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  • Unable to log into Ubuntu

    - by Rodnower
    I have Ubuntu 12.04.1. Last time I did nothing especial, but suddenly some problem appear: I have a login screen (using lightdm), when I attempt a login, I get a console session and returned to the login screen. I see that it is a known issue, so I tried everything from following steps: To removed .XAuthority Configure to use gdm Reinstall lightdm To include my user to nopasswdlogin group But nothing help... So, these are errors from /var/log/auth.log: Oct 3 01:11:48 alphabet-2 lightdm: pam_unix(lightdm:session): session opened for user lightdm by (uid=0) Oct 3 01:11:48 alphabet-2 lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :0 Oct 3 01:11:48 alphabet-2 lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "andrey" Oct 3 01:11:48 alphabet-2 dbus[704]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.35" (uid=104 pid=1709 comm="/usr/lib/indicator-datetime/indicator-datetime-ser") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.14" (uid=0 pid=1169 comm="/usr/sbin/console-kit-daemon --no-daemon ") Any ideas?

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  • CodePlex Daily Summary for Tuesday, May 29, 2012

    CodePlex Daily Summary for Tuesday, May 29, 2012Popular ReleasesDotNetNuke Azure Accelerator: DotNetNuke Azure Accelerator 6.2: Windows Azure deployments of DotNetNuke Community using virtual hard drive (cloud-drive) image that is created dynamically on the cloud. Enables the creation of new DotNetNuke host instances from on-premise to the cloud using a wizard that guides you on this process, creating the SQL Azure database, uploading the solution engine and associated service configurations. New features in this releaseModified the web roles endpoints to allow traffic on port 443 Changed the package unzip operati...Thales Simulator Library: Version 0.9.6: The Thales Simulator Library is an implementation of a software emulation of the Thales (formerly Zaxus & Racal) Hardware Security Module cryptographic device. This release fixes a problem with the FK command and a bug in the implementation of PIN block 05 format deconstruction. A new 0.9.6.Binaries file has been posted. This includes executable programs without an installer, including the GUI and console simulators, the key manager and the PVV clashing demo. Please note that you will need ...myManga: myManga v1.0.0.2: Fixed the 'Lost+Brain' error on MangaReader. The main download has this update. The second download is for those who have already downloaded the old v1.0.0.2. DELETE OLD EXE and DLLs before you copy the new files over.To update from v1.0.0.1:Extract new myManga EXE and DLLs from Zip to folder of choosing. Copy MangaInfo and MangaArchives folder from old myManga folder to new folder from step 1. ORDelete: The new myManga.exe contains the CoreMangaClasses.dll and Manga.dll internally. Delet...????: ????2.0.1: 1、?????。WiX Toolset: WiX v3.6 RC: WiX v3.6 RC (3.6.2928.0) provides feature complete Burn with VS11 support. For more information see Rob's blog post about the release: http://robmensching.com/blog/posts/2012/5/28/WiX-v3.6-Release-Candidate-availableJavascript .NET: Javascript .NET v0.7: SetParameter() reverts to its old behaviour of allowing JavaScript code to add new properties to wrapped C# objects. The behavior added briefly in 0.6 (throws an exception) can be had via the new SetParameterOptions.RejectUnknownProperties. TerminateExecution now uses its isolate to terminate the correct context automatically. Added support for converting all C# integral types, decimal and enums to JavaScript numbers. (Previously only the common types were handled properly.) Bug fixe...Indent Guides for Visual Studio: Indent Guides v12: Version History Changed in v12: background document analysis new options dialog with Quick Set selections for behavior new "glow" style for guides new menu icon in VS 11 preview control now uses editor theming highlighting can be customised on each line fixed issues with collapsed code blocks improved behaviour around left-aligned pragma/preprocessor commands (C#/C++) new settings for controlling guides in empty lines restructured settings storage (should be more reliable) ...callisto: callisto 2.0.29: Added DNS functionality to scripting. See documentation section for details of how to incorporate this into your scripts.ZXMAK2: Version 2.6.2.2: - implemented read port #7FFD glitch for ULA128 (fusetest) - fix unhandled exception inside open dialog - fix Z80 format serializer (support 55 bytes header & non compressed 128 blocks - thanks to Ralf) This release include SPRINTER emulation, but boot system disk image was removed.Phalanger - The PHP Language Compiler for the .NET Framework: 3.0 (May 2012): Fixes: unserialize() of negative float numbers fix pcre possesive quantifiers and character class containing ()[] array deserilization when the array contains a reference to ISerializable parsing lambda function fix round() reimplemented as it is in PHP to avoid .NET rounding errors filesize bypass for FileInfo.Length bug in Mono New features: Time zones reimplemented, uses Windows/Linux databaseSharePoint Euro 2012 - UEFA European Football Predictor: havivi.euro2012.wsp (1.1): New fetures:Admin enable / disable match Hide/Show Euro 2012 SharePoint lists (3 lists) Installing SharePoint Euro 2012 PredictorSharePoint Euro 2012 Predictor has been developed as a SharePoint Sandbox solution to support SharePoint Online (Office 365) Download the solution havivi.euro2012.wsp from the download page: Downloads Upload this solution to your Site Collection via the solutions area. Click on Activate to make the web parts in the solution available for use in the Site C...ScreenShot: InstallScreenShot: This is the current stable release.????SDK for .Net 4.0+(OAuth2.0+??V2?API): ??V2?SDK???: ????SDK for .Net 4.X???????PHP?SDK???OAuth??API???Client???。 ??????API?? ???????OAuth2.0???? ???:????????,DEMO??AppKey????????????????,?????AppKey,????AppKey???????????,?????“????>????>????>??????”.Net Code Samples: Code Samples: Code samples (SLNs).LINQ_Koans: LinqKoans v.02: Cleaned up a bitExpression Tree Visualizer for VS 2010: Expression Tree Visualizer Beta: This is a beta release, in this release some expression types are not handled and use a default visualization behavior. The first release will be published soon. Wait for it...Ulfi: Ulfi source: Build with Visual Studio 2010 Express C# or betterJayData - The cross-platform HTML5 data-management library for JavaScript: JayData 1.0 RC1 Refresh 2: JayData is a unified data access library for JavaScript developers to query and update data from different sources like webSQL, indexedDB, OData, Facebook or YQL. See it in action in this 6 minutes video: http://www.youtube.com/watch?v=LlJHgj1y0CU RC1 R2 Release highlights Knockout.js integrationUsing the Knockout.js module, your UI can be automatically refreshed when the data model changes, so you can develop the front-end of your data manager app even faster. Querying 1:N relations in W...Christoc's DotNetNuke Module Development Template: 00.00.08 for DNN6: BEFORE USE YOU need to install the MSBuild Community Tasks available from http://msbuildtasks.tigris.org For best results you should configure your development environment as described in this blog post Then read this latest blog post about customizing and using these custom templates. Installation is simple To use this template place the ZIP (not extracted) file in your My Documents\Visual Studio 2010\Templates\ProjectTemplates\Visual C#\Web OR for VB My Documents\Visual Studio 2010\Te...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.53: fix issue #18106, where member operators on numeric literals caused the member part to be duplicated when not minifying numeric literals ADD NEW FEATURE: ability to create source map files! The first mapfile format to be supported is the Script# format. Use the new -map filename switch to create map files when building your sources.New ProjectsActive Log Reader: The active log reader provides the ability for a client to subscribe to specific changes in a set of files in a directory. For example, it allows you to actively monitor all .log files in your C:\Windows directory (and sub-directories) and callback whenever the word "ERROR" shows up (or any regular expression you can come up with). The accompanying test project outlines example usage.ADO.NET light wrapper: ADO.NET light wrapper is thin IEnumerable layer about ADO.NET for provide easy way to access data with strong typing support. Allen Neighborhood Center: Allen Neighborhood Center data interactionsCildads: The first attempt at centryCMT: Course Management Tool ProjectCode Builder: this is the Builder project.Connect: this is the Connect project.Craig's Framework: A basic framework that is used to speed up building MVC applications and make certain things simpler.CRM 2011 Fetch XML Execute Tool: This is a dev tool used to execute fetch xml to get the results from the connected CRM 2011 instanceDallasDB: A struct based database. DallasDB will have no full functionality until at least version 0.0.1, and won't be ready for professional use until version 1.0.0. EasyMvc: It provides a trainning sample to develop a web application base on MVC3 EF4.0 SQL Compact 4. Besides, a common business permission, logging, configration have been applied simply. Share with some implement idea about web, mvc, jquery,orm. Appreciate your advice.Entity: this is the Entity project.FogLampz: FogLampz is a .NET wrapper around around the FogBugz API.Geeba: Geeba Forum for Students in BGU UniversityHibernate: this is the Hibernate project.JSense - IntelliSense for JavaScript: JSense provides JavaScript IntelliSense meta-automation for Visual Studio 2010 projectsMichael: this is Michael's project.ModAdder: Minecraft Mod InstallerMVVM ORM: The purpose of MVVM ORM is to create models and their interactions as defined in some database for WPF applications Models are derived from tables, views and stored procedures. Interactions include insert/update/delete, with FK relationships taken into account. nihao: The summary is required.Report: this is the Report project.REST Start Kit for BizTalk: This project enables BizTalk Server to expose RESTFul services through the WCF-Custom adapter. The library supports both receive and send, both XML and JSON with all HTTP verbs (GET, POST, PUT and DELETE). The solution is based on two custom WCF behaviors, one to be used on Receive Locations and one on Send Ports. Hopeully you'll find them easy to use, but if you have any issues, please use the discussions forum.RovignetaWinPhone7: bla bla blaScreenShot: A simple utility that enhances the experience of taking screenshots and annotating them. And all of it happens with the screenshot key that you are most used to. PrintScreen. Give it a try. You will forget the traditional tedious screenshot mechanism.SDM Exam 2012: This is an exam project for 4th semester.Struts: this is the Struts project.TheStoreDepot: depot for the StoreTibiaBot: TibiaBot is an open source application dedicated to extend your gaming experience in MMORPG game called Tibia. Besides of very many built-in functions, TibiaBot has implemented IronRuby script engine, which allows You to creating new functionality to base program.TopicInterDisciplinary: Topic inter-disciplinary owner: sherry, chen1984yangWebAppMatrix: ??WebApp??,?????!

