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• Where should I go to learn about networking? [closed]

  - by Ollie Saunders

  I wonder if anyone could recommend resource or resources such as a good book that: explains how all the important protocols work and interact. I’m interested in those that are relevant in a typical home network and used over the Internet explains in detail how ADSL Internet connections work to the level of depth necessary so that I’m able to tweak and measure performance settings starts from the beginning but attempts to provide proper understanding rather than idiot-oriented steps to follow Basically, I’m interested in how these technologies work and tend to be implemented in hardware and software rather than “here’s what to do if…” I’m interested in Computer Networking by Andrew S. Tanenbaum and I wonder if anyone else has any experience with that title. It’s expensive but I could probably loan a copy for £3 from the library or so.

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• Copying Metadata Between Files in iTunes

  - by Levi Hackwith

  A while back, I converted some AVI files to .m4v files that would be playable on my iPhone. When I play these files on my PC using iTunes the quality is terrible because the resolution is so low. My solution is to convert the AVI's using Handbrake using the "Universal" preset; it works like a charm and I can now watch them both on my PC and iPhone. The Problem I want to import the newly converted files into my iTunes library and be able to copy the metadata (show, season (these are TV episodes) Description, etc) without having to manually copy and paste values from one file to another. Is it possible to just say "copy this file's metadata to this file"?

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• Social Search: Looking for Love

  - by Mike Stiles

  For marketers and enterprise executives who have placed a higher priority on and allocated bigger budgets to search over social, it might be time to notice yet another shift that’s well underway. Social is search. Search marketing was always more of an internal slam-dunk than other digital initiatives. Even a C-suite that understood little about the new technology world knew it’s a good thing when people are able to find you. Google was the new Yellow Pages. Only with Google, you could get your listing first without naming yourself “AAAA Plumbing.” There were wizards out there who could give your business prominence in front of people who were specifically looking for what you offered. Other search giants like Bing also came along to offer such ideal matchmaking possibilities. But what if the consumer isn’t using a search engine to find what they’re looking for? And what if the search engines started altering their algorithms so that search placement manipulation was more difficult? Both of those things have started to happen. Experian Hitwise’s numbers show that visits to the major search engines in the UK dropped 100 million through August. Search engines are far from dead, or even challenged. But more and more, the public is discovering the sites and brands they need through advice they get via social, not search. You’ll find the worlds of social and search increasingly co-mingling as well. Search behemoths Google and Bing are including Facebook and Google+ into their engines. Meanwhile, Facebook and Twitter have done some integration of global web search into their platforms. So what makes social such a worthwhile search entity for brands? First and foremost, the consumer has demonstrated a behavior of acting on recommendations from social connections. A cry in the wilderness like, “Anybody know any good catering companies?” will usually yield a link (and an endorsement) from a friend such as “Yeah, check out Just-Cheese-Balls Catering.” There’s no such human-driven force/influence behind the big search engines. Facebook’s Mark Zuckerberg and others call it “Friend Mining.” It is, in essence, searching for answers from friends’ experiences as opposed to faceless code. And Facebook has all of those friends’ experiences already stored as data. eMarketer says search in an $18 billion business, and investors are really into it. So no shock Facebook’s ready to leverage their social graph into relevant search. What do you do about all this as a brand? For one thing, it’s going to lead to some interesting paid marketing opportunities around the corner, including Sponsored Stories bought against certain queries, inserting deals into search results, capitalizing on social search results on mobile, etc. Apart from that, it might be time to stop mentally separating social and search in your strategic planning and budgeting. Courting your fans on social will cumulatively add up to more valuable, personally endorsed recommendations for your company when a consumer conducts a search on social. Fail to foster those relationships, fail to engage, fail to provide knock-em-dead customer service, fail to wow them with your actual products and services…and you’ll wind up with the visibility you deserve in social search results.

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• Designing generic render/graphics component in C++?

  - by s73v3r

  I'm trying to learn more about Component Entity systems. So I decided to write a Tetris clone. I'm using the "style" of component-entity system where the Entity is just a bag of Components, the Components are just data, a Node is a set of Components needed to accomplish something, and a System is a set of methods that operates on a Node. All of my components inherit from a basic IComponent interface. I'm trying to figure out how to design the Render/Graphics/Drawable Components. Originally, I was going to use SFML, and everything was going to be good. However, as this is an experimental system, I got the idea of being able to change out the render library at will. I thought that since the Rendering would be fairly componentized, this should be doable. However, I'm having problems figuring out how I would design a common Interface for the different types of Render Components. Should I be using C++ Template types? It seems that having the RenderComponent somehow return it's own mesh/sprite/whatever to the RenderSystem would be the simplest, but would be difficult to generalize. However, letting the RenderComponent just hold on to data about what it would render would make it hard to re-use this component for different renderable objects (background, falling piece, field of already fallen blocks, etc). I realize this is fairly over-engineered for a regular Tetris clone, but I'm trying to learn about component entity systems and making interchangeable components. It's just that rendering seems to be the hardest to split out for me.

