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• A Virtual(Box) Christmas!

  - by Gilles Gravier

  Hello and merry Christmas everybody!Yes. This year, it's a v4.0 Xmas! VirtualBox just came out with a new major version release. Version 4.0 is available at : http://www.virtualbox.org/wiki/Downloads ... and of course, it's open source, and it's free. And I suggest (strongly) that you also download the free Extension Pack from the same page... Brings USB 2.0 emulation and more!I upgraded the version on my Solaris Express (get that from : http://www.oracle.com/solaris/index.html and follow the Download Solaris Express link on the right) laptop (pfexec pkgrm SUNWvbox and then pfexec pkgadd -d the .pkg in the compressed archive file, and install the extensions from the VBox GUI once it's launched). If you are on an old fashion OS without proper RBAC, replace pfexec by sudo. Which you can also do on Solaris if you really want to. :)I tell you, it's Christmas, for sure!Merry VBox!Gilles.

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• Plug-in or framework recommendation for showing content preview fly-over in CMS

  - by Michael Huang

  The requirement is to have either front end plug-in or back end processor that generates the preview of contents (such as images, videos, PDF files, HTML pages) in a preview popup when user mouse hovers the content. I did some research on this, seems that there are assorted jquery plugins for each type of files, but what we are looking for is a framework that handles all types of file previews. Ideally, we want to generate preview images on the backend, considering the cost of retrieving content on front end. I did find some open source or proprietary CMS that provides this feature, but usually they are shipped as one suite and the API for file preview might not be open. Is there any java or jquery framework that handles file preview? Thanks a lot

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• Ubuntu 12.04 nVidia TwinView tearing

  - by Andy Turfer

  I'm running Ubuntu 12.04. Today I just purchased a second monitor (I have a Dell U2711 and a 42-inch Sony TV). I'm running the 295.49 proprietary nVidia graphics driver, my graphics card is a GeForce GTX 460. I am not able to activate "xinerama" with "separate X screens", not sure why. I am able to use TwinView. This works, although it results in severe tearing on the Sony TV. It's as though "sync to vblank" isn't working (I have this set in Compiz and in the nVidia settings). If I disable the Dell U2711 and only use the Sony, everything works fine, zero tearing. Is it the case that "sync to vblank" can only work on a single monitor in Ubuntu 12.04? Is there any way to get rid of the tearing on the second monitor in TwinView mode?

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• Cliché monsters to populate a steampunk fantasy setting dwarven dungeon?

  - by Alexander Gladysh

  I'm looking for a list of cliché monsters for a steampunk computer game (assume one kind or another of casual rogue-like RPG), to populate lower levels of ancient dwarven-built dungeons. Dwarves are a technology/science race in the setting I am aiming for. The world is a low-magic one. I'm stuck after listing various mechanical golems, gigantic spiders (every dungeon must have some of them!), and maybe a mechanical barlog as a megaboss. What would player expect? What are the key cultural references for such setting? I know a couple of games with suitable steampunk dwarves, but none are detailed enough in the underworld monsters area. Please point me in the right direction. (If you have a single funny monster suggestion, please mention it in comments, not in answer. ;-) )

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• If all variables are a subset of the superkey, is the database design 5NF? [migrated]

  - by Lukazoid

  I have a table called LogMessages, which has the following columns: Level A numeric value which represents Trace, Debug, Info, Warning, Error or Fatal Time A UTC time Message Foreign key to a Messages table Source Foreign key to a Sources table User Foreign key to a Users table From what I can see, all of these columns are a part of the super key; if any single value differs to an existing row, a new row can be created. My question is, does this design comply to fifth normal form? I am unsure as some groups of data will be repeating, however I don't believe this violates 5NF? (correct me if I'm wrong)

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• Troubleshooting Blocked Transaction in SQL Server