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  • Running django custom management commands with supervisord

    - by mfsaint
    I'd like to use supervisord to run some commands for my Django project but I keep getting the following error: supervisor.log: 2012-05-18 17:52:15,784 INFO spawnerr: can't find command 'source' If I remove the "source" command, the log shows the same error: can't find command 'python'. supervisord.conf excerpt: [program:django] directory=/home/mf/projects/djangopj/ command=beanstalkd -l 127.0.0.1 -p 11300 command=source /home/mf/virtualenvs/env/bin/activate command=python manage.py command1 command=python manage.py command2 user=mf autostart=true autorestart=true I tried removing the directory and adding the absolute path to the commands but I kept getting the same error. I run supervisord with the following command: supervisord -c supervisord.conf -l supervisor.log

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  • EclipseCon 2011

    - by Marcus Hirt
    I sadly could not make it to EclipseCon last year. It was sad for so many reasons, not the least being that Sweden during that part of the year is cold and dark. ;) This year, however, I will be contributing two talks: ---> HotRockit – What to Expect from Oracle’s Converged JVM Oracle is converging the HotSpot and JRockit JVMs to produce a "best of breed JVM". Internally the project is sometimes referred to as the HotRockit project. There is already a large influx of ideas and solutions provided by the JRockit JVM into the Open JDK. Examples of improvements include: Better monitoring and profiling Improved performance Better ergonomics This talk will discuss what to expect from the converged JVM over the next two years, and how this will benefit the Eclipse community. Production-time Problem Solving in Eclipse This session will look at some common problems and pitfalls in Java applications. The focus will be on non-invasive profiling and diagnostics of running production systems. Problems tackled will be: Excessive GC Finding hotspots and optimizing them Optimizing the choice of data structures Synchronization problems Finding out where exceptions are thrown Finding memory leaks All problems will be demonstrated and solved running both the bad-behaving applications and the tools to analyze them from within the Eclipse Java IDE. <--- I hope to meet you there!

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  • Sharing an Apache configuration between testing vs. production

    - by Kevin Reid
    I have a personal web site with a slightly nontrivial Apache configuration. I test changes on my personal machine before uploading them to the server. The path to the files on disk and the root URL of the site are of course different between the test and production conditions, and they occur many places in the configuration (especially <Directory blocks for special locations which have scripts or no directory listing or ...). What is the best way to share the common elements of the configuration, to make sure that my production environment matches my test environment as closely as possible? What I've thought of is to use SetEnv to store the paths for the current machine in environment variables, then Include a common configuration file with ${} everywhere there's something machine specific. Any hazards of this method?

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  • Cannot set MemOpMode or ProcVirtualization with syscfg.exe

    - by EGr
    When attempting to set MemOpMode or ProcVirtualization with syscfg.exe, I get the following error: C:\Users\EGr>syscfg --MemOpMode=AdvEccMode System Services or CSIOR disabled In the past, I have been told that this can be resolved by forcefully reinstalling the Dell Lifecycle controller firmware, and then trying again; however, I cannot find my notes on how to do that. Has anyone ever run into this issue, and does anyone know how I can fix it? If it is possible to forcefully reinstall the firmware, how would I do that? I've tried running the installer, but it fails after running for ~2 min. I believe there is a way to fix this as well, by adding/modifying a registry value at HKLM\System\Control\CurrentControlSet\Services\IPMIDRV (that might not be the correct path, but I know it is IPMIDRV). Is this a common issue? What is the actual cause of it?

