTML Sanitizer which should now function as expected once again. HTML encoding has been changed to safelist a few more characters for webforms compatibility. This will be the last version of AntiXSS that contains a sanitizer. Any new releases will be encoding libraries only. We recommend you explore other sanitizer options, for example AntiSamy https://www.owasp.org/index....Z SqlBulkCopy Extensions: SqlBulkCopy Extensions 1.0.0: SqlBulkCopy Extensions provide MUST-HAVE methods with outstanding performance missing from the SqlBulkCopy class like Delete, Update, Merge, Upsert. Compatible with .NET 2.0, SQL Server 2000, SQL Azure and more! Bulk MethodsBulkDelete BulkInsert BulkMerge BulkUpdate BulkUpsert Utility MethodsGetSqlConnection GetSqlTransaction You like this library? Find out how and why you should support Z Project Become a Memberhttp://zzzproject.com/resources/images/all/become-a-member.png|ht...Tweetinvi a friendly Twitter C# API: Tweetinvi 0.9.3.x: Timelines- Added all the parameters available from the Timeline Endpoints in Tweetinvi. - This is available for HomeTimeline, UserTimeline, MentionsTimeline // Simple query var tweets = Timeline.GetHomeTimeline(); // Create a parameter for queries with specific parameters var timelineParameter = Timeline.CreateHomeTimelineRequestParameter(); timelineParameter.ExcludeReplies = true; timelineParameter.TrimUser = true; var tweets = Timeline.GetHomeTimeline(timelineParameter); Tweetinvi 0.9.3.1...Sandcastle Help File Builder: Help File Builder and Tools v2014.5.31.0: General InformationIMPORTANT: On some systems, the content of the ZIP file is blocked and the installer may fail to run. Before extracting it, right click on the ZIP file, select Properties, and click on the Unblock button if it is present in the lower right corner of the General tab in the properties dialog. This release completes removal of the branding transformations and implements the new VS2013 presentation style that utilizes the new lightweight website format. Several breaking cha...ClosedXML - The easy way to OpenXML: ClosedXML 0.71.2: More memory and performance improvements. Fixed an issue with pivot table field order.Magick.NET: Magick.NET 6.8.9.101: Magick.NET linked with ImageMagick 6.8.9.1. Breaking changes: - Int/short Set methods of WritablePixelCollection are now unsigned. - The Q16 build no longer uses HDRI, switch to the new Q16-HDRI build if you need HDRI.fnr.exe - Find And Replace Tool: 1.7: Bug fixes Refactored logic for encoding text values to command line to handle common edge cases where find/replace operation works in GUI but not in command line Fix for bug where selection in Encoding drop down was different when generating command line in some cases. It was reported in: https://findandreplace.codeplex.com/workitem/34 Fix for "Backslash inserted before dot in replacement text" reported here: https://findandreplace.codeplex.com/discussions/541024 Fix for finding replacing...SoundCloud Downloader: SC Downloader V1.0: Newest release Requirements .NET Framework 4.0/4.5 Changes since releasing the source Replaced ProgressBar and Buttons with the ones i created from scratch, you may use the .dll files on your own risk. Changed the authentication mode to Windows NOTE! When extracted, execute setup.exe to launch the installer! NOTE! ENJOY!VG-Ripper & PG-Ripper: VG-Ripper 2.9.59: changes NEW: Added Support for 'GokoImage.com' links NEW: Added Support for 'ViperII.com' links NEW: Added Support for 'PixxxView.com' links NEW: Added Support for 'ImgRex.com' links NEW: Added Support for 'PixLiv.com' links NEW: Added Support for 'imgsee.me' links NEW: Added Support for 'ImgS.it' linksNew Projects2112110148: 2112110148 Kieu Thi Phuong AnhAutoHelp: Inspired by Docy, AutoHelp exposes XML documentation embedded in sources code. a MVC 5 / typescripted connected on Webapi, AutoHelp is a modern HTML 5 appFeedbackata: An exercise in interactive development.Ideaa: A place to get inspired and find ideas about a topic you are interested inImpression Studio - Free presentation Maker Tool: Impression Studio is a free presentation maker tool based on impress.js library. It aims to be free alternative to prezi. This tool is under heavy development.LavaMite: LavaMite is a program that aims to capture the random wax formations that arise in a lava lamp before it is bubbling freely.Load Runner - HTTP Pressure Test Tool: A Lightweight HTTP pressure test tool supports multi methods / content type / requests, written in C# 4.0.Microsoft Research Software Radio SDK: Microsoft Research Software Radio SDKMsp: MspPower Torrent: Windows PowerShell module enabling BitTorrent (R) functionalities.

