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  • CodePlex Daily Summary for Friday, August 24, 2012

    CodePlex Daily Summary for Friday, August 24, 2012Popular ReleasesVisual Studio Team Foundation Server Branching and Merging Guide: v2 - Visual Studio 2012: Welcome to the Branching and Merging Guide Quality-Bar Details Documentation has been reviewed by Visual Studio ALM Rangers Documentation has been through an independent technical review Documentation has been reviewed by the quality and recording team All critical bugs have been resolved Known Issues / Bugs Spelling, grammar and content revisions are in progress. Hotfix will be published.Community TFS Build Extensions: August 2012: The August 2012 release contains VS2010 Activities(target .NET 4.0) VS2012 Activities (target .NET 4.5) Community TFS Build Manager VS2010 Community TFS Build Manager VS2012 Both the Community TFS Build Managers can also be found in the Visual Studio Gallery here where updates will first become available. Please note that we only intend to fix major bugs in the 2010 version and will concentrate our efforts on the 2012 version of the TFS Build Manager. At a high level, the following I...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.62: Fix for issue #18525 - escaped characters in CSS identifiers get double-escaped if the character immediately after the backslash is not normally allowed in an identifier. fixed symbol problem with nuget package. 4.62 should have nuget symbols available again.Game of Life 3D: GameOfLife3D Version 0.5.2: Support Windows 8nopCommerce. Open source shopping cart (ASP.NET MVC): nopcommerce 2.65: As some of you may know we were planning to release version 2.70 much later (the end of September). But today we have to release this intermediate version (2.65). It fixes a critical issue caused by a third-party assembly when running nopCommerce on a server with .NET 4.5 installed. No major features have been introduced with this release as our development efforts were focused on further enhancements and fixing bugs. To see the full list of fixes and changes please visit the release notes p...MyRouter (Virtual WiFi Router): MyRouter 1.2.9: . Fix: Some missing changes for fixing the window subclassing crash. · Fix: fixed bug when Run MyRouter at the first Time. · Fix: Log File · Fix: improve performance speed application · fix: solve some Exception.Smart Thread Pool: SmartThreadPool 2.2.2: Release Changes Added set name to threads Fixed the WorkItemsQueue.Dequeue. Replaced while(!Monitor.TryEnter(this)); with lock(this) { ... } Fixed SmartThreadPool.Pipe Added IsBackground option to threads Added ApartmentState to threads Fixed thread creation when queuing many work items at the same time.ZXing.Net: ZXing.Net 0.8.0.0: sync with rev. 2393 of the java version improved API, direct support for multiple barcode decoding, wrapper for barcode generating many other improvements and fixes encoder and decoder command line clients demo client for emguCV dev documentation startedScintillaNET: ScintillaNET 2.5.1: This release has been built from the 2.5 branch. Issues closed: Issue # Title 32524 32524 32550 32550 32552 32552 25148 25148 32449 32449 32551 32551 32711 32711 MFCMAPI: August 2012 Release: Build: 15.0.0.1035 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeDocument.Editor: 2013.2: Whats new for Document.Editor 2013.2: New save as Html document Improved Traslate support Minor Bug Fix's, improvements and speed upsPulse: Pulse Beta 5: Whats new in this release? Well to start with we now have Wallbase.cc Authentication! so you can access favorites or NSFW. This version requires .NET 4.0, you probably already have it, but if you don't it's a free and easy download from Microsoft. Pulse can bet set to start on Windows startup now too. The Wallpaper setter has settings now, so you can change the background color of the desktop and the Picture Position (Tile/Center/Fill/etc...) I've switched to Windows Forms instead of WPF...Metro Paint: Metro Paint: Download it now , don't forget to give feedback to me at maitreyavyas@live.com or at my facebook page fb.com/maitreyavyas , Hope you enjoy it.Obelisk - WP7 & Windows 8 MVVM Persistence Library: Obelisk 2.2 Release: This release is built against code shared between WP7 and Windows 8. The setup project only contains the source for WP7, because I can't create an MSI in Windows 8 yet, so for Windows 8, use the source.MiniTwitter: 1.80: MiniTwitter 1.80 ???? ?? .NET Framework 4.5 ?????? ?? .NET Framework 4.5 ????????????? "&" ??????????????????? ???????????????????????? 2 ??????????? ReTweet ?????????????????、In reply to ?????????????? URL ???????????? ??????????????????????????????Droid Explorer: Droid Explorer 0.8.8.6 Beta: Device images are now pulled from DroidExplorer Cloud Service refined some issues with the usage statistics Added a method to get the first available value from a list of property names DroidExplorer.Configuration no longer depends on DroidExplorer.Core.UI (it is actually the other way now) fix to the bootstraper to only try to delete the SDK if it is a "local" sdk, not an existing. no longer support the "local" sdk, you must now select an existing SDK checks for sdk if it was ins...Path Copy Copy: 11.0.1: Bugfix release that corrects the following issue: 11365 If you are using Path Copy Copy in a network environment and use the UNC path commands, it is recommended that you upgrade to this version.ExtAspNet: ExtAspNet v3.1.9.1: +2012-08-18 v3.1.9 -??other/addtab.aspx???JS???BoundField??Tooltip???(Dennis_Liu)。 +??Window?GetShowReference???????????????(︶????、????、???、??~)。 -?????JavaScript?????,??????HTML????????。 -??HtmlNodeBuilder????????????????JavaScript??。 -??????WindowField、LinkButton、HyperLink????????????????????????????。 -???????????grid/griddynamiccolumns2.aspx(?????)。 -?????Type??Reset?????,??????????????????(e??)。 -?????????????????????。 -?????????int,short,double??????????(???)。 +?Window????Ge...Task Card Creator 2010: TaskCardCreator2010 4.0.2.0: What's New: UI/UX improved using a contextual ribbon tab for reports Finishing the "new 4.0 UI" Report template help improved New project branch to support TFS 2012: http://taskcardcreator2012.codeplex.com User interface made more modern (4.0.1.0) Smarter algorithm used for report generation (4.0.1.0) Quality setting added (4.0.1.0) Terms harmonized (4.0.1.0) Miscellaneous optimizations (4.0.1.0) Fixed critical issue introduced in 4.0.0.0 (4.0.1.0)SABnzbd for LCDSmartie: v 0.9.1: - Included right version of Newtonsoft.Json.dll in download No other changesNew ProjectsAnagramme: Jeu en réseau basé sur les anagrammes. Démonstraction technique utilisant WPF, WCF, WF, MEF et le pattern MVVM.ApplicationModel Framework: Ultra light WPF, MEF and MVVM enabled Framework.atfcard: atfcardCaribbean Cinemas: Crear una aplicación para Windows Phone 7.5 o superior, en la cual los usuarios puedan conocer cuales películas se encuentran actualmente en la cartelera.CiberSeguros: Este es un basico ABM usando una empresa de seguros como logica de negociosCLF 3.0: The SharePoint CLF 3.0 toolkit will allow departments and agencies to publish web sites that conform to the new Treasury Board of Canada Secretariat.CodeContrib: C# blog engine using ASP.NET MVC 4.DataGridView UserControl with Paging: this is user control of Windows form in C#. this user control is DatagridView with extended functionality of paging. diploma: ????JVM via COBOL: Sample programs in the isCOBOL dialect of object-aware and object-oriented COBOL, which focus on integrating functionality from the Java APIs into COBOL.MyEFamily: Client/Server software to remove the family from the Social Network and into the Family NetworkMyMVC3: My MVCOMR.Lib.Database - Lightweight WinRT InMemory Database: Lightweight in memory database with depended persistent source.OpenNETXC an unofficial port of the OpenXCPlatform Project to WinRT: An Unofficial WInRT port of the OpenXC Platform to WinRT see http://openxcplatform.com/PowerExtension: PowerExtension is an Open Source extension for Small Basic, a programming language. It adds file, networking, speech, and more!Project Webernet: Published: 8/23/2012ProjectManagementGenius: ????,???Proligence PowerShell VFS: The PowerShell VFS project is an implementation of a virtual file system for PowerShell providers. Using this library you can easily implement advanced PowerSheProxer.Me-Wrapper: Ein Wrapper für die Website Proxer.Me zum anschauen der Streams.Sharepoint Custom Recurrence Field: A recurrence field for SharePoint 2010 similar to the timer recurrence field in Central Admin.SharePoint Document Converter: SharePoint Document Converter solution gives a start on how we can leverage the Word automation Service to convert documents to formats that word can support. This project convert documents of type "docx" or "doc" to any possible file type that word support like to PDF, XPS, DOCX, DOCM, DOC, DOTX, DOTM, DOT, XML, RTF, MHT. This solution helps you to learn following things about SharePoint: - How document conversion happen using Word Automation Service - SharePoint Ribbon customization (H...Small Ticket System: Light CRM / Ticket System LightSwitch / Basic Features: Account/Contact/Contract Management Ticket System with Work History / Notes / TasksSQL Server Keep Alive Service: What is this? A Windows Service that will test if your SQL Server is up and running and writes the status to the Windows EventlogTeamBoard: A team build server displayTest Foreign Vocabulary: Tool helping to learn foreign vocabulary. You import Excel file which contains the vocabulary list and after, you yourself test with tool.testdd08232012git01: sdtesttfs08232012tfs01: sdTFS Kurs 2012: Dette er et undervisningsprosjekt til bruk i Mesaninen 2012. thenewcat: ffffffffffffffvvvvTriviaGame: a trivia game using wcf wpf technologiesUltra Urban: Ultra Urban is a 3d simcity-like game framework written in C# and XNA. It's going to provide some open interfaces for further city simulationUniversity Scheduler: University SchedulerVisual Studio Solution Export Import Addin: Usually we need to share visual studio projects. We take the source code and create zip file and share location with others. If project is not clean then share size will be more. Above manual process can be automated inside visual studio. if we have an add-in to do the same. I have created an addin for Visual Studio 2010 with that all the above manual tasks can be automated. Source code is provided as it is. So you can extend to develop same for other versions of visual studios. Cheers!...Whisper.Web.Providers: Custom web providers by whisper.Including CustomMembershipProvider ,CustomRoleProvider and Sqlserver version(SqlMembershipProvider,SqlRoleProvider).Windows Azure Storage Metrics Client Library: A library of .NET classes useful for the client (consumer) side of Windows Azure Storage Metrics and Windows Azure Diagnostics.WPF Prism Starter Kit: The goal of this project is to deliver a partitioned project skeleton to use prism with WPF.