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  • CodePlex Daily Summary for Saturday, December 15, 2012

    CodePlex Daily Summary for Saturday, December 15, 2012Popular ReleasesAmarok Framework Library: 1.12: refactored agent-specific implementation introduced new interface representing important concepts like IDispatcher, IPublisher Refer to the Release Notes for details.sb0t v.5: sb0t 5.02b beta 2: Bug fix for Windows XP users (tab resize) Bug fix where ib0t stopped working A lot of command tweaksCRM 2011 Visual Ribbon Editor: Visual Ribbon Editor (1.3.1116.8): [FIX] Fixed issue not displaying CRM system button images correctly (incorrect path in file VisualRibbonEditor.exe.config)MySqlBackup.NET - MySQL Backup Solution for C#, VB.NET, ASP.NET: MySqlBackup.NET 1.5.6 beta: Fix Bug: If encryption is applied in Export Process, the generated encrypted SQL file is not able to import Stored Procedures, Functions, Triggers, Events and View. Fix Bug: In some unknown cases, the SHOW CREATE TABLE `tablename` query will return byte array. Improve 1: During Export, StreamWriter is opened and closed several times when writting to the dump file, which this is considered as not a good practice. Improve 2: SQL line in class Database method GetEvents: "SHOW EVENTS WHERE ...My Expenses Windows Store LOB App Demo: My Expenses Version 1: This is version 1 of the MyExpenses Windows 8 line of business demo app. The app is written in XAML and C#. It calls a WCF service that works with a SQL Server database. The app uses the Callisto toolkit. You can get it at https://github.com/timheuer/callisto. The Expenses.sql file contains the SQL to create the Expenses database. The ExpensesWCFService.zip file contains the WCF service, also written in C#. You should create a WCF service. Create an Entity Framework model and point it to...EasyTwitter: EasyTwitter basic operations: See the commit log to see the features!, check history files to see examples of how to use this libraryCommand Line Parser Library: 1.9.3.31 rc0: Main assembly CommandLine.dll signed. Removed old commented code. Added missing XML documentation comments. Two (very) minor code refactoring changes.BlackJumboDog: Ver5.7.4: 2012.12.13 Ver5.7.4 (1)Web???????、???????????????????????????????????????????VFPX: ssClasses A1.0: My initial release. See https://vfpx.codeplex.com/wikipage?title=ssClasses&referringTitle=Home for a brief description of what is inside this releaseHome Access Plus+: v8.6: v8.6.1213.1220 Added: Group look up to the visible property of the Booking System Fixed: Switched to using the outlook/exchange thumbnailPhoto instead of jpegPhoto Added: Add a blank paragraph below the tiles. This means that the browser displays a vertical scroller when resizing the window. Previously it was possible for the bottom edge of a tile not to be visible if the browser window was resized. Added: Booking System: Only Display Day+Month on the booking Home Page. This allows for the cs...Layered Architecture Solution Guidance (LASG): LASG 1.0.0.8 for Visual Studio 2012: PRE-REQUISITES Open GAX (Please install Oct 4, 2012 version) Microsoft® System CLR Types for Microsoft® SQL Server® 2012 Microsoft® SQL Server® 2012 Shared Management Objects Microsoft Enterprise Library 5.0 (for the generated code) Windows Azure SDK (for layered cloud applications) Silverlight 5 SDK (for Silverlight applications) THE RELEASE This release only works on Visual Studio 2012. Known Issue If you choose the Database project, the solution unfolding time will be slow....Fiskalizacija za developere: FiskalizacijaDev 2.0: Prva prava produkcijska verzija - Zakon je tu, ova je verzija uskladena sa trenutno važecom Tehnickom specifikacijom (v1.2. od 04.12.2012.) i spremna je za produkcijsko korištenje. Verzije iza ove ce ovisiti o naknadnim izmjenama Zakona i/ili Tehnicke specifikacije, odnosno, o eventualnim greškama u radu/zahtjevima community-a za novim feature-ima. Novosti u v2.0 su: - That assembly does not allow partially trusted callers (http://fiskalizacija.codeplex.com/workitem/699) - scheme IznosType...Simple Injector: Simple Injector v1.6.1: This patch release fixes a bug in the integration libraries that disallowed the application to start when .NET 4.5 was not installed on the machine (but only .NET 4.0). The following packages are affected: SimpleInjector.Integration.Web.dll SimpleInjector.Integration.Web.Mvc.dll SimpleInjector.Integration.Wcf.dll SimpleInjector.Extensions.LifetimeScoping.dllBootstrap Helpers: Version 1: First releasesheetengine - Isometric HTML5 JavaScript Display Engine: sheetengine v1.2.0: Main featuresOptimizations for intersectionsThe main purpose of this release was to further optimize rendering performance by skipping object intersections with other sheets. From now by default an object's sheets will only intersect its own sheets and never other static or dynamic sheets. This is the usual scenario since objects will never bump into other sheets when using collision detection. DocumentationMany of you have been asking for proper documentation, so here it goes. Check out the...DirectX Tool Kit: December 11, 2012: December 11, 2012 Ex versions of DDSTextureLoader and WICTextureLoader Removed use of ATL's CComPtr in favor of WRL's ComPtr for all platforms to support VS Express editions Updated VS 2010 project for official 'property sheet' integration for Windows 8.0 SDK Minor fix to CommonStates for Feature Level 9.1 Tweaked AlphaTestEffect.cpp to work around ARM NEON compiler codegen bug Added dxguid.lib as a default library for Debug builds to resolve GUID link issuesArcGIS Editor for OpenStreetMap: ArcGIS Editor for OSM 2.1 Final for 10.1: We are proud to announce the release of ArcGIS Editor for OpenStreetMap version 2.1. This download is compatible with ArcGIS 10.1, and includes setups for the Desktop Component, Desktop Component when 64 bit Background Geoprocessing is installed, and the Server Component. Important: if you already have ArcGIS Editor for OSM installed but want to install this new version, you will need to uninstall your previous version and then install this one. This release includes support for the ArcGIS 1...SharpCompress - a fully native C# library for RAR, 7Zip, Zip, Tar, GZip, BZip2: SharpCompress 0.8.2: This release just contains some fixes that have been done since the last release. Plus, this is strong named as well. I apologize for the lack of updates but my free time is less these days.Media Companion: MediaCompanion3.511b release: Two more bug fixes: - General Preferences were not getting restored - Fanart and poster image files were being locked, preventing changes to themVodigi Open Source Interactive Digital Signage: Vodigi Release 5.5: The following enhancements and fixes are included in Vodigi 5.5. Vodigi Administrator - Manage Music Files - Add Music Files to Image Slide Shows - Manage System Messages - Display System Messages to Users During Login - Ported to Visual Studio 2012 and MVC 4 - Added New Vodigi Administrator User Guide Vodigi Player - Improved Login/Schedule Startup Procedure - Startup Using Last Known Schedule when Disconnected on Startup - Improved Check for Schedule Changes - Now Every 15 Minutes - Pla...New Projects1Q86: testAdd Ratings to SharePoint Blog Site: This web part is an ‘administrative’ level tool used to update a Blog site to a) enable ratings on the post and b) add the User Ratings web part to the site. BadmintonBuddy: Source codeBetter Place Admin: Admin client for the BetterPlaceBooking ProjectBorkoSi: BorkoSi WebPage Source code.ChimpHD - 2D Evolved: High quality OpenCL accelerated 2D engine, capable of full complex yet easy to code 2D games. This is SpaceChimp2.0, wrote from the ground up, not just patchedCoderJoe: Repository for code samples used in my blog.CodeTemplate: ??????Data Persistent Object: ORM tool to access SQL Server, log record changes, Json and Linq supportedDevian: a simple web portal based on asp.net 2.0HD: hdHospital Tracking: hospital patient tracking ????? ???? ??????? ???? ?????Instant Get: An auction based c# applicationipangolin: DICOM stands for Digital Imaging and COmmunication in Medicine. The DICOM standard addresses the basic connectivity between different imaging devices.ISEFun: PowerShell module(s) to simplify work in it. It contains PowerShell scripts, compiled libs and some formating files. Several modules will come in one batch as optional features.Kerjasama: Aplikasi Database Kerjasama Bagian Kerjasama Kota SemarangMCEBuddy Viewer: Windows Media Center Plugin for MCEBuddy 2.x MusicForMyBlog: Link your recently played music in Itunes to your blog.My Expenses Windows Store LOB App Demo: This is a sample Windows 8 LOB app. Employees can use this app to create and submit expense reports. And managers can approve or reject those reports.Node Paint: An app based on the nodegarden application created by alphalabs.ccNPhysics: NPhysics - Physical Data Types for .NETomr.domready.js: Dom is ready? This project provides easy to detect ready event of dom.RegSecEdit: set registry security from command line, or batch file.Sitecore - Logger Module: This module provides an abstraction of the built-in Sitecore Logging features.SMART LMS: Welcome to SMART LMS, a learning management system with a difference, this software will allow teachers to create custom education activities such as quizzes.TaskManagerDD: DotNetNuke task manager tutorialThe Reactive Extensions for JavaScript: RxJS or Reactive Extensions for JavaScript is a library for transforming, composing, and querying streams of data.Timestamp: Tool for generating timestamps into clipboard for fast use.TweetGarden: Visualising connected users using their tweetsUpdateContentType: UpdateContentType atualiza os modelos de documentos utilizados por tipos de conteúdo do SharePoint a partir de documentos armazenados em uma biblioteca.User Rating Web Part for SharePoint 2010: User Rating Web Part - the fix for Ratings in SharePoint!webget: webgetwhatsnew.exe a command line utility to find new files: whatsnew.exe is a command line utility that lists the files created (new files) in a given number of days. whatsnew.exe 's syntax is very simple: whatsnew path numberofdays Also whatsnew supports other options like HTML or XML output, hyperlinked outputs and more.whoami: ip address resolverWPFReview: WPF code sample

