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• Error adding certificate to cacerts. Unknown key spec

  - by Alvaro Villanueva

  I am using jdk 1.6 in Windows. I have a .der file (DER Encoded X509 Certificate) that will like to add to my cacerts file... so I tried the following: keytool -import -keystore "C:\Program Files\Java\jdk1.6.0_27\jre\lib\security\cacerts" -trustcacerts -alias openldap -file "C:\cacert.der" I got the following error: java.security.cert.CertificateParsingException: java.io.IOException: subject key, java.security.spec.InvalidKeySpecException: Unknown key spec At first, I thoght it was a problemen with the der certificate, but then doing the following I got exactly the same error: keytool -list -keystore "C:\Program Files\Java\jdk1.6.0_27\jre\lib\security\cacerts" Any ideas why is this problem appearing? I have not found anything in the Web. Thanks in advance.

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• Update Manager unable to get updates

  - by dPEN

  In last few days my Ubuntu 11.10 update manager is unable to get new updates. When I checked update log I saw that for couple of updates it says "Network isn't available". For other updates it downloaded logs and and internet connection also works fine. Unable to attached screenshot due to SPAM prevention policy. But for below Release gpgv:/var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_oneiric_Release.gpg it says "Network isn't available" For all other Releases it is downloading fine. And due to this I dont see any update available in last 10 days. LOG OF sudo apt-get update: dipen@EIDLCPU1018:~$ sudo apt-get update [sudo] password for dipen: Ign http:/extras.ubuntu.com oneiric InRelease Ign http:/archive.canonical.com oneiric InRelease Ign http:/archive.canonical.com lucid InRelease Get:1 http:/extras.ubuntu.com oneiric Release.gpg [72 B] Get:2 http:/archive.canonical.com oneiric Release.gpg [198 B] Hit http:/extras.ubuntu.com oneiric Release Get:3 http:/archive.canonical.com lucid Release.gpg [198 B] Err http:/extras.ubuntu.com oneiric Release Hit http:/archive.canonical.com oneiric Release Ign http:/archive.canonical.com oneiric Release Hit http:/archive.canonical.com lucid Release Ign http:/archive.canonical.com lucid Release Ign http:/archive.canonical.com oneiric/partner i386 Packages/DiffIndex Ign http:/archive.canonical.com oneiric/partner TranslationIndex Ign http:/archive.canonical.com lucid/partner i386 Packages/DiffIndex Ign http:/archive.canonical.com lucid/partner TranslationIndex Hit http:/archive.canonical.com oneiric/partner i386 Packages Hit http:/archive.canonical.com lucid/partner i386 Packages Ign http:/dl.google.com stable InRelease Ign http:/archive.canonical.com oneiric/partner Translation-en_IN Ign http:/archive.canonical.com oneiric/partner Translation-en Ign http:/archive.canonical.com lucid/partner Translation-en_IN Ign http:/archive.canonical.com lucid/partner Translation-en Ign http:/in.archive.ubuntu.com oneiric InRelease Ign http:/in.archive.ubuntu.com oneiric-updates InRelease Ign http:/in.archive.ubuntu.com oneiric-security InRelease Get:4 http//dl.google.com stable Release.gpg [198 B] Get:5 http//in.archive.ubuntu.com oneiric Release.gpg [198 B] Get:6 http//in.archive.ubuntu.com oneiric-updates Release.gpg [198 B] Get:7 http//in.archive.ubuntu.com oneiric-security Release.gpg [198 B] Hit http:/in.archive.ubuntu.com oneiric Release Ign http:/in.archive.ubuntu.com oneiric Release Hit http:/in.archive.ubuntu.com oneiric-updates Release Err http:/in.archive.ubuntu.com oneiric-updates Release Hit http:/in.archive.ubuntu.com oneiric-security Release Ign http:/in.archive.ubuntu.com oneiric-security Release Ign http:/in.archive.ubuntu.com oneiric/main i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric/restricted i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric/universe i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric/multiverse i386 Packages/DiffIndex Hit http:/in.archive.ubuntu.com oneiric/main TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/multiverse TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/restricted TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/universe TranslationIndex Ign http:/in.archive.ubuntu.com oneiric-security/main i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric-security/restricted i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric-security/universe i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric-security/multiverse i386 Packages/DiffIndex Hit http:/in.archive.ubuntu.com oneiric-security/main TranslationIndex Hit http:/in.archive.ubuntu.com oneiric-security/multiverse TranslationIndex Hit http:/in.archive.ubuntu.com oneiric-security/restricted TranslationIndex Hit http:/in.archive.ubuntu.com oneiric-security/universe TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/main i386 Packages Hit http:/in.archive.ubuntu.com oneiric/restricted i386 Packages Hit http:/in.archive.ubuntu.com oneiric/universe i386 Packages Hit http:/in.archive.ubuntu.com oneiric/multiverse i386 Packages Hit http:/in.archive.ubuntu.com oneiric/main Translation-en Hit http:/in.archive.ubuntu.com oneiric/multiverse Translation-en Hit http:/in.archive.ubuntu.com oneiric/restricted Translation-en Hit http:/in.archive.ubuntu.com oneiric/universe Translation-en Hit http:/in.archive.ubuntu.com oneiric-security/main i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/restricted i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/universe i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/multiverse i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/main Translation-en Hit http:/in.archive.ubuntu.com oneiric-security/multiverse Translation-en Get:8 http//dl.google.com stable Release [1,347 B] Hit http:/in.archive.ubuntu.com oneiric-security/restricted Translation-en Hit http:/in.archive.ubuntu.com oneiric-security/universe Translation-en Get:9 http//dl.google.com stable/main i386 Packages [1,214 B] Ign http:/dl.google.com stable/main TranslationIndex Ign http:/dl.google.com stable/main Translation-en_IN Ign http:/dl.google.com stable/main Translation-en Fetched 3,821 B in 41s (91 B/s) Reading package lists... Done W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http:/extras.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 16126D3A3E5C1192 Ubuntu Extras Archive Automatic Signing Key <[email protected]> W: GPG error: http:/archive.canonical.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http:/archive.canonical.com lucid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http:/in.archive.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http:/in.archive.ubuntu.com oneiric-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http:/in.archive.ubuntu.com oneiric-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: Failed to fetch http:/extras.ubuntu.com/ubuntu/dists/oneiric/Release W: Failed to fetch http:/in.archive.ubuntu.com/ubuntu/dists/oneiric-updates/Release W: Some index files failed to download. They have been ignored, or old ones used instead. dipen@EIDLCPU1018:~$ LOG of sudo apt-get upgrade: dipen@EIDLCPU1018:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: ghc6-doc haskell-zlib-doc libghc6-zlib-doc 0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded. dipen@EIDLCPU1018:~$ /etc/apt/sources.list: deb http:/in.archive.ubuntu.com/ubuntu/ oneiric main restricted deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted deb http:/in.archive.ubuntu.com/ubuntu/ oneiric universe deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-updates universe deb http:/in.archive.ubuntu.com/ubuntu/ oneiric multiverse deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse deb http:/archive.canonical.com/ubuntu oneiric partner deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-security main restricted deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-security universe deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-security multiverse deb http:/extras.ubuntu.com/ubuntu oneiric main #Third party developers repository deb http:/archive.canonical.com/ lucid partner