  - by ChrisD

  While troubleshooting a blocked transaction issue recently, I found this code online.  My apologies in not citing its source, but its lost in my browse history some where.   While the transaction is executing and blocked, open a connection to the database containing the transaction and run the following to return both the SQL statement blocked (the Victim), as well as the statement that’s causing the block (the Culprit)   -- prepare a table so that we can filter out sp_who2 results DECLARE @who TABLE(BlockedId INT, Status VARCHAR(MAX), LOGIN VARCHAR(MAX), HostName VARCHAR(MAX), BlockedById VARCHAR(MAX), DBName VARCHAR(MAX), Command VARCHAR(MAX), CPUTime INT, DiskIO INT, LastBatch VARCHAR(MAX), ProgramName VARCHAR(MAX), SPID_1 INT, REQUESTID INT) INSERT INTO @who EXEC sp_who2 --select the blocked and blocking queries (if any) as SQL text SELECT ( SELECT TEXT FROM sys.dm_exec_sql_text( (SELECT handle FROM ( SELECT CAST(sql_handle AS VARBINARY(128)) AS handle FROM sys.sysprocesses WHERE spid = BlockedId ) query) ) ) AS 'Blocked Query (Victim)', ( SELECT TEXT FROM sys.dm_exec_sql_text( (SELECT handle FROM ( SELECT CAST(sql_handle AS VARBINARY(128)) AS handle FROM sys.sysprocesses WHERE spid = BlockedById ) query) ) ) AS 'Blocking Query (Culprit)' FROM @who WHERE BlockedById != ' .'

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• Is there any advantage/disadvantage to using robots.txt to disallow access to legal pages such as terms, privacy policy, etc.?

  - by CaptainCodeman

  As I understand, having repetitive content is a detriment to search engine placement. Given that many websites that use similar or even identical "Terms and Conditions" and "Privacy Policy" pages due to similar legal wording or due to copy & pasting from the same source, would it be a good idea to disallow access to these pages via robots.txt, in order to avoid being penalized for "non-original content"? Or, on the contrary, could the search engines identify this as circumvention and penalize the site for trying to hide content? Or does it not matter?

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• 2D game big background images for maps

  - by WhiteCat

  Update: this question is general, not specific to Sprite Kit or a single language/platform. I'm toying with Sprite Kit with an idea to make a 2D side-scroller. Now the backgrounds for the maps are going to be hand-drawn and surely bigger than retina display, so the maps could span more than 1 screen in both axis. I imagine loading such a huge image could mean trouble and I don't plan to use tiling. I'm not sure how Sprite Kit splits images bigger than max texture size, if it does. I could split the images myself and use more sprites for each part of the background. What is the usual way to handle this?

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• Xamarin abandonne Moonlight, la version Mono de Silverlight, la plateforme a-t-elle encore un avenir ?

  Xamarin abandonne Moonlight la version Mono de Silverlight, la plateforme a-t-elle encore un avenir ? Microsoft supportera la version 5 de Silverlight jusqu'en 2021, et pourrait même développer une version 6. Mais, une implémentation de la plateforme de développement d'applications Web riches ne bénéficiera d'une telle faveur. Xamarin, la startup à l'origine de Mono, l'implémentation Open Source multiplateforme de .NET vient d'annoncer la fin de Moonlight, la version Mono de Silverlight. En dépit d'un manque de ressources, Miguel de Icaza créateur de Mono ne croit plus en Silverlight : « Silverlight n'a pas été beaucoup adopté sur le Web de sorte qu'il devienne la technologie ...

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• The resulting .iso doesn't work - MultiCD

  - by Ravi

  Burning a separate CD for each distribution (Ubuntu, Kubuntu etc.) is cumbersome. I found MultiCD which promises me to have a single DVD which can hold several distributions. It is very great tool. Main Problem : The resulting .iso created from multicd doesn't work in a USB pen drive through I haven't tested it in a DVD. Running the .iso through pen drive (I mean booting from pen drive) doesn't work. I cannot even run it in live mode or can install it. Concern : I think if I burn the .iso to a DVD then might it will work. But considering it doesn't work in the pen drive, Will it work on the DVD? So how to fix it? If you know other method to make a multi CD/DVD then please tell me.