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• Notification framework for object lifecycle

  - by rlandster

  I am looking for an application, framework, or library that would help us with "object life-cycle management". There are many things that are created for users, departments, and services that, all too often, are left unmanaged. Some examples: user accounts groups SSL certificates access rights databases software license provisionings storage list-serve accounts These objects are created and managed by a wide variety of applications and systems. Typically, a user (person) requests (either explicitly or implicitly) one of these objects. A centralized management tool would help us manage such administration chores as: What objects does user X currently own/manage? Move the ownership of object P to user X; move all objects owned by user X (who was just been fired) to user Y. For all objects of type T that have expired be sure the objects have been disabled or deleted by their provider. How many active (expired, about-to-expire) objects of type P are there? Send periodic notifications to all users who own active objects of type P reminding them of what they own. There is a security alert for objects of type P; send a notification to all users who own these types of objects to take a specific remedial action. Delete or disable a set of objects based on expiration (or some other criteria). These objects are directly managed through their own applications (Active Directory, MySql, file systems, etc.) and may even have their own notification systems, but I want to centralize this into an "object management system". The OMS should allow the association with an external identity provider that defines who the users and groups are (e.g., LDAP, Active Directory) creation of objects association of an object to a specific user and/or group association with an expiration date creation of flexible reporting including letting users know what objects they currently own and their expiration dates integration with an external object "provider" via a plug-in We could write something from scratch, but I am hoping there is something already out there that will help, either an entire application or a set of libraries that provide much of what is needed. Any ideas?

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• Fun Upgrading to .Net 4.0

  - by Sam Abraham

  We are currently in the process of upgrading one of our applications to .Net 4.0. Aside from us geeks wanting to always use latest and greatest technologies, an immediate business need for Silverlight 4.0 features justified our upgrade endeavor. The following is a summary of some issues we ran into with our web project:   For security purposes, the IIS 7 .Net 4.0 ISAPI filter is disabled. “Allow” it from the ISAPI and CGI Restrictions screen as shown:   Figure 1 - Allowing ASP.Net 4.0 ISAPI Filter   By default the Web Setup Project only requires the .Net Framework 4 Client Profile to be installed on target system, which offers a lighter weight install for client machines consuming .Net 4.0 applications. However, using certain .Net 4.0 features requires the full .Net 4.0 Framework as outlined in this link: http://msdn.microsoft.com/en-us/library/cc656912.aspx. We hence needed to update the installer to require the complete .Net 4.0 Framework on the target machine and to prompt for its installation if needed.   To accomplish this goal, we updated the installer’s launch conditions to check for .Net 4.0 as well as the installer prerequisites as shown:     Figure 2- Ensure Web Setup Project runs on full .Net 4.0 version Figure 3 - Launch Conditions screen Figure 4 - Set launch condition to .Net 4.0. Figure 5 -Changing installer prerequisites Figure 6 -Changing installer prerequisites

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• Code &amp; Slides &ndash; SDE &ndash; What&rsquo;s new in Silverlight 4

  - by Timmy Kokke

  Last Tuesday the Software Developers Network – SDN organized another SDE. I’ve had the opportunity to present a session about Silverlight 4. I talked about lots of new features in Silverlight 4 and Expression Blend 4, focused on the Out-Of-Browser features.     The slides of my presentation can be downloaded here.   In my presentation I demonstrated a couple of features from my new pet project “SilverAmp”. This project is based on the legendary WinAmp, but made entirely in Silverlight. I use it to try out many new Silverlight 4 features. It’s not finished yet, but useful already. It runs outside the browser with elevated trust. It reads your local MyMusic folder and uses the TagLib library to read the ID3 tags of the mp3s it finds. SilverAmp is using MEF for extensibility. It uses a custom Window Chrome, designed in Expression Design. And it shows a notification window when a new song starts to play.   In the future it is going to get song information from Last.FM, will be able to show YouTube videos inside itself and it will tweet about what you are playing. The project will be fully documented to function as a reference implementation for the new Silverlight 4 features.   You can download the source on  http://SilverAmp.codeplex.com   Below are two screenshot of SilverAmp.                     If you have any questions, comments,  issues or feature requests let me know.