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• How can I remove the Translation entries in apt?

  - by Lord of Time

  This is the output of aptitude update: Ign http://archive.canonical.com natty InRelease Ign http://extras.ubuntu.com natty InRelease Ign http://dl.google.com stable InRelease Ign http://security.ubuntu.com natty-security InRelease Hit http://deb.torproject.org natty InRelease Get:1 http://dl.google.com stable Release.gpg [198 B] Ign http://us.archive.ubuntu.com natty InRelease Ign http://us.archive.ubuntu.com natty-updates InRelease Hit http://archive.canonical.com natty Release.gpg Hit http://extras.ubuntu.com natty Release.gpg Hit http://security.ubuntu.com natty-security Release.gpg Hit http://us.archive.ubuntu.com natty Release.gpg Hit http://security.ubuntu.com natty-security Release Hit http://archive.canonical.com natty Release Hit http://extras.ubuntu.com natty Release Get:2 http://dl.google.com stable Release [1,338 B] Hit http://us.archive.ubuntu.com natty-updates Release.gpg Hit http://security.ubuntu.com natty-security/main Sources Hit http://archive.canonical.com natty/partner amd64 Packages Hit http://deb.torproject.org natty/main amd64 Packages Hit http://extras.ubuntu.com natty/main Sources Hit http://us.archive.ubuntu.com natty Release Hit http://security.ubuntu.com natty-security/restricted Sources Hit http://security.ubuntu.com natty-security/universe Sources Hit http://security.ubuntu.com natty-security/multiverse Sources Hit http://security.ubuntu.com natty-security/main amd64 Packages Hit http://security.ubuntu.com natty-security/restricted amd64 Packages Ign http://archive.canonical.com natty/partner TranslationIndex Hit http://extras.ubuntu.com natty/main amd64 Packages Ign http://extras.ubuntu.com natty/main TranslationIndex Hit http://security.ubuntu.com natty-security/universe amd64 Packages Hit http://security.ubuntu.com natty-security/multiverse amd64 Packages Ign http://security.ubuntu.com natty-security/main TranslationIndex Ign http://security.ubuntu.com natty-security/multiverse TranslationIndex Ign http://security.ubuntu.com natty-security/restricted TranslationIndex Ign http://deb.torproject.org natty/main TranslationIndex Ign http://security.ubuntu.com natty-security/universe TranslationIndex Hit http://us.archive.ubuntu.com natty-updates Release Hit http://us.archive.ubuntu.com natty/main Sources Hit http://us.archive.ubuntu.com natty/restricted Sources Hit http://us.archive.ubuntu.com natty/universe Sources Hit http://us.archive.ubuntu.com natty/multiverse Sources Hit http://us.archive.ubuntu.com natty/main amd64 Packages Hit http://us.archive.ubuntu.com natty/restricted amd64 Packages Hit http://us.archive.ubuntu.com natty/universe amd64 Packages Hit http://us.archive.ubuntu.com natty/multiverse amd64 Packages Ign http://us.archive.ubuntu.com natty/main TranslationIndex Ign http://us.archive.ubuntu.com natty/multiverse TranslationIndex Ign http://us.archive.ubuntu.com natty/restricted TranslationIndex Ign http://us.archive.ubuntu.com natty/universe TranslationIndex Hit http://us.archive.ubuntu.com natty-updates/main Sources Hit http://us.archive.ubuntu.com natty-updates/restricted Sources Hit http://us.archive.ubuntu.com natty-updates/universe Sources Get:3 http://dl.google.com stable/main amd64 Packages [469 B] Ign http://dl.google.com stable/main TranslationIndex Hit http://us.archive.ubuntu.com natty-updates/multiverse Sources Hit http://us.archive.ubuntu.com natty-updates/main amd64 Packages Hit http://us.archive.ubuntu.com natty-updates/restricted amd64 Packages