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  • CodePlex Daily Summary for Friday, March 09, 2012

    CodePlex Daily Summary for Friday, March 09, 2012Popular ReleasesSSH.NET Library: 2012.3.9: There are still few outstanding issues I wanted to include in this release but since its been a while and there are few new features already I decided to create a new release now. New Features Add SOCKS4, SOCKS5 and HTTP Proxy support when connecting to remote server. For silverlight only IP address can be used for server address when using proxy. Add dynamic port forwarding support using ForwardedPortDynamic class. Add new ShellStream class to work with SSH Shell. Add supports for mu...fnr.exe - Find And Replace Tool: 1.0: You can read all about the new features here: Here is the Summary Preview Matches Stats File errors for read/write Support for regular expressions Fixed a bug that required you to press enter to continue after running fnr.exe from command line Context menu to display containing folder or open the file Double click on results row to open the file (similar to double clicking in windows explorer) Binary detection – skip files that are binaryTest Case Import Utilities for Visual Studio 2010 and Visual Studio 11 Beta: V1.2 RTM: This release (V1.2 RTM) includes: Support for connecting to Hosted Team Foundation Server Preview. Support for connecting to Team Foundation Server 11 Beta. Fix to issue with read-only attribute being set for LinksMapping-ReportFile which may have led to problems when saving the report file. Fix to issue with “related links” not being set properly in certain conditions. Fix to ensure that tool works fine when the Excel file contained rich text data. Note: Data is still imported in pl...Audio Pitch & Shift: Audio Pitch And Shift 3.5.0: Modules (mod, xm, it, etc..) supportcallisto: callisto 2.0.19: BUG FIX: Autorun.load() function in scripting now has sandboxed path (Thanks Mikey!) BUG FIX: UserObject.Name property now allows full 20 byte string replacements. FEATURE REQUEST: File.* script functions now allow file extensions.DotNetNuke® Community Edition CMS: 06.01.04: Major Highlights Fixed issue with loading the splash page skin in the login, privacy and terms of use pages Fixed issue when searching for words with special characters in them Fixed redirection issue when the user does not have permissions to access a resource Fixed issue when clearing the cache using the ClearHostCache() function Fixed issue when displaying the site structure in the link to page feature Fixed issue when inline editing the title of modules Fixed issue with ...Mayhem: Mayhem Developer Preview: This is the developer preview of Mayhem. Enjoy!Magelia WebStore Open-source Ecommerce software: Magelia WebStore 1.2: Medium trust compliant lot of small change for medium trust compliance full refactoring of user management refactoring of Client Refactoring of user management Magelia.WebStore.Client no longer reference Magelia.WebStore.Services.Contract Refactoring page category multi parent category added copy category feature added Refactoring page catalog copy catalog feature added variant management improvement ability to define a default variant for a variable product ability to ord...Delta Engine: Delta Engine Beta Preview v0.9.4: v0.9.4 is the release for February 2012, but it was delayed till 2012-03-07 until content generation worked much better for v0.9.4. The main improvements were done on the server side (content generation and improved build support for iOS and Android). v0.9.4 is also the first version everyone can use to deploy their application onto all supported platforms, see Marketplace Licensing for details: http://deltaengine.net/Marketplace Documentation for this version can be found at: http://help.de...PDFsharp - A .NET library for processing PDF: PDFsharp and MigraDoc Foundation 1.32: PDFsharp and MigraDoc Foundation 1.32 is a stable version that fixes a few bugs that were found with version 1.31. Version 1.32 includes solutions for Visual Studio 2010 only (but it should be possible to add the project files to existing solutions for VS 2005 or VS 2008). Users of VS 2005 or VS 2008 can still download version 1.31 with the solutions for those versions that allow them to easily try the samples that are included. While it may create smaller PDF files than version 1.30 because...Terminals: Version 2.0 - Release: Changes since version 1.9a:New art works New usability in Organize favorites window Improved usability of imports/exports and scans Large number of fixes Improvements in single instance mode Comparing November beta 4, this corrects: New application icons Doesn't show Logon error codes Fixed command line arguments exception for single instance mode Fixed detaching of tabs improved usability in detached window Fixed option settings for Capture manager Fixed system tray noti...AutoLoL: AutoLoL v2.1.5: Updated version of Autolol that works with the Fiora patch.MFCMAPI: March 2012 Release: Build: 15.0.0.1032 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeSimple Injector: Simple Injector v1.4.1: This release adds two small improvements to the SimpleInjector.Extensions.dll. No changes have been made to the core library. New features and improvements in this release for the SimpleInjector.Extensions.dll The RegisterManyForOpenGeneric extension methods now accept non-generic decorator, as long as they implement the given open generic service type. GetTypesToRegister methods added to the OpenGenericBatchRegistrationExtensions class which allows to customize the behavior. Note that the...SQL Scriptz Runner: Application: Scriptz Runner source code and applicationPowerGUI Visual Studio Extension: PowerGUI VSX 1.5.2: Added support for PowerGUI 3.2.VidCoder: 1.3.1: Updated HandBrake core to 0.9.6 release (svn 4472). Removed erroneous "None" container choice. Change some logic and help text to stop assuming you have to pick the VIDEO_TS folder for a DVD scan. This should make previewing DVD titles on the Queue Multiple Titles window possible when you've picked the root DVD directory.Google Books Downloader for Windows: Google Books Downloader: Google Books Downloader 1.8ExtAspNet: ExtAspNet v3.1.0: ExtAspNet - ?? ExtJS ??? ASP.NET 2.0 ???,????? AJAX ?????????? ExtAspNet ????? ExtJS ??? ASP.NET 2.0 ???,????? AJAX ??????????。 ExtAspNet ??????? JavaScript,?? CSS,?? UpdatePanel,?? ViewState,?? WebServices ???????。 ??????: IE 7.0, Firefox 3.6, Chrome 3.0, Opera 10.5, Safari 3.0+ ????:Apache License 2.0 (Apache) ??:http://extasp.net/ ??:http://bbs.extasp.net/ ??:http://extaspnet.codeplex.com/ ??:http://sanshi.cnblogs.com/ ????: +2012-03-04 v3.1.0 -??Hidden???????(〓?〓)。 -?PageManager??...AcDown????? - Anime&Comic Downloader: AcDown????? v3.9.1: ?? ●AcDown??????????、??、??????,????1M,????,????,?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。??????AcPlay?????,??????、????????????????。 ● AcDown???????????????????????????,???,???????????????????。 ● AcDown???????C#??,????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ????????????? ??:????????Windows XP???,?????????.NET Framework 2.0???(x86),?????"?????????"??? ??????????????,??????????: ??"AcDo...New ProjectsAngry Birds in 1 Hour: This is a simple "Angry Birds" clone on Windows Phone 7 written in just 1 hour.ascent: ascent capture a capture productascentexpress: ascentexpressASP.NET MVVM Excalibur: ASP.NET MVVM Excalibur Project.this is Web Form base, has a new Binding Expression like WPF MVVM.Azure Virtual Directory: A program (or windows service) that registers a virtual directory on your local machine that is actually a gateway into an Azure Blob service. This will allow you to browse, create, modify and delete files directly in Windows Explorer, through a command prompt, or by any software that would be able to do so (as if it was writing to the local machine). This is not a directory that backs-up to Azure, but is rather *only* on Azure. Developed in C#.ClipFlair: ClipFlair - Foreign Language Learning through Interactive Revoicing and Captioning of ClipsCloudSpotter: CloudSpotter is a Windows Azure sample application that can be used for demo purposes or for learning the basic concepts of cloud application development. CloudSpotter makes it possible to convert, webcam based, cloud pictures to time-lapse video footage. Composing Wcf: Basic library providing a service host and service behavior capable of utilizing MEF for runtime composition of WCF SOAP and REST web services. Library provides composing Hosts and Host Factories for standard ServiceHost types, as well as WebServiceHost (RESTful).convert digit to word upto thousand: convert digit to word upto thousandDAL Generator using Database Application Block 5 and T4 Template: T4 template code for generating data base layer for normal CRUD operation using Repository Pattern. Database application block 5 features are used for generating database call and automatic mapping with DTOeuler 12 problem: euler 12 problemeuler 14 problem: euler 14 problemeuler 19 problem: euler 19 problemeuler 28: euler 28euler 30: euler 30euler 36 problem: euler 36 problemeuler 45: euler 45 problemeuler 52 problem: euler 52 problemeuler21: euler 21euler22: euler 22 problemeuler23: euler 23euler29: euler 29 problemeVet: eVet is a guidance project based on the fictional scenario of a Veterinary System used to monitor pets' medical history. It will be based on Azure and leverage the Worker role and SQL Azure datase to illustrate a multi-tenant cloud-based Pet management system. The ORM layer will be NHibernate and it will be based on the repository design pattern. If you want to help and learn Azure at the same time, I am looking for: - Designers (CSS3, HTML 5, Javascript) - Web Developers (ASP.Net ...Firemap: Generates a html page which displays key performance statistics of chosen computers. FolderHiderNet: FolderHiderNet, its a simple application developed in C#, that let users easily hide and unhide folder on their windows systems. It could be used in USB dispositives.Game of Life for Windows Phone: This is an XNA implementation of Conway's Game of Life for Windows Phone. The game is a grid of cells that live and die based on a simple set of rules. The player can arrange the live and dead cells, and start/stop the cell generation to see how the cells are interrelated. Features: - Save and load games - Start and stop generations - Adjust generation speed - Clear grid - Generate random grid - Sample shapes preloaded as saved games For more information on Conway's Game of Life...Gamoliyas: Gamoliyas is an open source John Conway's Game of Life game totally written in DHTML (JavaScript, CSS and HTML). Uses mouse and keyboard. Very configurable. This cross-platform and cross-browser game was tested under BeOS, Linux, *BSD, Windows and others.Gembed: Transform url into Embed code using javascript. It is developed using jQuery, jQuery templates and javascript. Any contribution would be really apreciated.GIFT: gift appImageLoader iOS: ImageLoader is developed on iOS and it can be used in iPhone and iPad. It try to make application to support image downloading and cache easily. It downloads the image file from url, depended on ASIHttpRequest. And it cache the images into local file.MakkysStackOverflow: Learning how to build stackoverflow like site mysimpleproject: This is my test projectNWN Hak Merging Utility: Mostly automated Hak Merging utility for NWN .hak files.Oasis Text: Oasis Text is a simple, free text editor for Windows. It is written in C# and built with the ScintillaNET editing component. It is a work in progress and is free and open source software. Opds4Net: A .NET Library for Open Publication Distribution System (OPDS) Catalog protocol, a syndication format for electronic publications based on Atom. This project is created to simplify the process of creating an OPDS Catalog in .NET and standardize the result OPDS with least effort. Pratiques: Endroit pour gérer les Pratiques.scooby: This is a scooby dooby doo projectStaffKey: Study Project Projet d'étude Permet le lancement d'un serveur web sur une clé usb.SugataTools: SugataTools are the helper classes that I usually use in my projects.testtom03082012hg05: testtom03082012hg05testtom03082012tfs01: testtom03082012tfs01testtom03082012tfs02: testtom03082012tfs02TNTSerializer: A simple serializer which -Is faster than any other serializer -Does not require ISeriablable - Uses generic cached Reflection wrappers (FAST) -Should serialize ANY structure, no questions asked, no special markup required. -Can handle common attributes -handles optional parameteWholemy.LinkedLists: Wholemy Linked Lists realizationsworkApp: workAppWPF Yahoo Stock API: WPF application using PRISM & MVVM to display stock details using Yahoo API (YPL)