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• How to get iTunes to recognize that certain ID3 tags have been removed from files?

  - by Nick Meyer

  I use MusicBrainz Picard to manage the ID3 tags on my MP3 collection and iTunes for playing them and managing my iPod. I have Picard set to remove the Composer tag from any files that don't also contain the word "Classical" in the Genre tag. I've run Picard and it has removed the Composer tag from many of my files. However, iTunes keeps displaying the old value of the Composer field. I have tried right-clicking on the file to update, choosing "Get Info" and clicking OK. This has no effect on the Composer field when it has been removed entirely; it only refreshes the displayed value when it has been changed from one non-empty value to another. How can I get iTunes to stop showing the old values for tags that have been removed? Please note I don't want to lose other iTunes metadata such as ratings and play counts, so removing the files from the iTunes library and re-adding them is not an option.

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• Make sniqt recognize all tray abilities (or create a working indicator in Qt)

  - by hakermania

  There is this old thread of mine: How do I create a working indicator with Qt/C++? where I was suggested to use the QSystemTray library for making a tray icon in Ubuntu for my application. Sniqt is a program that takes care of the rest. As known, Ubuntu has got rid of tray icons. Instead, it now uses indicators and only indicators. Sniqt converts the Qt tray icons into working indicators. The problem is that it doesn't do a very decent convertion. Actions like single click, middle click etc do not work, while they do in systems that support tray icons. Is there a way to have these actions back? Can I use QSystemTray icon and still have these interesting (and very helpful, in my occasion) actions in Ubuntu? I would be glad to know the answer to the other thread I talked about earlier (how to make a working indicator using the GTK libraries and prevent the crash), as well. Link for Sniqt bug: https://bugs.launchpad.net/sni-qt/+bug/1027652

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• Automatic Generalization

  - by Nick Harrison

  I have been interested in functional programming since college. I played around a little with LISP back then, but I have not had an opportunity since then. Now that F# ships standard with VS 2010, I figured now is my chance. So, I was reading up on it a little over the weekend when I came across a very interesting topic. F# includes a concept called "Automatic Generalization". As I understand it, the compiler will look at your method and analyze how you are using parameters. It will automatically switch to a generic parameter if it is possible based on your usage. Wow! I am looking forward to playing with this. I have long been an advocate of using the most generic types possible especially when developing library classes. Use the highest level base class that you can get away with. Use an interface instead of a specific implementation. I don't advocate passing object around, but you get the idea. Tools like resharper, fxCop, and most static code analysis tools provide guidance to help you identify when a more generalized type is possible, but this is the first time I have heard about the compiler taking matters into its own hands. I like the sound of this. We'll see if it is a good idea or not. What are your thoughts? Am I missing the mark on what Automatic Generalization does in F#? How would this work in C#? Do you see any problems with this?

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• December 2012 OTN Member Offers

  - by Cassandra Clark - OTN

  Our partners have answered the special offer call just in time for you to either shop for the tech professional in your life or share the list below with someone who keeps asking you what you want for the holidays.  Go right to the Oracle Technology Network Member Discount Page or read on for more details. Oracle  Store has extended their 10% Savings through December 31st 2012.Oracle Press - Oracle Technology Network members get 40% off the latest Oracle Press book by Oracle ACE Directors Ben Prusinski and Gustavo Gonzalez, Oracle E-Business Suite Financials Handbook, Third Edition in print and ebook format. CRC Press - Has added 3 NEW titles!  Get 20% off the below title at checkout. Secure Java: For Web Application Development Open Source Data Warehousing and Business Intelligence Developing Essbase Applications: Advanced Techniques for Finance and IT Professional Oracle Embedded Programming and Application Development Packt Publishing - Get 25% off the print books and get 35% off the eBooks listed below. You will need to be logged in for the discounts to apply at checkout and codes expire December 31st 2012. Getting Started with Oracle Data Integrator 11g: A Hands-On Tutorial Oracle Business Intelligence Enterprise Edition 11g: A Hands-On Tutorial Oracle Certified Associate, Java SE 7 Programmer Study Guide Safari Online-  Give the Gift of Knowledge This Holiday SeasonGive your friends and colleagues the gift of Safari Books Online! With an ever-expanding library of books and videos from more than 100 publishers (including Oracle Press), a subscription to Safari Books Online is the gift that always fits, helping your friends learn new skills and stay current. Starting at $42.99, gift subscriptions are available for 1, 3, 6 and 12 months. Get all of this and more at the Oracle Technology Network Member Discount Page!