Hit http://us.archive.ubuntu.com natty-updates/universe amd64 Packages Hit http://us.archive.ubuntu.com natty-updates/multiverse amd64 Packages Ign http://us.archive.ubuntu.com natty-updates/main TranslationIndex Ign http://us.archive.ubuntu.com natty-updates/multiverse TranslationIndex Ign http://us.archive.ubuntu.com natty-updates/restricted TranslationIndex Ign http://us.archive.ubuntu.com natty-updates/universe TranslationIndex Ign http://archive.canonical.com natty/partner Translation-en_US Ign http://extras.ubuntu.com natty/main Translation-en_US Ign http://extras.ubuntu.com natty/main Translation-en Ign http://archive.canonical.com natty/partner Translation-en Ign http://security.ubuntu.com natty-security/main Translation-en_US Ign http://security.ubuntu.com natty-security/main Translation-en Ign http://security.ubuntu.com natty-security/multiverse Translation-en_US Ign http://security.ubuntu.com natty-security/multiverse Translation-en Ign http://security.ubuntu.com natty-security/restricted Translation-en_US Ign http://security.ubuntu.com natty-security/restricted Translation-en Ign http://security.ubuntu.com natty-security/universe Translation-en_US Ign http://security.ubuntu.com natty-security/universe Translation-en Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release Ign http://dl.google.com stable/main Translation-en_US Hit http://ppa.launchpad.net natty Release Hit http://ppa.launchpad.net natty Release Hit http://ppa.launchpad.net natty Release Hit http://ppa.launchpad.net natty Release Ign http://dl.google.com stable/main Translation-en Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Ign http://us.archive.ubuntu.com natty/main Translation-en_US Ign http://us.archive.ubuntu.com natty/main Translation-en Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Ign http://us.archive.ubuntu.com natty/multiverse Translation-en_US Ign http://us.archive.ubuntu.com natty/multiverse Translation-en Ign http://us.archive.ubuntu.com natty/restricted Translation-en_US Ign http://us.archive.ubuntu.com natty/restricted Translation-en Ign http://us.archive.ubuntu.com natty/universe Translation-en_US Ign http://us.archive.ubuntu.com natty/universe Translation-en Ign http://us.archive.ubuntu.com natty-updates/main Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/main Translation-en Ign http://us.archive.ubuntu.com natty-updates/multiverse Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/multiverse Translation-en Ign http://us.archive.ubuntu.com natty-updates/restricted Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/restricted Translation-en Ign http://us.archive.ubuntu.com natty-updates/universe Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/universe Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://archive.getdeb.net natty-getdeb InRelease Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Hit http://archive.getdeb.net natty-getdeb Release.gpg Hit http://archive.getdeb.net natty-getdeb Release Ign http://deb.torproject.org natty/main Translation-en_US Ign http://deb.torproject.org natty/main Translation-en Hit http://archive.getdeb.net natty-getdeb/apps amd64 Packages Ign http://archive.getdeb.net natty-getdeb/apps TranslationIndex Ign http://archive.getdeb.net natty-getdeb/apps Translation-en_US Ign http://archive.getdeb.net natty-getdeb/apps Translation-en Fetched 2,005 B in 45s (44 B/s) Reading package lists... Is there any way I can get rid of the Translation stuff? I'm tired of it resulting in tons of repository checks rather than it checking far less repositories (69 actual repos vs. 169 checks)