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  • How to easily upgrade MySQL 5.0.32 to MySQL 5.1.20 or higher on Debian Etch?

    - by Ferdy
    I have a home server running Debian Etch with MySQL 5.0.32 on it. I'm not much of a Linux administrator but two years ago I installed the server and it runs fine. I used the official MySQL package for Debian at that time. Since then I have been happily making use of it. Now I need to use a MySQL function that is only available in MySQL 5.1.20 and higher. Therefore I would like to upgrade. I'm not that confident in messing with something I need every day so I wanted to check with you what the best upgrade path would be? Obviously I prefer a simple upgrade that keeps my database, users and settings in place as they are now.

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  • Nginx .zip files return 404

    - by Kenley Tomlin
    I have set up Nginx as a reverse proxy for Node and to serve my static files and user uploaded images. Everything is working beautifully except that I can't understand why Nginx can't find my .zip files. Here is my nginx.conf. user nginx; worker_processes 1; error_log /var/log/nginx/error.log warn; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include mime.types; proxy_cache_path /var/www/web_cache levels=1:2 keys_zone=ooparoopaweb_cache:8m max_size=1000m inactive=600m; sendfile on; upstream *******_node { server 172.27.198.66:8888 max_fails=3 fail_timeout=20s; #fair weight_mode=idle no_rr } upstream ******_json_node { server 172.27.176.57:3300 max_fails=3 fail_timeout=20s; } server { #REDIRECT ALL HTTP REQUESTS FOR FRONT-END SITE TO HTTPS listen 80; server_name *******.com www.******.com; return 301 https://$host$request_uri; } server { #MOBILE APPLICATION PROXY TO NODE JSON listen 3300 ssl; ssl_certificate /*****/*******/json_ssl/server.crt; ssl_certificate_key /*****/******/json_ssl/server.key; server_name json.*******.com; location / { proxy_pass http://******_json_node; proxy_redirect off; proxy_set_header Host $host ; proxy_set_header X-Real-IP $remote_addr ; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for ; proxy_set_header X-Forwarded-Proto https; client_max_body_size 20m; client_body_buffer_size 128k; proxy_connect_timeout 90s; proxy_send_timeout 90s; proxy_read_timeout 90s; proxy_buffers 32 4k; } } server { #******.COM FRONT-END SITE PROXY TO NODE WEB SERVER listen 443 ssl; ssl_certificate /***/***/web_ssl/********.crt; ssl_certificate_key /****/*****/web_ssl/myserver.key; server_name mydomain.com www.mydomain.com; add_header Strict-Transport-Security max-age=500; location / { gzip on; gzip_types text/html text/css application/json application/x-javascript; proxy_pass http://mydomain_node; proxy_redirect off; proxy_set_header Host $host ; proxy_set_header X-Real-IP $remote_addr ; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for ; proxy_set_header X-Forwarded-Proto https; client_max_body_size 20m; client_body_buffer_size 128k; proxy_connect_timeout 90s; proxy_send_timeout 90s; proxy_read_timeout 90s; proxy_buffers 32 4k; } } server { #ADMIN SITE PROXY TO NODE BACK-END listen 80; server_name admin.mydomain.com; location / { proxy_pass http://mydomain_node; proxy_redirect off; proxy_set_header Host $host ; proxy_set_header X-Real-IP $remote_addr ; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for ; client_max_body_size 20m; client_body_buffer_size 128k; proxy_connect_timeout 90s; proxy_send_timeout 90s; proxy_read_timeout 90s; proxy_buffers 32 4k; } } server { # SERVES STATIC FILES listen 80; listen 443 ssl; ssl_certificate /**/*****/server.crt; ssl_certificate_key /****/******/server.key; server_name static.domain.com; access_log static.domain.access.log; root /var/www/mystatic/; location ~*\.(jpeg|jpg|png|ico)$ { gzip on; gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/rss+xml text/javascript image/svg+xml application/vnd.ms-fontobject application/x-font-ttf font/opentype image/png image/jpeg application/zip; expires 10d; add_header Cache-Control public; } location ~*\.zip { #internal; add_header Content-Type "application/zip"; add_header Content-Disposition "attachment; filename=gamezip.zip"; } } } include tcp.conf; Tcp.conf contains settings that allow Nginx to proxy websockets. I don't believe anything contained within it is relevant to this question. I also want to add that I want the zip files to be a forced download.

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  • Recovering drivers from previous installation?