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• Help getting iPython to run from the OSX terminal.

  - by Azfar

  Hi there, Got a heads up from stackoverflow.com to ask the question here. I'm going through the matplotlib documentation and prepared to use the iPython interactive Python shell with ipython -pylab. However I get this: MBP:~ Me$ ipython -pylab -bash: ipython: command not found Did I fail to install iPython? I used easy_install as advised. Any ideas? Update Thought I'd just say that I found the iPython "executable" in /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin after doing a Spotlight search. Still a little confused as to what to do.

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• Am I an idealist?

  - by ereOn

  This is not only a question, this is also a call for help. Since I started my career as a programmer, I always tried to learn from my mistakes. I worked hard to learn best-practices and while I don't consider myself a C++ expert, I still believe I'm not a beginner either. I was recently hired into a company for C++ development. There I was told that my way to work was "against the rules" and that I would have to change my mind. Here are the topics I disagree with my hierarchy (their words): "You should not use separate header files for your different classes. One big header file is both easier to read and faster to compile." "Trying to use different headers is counter-productive : use the same super-set of headers everywhere, and enforce the use #pragma hdrstop to hasten compilation" "You may not use Boost or any other library that uses nested directories to organize its files. Our build-machine doesn't work with nested directories. Moreover, you don't need Boost to create great software." One might think I'm somehow exaggerated things, but the sad truth is that I didn't. That's their actual words. I believe that having separate files enhance maintainability and code-correctness and can fasten compilation time by the use of the proper includes. Have you been in a similar situation? What should I do? I feel like it's actually impossible for me to work that way and day after day, my frustration grows.

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• BusEnum2 and a Minor Bug Fix

  - by Kate Moss' Open Space

  The default root bus driver, BusEnum, enumerate and active drivers one by one in synchronized manner. It is not only slowing the boot time but in the even if any of driver's init function (XXX_init) get hanged, the whole system won't boot at all. There is a sample of enhanced root bus driver, BusEnum2, on the http://msdn.microsoft.com/en-us/library/dd187254.aspx The page provides the sample code and the detail explanation of the design concept. With multi-threaded BusEnum2 on CE7 with SMP enabled system, the scalability is even more significant. Since you have more than one processor and it can load drivers in parallel! Everything looks good so far, except to there is a small bug in the sample code. Fortunately, it is easy to fix. But hard to trace if you ever enc outer it! The BUSENUM2 flag only defined in BUSENUM2\BUSDEF\sources but not in BUSENUM2\BUSENUM\sources. The DeviceFolder is implemented in BUSENUM2\BUSDEF but the instance is created in BUSENUM2\BUSENUM\busenum.cpp, so the result is it allocates less memory than actual need.   Add   CDEFINES=$(CDEFINES) -DBUSENUM2   into BUSENUM2\BUSENUM\sources and the problem fixed!

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• How should I architect a personal schedule manager that runs 24/7?

  - by Crawford Comeaux

  I've developed an ADHD management system for myself that's attempting to change multiple habits at once. I know this is counter to conventional wisdom, but I've tried the conventional for years & am now trying it my way. (just wanted to say that to try and prevent it from distracting people from the actual question) Anyway, I'd like to write something to run on a remote server that monitors me, helps me build/avoid certain habits, etc. What this amounts to is a system that: runs 24/7 may have multiple independent tasks to run at once may have tasks that require other tasks to run first lets tasks be scheduled by specific time, recurrence (ie. "run every 5 mins"), or interval (ie. "run from 2pm to 3pm") My first naive attempt at this was just a single PHP script scheduled to run every minute by cron (language was chosen in order to use a certain library, but no longer necessary). The logic behind when to run this or that portion of code got hairy pretty quick. So my question is how should I approach this from here? I'm not tied to any one language, though I'm partial to python/javascript. Thoughts: Could be done as a set of scripts that include a scheduling mechanism with one script per bit of logic...but the idea just feels wrong to me. Building it as a daemon could be helpful, but still unsure what to do about dozens of if-else statements for detecting the current time

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• CodePlex Daily Summary for Saturday, July 20, 2013