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• Needs free/ opensource network monitoring tool for office LAN

  - by Amit Ranjan

  I know there must be a lot similar questions on SU. Let me explain my setup first. I have 4-5 PC, Laptops and Few Android Phones in my office. To get them on a network , I have a UTStarCom, WA3002G1 ADSL2+ router with a landline broadband connection which has nothing to do with any PC except the configuration settings. Broadband channel is always on, we need to switch on the router and the internet is ready for us. No Internet Connection sharing is done via any PC. I have a limited 20GB monthly plan, which is consumed in 10-20 days, depending upon the download requirements. So in the above case, i need some suggestions from you: How do I monitor my Internet Bandwidth along-with the connected systems, realtime? Any free opensource tool available? Tweaks / Changes in PC to save bandwidth as my ISP do not have any Unlimited plan. PC and Laptops are Windows XP and/Or windows 7. Either of the platform tools are welcome.

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• How to edit semi-plaintext file and maintaining character structure?

  - by Raul

  I am using a software (Groupmail from Infacta) that uses exact / absolute %PATHS% for saving some settings in specific semi-plaintext file. This is a really bad idea because you can't move to USER folder, or like my case it does not work after migrating to a new computer with different language. For example: C:\Documents and Settings\USER\Local Settings\Application Data\Infacta is different than C:\Documents and Settings\USER\Configuración local\Datos de programa\Infacta Obviously, the software does not work well. I tried to solve this using Find/Replace the new PATH with Notepad++. While the Groupmail software loads well and shows settings correctly, the software fails when trying to save data on that file. I guess this is because length or number of replaced characters is different and also it corrupt the file. Please could you help me to edit this file maintaining file integrity / structure?

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• how to find a text string which may be present in some unknown file in entire filesystem

  - by Registered User

  I am stuck up with a problem I have a line 'something' in some file. In which file is this line that I have forgotten. In the entire root file system I would like to find out which file and where is this line. So how can I go for this.I have used find but when I used find then I knew the name of file in this case I do not know name of file also. It is a Ubuntu server 10.04 So what can I do to find out which file has this string.

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• Using an Apt Repository for Paid Software Updates

  - by Scott Warren

  I'm trying to determine a way to distribute software updates for a hosted/on-site web application that may have weekly and/or monthly updates. I don't want the customers who use the on-site product to have to worry about updating it manually I just want it to download and install automatically ala Google Chrome. I'm planning on providing an OVF file with Ubuntu and the software installed and configured. My first thought on how to distributed software is to create six Apt repositories/channels (not sure which would be better at this point) that will be accessed through SSH using keys so if a customer doesn't renew their subscription we can disable their account: Beta - Used internally on test data to check the package for major defects. Internal - Used internally on live data to check the package for defects (dog fooding stage). External 1 - Deployed to 1% of our user base (randomly selected) to check for defects. External 9 - Deployed to 9% of our user base (randomly selected) to check for defects. External 90 - Deployed to the remaining 90% of users. Hosted - Deployed to the hosted environment. It will take a sign off at each stage to move into the next repository in case problems are reported. My questions to the community are: Has anyone tried something like this before? Can anyone see a downside to this type of a procedure? Is there a better way?

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• Generating Deep Arrays: Shallow to Deep, Deep to Shallow or Bad idea?

  - by MobyD

  I'm working on an array structure that will be used as the data source for a report template in a web app. The data comes from relatively complex SQL queries that return one or many rows as one dimensional associative arrays. In the case of many, they are turned into two dimensional indexed array. The data is complex and in some cases there is a lot of it. To save trips to the database (which are extremely expensive in this scenario) I'm attempting to get all of the basic arrays (1 and 2 dimension raw database data) and put them, conditionally, into a single, five level deep array. Organizing the data in PHP seems like a better idea than by using where statements in the SQL. Array Structure Array of years( year => array of types( types => array of information( total => value, table => array of data( index => db array ) ) ) ) My first question is, is this a bad idea. Are arrays like this appropriate for this situation? If this would work, how should I go about populating it? My initial thought was shallow to deep, but the more I work on this, the more I realize that it'd be very difficult to abstract out the conditionals that determine where each item goes in the array. So it seems that starting from the most deeply nested data may be the approach I should take. If this is array abuse, what alternatives exist?