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• Using Twain Dot Net in XBAP (Deployed via ASP.NET)

  - by Kaveh Shahbazian

  First Version: Is there a way to use Twain Dot Net in a XBAP (WPF in browser)? Second Version: I have a setup exe (installation) that puts TwainDotNet.dll and TwainDotNet.Wpf.dll on client machine and registers them in GAC (using gacutil.exe). I have also a XBAP page on my server (IIS). (The XBAP part of the project works fine locally and I am using those 2 twin libraries registered in GAC locally too. And on client machine I have registered my generated certification in Trusted Root and Publishers. I have tested my XBAP without Twin libs on the client machine(s) and it works fine; test XBAP edits a text file on client machine hard). Now; when I browse my XBAP on a client, I get : "Error getting information about the default source: Failure"; which I think happens in GetDefault of DataSource class. Is there any work around? Thanks

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• How can I set initial values when using Silverlight DataForm and .Net RIA Services DomainDataSource?

  - by TheDuke

  I'm experimenting with .Net RIA and Silverlight, I have a few of related entities; Client, Project and Job, a Client has many Projects, and a Project has many Jobs. In the Silverlight app, I'm uisng a DomainDataSource, and DataForm controls to perform the CRUD operations. When a Client is selected a list of projects appears, at which point the user can add a new project for that client. I'd like to be able to fill in the value for client automatically, but there doesn't seem to be any way to do that, while there is an AddingNewItem event on the DataForm control, it seems to fire before the DataForm has an instance of the new object and I'm not sure trawling through the ChangeSet from the DomainDataSource SubmittingChanges event is the best way to do this. I would of thought this would of been an obvious feature... anyone know the best way to achieve this functionality?

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• Rob Blackwell on interoperability and Azure

  - by Eric Nelson

  At QCon in March we had a sample Azure application implemented in both Java and Ruby to demonstrate that the Windows Azure Platform is not just about .NET. The following is an interesting interview with Rob Blackwell, the R&D director of the partner who implemented the application. UK Interoperability Team Interviews Rob Blackwell, R&D Director at Active Web Solutions. Is Microsoft taking interoperability seriously? Yes. In the past, I think Microsoft has, quite rightly come in for criticism, but architects and developers should look at this again. The Interoperability Bridges site (http://www.interoperabilitybridges.com/ ) shows a wide range of projects that allow interoperability from Java, Ruby and PHP for example. The Windows Azure platform has been architected with interoperable APIs in mind. It's straightforward to access the various storage facilities from just about any language or platform. Azure compute is capable of running more than just C# applications! Why is interoperability important to you? My company provides consultancy and bespoke development services. We're a Microsoft Gold Partner, but we live in the real world where companies have a mix of technologies provided by a variety of vendors. When developing an enterprise software solution, you rarely have a completely blank canvas. We often see integration scenarios where we need to exchange data with legacy systems. It's not unusual to see modern Silverlight applications being built on top of Java or Mainframe based back ends. Could you give us some examples of where interoperability has been important for your projects? We developed an innovative Sea Safety system for the RNLI Lifeboats here in the UK. Commercial Fishing is one of the most dangerous professions and we helped developed the MOB Guardian System which uses satellite technology and man overboard devices to raise the alarm when a fisherman gets into trouble. The solution is implemented in .NET running on Windows, but without interoperable standards, it would have been impossible to communicate with the satellite gateway technology. For more information, please see the case study: http://www.microsoft.com/casestudies/Case_Study_Detail.aspx?CaseStudyID=4000005892 More recently, we were asked to build a web site to accompany the QCon 2010 conference in London to help demonstrate and promote interoperability. We built the site using Java and Restlet and hosted it in Windows Azure Compute. The site accepts feedback from visitors and all the data is stored in Windows Azure Storage. We also ported the application to Ruby on Rails for demonstration purposes. Visitors to the stand were surprised that this was even possible. Why should Java developers be interested in Windows Azure? Windows Azure Storage consists of Blobs, Queues and Tables. The storage is scalable, durable, secure and cost-effective. Using the WindowsAzure4j library, it's easy to use, and takes just a few lines of code. If you are writing an application with large data storage requirements, or you want an offsite backup, it makes a lot of sense. Running Java applications in Azure Compute is straightforward with tools like the Tomcat Solution Accelerator (http://code.msdn.microsoft.com/winazuretomcat )and AzureRunMe (http://azurerunme.codeplex.com/ ). The Windows Azure AppFabric Service Bus can also be used to connect heterogeneous systems running on different networks and in different data centres. How can The Service Bus be considered an interoperability solution? I think that the Windows Azure AppFabric Service Bus is one of Microsoft’s best kept secrets. Think of it as “a globally scalable application plumbing kit in the sky”. If you have used Enterprise Service Buses before, you’ll be familiar with the concept. Applications can connect to the service bus to securely exchange data – these can be point to point or multicast links. With the AppFabric Service Bus, the applications can exist anywhere that has access to the Internet and the connections can traverse firewalls. This makes it easy to extend or scale your application or reach out to other networks and technologies. For example, let’s say you have a SQL Server database running on premises and you want to expose the data to a Java application running in the cloud. You could set up a point to point Service Bus connection and use JDBC. Traditionally this would have been difficult or impossible without punching holes in firewalls and compromising security. Rob Blackwell is R&D Director at Active Web Solutions, www.aws.net , a Microsoft Gold Partner specialising in leading edge software solutions. He is an occasional writer and conference speaker and blogs at www.robblackwell.org.uk Related Links: UK Azure Online Community – join today. UK Windows Azure Site Start working with Windows Azure