  CodePlex Daily Summary for Saturday, July 20, 2013Popular ReleasesC# Intellisense for Notepad++: Initial release: Members auto-complete Integration with native Notepad++ Auto-Completion Auto "open bracket" for methods Right-arrow to accept suggestions51Degrees.mobi - Mobile Device Detection and Redirection: 2.1.19.4: One Click Install from NuGet This release introduces the 51Degrees.mobi IIS Vary Header Fix. When Compression and Caching is used in IIS, the Vary header is overwritten, making intelligent caching with dynamic content impossible. Find out more about installing the Vary Header fix. Changes to Version 2.1.19.4Handlers now have a ‘Count’ property. This is an integer value that shows how many devices in the dataset that use that handler. Provider.cs -> GetDeviceInfoByID to address a problem w...SalarDbCodeGenerator: SalarDbCodeGenerator v2.1.2013.0719: Version 2.1.2013.0719 2013/7/19 Pattern Changes: * DapperContext pattern is added. * All patterns are updated to work with one-to-one relations. Changes: * One-to-one relation is supported. * Minor bug fixes.Player Framework by Microsoft: Player Framework for Windows and WP (v1.3 beta 2): Includes all changes in v1.3 beta 1 Additional support for Windows 8.1 Preview New API (JS): addTextTrack New API (JS): msKeys New API (JS): msPlayToPreferredSourceUri New API (JS): msSetMediaKeys New API (JS): onmsneedkey New API (Xaml): SetMediaStreamSource method New API (Xaml): Stretch property New API (Xaml): StretchChanged event New API (Xaml): AreTransportControlsEnabled property New API (Xaml): IsFullWindow property New API (Xaml): PlayToPreferredSourceUri proper...Outlook 2013 Add-In: Multiple Calendars: As per popular request, this new version includes: - Support for multiple calendars. This can be enabled in the configuration by choosing which ones to show/hide appointments from. In some cases (public folders) it may time out and crash, and so far it only supports "My Calendars", so not shared ones yet. Also they're currently shown in the same font/color so there are no confusions with color categories, but please drop me a line on any suggestions you'd like to see implemented. - Added fri...Circuit Diagram: Circuit Diagram 2.0 Beta 2: New in this release: Show grid in editor Cut/copy/paste support Bug fixesCommunity TFS Build Extensions: July 2013: The July 2013 release contains VS2010 Activities(target .NET 4.0) VS2012 Activities (target .NET 4.5) VS2013 Activities (target .NET 4.5.1) Community TFS Build Manager VS2012 The Community TFS Build Manager can also be found in the Visual Studio Gallery here where updates will first become available. A version supporting VS2010 is also available in the Gallery here.DaRenamer: Renamer 2.1.0.5: Version 2.1.0.5 -fixed minor bugInstall Verify Tool: Install Verify Tool V 1.0: Win Service Web Service Win Service Client Web Service ClientOrchard Project: Orchard 1.7 RC: Planning releasedTerminals: Version 3.1 - Release: Changes since version 3.0:15992 Unified usage of icons in user interface Added context menu in Organize favorites grid Fixed:34219 34210 34223 33981 34209 Install notes:No changes in database (use database from release 3.0) No upgrade of configuration, passwords, credentials or favorites See also upgrade notes for release 3.0PMU Connection Tester: PMU Connection Tester v4.4.0: This is the current release build of the PMU Connection Tester, version 4.4.0 This version of the connection tester was released with openPDC 1.5 SP1 and openPDC 2.0 BETA. This application requires that .NET 4.0 already be installed on your system. Note this is the last release of the PMU Connection Tester that will built on .NET 4.0 using the TVA Code Library and the Time-series Framework. Future releases of the PMU Connection Tester will be built on .NET 4.5 (or later) using the Grid Sol...HiUpdateTools - easy publish and update your app: HiUpdateTools Add-in 