    - by Walkerneo
    Yesterday I bought a new computer and I've been setting it up since this morning. The hard drive came with windows 7 home premium (x64) installed, but I decided to instead install windows 7 ultimate (x64) - this is what I'm currently using. Unfortunately, there were some drivers that were installed that I need in this installation. I only notice because the computer doesn't have the ethernet drivers, so I'm only able to connect to the internet via wireless. There are other drivers missing as well, but I'm not yet seeing the effects. I still have the Windows.old folder with the previous installation, which has the drivers. Is there any way to copy the necessary ones over? I tried the options for updating driver software through device manager with the path set to System32\drivers of the old installation, but it didn't find anything.

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  • Attend my GTC sessions

    - by Daniel Moth
    The last GTC conference in the US was 2 years ago and I was there as an attendee. You may recall from that blog post that we were running UX studies at the time. It really feels great 2 years later, to be back at GTC presenting two sessions on C++ AMP, demonstrating our progress that includes input from those early studies. If you are attending GTC (in person or virtually later), be sure to watch my two-part session. Part 1 is S0242 on Wednesday 5pm and part 2 is S0244 on Thursday 10am. Here is the shared abstract for both parts: Harnessing GPU Compute with C++ AMP C++ AMP is an open specification for taking advantage of accelerators like the GPU. In this session we will explore the C++ AMP implementation in Microsoft Visual Studio 11 Beta. After a quick overview of the technology understanding its goals and its differentiation compared with other approaches, we will dive into the programming model and its modern C++ API. This is a code heavy, interactive, two-part session, where every part of the library will be explained. Demos will include showing off the richest parallel and GPU debugging story on the market, in the upcoming Visual Studio release. See you there! Comments about this post by Daniel Moth welcome at the original blog.

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  • Shockwave Flash crashes with Chromium and Firefox

    - by Stephan
    Since updating to Ubuntu 13.10, Shockwave Flash does not work in Chromium or Firefox. Both show a "Shockwave Flash has crashed" dialog. Chromium 29.0.1547.65 After loading a page with a Flash video, I get this warning on the console twice: NVIDIA: could not open the device file /dev/nvidia0 (Operation not permitted). When I try to play the video, it crashes and I receive these disorted error messages: (exe:14868): Gdk-WARNING **: XID collision, trouble ahead [xcb] Extra reply data still left in queue [xcb] This is most likely caused by a broken X extension library [xcb] Aborting, sorry about that. owser --type=plugin --plugin-path=/usr/lib/flashplugin-installer/libflashplayer.so --lang=de --channel=14560.18.20766867: ../../src/xcb_io.c:576: _XReply: Assertion `!xcb_xlib_extra_reply_data_left' failed. Firefox 25.0 With Firefox, I get these errors: ###!!! ABORT: Request 154.24: BadValue (integer parameter out of range for operation); 3 requests ago: file /build/buildd/firefox-25.0+build3/toolkit/xre/nsX11ErrorHandler.cpp, line 157 WARNING: pipe error (110): Connection reset by peer: file /build/buildd/firefox-25.0+build3/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 437 ###!!! [Parent][RPCChannel] Error: Channel error: cannot send/recv What I tried so far Reinstalling flashplugin-installer Changing permissions of /dev/nvidia0 It seems that Flash Aid is no longer available. GPU acceleration is working fine, e.g. for Portal. Does anyone know how to fix this?

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  • How to fix Failed to initialize Windows Azure storage emulator error

    - by ybbest
    When you press F5 to start debugging Azure project, you might get the following exception: If you go to the Output windows, you will see the detailed error message below: Windows Azure Tools: Failed to initialize Windows Azure storage emulator. Unable to start Development Storage. Failed to start Development Storage: the SQL Server instance ‘localhost\SQLExpress’ could not be found. Please configure the SQL Server instance for Development Storage using the ‘DSInit’ utility in the Windows Azure SDK. This is because by default, Azure uses the SQLExpress to start Development Storage. To fix this you can do the following: You need to open command prompt, and navigate to C:\Program Files\Windows Azure SDK\v1.4\bin\devstore (depending on your Azure version, the file path is slightly different.) Next, run DSInit /sqlInstance:. (. Means the SQL Server use the default instance, if you have name instance, you need to change. to the name of the SQL Server) After a short while, you should see the following windows showing the configuration succeeds. You can download a batch file here. References: http://msdn.microsoft.com/en-us/library/gg433132.aspx

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  • Ubuntu one, music streaming

    - by iknowshall
    I'm running Ubuntu 11.10, and just signed up for Ubuntu One and Ubuntu One Music. Generally file sync is working fine, but music has been a complete failure so far. Here's what I'm looking at: After 24 hours, not a single mp3 or ogg file from my laptop has sync'd to the Cloud Music folder. I have 4 gigs of data used, which is definitely not enough to include music files. That's about the right amount for my docs and photos. With music, it should be more like 13 gigs. No music shows up on the Ubuntu One Music app on my phone, nor on the web view of my Ubuntu One Cloud folder I followed all the online instructions I could find. Basically, on my laptop, right click on the Music folder and select "Ubuntu One Synchronize this folder" The Music folder now has a green check mark on it indicating its sync'd The Ubuntu One app on my laptop says "File Sync is up to date" I did provide credit card information, and on the Ubuntu One website "Music Streaming" is listed as one of my services. So what am I doing wrong? Just read this post as I'm experiencing the same problem, the answer for this post says that due to the large number of files trying to be uploaded, that it could take up to a week. However I am, as above also being told that "File sync is up to date" Can somebody confirm that this is a bug and that I just need to wait for File sync to actually be up to date? Cheers

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  • MCSE and MCSA makes a return to the world of certification..... but not as you know it.