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  • Looking for a FormBuilder that gives me all images and sourcecode to my form

    - by Tracy Anne
    Wow, I started my search this morning and didn't think it would be so difficult to find. I'm just tired of spending hours putting together simple html forms in dreamweaver. I'm an enthusiast web developer mostly focused on php and mysql. I hate CSS and HTML and I'm looking for a simple program that will put a form together for me where I can then completely embed the form into my site. I'll do all of the programming to attach it to my database I just need the form and images. I've looked into jotform, wufoo, 123forms etc but it seems like they all want to keep my form on their servers in one way or another. It looked like jotform had a developers version but $450 bucks is a little steep for a part timer like me. Is there no simple software out there that will throw a nice stylized form together for me?

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  • How to avoid HDD spin up at system start? (Ubuntu from SSD)

    - by Oliver
    Thanks to hdparm -B1 /dev/sdb my HDD does no longer spin up when powered up on boot. But after completing the BIOS POST messages and starting Ubuntu the HDD gets a signal over the SATA data cable and spins up. Leaving the data cable (but still with plugged in SATA power cable) let the system boot up completely from my SSD without spinning up the HDD. What causes the HDD to spin up? Maybe Grub2? Edit: nope, doesn't seem to be Grub2 that spins up the drive. I just set up Grub to show its menu without timer. Nothings happens until I hit the Ubuntu standard boot option, then a few seconds later the drive spins up.

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  • Wireless not working on Dell XPS 17 after installing 12.04

    - by user60622
    I (linux newbie) have a Dell XPS 17 and tried to install Ubuntu 12.04. After installation all WLAN accesspoints near are detected. But I can not connect (but I am able to connect with other computers as well as with Dell XPS 17 under windows). Outputs: iwconfig lo no wireless extensions. wlan0 IEEE 802.11bg ESSID:"LerchenPoint" Mode:Managed Frequency:2.412 GHz Access Point: 58:6D:8F:A0:2D:58 Bit Rate=1 Mb/s Tx-Power=14 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-37 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:19 Missed beacon:0 eth0 no wireless extensions. sudo lshw -class network *-network description: Wireless interface product: Centrino Wireless-N 1000 vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlan0 version: 00 serial: 00:26:c7:99:98:28 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-24-generic firmware=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bg resources: irq:50 memory:f0400000-f0401fff *-network description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:0a:00.0 logical name: eth0 version: 06 serial: f0:4d:a2:56:e3:94 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw ip=192.168.0.123 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:47 ioport:6000(size=256) memory:f0a04000-f0a04fff memory:f0a00000-f0a03fff dmesg | grep iwl [ 10.157531] iwlwifi 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 10.157561] iwlwifi 0000:04:00.0: setting latency timer to 64 [ 10.157598] iwlwifi 0000:04:00.0: pci_resource_len = 0x00002000 [ 10.157599] iwlwifi 0000:04:00.0: pci_resource_base = ffffc90011090000 [ 10.157601] iwlwifi 0000:04:00.0: HW Revision ID = 0x0 [ 10.157731] iwlwifi 0000:04:00.0: irq 50 for MSI/MSI-X [ 10.157834] iwlwifi 0000:04:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C [ 10.157976] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 10.179772] iwlwifi 0000:04:00.0: device EEPROM VER=0x15d, CALIB=0x6 [ 10.179775] iwlwifi 0000:04:00.0: Device SKU: 0X50 [ 10.179777] iwlwifi 0000:04:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3 [ 10.179796] iwlwifi 0000:04:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels [ 10.574728] iwlwifi 0000:04:00.0: loaded firmware version 39.31.5.1 build 35138 [ 10.726409] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' [ 19.714132] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 19.777862] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 2251.603089] iwlwifi 0000:04:00.0: PCI INT A disabled [ 2266.578350] iwlwifi 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 2266.578399] iwlwifi 0000:04:00.0: setting latency timer to 64 [ 2266.578435] iwlwifi 0000:04:00.0: pci_resource_len = 0x00002000 [ 2266.578437] iwlwifi 0000:04:00.0: pci_resource_base = ffffc90011090000 [ 2266.578439] iwlwifi 0000:04:00.0: HW Revision ID = 0x0 [ 2266.578704] iwlwifi 0000:04:00.0: irq 50 for MSI/MSI-X [ 2266.578808] iwlwifi 0000:04:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C [ 2266.578916] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 2266.600709] iwlwifi 0000:04:00.0: device EEPROM VER=0x15d, CALIB=0x6 [ 2266.600712] iwlwifi 0000:04:00.0: Device SKU: 0X50 [ 2266.600713] iwlwifi 0000:04:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3 [ 2266.600727] iwlwifi 0000:04:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels [ 2266.605978] iwlwifi 0000:04:00.0: loaded firmware version 39.31.5.1 build 35138 [ 2266.606331] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' [ 2266.614179] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 2266.681541] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S Solutions I tried: rfkill list all 0: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf options iwlwifi 11n_disable=1 sudo modprobe -rfv iwlwifi WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release. rmmod /lib/modules/3.2.0-24-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko rmmod /lib/modules/3.2.0-24-generic/kernel/net/mac80211/mac80211.ko rmmod /lib/modules/3.2.0-24-generic/kernel/net/wireless/cfg80211.ko sudo modprobe iwlwifi WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release. replacing iwlwifi-1000-5.ucode (current driver) against iwlwifi-1000-3.ucode sudo jockey-gtk: (jockey-gtk:2493): Gtk-CRITICAL **: gtk_icon_set_render_icon_pixbuf: assertion icon_set != NULL' failed (jockey-gtk:2493): Gtk-CRITICAL **: gtk_icon_set_render_icon_pixbuf: assertion icon_set != NULL' failed nothing is listet in "Additional drivers" (german: "Zusätzliche Treiber"). gksudo gedit /etc/modprobe.d/blacklist.conf add "blacklist acer_wmi" Any help would be appreciated very much. Thanks!!

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  • lubuntu - Sound card detected but no sound

    - by CookieMonster
    I installed Lubuntu 12.10 on my old laptop (Sharp Mebius PC-MR80J), but sound does not work. Here are things I tried. aplay -l does not output anything. When I run alsamixer, I see only one bar that says "Beep". I installed pavucontrol, pulseaudio, pulseaudio-utils and libgtk-3-0 and checked output devices, but I only see "Dummy ouput" and there is no hardware output devices. cat /proc/asound/cards returns the following. 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfeb38000 irq 40 cat /proc/asound/devices outputs the following. 1: : sequencer 2: [ 0- 1]: hardware dependent 3: [ 0- 0]: hardware dependent 4: [ 0] : control 33: : timer The laptop was running Windows XP before and sound (both input and outpu) was working. What can I do now?