1.0.0.5: - Generate ClientConfig.xml and adding to the project - Set ClientConfig.xml option "CopyToOutputDirectory"= Copy if newer - Fix client path not ending the backslash - Add Client assembly to VSX package - On first use, the tool is added to the reference to the client assembly - Fix client application - Multi-instance application - Run single instance of update applicationopen gaze and mouse analyzer: Ogama 4.4 BETA: This beta was published on 16.07.2013 and includes fixes and improvements since last 4.3 release, mainly in the recording section which solves problems with tobii and mirametrix devices, see the source code tab for details. Please test it, if you have one of this devices and give me feedback using the issue tracker or discussion tabs. Don´t forget to install .Net 4 framework and SQL Express before installing Ogama. When using Tobii tracking devices, you have to install apple bonjour also. On...SpaceFlight: SpaceFlight_v1.1: Added VCRedist.exe , run this first if you get the "MSVCP100.dll is missing" issueAdvanced Resource Tab for Blend: Advanced Resource Tab 2.0: Added filtering of (sub)-resource items and collapsing / expanding of all resource dictionaries.Media Companion: Media Companion MC3.573b: XBMC Link - Let MC update your XBMC Library Fixes in place, Enjoy the XBMC Link function Well, Phil's been busy in the background, and come up with a Great new feature for Media Companion. Currently only implemented for movies. Once we're happy that's working with no issues, we'll extend the functionality to include TV shows. All the help for this is build into the application. Go to General Preferences - XBMC Link for details. Help us make it better* Currently only tested on local and ...Wsus Package Publisher: Release v1.2.1307.15: Fix a bug where WPP crash if 'ShowPendingUpdates' is start with wrong credentials. Fix a bug where WPP crash if ArrivalDateAfter and ArrivalDateBefore is equal in the ComputerView. Add a filter in the ComputerView. (Thanks to NorbertFe for this feature request) Add an option, when right-clicking on a computer, you can ask for display the current logon user of the remote computer. Add an option in settings to choose if WPP ping remote computers using IPv4, IPv6 or IPv6 and, if fail, IP...Lab Of Things: vBeta1: Initial release of LoTVidCoder: 1.4.23: New in 1.4.23 Added French translation. Fixed non-x264 video encoders not sticking in video tab. New in 1.4 Updated HandBrake core to 0.9.9 Blu-ray subtitle (PGS) support Additional framerates: 30, 50, 59.94, 60 Additional sample rates: 8, 11.025, 12 and 16 kHz Additional higher bitrates for audio Same as Source Constant Framerate 24-bit FLAC encoding Added Windows Phone 8 and Apple TV 3 presets Introduced process isolation for encodes. Now if HandBrake crashes, VidCoder will ...New ProjectsAIDE (Automata-Identification Engine): AIDE is a automata-identification engine.CalligraphyMVVM: MVVM Calligraphy Windows Phone, Web ASP.NET MVCCentrify DirectControl PowerShell Module: The Centrify DirectControl PowerShell Module is based on Centrify API to give management control on Centrify data store into Active Directory.Cleveland Free Clinic: Cleveland Free Clinicfacebook???????????: facebook????????????????????Functional Reach: A Microsoft Kinect activity that using skeletal tracking to run a randomized stretching activity for patients that have prescribed home exercises for stroke.HR Project: This is a HR Project for Place company.OfflineBrowser: Offline browser for jw.org.ricerca-docs: Sphinx documentation for ricerca.Sample EventAgregator: Sample EventAgregator This is an example of using EventAgregator on WinRT / Windows 8 with the C # programming language. EventAgregator itself is part of PrismSMSGateWay: CMPP,SGIP,SMGP ????SP?? ??,????,?????,???. ??????,????,?????,????......?????,????? ????SPID ,MsgSrc,???,???IP,?????? ?????,?????,??,????vimrc file: vimrc file