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• Why does the Git community seem to ignore side-by-side diffs

  - by Kyle Heironimus

  I used to use Windows, SVN, Tortoise SVN, and Beyond Compare. It was a great combination for doing code reviews. Now I use OSX and Git. I've managed to kludge together a bash script along with Gitx and DiffMerge to come up with a barely acceptable solution. I've muddled along with this setup, and similar ones, for over a year. I've also tried using the Github diff viewer and the Gitx diff viewer, so it's not like I've not given them a chance. There are so many smart people doing great stuff with Git. Why not the side-by-side diff with the option of seeing the entire file? With people who have used both, I've never heard of anyone that likes the single +/- view better, at least for more than a quick check.

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• Programmer logbook application?

  - by jsoldi

  I've just released my application to the public, and I'm working on an updated version, but I really think I should keep track of ALL the code changes. In case some functionality suddenly starts failing, with a history of all the changes I made it would be a lot easier to figure out where I messed it up, in case the problem wasn't already there. The ideal would be to have a super fast computer with a huge hard drive and an application that automatically saves a backup of the whole project every time I change a line in the code, with some file comparison tool that would show me every difference between any two backed up projects, but that's not really possible for now. So, do you know any application that makes it easy for a programmer to keep track of the changes made to the source code?

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• Scrolling Box2D DebugDraw

  - by onedayitwillmake

  I'm developing a game using Box2D (javascript implementation - Box2DWeb), and I would like to know how I can pan the debug draw. I know the usual answer is - don't use debug draw, it's just for debugging. I'm not, however not all my objects are on the same screen, and i'd like to see where they are in the physics representation. How can I pan the debug drawing? As you can see the debug draw stuff, is show on the top left, but it only shows a small part of the world. Here is an example of what I mean: http://onedayitwillmake.com/ChuClone/ The game is open source, If you'd like to poke through and note something that perhaps i'm doing something that is obviously wrong: https://github.com/onedayitwillmake/ChuClone

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• Is it Considered Good SQL practice to use GUID to link multiple tables to same Id field?

  - by Mallow

  I want to link several tables to a many-to-many(m2m) table. One table would be called location and this table would always be on one side of the m2m table. But I will have a list of several tables for example: Cards Photographs Illustrations Vectors Would using GUID's between these tables to link it to a single column in another table be considered 'Good Practice'? Will Mysql let me to have it automatically cascade updates and delete? If so, would multiple cascades lead to an issues? UPDATE I've read that GUID (a hex number) Generally takes up more space in a database and slows queries down. However I could still generate 'unique' ids by just having the table initial's as part of the id so that the table card's id would be c0001, and then Illustrations be I001. Regardless of this change, the questions still stands.

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• Power View Infrastructure Configuration and Installation: Step-by-Step and Scripts

  This document contains step-by-step instructions for installing and testing the Microsoft Business Intelligence infrastructure based on SQL Server 2012 and SharePoint 2010, focused on SQL Server 2012 Reporting Services with Power View. This document describes how to completely install the following scenarios: a standalone instance of SharePoint and Power View with all required components; a new SharePoint farm with the Power View infrastructure; a server with the Power View infrastructure joined to an existing SharePoint farm; installation on a separate computer of client tools; installation of a tabular instance of Analysis Services on a separate instance; and configuration of single sign-on access for double-hop scenarios with and without Kerberos. Scripts are provided for all/most scenarios.

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• How to install wvdial without getting the following error?

  - by chndn

  When I ran the command: sudo apt-get install wvdial I got this error message : error p@p:~$ sudo apt-get install wvdial Reading package lists... Done Building dependency tree Reading state information... Done Package wvdial is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package wvdial has no installation candidate p@p:~$ So how can I install wvdial? I don't have access to internet from Ubuntu for direct installation. Please help

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• What are the system requirements for each flavor of Ubuntu Desktop?