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  • can't login to new install of SQL 2008 x64 via SSMS

    - by tpcolson
    I have performed a fresh install of SQL 2008 x64 on a fresh install of Server 2008 R2 x64 in an AD environment. Upon install completion, I cannot login to the SQL Instance via SSMS, with the following error: Login failed for user domain\user. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: ]. Background: the server is correctly joined to the AD Domain, the install was performed with defaults, windows authentication only (per organizational rules), the SQL install completes with no errors, domain\user was added as SQL Amin during setup account provisioning, I am logged into to console as domain\user when this error occurs, windows firewall is OFF, UAC is ON (an will never be turned off in accordance with organizational policy). To troubleshoot this error I have tried: Run SSMS as administrator: fail; Start SQL in single user mode, run SSMS: fail Start SQL in single user mode, run SSMS as administrator: Success Start SQL in single user mode, run SSMS as administrator, remove domain\user from sysadmin group, re-add, run SSMS: fail; Any combination and permutation of log off and log on, reboot, and chant gregorian prayers: fail; Reimage server with 2008 x64, slipstream SP2 into SQL 2008 install, all above troubleshooting steps are repeatable exactly, so I've narrowed this down to not being a SP issue; (this is NOT 2008 SQL R2) Any suggestion on how to grant management access to this fresh install of SQL 2008 via SSMS? Our organizational policy is no console access to servers, management will be done via management tools intalled on client workstations. domain\user is a group of 8 users whom will have SSMS installed on workstations. However, we can't even access SQL via SSMS from the console! We cannot deploy this in an environment where these 8 users will have to sneak into the server closet on the weekends and have console access to SQL and run SSMS as administrator. EDIT: domain\group is a replacement for the actual object; the queries indicate that domain\group does indeed have the right privelges....!?! 1> EXEC xp_logininfo 'domain\group' go account name type privilege mapped login name permission path 'domain\group' group admin 'domain\group' NULL xp_logininfo seems to show 'domain\group' in the sql admin group; 1> SELECT A.name AS 'Role', B.name AS 'Login' 3> FROM sys.server_role_members C 5> INNER JOIN sys.server_principals A ON A.principal_id = C.role_principal_id 7> INNER JOIN sys.server_principals B ON B.principal_id = C.member_principal _id 9> go Role Login sysadmin sa sysadmin NT AUTHORITY\SYSTEM sysadmin NT SERVICE\MSSQLSERVER sysadmin NT SERVICE\SQLSERVERAGENT sysadmin domain\group 1> SELECT PRINCIPAL_ID AS [Principal ID], 2> NAME AS [User], 3> TYPE_DESC AS [Type Description], 4> IS_DISABLED AS [Status] 5> FROM sys.server_principals 6> GO Principal ID User Type Description Status ------------ ------------------------------------------------------------------- ------------------------------------------------------------- ------------------ ------------------------------------------ ------ 1 sa SQL_LOGIN 1 2 public SERVER_ROLE 0 3 sysadmin SERVER_ROLE 0 4 securityadmin SERVER_ROLE 0 5 serveradmin SERVER_ROLE 0 6 setupadmin SERVER_ROLE 0 7 processadmin SERVER_ROLE 0 8 diskadmin SERVER_ROLE 0 9 dbcreator SERVER_ROLE 0 10 bulkadmin SERVER_ROLE 0 101 ##MS_SQLResourceSigningCertificate## CERTIFICATE_MAPPED _LOGIN 0 102 ##MS_SQLReplicationSigningCertificate## CERTIFICATE_MAPPED _LOGIN 0 103 ##MS_SQLAuthenticatorCertificate## CERTIFICATE_MAPPED _LOGIN 0 105 ##MS_PolicySigningCertificate## CERTIFICATE_MAPPED _LOGIN 0 257 ##MS_PolicyTsqlExecutionLogin## SQL_LOGIN 1 259 NT AUTHORITY\SYSTEM WINDOWS_LOGIN 0 260 NT SERVICE\MSSQLSERVER WINDOWS_GROUP 0 262 NT SERVICE\SQLSERVERAGENT WINDOWS_GROUP 0 263 ##MS_PolicyEventProcessingLogin## SQL_LOGIN 1 264 ##MS_AgentSigningCertificate## CERTIFICATE_MAPPED _LOGIN 0 265 domain\group WINDOWS_GROUP 0 (21 rows affected)

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  • How to take a screenshot every n second?

    - by Seppo Erviälä
    What software can I use to take screenshots with a set interval? I'd like to take screenshots every 2 second or so. Command-line and GUI are both ok. I'd prefer software that can also resize and compress each screenshot. EDIT: What I realized I really wanted to do was take a screenshot and a picture with webcam at the same time. I ended up doing some python: import threading import os def capture(i): i += 1 threading.Timer(2.0, printit, [i]).start() fill = str(i).zfill(5) os.system("scrot scrot-%s.jpg" % fill) os.system("streamer -o streamer-%s.jpeg -s 320x240 -j 100" % fill) capture(0)

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  • Login timeout disable?

    - by Sk606
    How can I disable automatic timeout entries in the login screen? Allow me to explain. My typical experience goes something like this: I put my laptop to sleep, then wake it. When it wakes, it comes up with the login screen. I type in my password and it will usually reject it, with a message indicating the login timer has expired. I then enter my password a second time and it logs in. Not the end of the world, but annoying nonetheless. Any suggestions?

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  • Backlit keyboard on Toshiba Satellite P755-S5184 doesn't work in Ubuntu 12.04

    - by chrisabner23
    I have the keyboard backlight turned on in bios to timer setting (1 second). When laptop boots the backlight works, but once ubuntu begins to load the backlights turn off. There is a function key combo that is supposed to turn it on (Fn +Z), hitting that brings up a notification balloon showing the backlit keyboard icon but it is grayed out. I tried using KeyTouch to try and get the backlight working but my laptop model isn't on the list. I'm new to Ubuntu, and have been searching the web and can't seem to find any answers that will work for my particular situation. Any information would be MUCH appreciated. Thanks!

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  • How to Stream Media Files From any PC to Your PlayStation 3

    - by Zainul Franciscus
    Have you ever wished that you could stream video files from your computer over to your TV without actually hooking the two directly together? If you’ve got a PlayStation 3, you’re in luck, because that’s today’s geek lesson. If you’re wondering how to rip dvds to your PC, we’ve got you covered with an article on the subject, but you can stream video files that you’ve recorded yourself, or downloaded from somewhere. Image by playstation-themes Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines Four Awesome TRON Legacy Themes for Chrome and Iron Anger is Illogical – Old School Style Instructional Video [Star Trek Mashup] Get the Old Microsoft Paint UI Back in Windows 7 Relax and Sleep Is a Soothing Sleep Timer Google Rolls Out Two-Factor Authentication Peaceful Early Morning by the Riverside Wallpaper

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  • Diving into OpenStack Network Architecture - Part 2 - Basic Use Cases