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• Increase the compression performance of VPN

  - by Martin

  I am currently switching from a system with HPN-SSH tunnels and enabled compression to something VPN based. I have tried tinc and n2n so far, hamachi requires a library I do not have. In my primitive benchmarks I am not satisfied with the achievable bandwidth compared to the SSH tunnels. In tinc the low LZO setting performed best, but compression is only available in UDP mode. Ideally I would like to have a TCP-based VPN with a multi-threaded compression. Can you suggest me some ideas how to increase the performance? Would it be possible to somehow put a compression filter in front of the tun interface? Or are there any VPN implementations that might be better suited for my needs (fast compression, TCP-based, switch mode, does not have to be super-secure)? I would consider tunnelling Ethernet over SSH, but according to some articles it is not advisable.

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• Basic AppFabric Service Bus Programming Lifecycle

  - by kaleidoscope

  The tasks required to create an application that access the AppFabric Service Bus are as follows: Create a service namespace. This service namespace contains the resources used by the AppFabric Service Bus to support the application. Define the AppFabric Service Bus contract. A contract specifies the signature of the service, the data it exchanges, and other required inputs, behavior specifications, and object invariants. Implement the contract. To implement a service contract, create a class that implements the interface and specify custom runtime behaviors. Configure the service by specifying endpoint and other behavior information. Build and run the service. Build and run the client application. As with any iterative, service-oriented software development, it may not always be appropriate to follow the preceding steps sequentially, or even start from step 1. For example, if you want to build a client for a pre-existing service, you start at step 5. Or, if you are building a host service that others will use, you can skip step 6. Source: http://msdn.microsoft.com/en-us/library/ee173580.aspx   Sarang, K

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• Languages on a resume: Is it better to put "C/C++" or "C, C++"?

  - by Kevin

  I'm graduating in a couple of weeks, and my resume (as expected) lists the languages that I've had experience with. Previously I've put "C/C++", however back then I didn't have that much experience with these two languages as I do now. Now that I've formally learned these two languages, it has become evident to me (and anyone who really knows these languages) that they are similar, and completely disimilar at the same time. Sure, most C code is compilable C++ code, but syntax and incorporation of library functions is pretty much where these similarities end. In most non-trivial problems, chances are that the desirable C++ solution will be different from the desirable C solution. My question: Will recruiters take note or care about whether you put "C/C++" as opposed to "C, C++"? Will they assume a lack of knowledge of the workings of either because of the inclusion of the first form, or perhaps see the inclusion of the second form as a potential "resume beefer" (listing them as 2 languages, instead of "one")? Furthermore, for jobs that you've applied to that were particularly interested in these two langauges, did the interview process include questions about the differences between C programming and C++ programming (so, about actual programming techniques, not only the extra paradigms in the latter)?

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• Best approach to depth streaming via existing codec

  - by Kevin

  I'm working on a development system (and game) intended for games set mostly in static third-person views. We produce our scenery by CG and photographic techniques. Our background art is rendered off-line by a production-grade renderer. To allow the runtime imagery to properly interact with the background art, I wrote a program to convert from depth output by Mental Ray into a texture, and a pixel shader to draw a quad such that the Z data comes from the texture. This technique is working out very well, but now we've decided that some of the camera angle changes between scenes should be animated. The animation itself is straightforward to produce from our CG models. We intend to encode it to some HD video codec such as H.264. The problem is that in order to maintain our runtime imagery on the screen, the depth buffer will need to be loaded for each video frame. Due to the bandwidth, the video's depth data will need to be compressed efficiently. I've looked into methods for performing temporal compression of depth info and found an interesting research paper here: http://web4.cs.ucl.ac.uk/staff/j.kautz/publications/depth-streaming.pdf The method establishes a mapping between 16-bit depth values and YCbCr values. The mapping is tuned to the properties of existing video codecs in order to maximize precision of the decoded depths after the YCbCr has undergone video compression. It allows an existing, unmodified video codec to be used on the backend. I'm looking at how to pull this off with the least possible work. (This design change was unplanned.) Our game engine itself is native C++, presently for Win32 and DirectX, although we've worked hard to keep platform dependence segregated because we intend other ports. We don't have motion video facilities in the engine yet but will ultimately need that anyway for cinematics. I was planning on using some off-the-shelf motion video solution we can plug into our engine, and haven't chosen one yet. This new added requirement makes selecting one harder since, among other things, we'll now need to bypass colourspace conversion on one of the streams, and also will need to be playing two streams simultaneously in lockstep, on top of in some cases audio on one of them (for the cinematics). I'm also wondering if it's possible (or even useful) to do the conversion from YCbCr to depth in a pixel shader, or if it's better to just do it in CPU and separately load the resulting depth values into a locked tex. The conversion unfortunately does involve branching logic per-pixel. (There are more naive mappings that don't need branching, but they produce inferior results.) It could be reduced to a table lookup but the table would be 32MB. Programming is second-nature to me but I'm not that experienced with pix shaders and have zero knowledge of off-the-shelf video solutions. I'd therefore be interested in advice from others who may have dealt more with depth streaming, pixel shaders, and/or off-the-shelf codecs, regarding how feasible the proposed application is and what off-the-shelf video systems out there would best get along with this usage case.