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• "NOT_SUPPORTED_BY_GUI" Exception in JCo

  - by cedar715

  We are having a BAPI that uploads the specified document to SAP. The BAPI accept three parameters: ID, FILE_LOC and FOLDER_NAME. And I'm setting the values as follows in the JCo code: JCO.ParameterList paramList = function.getImportParameterList(); paramList.setValue("101XS1", "EXTERNAL_ID"); paramList.setValue("tmp", "FOLDER_NAME"); paramList.setValue("D:/upload/foo.txt", "FILE_LOCATION"); But when I'm trying to execute the BAPI, am getting the following exception: com.sap.mw.jco.JCO$Exception: (104) RFC_ERROR_SYSTEM_FAILURE: Exception condition "NOT_SUPPORTED_BY_GUI" raised. at com.sap.mw.jco.rfc.MiddlewareRFC$Client.nativeExecute(Native Method) at com.sap.mw.jco.rfc.MiddlewareRFC$Client.execute(MiddlewareRFC.java:1242) at com.sap.mw.jco.JCO$Client.execute(JCO.java:3816) at com.sap.mw.jco.JCO$Client.execute(JCO.java:3261) The same BAPI is working fine if I execute through thick client(SAP Logon). But through JCo, its giving this error.

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• Big Data – Role of Cloud Computing in Big Data – Day 11 of 21

  - by Pinal Dave

  In yesterday’s blog post we learned the importance of the NewSQL. In this article we will understand the role of Cloud in Big Data Story What is Cloud? Cloud is the biggest buzzword around from last few years. Everyone knows about the Cloud and it is extremely well defined online. In this article we will discuss cloud in the context of the Big Data. Cloud computing is a method of providing a shared computing resources to the application which requires dynamic resources. These resources include applications, computing, storage, networking, development and various deployment platforms. The fundamentals of the cloud computing are that it shares pretty much share all the resources and deliver to end users as a service.  Examples of the Cloud Computing and Big Data are Google and Amazon.com. Both have fantastic Big Data offering with the help of the cloud. We will discuss this later in this blog post. There are two different Cloud Deployment Models: 1) The Public Cloud and 2) The Private Cloud Public Cloud Public Cloud is the cloud infrastructure build by commercial providers (Amazon, Rackspace etc.) creates a highly scalable data center that hides the complex infrastructure from the consumer and provides various services. Private Cloud Private Cloud is the cloud infrastructure build by a single organization where they are managing highly scalable data center internally. Here is the quick comparison between Public Cloud and Private Cloud from Wikipedia:   Public Cloud Private Cloud Initial cost Typically zero Typically high Running cost Unpredictable Unpredictable Customization Impossible Possible Privacy No (Host has access to the data Yes Single sign-on Impossible Possible Scaling up Easy while within defined limits Laborious but no limits Hybrid Cloud Hybrid Cloud is the cloud infrastructure build with the composition of two or more clouds like public and private cloud. Hybrid cloud gives best of the both the world as it combines multiple cloud deployment models together. Cloud and Big Data – Common Characteristics There are many characteristics of the Cloud Architecture and Cloud Computing which are also essentially important for Big Data as well. They highly overlap and at many places it just makes sense to use the power of both the architecture and build a highly scalable framework. Here is the list of all the characteristics of cloud computing important in Big Data Scalability Elasticity Ad-hoc Resource Pooling Low Cost to Setup Infastructure Pay on Use or Pay as you Go Highly Available Leading Big Data Cloud Providers There are many players in Big Data Cloud but we will list a few of the known players in this list. Amazon Amazon is arguably the most popular Infrastructure as a Service (IaaS) provider. The history of how Amazon started in this business is very interesting. They started out with a massive infrastructure to support their own business. Gradually they figured out that their own resources are underutilized most of the time. They decided to get the maximum out of the resources they have and hence  they launched their Amazon Elastic Compute Cloud (Amazon EC2) service in 2006. Their products have evolved a lot recently and now it is one of their primary business besides their retail selling. Amazon also offers Big Data services understand Amazon Web Services. Here is the list of the included services: Amazon Elastic MapReduce – It processes very high volumes of data Amazon DynammoDB – It is fully managed NoSQL (Not Only SQL) database service Amazon Simple Storage Services (S3) – A web-scale service designed to store and accommodate any amount of data Amazon High Performance Computing – It provides low-tenancy tuned high performance computing cluster Amazon RedShift – It is petabyte scale data warehousing service Google Though Google is known for Search Engine, we all know that it is much more than that. Google Compute Engine – It offers secure, flexible computing from energy efficient data centers Google Big Query – It allows SQL-like queries to run against large datasets Google Prediction API – It is a cloud based machine learning tool Other Players Besides Amazon and Google we also have other players in the Big Data market as well. Microsoft is also attempting Big Data with the Cloud with Microsoft Azure. Additionally Rackspace and NASA together have initiated OpenStack. The goal of Openstack is to provide a massively scaled, multitenant cloud that can run on any hardware. Thing to Watch The cloud based solutions provides a great integration with the Big Data’s story as well it is very economical to implement as well. However, there are few things one should be very careful when deploying Big Data on cloud solutions. Here is a list of a few things to watch: Data Integrity Initial Cost Recurring Cost Performance Data Access Security Location Compliance Every company have different approaches to Big Data and have different rules and regulations. Based on various factors, one can implement their own custom Big Data solution on a cloud. Tomorrow In tomorrow’s blog post we will discuss about various Operational Databases supporting Big Data. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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• Error in using Hadoop MapReduce in Eclipse