    - by Ronen Kofman
      rkofman Normal rkofman 4 138 2014-06-05T03:38:00Z 2014-06-05T05:04:00Z 3 2735 15596 Oracle Corporation 129 36 18295 12.00 Clean Clean false false false false EN-US X-NONE HE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi; mso-bidi-language:AR-SA;} In the previous post we reviewed several network components including Open vSwitch, Network Namespaces, Linux Bridges and veth pairs. In this post we will take three simple use cases and see how those basic components come together to create a complete SDN solution in OpenStack. With those three use cases we will review almost the entire network setup and see how all the pieces work together. The use cases we will use are: 1.       Create network – what happens when we create network and how can we create multiple isolated networks 2.       Launch a VM – once we have networks we can launch VMs and connect them to networks. 3.       DHCP request from a VM – OpenStack can automatically assign IP addresses to VMs. This is done through local DHCP service controlled by OpenStack Neutron. We will see how this service runs and how does a DHCP request and response look like. In this post we will show connectivity, we will see how packets get from point A to point B. We first focus on how a configured deployment looks like and only later we will discuss how and when the configuration is created. Personally I found it very valuable to see the actual interfaces and how they connect to each other through examples and hands on experiments. After the end game is clear and we know how the connectivity works, in a later post, we will take a step back and explain how Neutron configures the components to be able to provide such connectivity.  We are going to get pretty technical shortly and I recommend trying these examples on your own deployment or using the Oracle OpenStack Tech Preview. Understanding these three use cases thoroughly and how to look at them will be very helpful when trying to debug a deployment in case something does not work. Use case #1: Create Network Create network is a simple operation it can be performed from the GUI or command line. When we create a network in OpenStack the network is only available to the tenant who created it or it could be defined as “shared” and then it can be used by all tenants. A network can have multiple subnets but for this demonstration purpose and for simplicity we will assume that each network has exactly one subnet. Creating a network from the command line will look like this: # neutron net-create net1 Created a new network: +---------------------------+--------------------------------------+ | Field                     | Value                                | +---------------------------+--------------------------------------+ | admin_state_up            | True                                 | | id                        | 5f833617-6179-4797-b7c0-7d420d84040c | | name                      | net1                                 | | provider:network_type     | vlan                                 | | provider:physical_network | default                              | | provider:segmentation_id  | 1000                                 | | shared                    | False                                | | status                    | ACTIVE                               | | subnets                   |                                      | | tenant_id                 | 9796e5145ee546508939cd49ad59d51f     | +---------------------------+--------------------------------------+ Creating a subnet for this network will look like this: # neutron subnet-create net1 10.10.10.0/24 Created a new subnet: +------------------+------------------------------------------------+ | Field            | Value                                          | +------------------+------------------------------------------------+ | allocation_pools | {"start": "10.10.10.2", "end": "10.10.10.254"} | | cidr             | 10.10.10.0/24                                  | | dns_nameservers  |                                                | | enable_dhcp      | True                                           | | gateway_ip       | 10.10.10.1                                     | | host_routes      |                                                | | id               | 2d7a0a58-0674-439a-ad23-d6471aaae9bc           | | ip_version       | 4                                              | | name             |                                                | | network_id       | 5f833617-6179-4797-b7c0-7d420d84040c           | | tenant_id        | 9796e5145ee546508939cd49ad59d51f               | +------------------+------------------------------------------------+ We now have a network and a subnet, on the network topology view this looks like this: Now let’s dive in and see what happened under the hood. Looking at the control node we will discover that a new namespace was created: # ip netns list qdhcp-5f833617-6179-4797-b7c0-7d420d84040c   The name of the namespace is qdhcp-<network id> (see above), let’s look into the namespace and see what’s in it: # ip netns exec qdhcp-5f833617-6179-4797-b7c0-7d420d84040c ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00     inet 127.0.0.1/8 scope host lo     inet6 ::1/128 scope host        valid_lft forever preferred_lft forever 12: tap26c9b807-7c: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN     link/ether fa:16:3e:1d:5c:81 brd ff:ff:ff:ff:ff:ff     inet 10.10.10.3/24 brd 10.10.10.255 scope global tap26c9b807-7c     inet6 fe80::f816:3eff:fe1d:5c81/64 scope link        valid_lft forever preferred_lft forever   We see two interfaces in the namespace, one is the loopback and the other one is an interface called “tap26c9b807-7c”. This interface has the IP address of 10.10.10.3 and it will also serve dhcp requests in a way we will see later. Let’s trace the connectivity of the “tap26c9b807-7c” interface from the namespace.  First stop is OVS, we see that the interface connects to bridge  “br-int” on OVS: # ovs-vsctl show 8a069c7c-ea05-4375-93e2-b9fc9e4b3ca1     Bridge "br-eth2"         Port "br-eth2"             Interface "br-eth2"                 type: internal         Port "eth2"             Interface "eth2"         Port "phy-br-eth2"             Interface "phy-br-eth2"     Bridge br-ex         Port br-ex             Interface br-ex                 type: internal     Bridge br-int         Port "int-br-eth2"             Interface "int-br-eth2"         Port "tap26c9b807-7c"             tag: 1             Interface "tap26c9b807-7c"                 type: internal         Port br-int             Interface br-int                 type: internal     ovs_version: "1.11.0"   In the picture above we have a veth pair which has two ends called “int-br-eth2” and "phy-br-eth2", this veth pair is used to connect two bridge in OVS "br-eth2" and "br-int". In the previous post we explained how to check the veth connectivity using the ethtool command. It shows that the two are indeed a pair: # ethtool -S int-br-eth2 NIC statistics:      peer_ifindex: 10 . .   #ip link . . 10: phy-br-eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 . . Note that “phy-br-eth2” is connected to a bridge called "br-eth2" and one of this bridge's interfaces is the physical link eth2. This means that the network which we have just created has created a namespace which is connected to the physical interface eth2. eth2 is the “VM network” the physical interface where all the virtual machines connect to where all the VMs are connected. About network isolation: OpenStack supports creation of multiple isolated networks and can use several mechanisms to isolate the networks from one another. The isolation mechanism can be VLANs, VxLANs or GRE tunnels, this is configured as part of the initial setup in our deployment we use VLANs. When using VLAN tagging as an isolation mechanism a VLAN tag is allocated by Neutron from a pre-defined VLAN tags pool and assigned to the newly created network. By provisioning VLAN tags to the networks Neutron allows creation of multiple isolated networks on the same physical link.  The big difference between this and other platforms is that the user does not have to deal with allocating and managing VLANs to networks. The VLAN allocation and provisioning is handled by Neutron which keeps track of the VLAN tags, and responsible for allocating and reclaiming VLAN tags. In the example above net1 has the VLAN tag 1000, this means that whenever a VM is created and connected to this network the packets from that VM will have to be tagged with VLAN tag 1000 to go on this particular network. This is true for namespace as well, if we would like to connect a namespace to a particular network we have to make sure that the packets to and from the namespace are correctly tagged when they reach the VM network. In the example above we see that the namespace interface “tap26c9b807-7c” has vlan tag 1 assigned to it, if we examine OVS we see that it has flows which modify VLAN tag 1 to VLAN tag 1000 when a packet goes to the VM network on eth2 and vice versa. We can see this using the dump-flows command on OVS for packets going to the VM network we see the modification done on br-eth2: #  ovs-ofctl dump-flows br-eth2 NXST_FLOW reply (xid=0x4):  cookie=0x0, duration=18669.401s, table=0, n_packets=857, n_bytes=163350, idle_age=25, priority=4,in_port=2,dl_vlan=1 actions=mod_vlan_vid:1000,NORMAL  cookie=0x0, duration=165108.226s, table=0, n_packets=14, n_bytes=1000, idle_age=5343, hard_age=65534, priority=2,in_port=2 actions=drop  cookie=0x0, duration=165109.813s, table=0, n_packets=1671, n_bytes=213304, idle_age=25, hard_age=65534, priority=1 actions=NORMAL   For packets coming from the interface to the namespace we see the following modification: #  ovs-ofctl dump-flows br-int NXST_FLOW reply (xid=0x4):  cookie=0x0, duration=18690.876s, table=0, n_packets=1610, n_bytes=210752, idle_age=1, priority=3,in_port=1,dl_vlan=1000 actions=mod_vlan_vid:1,NORMAL  cookie=0x0, duration=165130.01s, table=0, n_packets=75, n_bytes=3686, idle_age=4212, hard_age=65534, priority=2,in_port=1 actions=drop  cookie=0x0, duration=165131.96s, table=0, n_packets=863, n_bytes=160727, idle_age=1, hard_age=65534, priority=1 actions=NORMAL   To summarize we can see that when a user creates a network Neutron creates a namespace and this namespace is connected through OVS to the “VM network”. OVS also takes care of tagging the packets from the namespace to the VM network with the correct VLAN tag and knows to modify the VLAN for packets coming from VM network to the namespace. Now let’s see what happens when a VM is launched and how it is connected to the “VM network”. Use case #2: Launch a VM Launching a VM can be done from Horizon or from the command line this is how we do it from Horizon: Attach the network: And Launch Once the virtual machine is up and running we can see the associated IP using the nova list command : # nova list +--------------------------------------+--------------+--------+------------+-------------+-----------------+ | ID                                   | Name         | Status | Task State | Power State | Networks        | +--------------------------------------+--------------+--------+------------+-------------+-----------------+ | 3707ac87-4f5d-4349-b7ed-3a673f55e5e1 | Oracle Linux | ACTIVE | None       | Running     | net1=10.10.10.2 | +--------------------------------------+--------------+--------+------------+-------------+-----------------+ The nova list command shows us that the VM is running and that the IP 10.10.10.2 is assigned to this VM. Let’s trace the connectivity from the VM to VM network on eth2 starting with the VM definition file. The configuration files of the VM including the virtual disk(s), in case of ephemeral storage, are stored on the compute node at/var/lib/nova/instances/<instance-id>/. Looking into the VM definition file ,libvirt.xml,  we see that the VM is connected to an interface called “tap53903a95-82” which is connected to a Linux bridge called “qbr53903a95-82”: <interface type="bridge">       <mac address="fa:16:3e:fe:c7:87"/>       <source bridge="qbr53903a95-82"/>       <target dev="tap53903a95-82"/>     </interface>   Looking at the bridge using the brctl show command we see this: # brctl show bridge name     bridge id               STP enabled     interfaces qbr53903a95-82          8000.7e7f3282b836       no              qvb53903a95-82                                                         tap53903a95-82    The bridge has two interfaces, one connected to the VM (“tap53903a95-82 “) and another one ( “qvb53903a95-82”) connected to “br-int” bridge on OVS: # ovs-vsctl show 83c42f80-77e9-46c8-8560-7697d76de51c     Bridge "br-eth2"         Port "br-eth2"             Interface "br-eth2"                 type: internal         Port "eth2"             Interface "eth2"         Port "phy-br-eth2"             Interface "phy-br-eth2"     Bridge br-int         Port br-int             Interface br-int                 type: internal         Port "int-br-eth2"             Interface "int-br-eth2"         Port "qvo53903a95-82"             tag: 3             Interface "qvo53903a95-82"     ovs_version: "1.11.0"   As we showed earlier “br-int” is connected to “br-eth2” on OVS using the veth pair int-br-eth2,phy-br-eth2 and br-eth2 is connected to the physical interface eth2. The whole flow end to end looks like this: VM è tap53903a95-82 (virtual interface)è qbr53903a95-82 (Linux bridge) è qvb53903a95-82 (interface connected from Linux bridge to OVS bridge br-int) è int-br-eth2 (veth one end) è phy-br-eth2 (veth the other end) è eth2 physical interface. The purpose of the Linux Bridge connecting to the VM is to allow security group enforcement with iptables. Security groups are enforced at the edge point which are the interface of the VM, since iptables nnot be applied to OVS bridges we use Linux bridge to apply them. In the future we hope to see this Linux Bridge going away rules.  VLAN tags: As we discussed in the first use case net1 is using VLAN tag 1000, looking at OVS above we see that qvo41f1ebcf-7c is tagged with VLAN tag 3. The modification from VLAN tag 3 to 1000 as we go to the physical network is done by OVS  as part of the packet flow of br-eth2 in the same way we showed before. To summarize, when a VM is launched it is connected to the VM network through a chain of elements as described here. During the packet from VM to the network and back the VLAN tag is modified. Use case #3: Serving a DHCP request coming from the virtual machine In the previous use cases we have shown that both the namespace called dhcp-<some id> and the VM end up connecting to the physical interface eth2  on their respective nodes, both will tag their packets with VLAN tag 1000.We saw that the namespace has an interface with IP of 10.10.10.3. Since the VM and the namespace are connected to each other and have interfaces on the same subnet they can ping each other, in this picture we see a ping from the VM which was assigned 10.10.10.2 to the namespace: The fact that they are connected and can ping each other can become very handy when something doesn’t work right and we need to isolate the problem. In such case knowing that we should be able to ping from the VM to the namespace and back can be used to trace the disconnect using tcpdump or other monitoring tools. To serve DHCP requests coming from VMs on the network Neutron uses a Linux tool called “dnsmasq”,this is a lightweight DNS and DHCP service you can read more about it here. If we look at the dnsmasq on the control node with the ps command we see this: dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --interface=tap26c9b807-7c --except-interface=lo --pid-file=/var/lib/neutron/dhcp/5f833617-6179-4797-b7c0-7d420d84040c/pid --dhcp-hostsfile=/var/lib/neutron/dhcp/5f833617-6179-4797-b7c0-7d420d84040c/host --dhcp-optsfile=/var/lib/neutron/dhcp/5f833617-6179-4797-b7c0-7d420d84040c/opts --leasefile-ro --dhcp-range=tag0,10.10.10.0,static,120s --dhcp-lease-max=256 --conf-file= --domain=openstacklocal The service connects to the tap interface in the namespace (“--interface=tap26c9b807-7c”), If we look at the hosts file we see this: # cat  /var/lib/neutron/dhcp/5f833617-6179-4797-b7c0-7d420d84040c/host fa:16:3e:fe:c7:87,host-10-10-10-2.openstacklocal,10.10.10.2   If you look at the console output above you can see the MAC address fa:16:3e:fe:c7:87 which is the VM MAC. This MAC address is mapped to IP 10.10.10.2 and so when a DHCP request comes with this MAC dnsmasq will return the 10.10.10.2.If we look into the namespace at the time we initiate a DHCP request from the VM (this can be done by simply restarting the network service in the VM) we see the following: # ip netns exec qdhcp-5f833617-6179-4797-b7c0-7d420d84040c tcpdump -n 19:27:12.191280 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:fe:c7:87, length 310 19:27:12.191666 IP 10.10.10.3.bootps > 10.10.10.2.bootpc: BOOTP/DHCP, Reply, length 325   To summarize, the DHCP service is handled by dnsmasq which is configured by Neutron to listen to the interface in the DHCP namespace. Neutron also configures dnsmasq with the combination of MAC and IP so when a DHCP request comes along it will receive the assigned IP. Summary In this post we relied on the components described in the previous post and saw how network connectivity is achieved using three simple use cases. These use cases gave a good view of the entire network stack and helped understand how an end to end connection is being made between a VM on a compute node and the DHCP namespace on the control node. One conclusion we can draw from what we saw here is that if we launch a VM and it is able to perform a DHCP request and receive a correct IP then there is reason to believe that the network is working as expected. We saw that a packet has to travel through a long list of components before reaching its destination and if it has done so successfully this means that many components are functioning properly. In the next post we will look at some more sophisticated services Neutron supports and see how they work. We will see that while there are some more components involved for the most part the concepts are the same. @RonenKofman