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• Transition from 2D to 3D Game development [closed]

  - by jakebird451

  I have been working in the 2D world for a long time from manual blitting in windows to SDL to Python (pygame, pyopengl) and a bunch in between. Needless to say I have been programming for a while. So a while ago I started to program in OpenGL via C++ on my Mac. I then got a little intricate with my work after a while (3D models with skeleton structure and terrain development). After a long time of tinkering, I stopped due to the heavy work just to yield a low level understanding of how OpenGL works. Still interested in Graphics and Game Development I went on a search for a stable game engine with some features to grow on. Licence Requirement: Anything other than GPL (LGPL will do) OS Requirement: Mac & Windows Shader: GLSL or CG (GLSL preferred due to experience) Models: Any model structure with rigging (bone) support & animation I am looking at http://www.ogre3d.org/ currently and am starting to meddle around with some examples. However I am a little reluctant to spend a lot of time on it only to yield another dead end. So instead of falling down a spiraling black pit, I am posting my question to you guys to lead me in the right direction based on my requirements. How was your experience with the engine you recommend? Is it well documented? Does it have well documented examples? Any library requirements (Boost, libpng, etc)?

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• Connecting to local Sql server 2005 through Internet

  - by Manish

  Hello My Sql server is on Local Machine, I want to access it through Internet. I Configure Surace manager and Configuration manager of sqlserver 2005 for remote access. My sqlserver is running on port:1433 I am using port forwarding , I can access service of other ports, My Connetion String Is: Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword; But it gives following error when i am trying to connect sql server through internet: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)

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• Getting iTunes to play third party AAC files

  - by Redmastif

  I have a library filled with some old MP3 files and I'm in the process of changing them all to AAC for the better sound quality. Obviously I can't just create AAC versions of the files I already have because they would sound worse (lossy compression to converted to more lossy compression), so I'm going to their source and downloading them in a lossless form and using a third party to make them into AAC. Apparently iTunes will not handle AAC files that aren't made with iTunes. Is there a way around this? I've looked at third party programs and would be willing to use them, but since they all require the iTunes/iPod/iEverything driver, I don't know if they would still prevent my files or not. Also before you jump on my back about pirating, these files are from old CDs that I lost years ago. I paid for them. Thanks.

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• Empty track in Windows Media Player 12 that can't be deleted

  - by David Brown

  Right after I installed a fresh copy of Windows 7, I synced with my DropBox account that contains all of my music and added the directory to Windows Media Player 12. I now have a strange track that really isn't a track at all. It's grouped under "Unknown Artist" and has absolutely no text. The only reason I know it's there is because it highlights on mouse-over. Double-clicking on it does nothing. When the song before it ends, Windows Media Player stops playing altogether until I choose a different song (it should continue to play the next song on its own). When I try to delete this mysterious track, nothing happens. I've cleared my library and re-imported everything, but this empty track keeps appearing. I have also checked my Music directory and there is no empty MP3. What is going on here?

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• Can't play Steel Storm, Burning Retribution

  - by Goytor

  I've bougth Steel Storm, Burning Retribution in the Software Center, and every time I run it shows the following message: You have reached this menu due to missing or unlocable content/data You may consider adding -base dir /path/to/game to your launch commandline I've gone to main menu in the preferences tab and changed the launcher to no avail. I've tried running it from console, with /opt/steelstorm-episode2/steelstorm, I got: Game is Steel-Storm using base gamedir gamedata Steel-Storm Linux 01:07:07 Jun 11 2011 - release Playing shareware version. Skeletal animation uses SSE code path DPSOFTRAST available (SSE2 instructions detected) Failed to init SDL joystick subsystem: couldn't exec quake.rc couldn't exec default.cfg execing config.cfg couldn't exec autoexec.cfg Client using an automatically assigned port Client opened a socket on address 0.0.0.0:0 Client opened a socket on address [0:0:0:0:0:0:0:0]:0 Linked against SDL version 1.2.12 Using SDL library version 1.2.14 GL_VENDOR: NVIDIA Corporation GL_RENDERER: GeForce 6150SE nForce 430/PCI/SSE2/3DNOW! GL_VERSION: 2.1.2 NVIDIA 270.41.06 vid.support.arb_multisample 1 vid.mode.samples 0 vid.support.gl20shaders 1 Video Mode: fullscreen 640x480x32x0.00hz S_Startup: initializing sound output format: 48000Hz, 16 bit, 2 channels... Wanted audio Specification: Channels : 2 Format : 0x8010 Frequency : 48000 Samples : 2048 Obtained audio specification: Channels : 2 Format : 0x8010 Frequency : 48000 Samples : 1024 Sound format: 48000Hz, 2 channels, 16 bits per sample CDAudio_Init: No CD in player. Can't get initial CD volume CD Audio Initialized If I try -base /opt/steelstorm-episode2/steelstorm says "command not found".

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