    - by Testas
    Quick announcementMicrosoft Learning today announced the certification tracks for the upcoming SQL Server 2012 exams.You begin by acheiving the MCSA - Microsoft Certified Solutions Associate (Not to be confused by the old Microsoft Certified System Administrator)If you are starting out this includes taking the following three exams:Exam 70-461: Querying Microsoft SQL Server 2012Exam 70-462: Administering Microsoft SQL Server 2012 DatabasesExam 70-463: Implementing a Data Warehouse with Microsoft SQL Server 2012If you have an MCTS in SQL Server 2008 already you can take the following pathA pass in a SQL Server 2008 (MCTS) Microsoft Certified Technology Specialist examExam 70-457: transisitioning your MCTS on SQL Server 2008 to MCSA on SQL Server 2012 part 1Exam 70-458: transisitioning your MCTS on SQL Server 2008 to MCSA on SQL Server 2012 part 2Once you have achieved you MCSA status you can then start for your MCSE - Microsoft Certified Solutions Expert certificationYou have a choice, to do the MCSE: SQL Server 2012 Data Platform, MCSE: SQL Server 2012 Business Intelligence or you could do bothMCSE: SQL Server 2012 Data Platform involvesObtain your SQL Server 2012 MCSAExam 70-464: Developing Microsoft SQL Server 2012 DatabasesExam 70-465: Designing Database Solutions for Microsoft SQL Server 2012There is also an upgrade pathA pass in a SQL Server 2008 (MCITP) Microsoft Certified IT Professional Database Administrator or Database Developer CertificationExam 70-457: transisitioning your MCTS on SQL Server 2008 to MCSA on SQL Server 2012 part 1Exam 70-458: transisitioning your MCTS on SQL Server 2008 to MCSA on SQL Server 2012 part 2Exam 70-459: transisitioning your MCITP on SQL Server 2008 Database Administrator or Database Developer to MCSE:Data PlatformMCSE: SQL Server 2012 Business Intelligence involvesObtain your SQL Server 2012 MCSAExam 70-466: Implementing Data Models and Reports with Microsoft SQL Server 2012Exam 70-467: Designing Business Intelligence Solutions with Microsoft SQL Server 2012The upgrade path involves:A pass in a SQL Server 2008 (MCITP) Microsoft Certified IT Professional Business Intelligence CertificationExam 70-457: transisitioning your MCTS on SQL Server 2008 to MCSA on SQL Server 2012 part 1Exam 70-458: transisitioning your MCTS on SQL Server 2008 to MCSA on SQL Server 2012 part 2Exam 70-460: transisitioning your MCITP on SQL Server 2008 Business Intelligence Developer to MCSE:Business IntelligenceAs a result if you want to achieve the MCSE in either Data Platform or Business Intelligence and you are starting from scratch there will be 5 exams to takeIf you have the ability to upgrade your certification because you have an MCITP already then it will be three examsFull details and questions can be found at http://www.microsoft.com/learning/en/us/certification/cert-sql-server.aspxThanksChris

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  • How to run MS C++ 6.0 on Windows 7

    - by hotei
    I have MS Windows C++ version 6.0 on XP. I'd like to move it to a Windows 7 platform but when I try to install it there I get some garbage about it not being compatible, proceed at your own risk etc. When I proceed, it (not surprisingly) doesn't work. Is there a way to convince these Microsoft tools to play nice with each other? I have Win7 home edition, but I would be willing to upgrade to Win7 Pro IF I knew it would work under the "XP emulation" mode. Failing both those options, what is the least expensive "upgrade" path for C++? I don't need a bunch of other junk, just the C++ compiler. The goal is to retire my XP system since currently the only reason I keep it is to compile C++ programs that eventually are run under Win7. Thanks, Hotei

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  • New ACS Resell Portfolio for OPN Members

    - by rituchhibber
    Oracle Advanced Customer Support (ACS) Services is pleased to announce availability of the ACS Resell Portfolio to Oracle PartnerNetwork (OPN) members on June 28, 2012. The ACS Resell Portfolio is available to Gold level OPN members and above selling to end users with valid Oracle Premier Support/End User agreements, and in countries where ACS has a local in-country presence to support the partner business. ACS provides mission critical support services for complex IT environments to help maximize performance, achieve higher availability, and reduce risk. The ACS Resell Portfolio can be leveraged to reduce time to market and drive improved end user satisfaction. Including ACS services at point of license sale can maximize your success as an Oracle partner.       On July 10, 2012, Oracle ACS is hosting a 60-minute resell portfolio training session. Topics include: ACS Resell Portfolio objectives   Partner participation requirements ACS portfolio services enabled for partner resell ACS sales engagement and transaction processes Contracting requirements Attend the following session to hear how you can maximize your profit opportunities by including ACS services, which compliment your solutions with integrated Oracle advanced support technologies.      DIAL-IN INFORMATION Webconference July 10, 2012 4:00 PM CEST Webconference Session Number: 591 988 820 Session Password: ebh12345 International: 706.501.7506 US: 866.589.6202 Call ID: 95867658 Click here for a list of toll-free international numbers. Please contact [email protected] with any questions or visit the ACS website.

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  • July, the 31 Days of SQL Server DMO’s – Day 31 (sys.dm_server_services)

    - by Tamarick Hill
    The last DMV for this month long blog session is the sys.dm_server_services DMV. This DMV returns information about your SQL Server, Full-Text, and SQL Server Agent related services. To further illustrate the information this DMV contains, lets run it against our Training instance that we have been using for this blog series. SELECT * FROM sys.dm_server_services The first column returned by this DMV is the actual Service Name. The next columns are the startup_type and startup_type_desc columns which display your chosen method for how a particular method should be started. The next columns status and status_desc display the current status for each of your Services on the instance. The process_id column represents the server process id. The last_startup_time column gives you the last time that a particular service was started. The service_account column provides you with the name of the account that is used to control the service. The filename column gives you the full path to the executable for the service. Lastly we have the is_clustered column and the cluster_nodename which indicates whether or not a particular service is clustered and is part of a resource cluster group, and if so, the cluster node that the service is installed on. This is a good DMV to provide you with a quick snapshot view of the current SQL Server services you have on your instance. For more information on this DMV, please see the below Books Online link: http://msdn.microsoft.com/en-us/library/hh204542.aspx Follow me on Twitter @PrimeTimeDBA

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  • Arch Linux with an nginx/django setup refuses to display ANYTHING

    - by Holland
    I'm on Amazon Ec2, with an Arch Linux server. While I truly am loving it, I'm having the issue of actually getting nginx to display anything. Everytime I try to throw my hostname into the browser, the browser states that it's not available for some reason - almost as if the host doesn't even exist. One thing I'd like to know is, how can I get this up and running? Is there a specific arch linux configuration I have to do to make it web accessible? I have port 80 open, as well as port 22. I've tried using gunicorn, python-flup, and nginx. Nginx Config user http; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; server { listen 80; server_name _; access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; #charset koi8-r; location ^~ /media/ { root /path/to/media; } location ^~ /admin-media/ { root /usr/lib/python2.7/site-packages/django/contrib/admin/media; } location / { root /path/to/root/; fastcgi_pass 127.0.0.1:8080; fastcgi_param SERVER_NAME $server_name; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param PATH_INFO $fastcgi_script_name; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param QUERY_STRING $query_string; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_pass_header Authorization; fastcgi_intercept_errors off; fastcgi_index index.html; index index.htm index.html; } error_page 500 502 503 504 /50x.html; location = /50x.html { root /etc/nginx/html/50x.html; } } # server { # listen 80; # server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; # location / { # root html; # index index.html index.htm; # } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # #error_page 500 502 503 504 /50x.html; #location = /50x.html { root html; #} # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} #} # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # location / { # root html; # index index.html index.htm; # } #} # HTTPS server # #server { # listen 443; # server_name localhost; # ssl on; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # ssl_session_timeout 5m; # ssl_protocols SSLv2 SSLv3 TLSv1; # ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on; # location / { # root html; # index index.html index.htm; # } #} } I can't quite tell if it's a server issue or a configuration issue: I've followed so many guides now I can't even count them all. The thing is that Django itself is working fine, and my permissions to the document root of the where the site files are stored is 777. Ontop of that, I have a git repo which works perfectly fine, and django, python, and runfcgi all start without issues. The same goes for gunicorn, when I do a gunicorn_django -b 0.0.0.0:8000 in my document root. Here is my output from that: 2012-04-15 05:17:37 [3124] [INFO] Starting gunicorn 0.14.2 2012-04-15 05:17:37 [3124] [INFO] Listening at: http://0.0.0.0:8081 (3124) 2012-04-15 05:17:37 [3124] [INFO] Using worker: sync 2012-04-15 05:17:37 [3127] [INFO] Booting worker with pid: 3127 As far as I know, everything seems fine, as well as error.log and access.log for nginx. The access log is completely blank, for that matter. I just feel lost here; what would be a step in the right direction to bebugging an issue such as this?