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• can anyone help me through the preparation of Eclipse IDE for android developer in ubuntu 12.04?

  - by csbl

  I'm new to to Linux, in this particular case, to Ubuntu. I have a small android project I have to finnish until this Friday and I'm still stuck with the install and preparing of the development envrironment. The only thing I did was install the Eclipse IDE. I'm still missing the SDK, JAVA and anything else that might be needed. Can someone help me through this? It's only because I'm running out of time to develop, or else I would embarc on a deeper investigation of this OS. I tried the step to install android platforms, through Eclispe-Help-Install New Software, and I got the follwoing error messages, at the end of the process: [2012-06-06 17:35:56 - adb] /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] 'adb version' failed! /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] Failed to parse the output of 'adb version': Standard Output was: Error Output was: /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] 'adb version' failed! /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] Failed to parse the output of 'adb version': Standard Output was: Error Output was: /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory Can anyone help, please??

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• Gigabyte Motherboard + Adaptec RAID = No Booting from any drives

  - by Farseeker

  I have a brand new PC, just out of the box. It has a Gigabyte GA-P55-USB3 motherboard. I also have an Adaptec ASR-2504 SAS RAID card with 2x 15k Seagate Barracuda SAS drives attached. After the motherboard init's its on-board RAID it then init's the Adaptec RAID. It detects all the RAID devices OK, but when it gets to Loading Operating System... (i.e. right before it should load the OS) it just sits there forever, doing nothing: If I force it to boot from the optical drive, you see it spin up for a few seconds then die down again. If I remove the Adaptec RAID card, everything works perfectly. As soon as it's plugged back in, it never gets past that stage. The RAID card should be perfectly fine (it was before), but I have raised a case with Adaptec anyway. Any suggestions on what I can try to get these two to play nicely together?

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• Help with IPTables - Masquerading + Forwarding, 1-to-1?

  - by Artiom Chilaru

  I've got a clean Ubuntu Server 10.10 with OpenSSH, OpenVPN and vsFTPd installed. The server is running as a VM on the Hyper-V server (hypervisor), has two network interfaces mapped to physical adapters (eth0 and eth1), and a virtual interface with a direct connection to the hypervisor (eth2). The VPN will create a tun0 interface when a client connects. What I want is the remote user, connecting over VPN to be able to connect to the hypervisor (all ports, ping etc). The initial idea was to make the VPN create a tap0 interface, and bridge eth2 to tap0, but this didn't work, unfortunately, as it seems that the adapters don't want to go into promiscuous mode (partially confirmed by MS) At the same time, both the hypervisor and the remove client over VPN can successfully ping/connect to the ubuntu server with no problems. So my plan right now is to try doing some 1-1 masquerading, if possible. Basically, I want every request sent from the VPN client to the ubuntu server to be redurected to the hypervisor instead (with IP translation ofc), and every request from the hypervisor to the ubuntu machine sent to the VPN client (IP translated too). Only 1 client will be connected at a time to the VPN, so I can force limit it to a single IP at all times, if necessary. Is this the right way to go, and if true, how can this be achieved? It's almost like a special case of port-forwarding, except every single port on tun0 is forwarded to a machine in eth2, and every port on the eth2 side forwards to an ip on tun0 I guess it could be done with iptables, but I'm rather new in linux, so I can't do it myself... help? :(

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• unknown module in my server to get PHP errors in HTML tables

  - by Javier Novoa C.

  Sorry to ask this... I manage Apache and PHP in my computer. But having installed a lot of things, I've lost track of some of them. (Things I find really useful to have at my job, or to restore in case of emergency). The problem is that I have installed this thing which displays PHP errors in a nice and colored html table, but can't remember what I have installed or configured to get it work like it. Can you give me a hint about it? I'm using Debian Lenny, Apache 2.2 and PHP 5.2 Here's a screenshot: Thank you very much for reading. Javier

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