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  • How do I cancel a time-delayed screenshot?

    - by coversnail
    I'm using the default screenshot application that comes with Ubuntu gnome-screenshot When I was using it earlier to take screenshots of the lock screen I had set a long time delay, but forgot to change it back after I'd finished. When I next took a timed screenshot I had to wait a long time for it to take because the delay was still set so long. Clicking the icon to relaunch the screenshot application has no effect whilst the timer is in effect, I imagine there is probably a simple terminal command to shut down an application, but I don't know it! Is there a way to do this?

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  • Are there any good music mixers available, equivalent to Windows "MP3 Tunes"?

    - by RobinJ
    In Windows my dad used to have a program called MP3 Tunes. I have tried running it with Wine, and it worked. But strange things kept happening to the program, so it's not a reliable way to play music. Basically I just want to have 2 players (in a single window) with these features: Preloading tracks in a player without immediately starting them. Fading from one track to the other. A timer on each player. These features are also desired, but not required: Microphone input. Prelistening before loading a song in a player (through a seperate sound card). Pitch/Tempo control. Just being able to browse folders in the filesystem (without things like a music library). Here are some screenshots of the program to clarify what I'm looking for:

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  • GameplayScreen does not contain a definition for GraphicsDevice

    - by Dave Voyles
    Long story short: I'm trying to intergrate my game with Microsoft's Game State Management. In doing so I've run into some errors, and the latest one is in the title. I'm not able to display my HUD for the reasons listed above. Previously, I had much of my code in my Game.cs class, but the GSM has a bit of it in Game1, and most of what you have drawn for the main screen in your GameplayScreen class, and that is what is causing confusion on my part. I've created an instance of the GameplayScreen class to be used in the HUD class (as you can see below). Before integrating with the GSM however, I created an instance of my Game class, and all worked fine. It seems that I need to define my graphics device somewhere, but I am not sure of where exactly. I've left some code below to help you understand. public class GameStateManagementGame : Microsoft.Xna.Framework.Game { #region Fields GraphicsDeviceManager graphics; ScreenManager screenManager; // Creates a new intance, which is used in the HUD class public static Game Instance; // By preloading any assets used by UI rendering, we avoid framerate glitches // when they suddenly need to be loaded in the middle of a menu transition. static readonly string[] preloadAssets = { "gradient", }; #endregion #region Initialization /// <summary> /// The main game constructor. /// </summary> public GameStateManagementGame() { Content.RootDirectory = "Content"; graphics = new GraphicsDeviceManager(this); graphics.PreferredBackBufferWidth = 1280; graphics.PreferredBackBufferHeight = 720; graphics.IsFullScreen = false; graphics.ApplyChanges(); // Create the screen manager component. screenManager = new ScreenManager(this); Components.Add(screenManager); // Activate the first screens. screenManager.AddScreen(new BackgroundScreen(), null); //screenManager.AddScreen(new MainMenuScreen(), null); screenManager.AddScreen(new PressStartScreen(), null); } namespace Pong { public class HUD { public void Update(GameTime gameTime) { // Used in the Draw method titleSafeRectangle = new Rectangle (GameplayScreen.Instance.GraphicsDevice.Viewport.TitleSafeArea.X, GameplayScreen.Instance.GraphicsDevice.Viewport.TitleSafeArea.Y, GameplayScreen.Instance.GraphicsDevice.Viewport.TitleSafeArea.Width, GameplayScreen.Instance.GraphicsDevice.Viewport.TitleSafeArea.Height); } } } class GameplayScreen : GameScreen { #region Fields ContentManager content; public static GameStates gamestate; private GraphicsDeviceManager graphics; public int screenWidth; public int screenHeight; private Texture2D backgroundTexture; private SpriteBatch spriteBatch; private Menu menu; private SpriteFont arial; private HUD hud; Animation player; // Creates a new intance, which is used in the HUD class public static GameplayScreen Instance; public GameplayScreen() { TransitionOnTime = TimeSpan.FromSeconds(1.5); TransitionOffTime = TimeSpan.FromSeconds(0.5); } protected void Initialize() { lastScored = false; menu = new Menu(); resetTimer = 0; resetTimerInUse = true; ball = new Ball(content, new Vector2(screenWidth, screenHeight)); SetUpMulti(); input = new Input(); hud = new HUD(); // Places the powerup animation inside of the surrounding box // Needs to be cleaned up, instead of using hard pixel values player = new Animation(content.Load<Texture2D>(@"gfx/powerupSpriteSheet"), new Vector2(103, 44), 64, 64, 4, 5); // Used by for the Powerups random = new Random(); vec = new Vector2(100, 50); vec2 = new Vector2(100, 100); promptVec = new Vector2(50, 25); timer = 10000.0f; // Starting value for the cooldown for the powerup timer timerVector = new Vector2(10, 10); //JEP - one time creation of powerup objects playerOnePowerup = new Powerup(); playerOnePowerup.Activated += PowerupActivated; playerOnePowerup.Deactivated += PowerupDeactivated; playerTwoPowerup = new Powerup(); playerTwoPowerup.Activated += PowerupActivated; playerTwoPowerup.Deactivated += PowerupDeactivated; //JEP - moved from events since these only need set once activatedVec = new Vector2(100, 125); deactivatedVec = new Vector2(100, 150); powerupReady = false; }

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  • Increase the size of a memory mapped file

    - by sandun dhammika
    I am maintaning a memory mapped file to store my tree like datastructure. When I'm updating the datastructure ,I got this problem. The file is limited on it's size and can't be too long or too small. I have a methods like void mapfile_insert_record(RECORD* /* record*/); void mapfile_modify_record(RECORD* /* record*/); Both operations could lead to exceed the space which is free on memory file. How do I overcome this? What strategy I should use. calculate whether it requires to exceed the file as a pre-condition on both methods. Dynamically exceed it , for a example manage a timer and constantly polling file for it's free avaliable size and then automatically extend it. Any ideas or patterns to overcome this problem?

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  • Desktop Fun: Fantasy Warriors Wallpaper Collection

    - by Asian Angel
    Whether they are defending their homelands and the innocent, seeking fame and fortune, or out to conquer and plunder these fantasy warriors will add a nice bit of adventure to your desktop. Get ready to journey into other realms with our Fantasy Warriors Wallpaper collection Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines Four Awesome TRON Legacy Themes for Chrome and Iron Anger is Illogical – Old School Style Instructional Video [Star Trek Mashup] Get the Old Microsoft Paint UI Back in Windows 7 Relax and Sleep Is a Soothing Sleep Timer Google Rolls Out Two-Factor Authentication Peaceful Early Morning by the Riverside Wallpaper

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  • Office 2010: It&rsquo;s not just DOC(X) and XLS(X)