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  • Organizations &amp; Architecture UNISA Studies &ndash; Chap 7

    - by MarkPearl
    Learning Outcomes Name different device categories Discuss the functions and structure of I/.O modules Describe the principles of Programmed I/O Describe the principles of Interrupt-driven I/O Describe the principles of DMA Discuss the evolution characteristic of I/O channels Describe different types of I/O interface Explain the principles of point-to-point and multipoint configurations Discuss the way in which a FireWire serial bus functions Discuss the principles of InfiniBand architecture External Devices An external device attaches to the computer by a link to an I/O module. The link is used to exchange control, status, and data between the I/O module and the external device. External devices can be classified into 3 categories… Human readable – e.g. video display Machine readable – e.g. magnetic disk Communications – e.g. wifi card I/O Modules An I/O module has two major functions… Interface to the processor and memory via the system bus or central switch Interface to one or more peripheral devices by tailored data links Module Functions The major functions or requirements for an I/O module fall into the following categories… Control and timing Processor communication Device communication Data buffering Error detection I/O function includes a control and timing requirement, to coordinate the flow of traffic between internal resources and external devices. Processor communication involves the following… Command decoding Data Status reporting Address recognition The I/O device must be able to perform device communication. This communication involves commands, status information, and data. An essential task of an I/O module is data buffering due to the relative slow speeds of most external devices. An I/O module is often responsible for error detection and for subsequently reporting errors to the processor. I/O Module Structure An I/O module functions to allow the processor to view a wide range of devices in a simple minded way. The I/O module may hide the details of timing, formats, and the electro mechanics of an external device so that the processor can function in terms of simple reads and write commands. An I/O channel/processor is an I/O module that takes on most of the detailed processing burden, presenting a high-level interface to the processor. There are 3 techniques are possible for I/O operations Programmed I/O Interrupt[t I/O DMA Access Programmed I/O When a processor is executing a program and encounters an instruction relating to I/O it executes that instruction by issuing a command to the appropriate I/O module. With programmed I/O, the I/O module will perform the requested action and then set the appropriate bits in the I/O status register. The I/O module takes no further actions to alert the processor. I/O Commands To execute an I/O related instruction, the processor issues an address, specifying the particular I/O module and external device, and an I/O command. There are four types of I/O commands that an I/O module may receive when it is addressed by a processor… Control – used to activate a peripheral and tell it what to do Test – Used to test various status conditions associated with an I/O module and its peripherals Read – Causes the I/O module to obtain an item of data from the peripheral and place it in an internal buffer Write – Causes the I/O module to take an item of data form the data bus and subsequently transmit that data item to the peripheral The main disadvantage of this technique is it is a time consuming process that keeps the processor busy needlessly I/O Instructions With programmed I/O there is a close correspondence between the I/O related instructions that the processor fetches from memory and the I/O commands that the processor issues to an I/O module to execute the instructions. Typically there will be many I/O devices connected through I/O modules to the system – each device is given a unique identifier or address – when the processor issues an I/O command, the command contains the address of the address of the desired device, thus each I/O module must interpret the address lines to determine if the command is for itself. When the processor, main memory and I/O share a common bus, two modes of addressing are possible… Memory mapped I/O Isolated I/O (for a detailed explanation read page 245 of book) The advantage of memory mapped I/O over isolated I/O is that it has a large repertoire of instructions that can be used, allowing more efficient programming. The disadvantage of memory mapped I/O over isolated I/O is that valuable memory address space is sued up. Interrupts driven I/O Interrupt driven I/O works as follows… The processor issues an I/O command to a module and then goes on to do some other useful work The I/O module will then interrupts the processor to request service when is is ready to exchange data with the processor The processor then executes the data transfer and then resumes its former processing Interrupt Processing The occurrence of an interrupt triggers a number of events, both in the processor hardware and in software. When an I/O device completes an I/O operations the following sequence of hardware events occurs… The device issues an interrupt signal to the processor The processor finishes execution of the current instruction before responding to the interrupt The processor tests for an interrupt – determines that there is one – and sends an acknowledgement signal to the device that issues the interrupt. The acknowledgement allows the device to remove its interrupt signal The processor now needs to prepare to transfer control to the interrupt routine. To begin, it needs to save information needed to resume the current program at the point of interrupt. The minimum information required is the status of the processor and the location of the next instruction to be executed. The processor now loads the program counter with the entry location of the interrupt-handling program that will respond to this interrupt. It also saves the values of the process registers because the Interrupt operation may modify these The interrupt handler processes the interrupt – this includes examination of status information relating to the I/O operation or other event that caused an interrupt When interrupt processing is complete, the saved register values are retrieved from the stack and restored to the registers Finally, the PSW and program counter values from the stack are restored. Design Issues Two design issues arise in implementing interrupt I/O Because there will be multiple I/O modules, how does the processor determine which device issued the interrupt? If multiple interrupts have occurred, how does the processor decide which one to process? Addressing device recognition, 4 general categories of techniques are in common use… Multiple interrupt lines Software poll Daisy chain Bus arbitration For a detailed explanation of these approaches read page 250 of the textbook. Interrupt driven I/O while more efficient than simple programmed I/O still requires the active intervention of the processor to transfer data between memory and an I/O module, and any data transfer must traverse a path through the processor. Thus is suffers from two inherent drawbacks… The I/O transfer rate is limited by the speed with which the processor can test and service a device The processor is tied up in managing an I/O transfer; a number of instructions must be executed for each I/O transfer Direct Memory Access When large volumes of data are to be moved, an efficient technique is direct memory access (DMA) DMA Function DMA involves an additional module on the system bus. The DMA module is capable of mimicking the processor and taking over control of the system from the processor. It needs to do this to transfer data to and from memory over the system bus. DMA must the bus only when the processor does not need it, or it must force the processor to suspend operation temporarily (most common – referred to as cycle stealing). When the processor wishes to read or write a block of data, it issues a command to the DMA module by sending to the DMA module the following information… Whether a read or write is requested using the read or write control line between the processor and the DMA module The address of the I/O device involved, communicated on the data lines The starting location in memory to read from or write to, communicated on the data lines and stored by the DMA module in its address register The number of words to be read or written, communicated via the data lines and stored in the data count register The processor then continues with other work, it delegates the I/O operation to the DMA module which transfers the entire block of data, one word at a time, directly to or from memory without going through the processor. When the transfer is complete, the DMA module sends an interrupt signal to the processor, this the processor is involved only at the beginning and end of the transfer. I/O Channels and Processors Characteristics of I/O Channels As one proceeds along the evolutionary path, more and more of the I/O function is performed without CPU involvement. The I/O channel represents an extension of the DMA concept. An I/O channel ahs the ability to execute I/O instructions, which gives it complete control over I/O operations. In a computer system with such devices, the CPU does not execute I/O instructions – such instructions are stored in main memory to be executed by a special purpose processor in the I/O channel itself. Two types of I/O channels are common A selector channel controls multiple high-speed devices. A multiplexor channel can handle I/O with multiple characters as fast as possible to multiple devices. The external interface: FireWire and InfiniBand Types of Interfaces One major characteristic of the interface is whether it is serial or parallel parallel interface – there are multiple lines connecting the I/O module and the peripheral, and multiple bits are transferred simultaneously serial interface – there is only one line used to transmit data, and bits must be transmitted one at a time With new generation serial interfaces, parallel interfaces are becoming less common. In either case, the I/O module must engage in a dialogue with the peripheral. In general terms the dialog may look as follows… The I/O module sends a control signal requesting permission to send data The peripheral acknowledges the request The I/O module transfers data The peripheral acknowledges receipt of data For a detailed explanation of FireWire and InfiniBand technology read page 264 – 270 of the textbook