  - by Braiam

  I'm thinking about installing Ubuntu Desktop, but I don't know what flavor is the better for my system. What are the minimum and recommended hardware requirements? What kind of CPU? How much memory? Should I have Hardware Acceleration? What flavor should I use? This is an attempt of a canonical answer. My answers have the "official minimal requirements", the recommended are a mix of official sources and opinion based (along with the answer it's told the source). You can comment or edit if you feel that the information is obsolete or incomplete. Is a good rule of thumb that any system capable to run Windows Vista, 7, 8 x86 OS X will almost always be a lot faster with any Ubuntu flavor even if they are lower-spec than described below.

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• Modifying the SL/WIF Integration Bits to support Issued Token Credentials

  - by Your DisplayName here!

  The SL/WIF integration code that ships with the Identity Training Kit only supports Windows and UserName credentials to request tokens from an STS. This is fine for simple single STS scenarios (like a single IdP). But the more common pattern for claims/token based systems is to split the STS roles into an IdP and a Resource STS (or whatever you wanna call it). In this case, the 2nd leg requires to present the issued token from the 1st leg – this is not directly supported by the bits. But they can be easily modified to accomplish this. The Credential Fist we need a class that represents an issued token credential. Here we store the RSTR that got returned from the client to IdP request: public class IssuedTokenCredentials : IRequestCredentials {     public string IssuedToken { get; set; }     public RequestSecurityTokenResponse RSTR { get; set; }     public IssuedTokenCredentials(RequestSecurityTokenResponse rstr)     {         RSTR = rstr;         IssuedToken = rstr.RequestedSecurityToken.RawToken;     } } The Binding Next we need a binding to be used with issued token credential requests. This assumes you have an STS endpoint for mixed mode security with SecureConversation turned off. public class WSTrustBindingIssuedTokenMixed : WSTrustBinding {     public WSTrustBindingIssuedTokenMixed()     {         this.Elements.Add( new HttpsTransportBindingElement() );     } } WSTrustClient The last step is to make some modifications to WSTrustClient to make it issued token aware. In the constructor you have to check for the credential type, and if it is an issued token, store it away. private RequestSecurityTokenResponse _rstr; public WSTrustClient( Binding binding, EndpointAddress remoteAddress, IRequestCredentials credentials )     : base( binding, remoteAddress ) {     if ( null == credentials )     {         throw new ArgumentNullException( "credentials" );     }     if (credentials is UsernameCredentials)     {         UsernameCredentials usernname = credentials as UsernameCredentials;         base.ChannelFactory.Credentials.UserName.UserName = usernname.Username;         base.ChannelFactory.Credentials.UserName.Password = usernname.Password;     }     else if (credentials is IssuedTokenCredentials)     {         var issuedToken = credentials as IssuedTokenCredentials;         _rstr = issuedToken.RSTR;     }     else if (credentials is WindowsCredentials)     { }     else     {         throw new ArgumentOutOfRangeException("credentials", "type was not expected");     } } Next – when WSTrustClient constructs the RST message to the STS, the issued token header must be embedded when needed: private Message BuildRequestAsMessage( RequestSecurityToken request ) {     var message = Message.CreateMessage( base.Endpoint.Binding.MessageVersion ?? MessageVersion.Default,       IssueAction,       (BodyWriter) new WSTrustRequestBodyWriter( request ) );     if (_rstr != null)     {         message.Headers.Add(new IssuedTokenHeader(_rstr));     }     return message; } HTH

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• Using normals in DirectX 10

  - by Dave

  I've got a working OBJ loader that loads vertices, indices, texture coordinates, and normals. As of right now it doesn't process texture coordinates or normals but it stores them in arrays and creates a valid mesh with the vertices and indices. Now I am trying to figure out how can I make the shader use the correct normal in the array for the current vertex if I can't setnormals() to my mesh. If I were to just use an index in my array of normals corresponding to the index in the vertices, how would I retrieve the current index the shader is processing? BTW: I am trying to write a blinn-phong shader technique. Also when I create the input layout and I've added the semantic NORMAL to it, how would I list the multiple semantics in that single parameter? Would I just separate it with a space? PS: If you need to see any code, just let me know.