    - by andrewbrust
    Office 2010 has released to manufacturing.  The bits have left the (product team’s) building.  Will you upgrade? This version of Office is officially numbered 14, a designation that correlates with the various releases, through the years, of Microsoft Word.  There were six major versions of Word for DOS, during whose release cycles came three 16-bit Windows versions.  Then, starting with Word 95 and counting through Word 2007, there have been six more versions – all for the 32-bit Windows platform.  Skip version 13 to ward off folksy bad luck (and, perhaps, the bugs that could come with it) and that brings us to version 14, which includes implementations for both 32- and 64-bit Windows platforms.  We’ve come a long way baby.  Or have we? As it does every three years or so, debate will now start to rage on over whether we need a “14th” version the PC platform’s standard word processor, or a “13th” version of the spreadsheet.  If you accept the premise of that question, then you may be on a slippery slope toward answering it in the negative.  Thing is, that premise is valid for certain customers and not others. The Microsoft Office product has morphed from one that offered core word processing, spreadsheet, presentation and email functionality to a suite of applications that provides unique, new value-added features, and even whole applications, in the context of those core services.  The core apps thus grow in mission: Excel is a BI tool.  Word is a collaborative editorial system for the production of publications.  PowerPoint is a media production platform for for live presentations and, increasingly, for delivering more effective presentations online.  Outlook is a time and task management system.  Access is a rich client front-end for data-driven self-service SharePoint applications.  OneNote helps you capture ideas, corral random thoughts in a semi-structured way, and then tie them back to other, more rigidly structured, Office documents. Google Docs and other cloud productivity platforms like Zoho don’t really do these things.  And there is a growing chorus of voices who say that they shouldn’t, because those ancillary capabilities are over-engineered, over-produced and “under-necessary.”  They might say Microsoft is layering on superfluous capabilities to avoid admitting that Office’s core capabilities, the ones people really need, have become commoditized. It’s hard to take sides in that argument, because different people, and the different companies that employ them, have different needs.  For my own needs, it all comes down to three basic questions: will the new version of Office save me time, will it make the mundane parts of my job easier, and will it augment my services to customers?  I need my time back.  I need to spend more of it with my family, and more of it focusing on my own core capabilities rather than the administrative tasks around them.  And I also need my customers to be able to get more value out of the services I provide. Help me triage my inbox, help me get proposals done more quickly and make them easier to read.  Let me get my presentations done faster, make them more effective and make it easier for me to reuse materials from other presentations.  And, since I’m in the BI and data business, help me and my customers manage data and analytics more easily, both on the desktop and online. Those are my criteria.  And, with those in mind, Office 2010 is looking like a worthwhile upgrade.  Perhaps it’s not earth-shattering, but it offers a combination of incremental improvements and a few new major capabilities that I think are quite compelling.  I provide a brief roundup of them here.  It’s admittedly arbitrary and not comprehensive, but I think it tells the Office 2010 story effectively. Across the Suite More than any other, this release of Office aims to give collaboration a real workout.  In certain apps, for the first time, documents can be opened simultaneously by multiple users, with colleagues’ changes appearing in near real-time.  Web-browser-based versions of Word, Excel, PowerPoint and OneNote will be available to extend collaboration to contributors who are off the corporate network. The ribbon user interface is now more pervasive (for example, it appears in OneNote and in Outlook’s main window).  It’s also customizable, allowing users to add, easily, buttons and options of their choosing, into new tabs, or into new groups within existing tabs. Microsoft has also taken the File menu (which was the “Office Button” menu in the 2007 release) and made it into a full-screen “Backstage” view where document-wide operations, like saving, printing and online publishing are performed. And because, more and more, heavily formatted content is cut and pasted between documents and applications, Office 2010 makes it easier to manage the retention or jettisoning of that formatting right as the paste operation is performed.  That’s much nicer than stripping it off, or adding it back, afterwards. And, speaking of pasting, a number of Office apps now make it especially easy to insert screenshots within their documents.  I know that’s useful to me, because I often document or critique applications and need to show them in action.  For the vast majority of users, I expect that this feature will be more useful for capturing snapshots of Web pages, but we’ll have to see whether this feature becomes popular.   Excel At first glance, Excel 2010 looks and acts nearly identically to the 2007 version.  But additional glances are necessary.  It’s important to understand that lots of people in the working world use Excel as more of a database, analytics and mathematical modeling tool than merely as a spreadsheet.  And it’s also important to understand that Excel wasn’t designed to handle such workloads past a certain scale.  That all changes with this release. The first reason things change is that Excel has been tuned for performance.  It’s been optimized for multi-threaded operation; previously lengthy processes have been shortened, especially for large data sets; more rows and columns are allowed and, for the first time, Excel (and the rest of Office) is available in a 64-bit version.  For Excel, this means users can take advantage of more than the 2GB of memory that the 32-bit version is limited to. On the analysis side, Excel 2010 adds Sparklines (tiny charts that fit into a single cell and can therefore be presented down an entire column or across a row) and Slicers (a more user-friendly filter mechanism for PivotTables and charts, which visually indicates what the filtered state of a given data member is).  But most important, Excel 2010 supports the new PowerPIvot add-in which brings true self-service BI to Office.  PowerPivot allows users to import data from almost anywhere, model it, and then analyze it.  Rather than forcing users to build “spreadmarts” or use corporate-built data warehouses, PowerPivot models function as true columnar, in-memory OLAP cubes that can accommodate millions of rows of data and deliver fast drill-down performance. And speaking of OLAP, Excel 2010 now supports an important Analysis Services OLAP feature called write-back.  Write-back is especially useful in financial forecasting scenarios for which Excel is the natural home.  Support for write-back is long overdue, but I’m still glad it’s there, because I had almost given up on it.   PowerPoint This version of PowerPoint marks its progression from a presentation tool to a video and photo editing and production tool.  Whether or not it’s successful in this pursuit, and if offering this is even a sensible goal, is another question. Regardless, the new capabilities are kind of interesting.  A greatly enhanced set of slide transitions with 3D effects; in-product photo and video editing; accommodation of embedded videos from services such as YouTube; and the ability to save a presentation as a video each lay testimony to PowerPoint’s transformation into a media tool and away from a pure presentation tool. These capabilities also recognize the importance of the Web as both a source for materials and a channel for disseminating PowerPoint output. Congruent with that is PowerPoint’s new ability to broadcast a slide presentation, using a quickly-generated public URL, without involving the hassle or expense of a Web meeting service like GoToMeeting or Microsoft’s own LiveMeeting.  Slides presented through this broadcast feature retain full color fidelity and transitions and animations are preserved as well.   Outlook Microsoft’s ubiquitous email/calendar/contact/task management tool gains long overdue speed improvements, especially against POP3 email accounts.  Outlook 2010 also supports multiple Exchange accounts, rather than just one; tighter integration with OneNote; and a new Social Connector providing integration with, and presence information from, online social network services like LinkedIn and Facebook (not to mention Windows Live).  A revamped conversation view now includes messages that are part of a given thread regardless of which folder they may be stored in. I don’t know yet how well the Social Connector will work or whether it will keep Outlook relevant to those who live on Facebook and LinkedIn.  But among the other features, there’s very little not to like.   OneNote To me, OneNote is the part of Office that just keeps getting better.  There is one major caveat to this, which I’ll cover in a moment, but let’s first catalog what new stuff OneNote 2010 brings.  The best part of OneNote, is the way each of its versions have managed hierarchy: Notebooks have sections, sections have pages, pages have sub pages, multiple notes can be contained in either, and each note supports infinite levels of indentation.  None of that is new to 2010, but the new version does make creation of pages and subpages easier and also makes simple work out of promoting and demoting pages from sub page to full page status.  And relationships between pages are quite easy to create now: much like a Wiki, simply typing a page’s name in double-square-brackets (“[[…]]”) creates a link to it. OneNote is also great at integrating content outside of its notebooks.  With a new Dock to Desktop feature, OneNote becomes aware of what window is displayed in the rest of the screen and, if it’s an Office document or a Web page, links the notes you’re typing, at the time, to it.  A single click from your notes later on will bring that same document or Web page back on-screen.  Embedding content from Web pages and elsewhere is also easier.  Using OneNote’s Windows Key+S combination to grab part of the screen now allows you to specify the destination of that bitmap instead of automatically creating a new note in the Unfiled Notes area.  Using the Send to OneNote buttons in Internet Explorer and Outlook result in the same choice. Collaboration gets better too.  Real-time multi-author editing is better accommodated and determining author lineage of particular changes is easily carried out. My one pet peeve with OneNote is the difficulty using it when I’m not one a Windows PC.  OneNote’s main competitor, Evernote, while I believe inferior in terms of features, has client versions for PC, Mac, Windows Mobile, Android, iPhone, iPad and Web browsers.  Since I have an Android phone and an iPad, I am practically forced to use it.  However, the OneNote Web app should help here, as should a forthcoming version of OneNote for Windows Phone 7.  In the mean time, it turns out that using OneNote’s Email Page ribbon button lets you move a OneNote page easily into EverNote (since every EverNote account gets a unique email address for adding notes) and that Evernote’s Email function combined with Outlook’s Send to OneNote button (in the Move group of the ribbon’s Home tab) can achieve the reverse.   Access To me, the big change in Access 2007 was its tight integration with SharePoint lists.  Access 2010 and SharePoint 2010 continue this integration with the introduction of SharePoint’s Access Services.  Much as Excel Services provides a SharePoint-hosted experience for viewing (and now editing) Excel spreadsheet, PivotTable and chart content, Access Services allows for SharePoint browser-hosted editing of Access data within the forms that are built in the Access client itself. To me this makes all kinds of sense.  Although it does beg the question of where to draw the line between Access, InfoPath, SharePoint list maintenance and SharePoint 2010’s new Business Connectivity Services.  Each of these tools provide overlapping data entry and data maintenance functionality. But if you do prefer Access, then you’ll like  things like templates and application parts that make it easier to get off the blank page.  These features help you quickly get tables, forms and reports built out.  To make things look nice, Access even gets its own version of Excel’s Conditional Formatting feature, letting you add data bars and data-driven text formatting.   Word As I said at the beginning of this post, upgrades to Office are about much more than enhancing the suite’s flagship word processing application. So are there any enhancements in Word worth mentioning?  I think so.  The most important one has to be the collaboration features.  Essentially, when a user opens a Word document that is in a SharePoint document library (or Windows Live SkyDrive folder), rather than the whole document being locked, Word has the ability to observe more granular locks on the individual paragraphs being edited.  Word also shows you who’s editing what and its Save function morphs into a sync feature that both saves your changes and loads those made by anyone editing the document concurrently. There’s also a new navigation pane that lets you manage sections in your document in much the same way as you manage slides in a PowerPoint deck.  Using the navigation pane, you can reorder sections, insert new ones, or promote and demote sections in the outline hierarchy.  Not earth shattering, but nice.   Other Apps and Summarized Findings What about InfoPath, Publisher, Visio and Project?  I haven’t looked at them yet.  And for this post, I think that’s fine.  While those apps (and, arguably, Access) cater to specific tasks, I think the apps we’ve looked at in this post service the general purpose needs of most users.  And the theme in those 2010 apps is clear: collaboration is key, the Web and productivity are indivisible, and making data and analytics into a self-service amenity is the way to go.  But perhaps most of all, features are still important, as long as they get you through your day faster, rather than adding complexity for its own sake.  I would argue that this is true for just about every product Microsoft makes: users want utility, not complexity.