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  • What is the best strategy for transforming unicode strings into filenames?

    - by David Cowden
    I have a bunch (thousands) of resources in an RDF/XML file. I am writing a certain subset of the resources to files -- one file for each, and I'm using the resource's title property as the file name. However, the titles are every day article, website, and blog post titles, so they contain characters unsafe for a URI (the necessary step for constructing a valid file path). I know of the Jersey UriBuilder but I can't quite get it to work for my needs as I detailed in a different question on SO. Some possibilities I have considered are: Since each resource should also have an associated URL, I could try to use the name of the file on the server. The down side of this is sometimes people don't name their content logically and I think the title of an article better reflects the content that will be in each text file. Construct a white list of valid characters and parse the string myself defining substitutions for unsafe characters. The downside of this is the result could be just as unreadable as the former solution because presumably the content creators went through a similar process when placing the files on their server. Choose a more generic naming scheme, place the title in the text file along with the other attributes, and tell my boss to live with it. So my question here is, what methods work well for dealing with a scenario where you need to construct file names out of strings with potentially unsafe characters? Is there a solution that better fills out my constraints?

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  • Visual Studio 2010 Winform Application &ndash; Unable to resolve custom assemblies?

    - by Harish Ranganathan
    Recently I surfaced a problem where, one of my friend had a tough time in getting rid of an assembly reference error.  Despite adding reference to the assembly, while referencing it in code, it was spitting out the “The type or namespace name ‘ASSEMBLYNAME’ could not be found” error.   This was a migration project and owing to the above error, it was throwing another 100 errors. We tried adding reference to the assembly in other projects and it was not even resolving the namespace while typing out in the using section. Upon further digging into the error warnings, it indicated something to do with the .NET Framework targeted i.e. 4.0.  My suspicion grew since the target framework was 4.0 and the assembly should be able to be recognized.  Then, when we checked “Project – “<APPNAME> Properties…”, the issue was with the default target framework which is “.NET Framework 4 Client Profile” By default, Visual Studio 2010 creates Windows Forms App/WPF Apps with the Target Framework set to .NET Framework 4 Client Profile.  This is to minimize the framework size required to be bundled along with the app. Client Profile is new feature since .NET 3.5 SP1 that allows users to package a minified version of .NET Framework that doesn’t include stuff such as ASP.NET, Server programming assemblies and few other assemblies which are typically never used in the Desktop Applications. Since the .NET Framework client profile is a minified version, it doesn’t contain all the assemblies related to Web services and other deprecated assemblies.  However, this application is a migration app and needed some of the references from Services and hence couldn’t run. Once, we changed the Target Framework to .NET Framework 4 instead of the default client profile, the application compiled. Here is link to a very nice article that explains the features of .NET Framework 4 client Profile, the assemblies supported by default etc., http://blogs.msdn.com/b/jgoldb/archive/2010/04/12/what-s-new-in-net-framework-4-client-profile-rtm.aspx Cheers !!

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  • Business Objects - Containers or functional?

    - by Walter
    This is a question I asked a while back on SO, but it may get discussed better here... Where I work, we've gone back and forth on this subject a number of times and are looking for a sanity check. Here's the question: Should Business Objects be data containers (more like DTOs) or should they also contain logic that can perform some functionality on that object. Example - Take a customer object, it probably contains some common properties (Name, Id, etc), should that customer object also include functions (Save, Calc, etc.)? One line of reasoning says separate the object from the functionality (single responsibility principal) and put the functionality in a Business Logic layer or object. The other line of reasoning says, no, if I have a customer object I just want to call Customer.Save and be done with it. Why do I need to know about another class to save a customer if I'm consuming the object? Our last two projects have had the objects separated from the functionality, but the debate has been raised again on a new project. Which makes more sense and why??

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  • Why My Adsense Account is not accepted

    - by Muhammad Adeel Zahid
    I have created a blog on blogger few days ago and created two blog entries on it. when i try creating AdSense account with blog's address it does not accept the application due to PageType. i have searched around on the net and found that its probably due to duplicate or insufficient content on the blog but either of my blog entry is more than 2,000 words and i have literally typed 80 percent of its content with only few code blocks copied from other sites. Below is content of email i received as response to my application. Hello, Thank you for your interest in Google AdSense. Unfortunately, after reviewing your application, we're unable to accept you into AdSense at this time. We did not approve your application for the reasons listed below. Issues: - Page Type Further detail: Page Type: In order to participate in Google AdSense, publishers' websites and application information must satisfy the following guidelines: Your website must be your own top-level domain (www.example.com and not www.example.com/mysite). You must provide accurate personal information with your application that matches the information on your domain registration. Your website must contain substantial, original content. Your site must comply with Google AdSense program policies: https://www.google.com/adsense/policies" which include Google's webmaster quality guidelines: http://www.google.com/support/webmasters/bin/answer.py?answer=35769#quality . If your site satisfies the above criteria in the future, please resubmit your application and we'll review it as soon as possible My Personal credentials are also same as they appear in my google account. i can't figure out the problem. Any Help/Suggestion is highly appreciated. regards

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  • Effect of NonBlockingSendSpecialBuffering setting on Windows

    - by user52498
    Recently I ran into some issue related to the UDP sending on Windows. When the application tries to send the packets over UDP in non-blocking mode, often it received socket error 10035 (WSAEWOULDBLOCK) in the send(), so likely that the socket buffer is full. I only seen this issue on Windows 2008 and did not see the same problem on Windows 2003. I was doing some research and found the following article (although it mention TCP) http://support.microsoft.com/kb/823764 At the bottom it mentioned updating of the registry value HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AFD\Parameters\NonBlockingSendSpecialBuffering to 1 But it didn't include further details Would anyone know what is the effect of setting this registry value and what does it do? I tried to research on the web but unable to find any reference, including the msdn website. Any help would be appreciated.

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