  - by Shweta

  When I executed a MapReduce program in Eclipse using Hadoop, I got the below error. It has to be some change in path, but I'm not able to figure it out. Any idea? 16:35:39 INFO mapred.JobClient: Task Id : attempt_201001151609_0001_m_000006_0, Status : FAILED java.io.FileNotFoundException: File C:/tmp/hadoop-Shwe/mapred/local/taskTracker/jobcache/job_201001151609_0001/attempt_201001151609_0001_m_000006_0/work/tmp does not exist. at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:361) at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:245) at org.apache.hadoop.mapred.TaskRunner.setupWorkDir(TaskRunner.java:519) at org.apache.hadoop.mapred.Child.main(Child.java:155)

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• Getting WCF Bindings and Behaviors from any config source

  - by cibrax

  The need of loading WCF bindings or behaviors from different sources such as files in a disk or databases is a common requirement when dealing with configuration either on the client side or the service side. The traditional way to accomplish this in WCF is loading everything from the standard configuration section (serviceModel section) or creating all the bindings and behaviors by hand in code. However, there is a solution in the middle that becomes handy when more flexibility is needed. This solution involves getting the configuration from any place, and use that configuration to automatically configure any existing binding or behavior instance created with code.  In order to configure a binding instance (System.ServiceModel.Channels.Binding) that you later inject in any endpoint on the client channel or the service host, you first need to get a binding configuration section from any configuration file (you can generate a temp file on the fly if you are using any other source for storing the configuration).  private BindingsSection GetBindingsSection(string path) { System.Configuration.Configuration config = System.Configuration.ConfigurationManager.OpenMappedExeConfiguration( new System.Configuration.ExeConfigurationFileMap() { ExeConfigFilename = path }, System.Configuration.ConfigurationUserLevel.None); var serviceModel = ServiceModelSectionGroup.GetSectionGroup(config); return serviceModel.Bindings; }   The BindingsSection contains a list of all the configured bindings in the serviceModel configuration section, so you can iterate through all the configured binding that get the one you need (You don’t need to have a complete serviceModel section, a section with the bindings only works).  public Binding ResolveBinding(string name) { BindingsSection section = GetBindingsSection(path); foreach (var bindingCollection in section.BindingCollections) { if (bindingCollection.ConfiguredBindings.Count > 0 && bindingCollection.ConfiguredBindings[0].Name == name) { var bindingElement = bindingCollection.ConfiguredBindings[0]; var binding = (Binding)Activator.CreateInstance(bindingCollection.BindingType); binding.Name = bindingElement.Name; bindingElement.ApplyConfiguration(binding); return binding; } } return null; }   The code above does just that, and also instantiates and configures the Binding object (System.ServiceModel.Channels.Binding) you are looking for. As you can see, the binding configuration element contains a method “ApplyConfiguration” that receives the binding instance that needs to be configured. A similar thing can be done for instance with the “Endpoint” behaviors. You first get the BehaviorsSection, and then, the behavior you want to use.  private BehaviorsSection GetBehaviorsSection(string path) { System.Configuration.Configuration config = System.Configuration.ConfigurationManager.OpenMappedExeConfiguration( new System.Configuration.ExeConfigurationFileMap() { ExeConfigFilename = path }, System.Configuration.ConfigurationUserLevel.None); var serviceModel = ServiceModelSectionGroup.GetSectionGroup(config); return serviceModel.Behaviors; }public List<IEndpointBehavior> ResolveEndpointBehavior(string name) { BehaviorsSection section = GetBehaviorsSection(path); List<IEndpointBehavior> endpointBehaviors = new List<IEndpointBehavior>(); if (section.EndpointBehaviors.Count > 0 && section.EndpointBehaviors[0].Name == name) { var behaviorCollectionElement = section.EndpointBehaviors[0]; foreach (BehaviorExtensionElement behaviorExtension in behaviorCollectionElement) { object extension = behaviorExtension.GetType().InvokeMember("CreateBehavior", BindingFlags.InvokeMethod | BindingFlags.NonPublic | BindingFlags.Instance, null, behaviorExtension, null); endpointBehaviors.Add((IEndpointBehavior)extension); } return endpointBehaviors; } return null; }   In this case, the code for creating the behavior instance is more tricky. First of all, a behavior in the configuration section actually represents a set of “IEndpoint” behaviors, and the behavior element you get from the configuration does not have any public method to configure an existing behavior instance. This last one only contains a protected method “CreateBehavior” that you can use for that purpose. Once you get this code implemented, a client channel can be easily configured as follows  var binding = resolver.ResolveBinding("MyBinding"); var behaviors = resolver.ResolveEndpointBehavior("MyBehavior"); SampleServiceClient client = new SampleServiceClient(binding, new EndpointAddress(new Uri("http://localhost:13749/SampleService.svc"), new DnsEndpointIdentity("localhost"))); foreach (var behavior in behaviors) { if(client.Endpoint.Behaviors.Contains(behavior.GetType())) { client.Endpoint.Behaviors.Remove(behavior.GetType()); } client.Endpoint.Behaviors.Add(behavior); }   The code above assumes that a configuration file (in any place) with a binding “MyBinding” and a behavior “MyBehavior” exists. That file can look like this,  <system.serviceModel> <bindings> <basicHttpBinding> <binding name="MyBinding"> <security mode="Transport"></security> </binding> </basicHttpBinding> </bindings> <behaviors> <endpointBehaviors> <behavior name="MyBehavior"> <clientCredentials> <windows/> </clientCredentials> </behavior> </endpointBehaviors> </behaviors> </system.serviceModel>   The same thing can be done of course in the service host if you want to manually configure the bindings and behaviors.  

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• Kernel, dpkg, sudo and apt-get corrupted