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  • Why does F. Wagner consider "NOT (AI_LARGER_THAN_8.1)" to be ambiguous?

    - by oosterwal
    In his article on Virtual Environments (a part of his VFSM specification method) Ferdinand Wagner describes some new ways of thinking about Boolean Algebra as a software design tool. On page 4 of this PDF article, when describing operators in his system he says this: Control statements need Boolean values. Hence, the names must be used to produce Boolean results. To achieve this we want to combine them together using Boolean operators. There is nothing wrong with usage of AND and OR operators with their Boolean meaning. For instance, we may write: DI_ON OR AI_LARGER_THAN_8.1 AND TIMER_OVER to express the control situation: digital input is on or analog input is larger than 8.1 and timer is over. We cannot use the NOT operator, because the result of the Boolean negation makes sense only for true Boolean values. The result of, for instance, NOT (AI_LARGER_THAN_8.1) would be ambiguous. If "AI_LARGER_THAN_8.1" is acceptable, why would he consider "NOT (AI_LARGER_THAN_8.1)" to be ambiguous?

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  • Ask the Readers: Do You Prefer Print Magazines, Online Articles, or Both for Your Important Geeky Reading Needs?

    - by Asian Angel
    We all love to read information about new computer hardware, gadgets, software, and how-to articles to help us and satisfy our need for geeky knowledge. This week we would like to know if you prefer subscribing to/buying print magazines, doing all of your reading online, or using a combination of both Latest Features How-To Geek ETC RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image Google Cloud Print Extension Lets You Print Doc/PDF/Txt Files from Web Sites Hack a $10 Flashlight into an Ultra-bright Premium One Firefox Personas Arrive on Firefox Mobile Focus Booster Is a Sleek and Free Productivity Timer What is the Internet? From the Today Show January 1994 [Historical Video] Take Screenshots and Edit Them in Chrome and Iron Using Aviary Screen Capture

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  • Looking for information on Scholastic BASIC programming books from the mid-1980s

    - by Jason Berkan
    My very first introduction to programming was in grade school, when I would purchase books full of BASIC code listings from the Scholastic school catalogue. Lately I have been searching teh Internetz for information on these books, but without any success. Does anyone know or remember anything about these books? All I can recall is that they were large paperbacks full of various BASIC code listings, some of which were game like. They all included instructions on how to modify the code listings for the different systems of the day, and I distinctly remember that they would always ask for a number in order to seed the RANDOMIZE command (since I figured out on my own that RANDOMIZE TIMER eliminated the need for the question and answer).

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  • Frequent GUI pauses in Ubuntu 13.04 / Unity / Intel HD4000

    - by Simon
    I'm experiencing very frequent (and regular) GUI pauses on my system. Every 30 seconds (pretty much exactly) the GUI will freeze for maybe .25 to .5 seconds. The mouse stops moving, keys stop echoing and a stopwatch timer briefly pauses. I'm using the Intel Graphics driver available from: https://download.01.org/gfx/ubuntu/13.04/main I've looked in a few places and tried a few things for a solution: I've checked cron and anacron for scheduled processes. I've disabled background processes (eg mysql, postgres, apache) not that these were doing anything anyway I've checked the following posts and tried the suggestions there: Unity GUI pauses/freezes for less than a few seconds How to go about troubleshooting frequent system pauses I've watched the system using top and System Monitor and there are no spikes (or even blips) of cpu usage when the pauses occur. There are no obvious error messages in dmesg or syslog There is loads of free RAM (8GB+) and no swap usage If it helps it's a ZooStorm i5 laptop with a HD4000 GPU, 16GB Ram and an SSD. Any help / suggestions would be very gratefully received.

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  • Amazon EC2 Instance - m1.medium Ubuntu 12.04 - Started to crash three days ago

    - by Joy
    The environment: Amazon EC2 Instance - m1.medium Ubuntu 12.04 Apache 2.2.22 - Running a Drupal Site Using MySQL DB Server RAM info: ~$ free -gt total used free shared buffers cached Mem: 3 1 2 0 0 0 -/+ buffers/cache: 0 2 Swap: 0 0 0 Total: 3 1 2 Hard drive info: Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7.9G 4.7G 2.9G 62% / udev 1.9G 8.0K 1.9G 1% /dev tmpfs 751M 180K 750M 1% /run none 5.0M 0 5.0M 0% /run/lock none 1.9G 0 1.9G 0% /run/shm /dev/xvdb 394G 199M 374G 1% /mnt The problem About two days ago the site started failing becaue the MySQL server was shut down by Apache with the following message: kernel: [2963685.664359] [31716] 106 31716 226946 22748 0 0 0 mysqld kernel: [2963685.664730] Out of memory: Kill process 31716 (mysqld) score 23 or sacrifice child kernel: [2963685.664764] Killed process 31716 (mysqld) total-vm:907784kB, anon-rss:90992kB, file-rss:0kB kernel: [2963686.153608] init: mysql main process (31716) killed by KILL signal kernel: [2963686.169294] init: mysql main process ended, respawning That states that the VM was occupying 0.9GB, but my Ram has 2GB free, so 1GB was still left free. I understand that in Linux applications can allocate more memory than physically available. I don't know if this is the problme, it's the first time that it has started to happen. Obviously, the MySQL server tries to restart, but there's no memory for it apparently and it won't restart. Here is its error log: Plugin 'FEDERATED' is disabled. The InnoDB memory heap is disabled Mutexes and rw_locks use GCC atomic builtins Compressed tables use zlib 1.2.3.4 Initializing buffer pool, size = 128.0M InnoDB: mmap(137363456 bytes) failed; errno 12 Completed initialization of buffer pool Fatal error: cannot allocate memory for the buffer pool Plugin 'InnoDB' init function returned error. Plugin 'InnoDB' registration as a STORAGE ENGINE failed. Unknown/unsupported storage engine: InnoDB [ERROR] Aborting [Note] /usr/sbin/mysqld: Shutdown complete I simply restarted the Mysql service. About two hours later it happened again. I restarted it. Then it happened again 9 hours later. So then I thought of the MaxClients parameter of apache.conf, so I went to check it out. It was set at 150. I decided to drop it down to 60. As so: <IfModule mpm_prefork_module> ... MaxClients 60 </IfModule> <IfModule mpm_worker_module> ... MaxClients 60 </IfModule> <IfModule mpm_event_module> ... MaxClients 60 </IfModule> Once I did that, I had the apache2 service restart and it all went smoothly for 3/4 of a day. Since at night the MySQL service shut down once again, but this time it wasn't killed by the Apache2 service. Instead it called the OOM-Killer with the following message: kernel: [3104680.005312] mysqld invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0 kernel: [3104680.005351] [<ffffffff81119795>] oom_kill_process+0x85/0xb0 kernel: [3104680.548860] init: mysql main process (30821) killed by KILL signal Now I'm out of ideas. Some articles state that the ideal thing to do is change the kernel behaviour with the following (include it to the file /etc/sysctl.conf ) vm.overcommit_memory = 2 vm.overcommit_ratio = 80 So no overcommits will take place. I'm wondering if this is the way to go? Keep in mind I'm no server administrator, I have basic knowldege. Thanks a bunch in advance.

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  • what's wrong with this Lua code (creating text inside listener in Corona)

    - by Greg
    If you double/triple click on the myObject here the text does NOT disappear. Why is this not working when there are multiple events being fired? That is, are there actually multiple "text" objects, with some existing but no longer having a reference to them held by the local "myText" variable? Do I have to manually removeSelf() on the local "myText" field before assigning it another "display.newText(...)"? display.setStatusBar( display.HiddenStatusBar ) local myText local function hideMyText(event) print ("hideMyText") myText.isVisible = false end local function showTextListener(event) if event.phase == "began" then print("showTextListener") myText = display.newText("Hello World!", 0, 0, native.systemFont, 30) timer.performWithDelay(1000, hideMyText, 1 ) end end -- Display object to press to show text local myObject = display.newImage( "inventory_button.png", display.contentWidth/2, display.contentHeight/2) myObject:addEventListener("touch", showTextListener) Question 2 - Also why is it the case that if I add a line BEFORE "myText = ..." of: a) "if myText then myText:removeSelf() end" = THIS FIXES THINGS, whereas b) "if myText then myText=nil end" = DOES NOT FIX THINGS Interested in hearing how Lua works here re the answer...

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  • Wifi problem in ubuntu using macbook pro when it restart

    - by Amro
    I was read that subject : http://ubuntuforums.org/showthread.php?t=2011756 and i follow it step by step in the page n 1 , then i was connect but after i restart my macbook again , i was lost the wifi connection.i dont know why or whats the problem exactly. every time I run this command: dmesg | grep -e b43 -e bcma I get this output: [ 2012.769684] bcma-pci-bridge 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 2012.769701] bcma-pci-bridge 0000:02:00.0: setting latency timer to 64 [ 2012.769775] bcma: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x25, class 0x0) [ 2012.769808] bcma: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x1D, class 0x0) [ 2012.769889] bcma: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x13, class 0x0) [ 2012.770175] bcma: PMU resource config unknown for device 0x4331 [ 2012.824527] bcma: Bus registered [ 2012.831744] b43-phy0: Broadcom 4331 WLAN found (core revision 29) [ 2013.371031] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07) and to get the connection again every time i must entery that code in the step of reload driver. How i can let the ubuntu see my wifi and wireless device automatically when i reboot my computer????

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