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• Update problems due to "installation of packages from not authenticated sources" error

  - by Denis Hoss

  I have some problems updating my Ubuntu Requires installation of untrusted packages The action would require the installation of packages from not authenticated sources. cinnamon gir1.2-muffin-3.0 libgnome-keyring-common libgnome-keyring0 libmuffin0 muffin-common The downloads are from the Main server, the Source code under Ubuntu Software tab is marked Is there something I have missed? The output of sudo apt-get update is: W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A9653F936FD5529 W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A777609328949509 W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ oneiric/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_oneiric_partner_binary-i386_Packages)

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• Lenovo IdeadPad S10-3c problems

  - by LenovoUser

  please help me fix these problems because i really like ubuntu 12.04 and i have replaced my windows 7 ultimate for this everytime i turn on my ideapad it hangs, but when i insert my usb device that i used for the installation and restart my ideapad, it works. How can i open my lenovo without my usb device? my keboard doesn't work. i pressed each key and none of it work. those are the first two problems, i haven't tried the microphone, speaker and webcam yet because I really hate that i can't even type a single letter. please do fix this problem.

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• GUI question : representing large tree

  - by Peter

  I have a tree-like datastructure of some six levels deep, that I would like to represent on a single webpage (can be tabs, trees; ....) In each level both childnodes and content are possible. Presenting it like a real tree would be not very usable (too big). I was thinking in the lines of hiding parts of the tree when you drill down and presenting a breadcrumbs or the like to keep you informed as to where you are... I guess my question boils down to : any ideas / examples ? Tx!

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• Service Account Management in SharePoint 2013

  - by Sahil Malik

  SharePoint, WCF and Azure Trainings: more information My newest article detailing Service Account management in SharePoint 2013 is now online. Who thought such a simple need could have so many nuances. Hope you like it With this, I am going to do a break – not taking time off, but switching gears. My next series of Articles are going to focus on writing Mobile Apps for SharePoint and Office 365. And I intend to cover every single scenario, On Prem, Cloud, Xamarin, HTML5, Cordova, and Native. I will show Windows and iOS, I’m an android dumbass, but space/time permitting I may show cordova android – anyway, for an Android guru the articles will provide enough information get rolling anyway. Read full article ....

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• Corsair Hydro i series cpu cooler fan control

  - by user214690

  Im relatively new at Ubuntu and have found an answer to basically every single issue ive ever had thru this site... Otherthan this. I have been toying with the idea of a Corsair h80i for my dual boot system (win7/U12.10) and mostly use it in ubuntu. I have done some research on the interweb regarding fan control in linux and nearly ran up short untill I came across this thread: http://ubuntuforums.org/archive/index.php/t-2096166.html And it seems to have worked around it. (altho I have not tested it for myself) Is there any program/library/source that can be used to control the fans without having to MacGuyver it??

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• Confuse with OpenGL, SFML, and its library

  - by Robinson Joaquin

  I am a beginning to enter the world of game development. Lately, I researched that "OPENGL" is one of the tools to use in graphics, then I found out about "SFML" (I think that its a library or something that uses opengl). I am so confuse because all books/ sites said using "GLUT", but many people/fellow developers said that I must use a more updated one like "SFML" but sfml has few/none tutorials. What I am trying to say is "how to create own library or something like your own glut or sfml", and why does opengl has no source code? And how can I use the EXACT(not glut/sfml) opengl in my c++ program? I am so confuse....

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