  - by TECH4JESUS

  Here are some errors that I am getting: 1) A proper configuration for Firestarter was not found. If you are running Firestarter from the directory you built it in, run make install-data-local to install a configuration, or simply make install to install the whole program. Firestarter will now close. root@p:/# firestarter ** (firestarter:5890): WARNING **: The connection is closed (firestarter:5890): GnomeUI-WARNING **: While connecting to session manager: None of the authentication protocols specified are supported. (firestarter:5890): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (firestarter:5890): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (firestarter:5890): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (firestarter:5890): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (firestarter:5890): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (firestarter:5890): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (firestarter:5890): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. ^C 2) Also I cannot apt-get install sudo root@p:/# apt-get install sudo Reading package lists... Done Building dependency tree Reading state information... Done sudo is already the newest version. The following packages were automatically installed and are no longer required: gir1.2-rb-3.0 gir1.2-gstreamer-0.10 libntfs10 python-mako libdmapsharing-3.0-2 rhythmbox-data libx264-116 rhythmbox libiso9660-7 librhythmbox-core5 libvpx0 libmatroska4 gir1.2-gst-plugins-base-0.10 rhythmbox-mozilla rhythmbox-plugin-zeitgeist libattica0 libgpac0.4.5 python-markupsafe libmusicbrainz4c2a rhythmbox-plugin-cdrecorder rhythmbox-plugins libaudiofile0 Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded. 9 not fully installed or removed. Need to get 0 B/76.3 MB of archives. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? Y /bin/sh: 1: /usr/sbin/dpkg-preconfigure: not found (Reading database ... 495741 files and directories currently installed.) Preparing to replace linux-image-3.2.0-24-generic 3.2.0-24.39 (using .../linux-image-3.2.0-24-generic_3.2.0-24.39_amd64.deb) ... dpkg (subprocess): unable to execute old pre-removal script (/var/lib/dpkg/info/linux-image-3.2.0-24-generic.prerm): No such file or directory dpkg: warning: subprocess old pre-removal script returned error exit status 2 dpkg - trying script from the new package instead ... dpkg (subprocess): unable to execute new pre-removal script (/var/lib/dpkg/tmp.ci/prerm): No such file or directory dpkg: error processing /var/cache/apt/archives/linux-image-3.2.0-24-generic_3.2.0-24.39_amd64.deb (--unpack): subprocess new pre-removal script returned error exit status 2 dpkg (subprocess): unable to execute installed post-installation script (/var/lib/dpkg/info/linux-image-3.2.0-24-generic.postinst): No such file or directory dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 2 Preparing to replace linux-image-3.2.0-25-generic 3.2.0-25.40 (using .../linux-image-3.2.0-25-generic_3.2.0-25.40_amd64.deb) ... dpkg (subprocess): unable to execute old pre-removal script (/var/lib/dpkg/info/linux-image-3.2.0-25-generic.prerm): No such file or directory dpkg: warning: subprocess old pre-removal script returned error exit status 2 dpkg - trying script from the new package instead ... dpkg (subprocess): unable to execute new pre-removal script (/var/lib/dpkg/tmp.ci/prerm): No such file or directory dpkg: error processing /var/cache/apt/archives/linux-image-3.2.0-25-generic_3.2.0-25.40_amd64.deb (--unpack): subprocess new pre-removal script returned error exit status 2 dpkg (subprocess): unable to execute installed post-installation script (/var/lib/dpkg/info/linux-image-3.2.0-25-generic.postinst): No such file or directory dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 2 Errors were encountered while processing: /var/cache/apt/archives/linux-image-3.2.0-24-generic_3.2.0-24.39_amd64.deb /var/cache/apt/archives/linux-image-3.2.0-25-generic_3.2.0-25.40_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1)

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• A Rose by Any Other Name..

  - by Geoff N. Hiten

  It is always a good start when you can steal a title line from one of the best writers in the English language.  Let’s hope I can make the rest of this post live up to the opening.  One recurring problem with SQL server is moving databases to new servers.  Client applications use a variety of ways to resolve SQL Server names, some of which are not changed easily <cough SharePoint /cough>.  If you happen to be using default instances on both the source and target SQL Server, then the solution is pretty simple.  You create (or bug the network admin until she creates) two DNS “A” records. One points the old name to the new IP address.  The other creates a new alias for the old server, since the original system name is now redirected.  Note this will redirect ALL traffic from the old server to the new server, including RDP and file share connection attempts.    Figure 1 – Microsoft DNS MMC Snap-In   Figure 2 – DNS New Host Dialog Box Both records are necessary so you can still access the old server via an alternate name. Server Role IP Address Name Alias Source 10.97.230.60 SQL01 SQL01_Old Target 10.97.230.80 SQL02 SQL01 Table 1 – Alias List If you or somebody set up connections via IP address, you deserve to have to go to each app and fix it by hand.  That is the only way to fix that particular foul-up. If have to deal with Named Instances either as a source or a target, then it gets more complicated.  The standard fix is to use the SQL Server Configuration Manager (or one of its earlier incarnations) to create a SQL client alias to redirect the connection.  This can be a pain installing and configuring the app on multiple client servers.  The good news is that SQL Server Configuration Manager AND all of its earlier versions simply write a few registry keys.  Extracting the keys into a .reg file makes centralized automated deployment a snap. If the client is a 32-bit system, you have to extract the native key.  If it is a 64-bit, you have to extract the native key and the WoW (32 bit on 64 bit host) key. First, pick a development system to create the actual registry key.  If you do this repeatedly, you can simply edit an existing registry file.  Create the entry using the SQL Configuration Manager.  You must use a 64-bit system to create the WoW key.  The following example redirects from a named instance “SQL01\SQLUtiluty” to a default instance on “SQL02”.   Figure 3 – SQL Server Configuration Manager - Native Figure 3 shows the native key listing. Figure 4 – SQL Server Configuration Manager – WoW If you think you don’t need the WoW key because your app is 64 it, think again.  SQL Server Management Server is a 32-bit app, as are most SQL test utilities.  Always create both keys for 64-bit target systems. Now that the keys exist, we can extract them into a .reg file. Fire up REGEDIT and browse to the following location:  HKLM\Software\Microsoft\MSSQLServer\Client\ConnectTo.  You can also search the registry for the string value of one of the server names (old or new). Right click on the “ConnectTo” label and choose “Export”.  Save with an appropriate name and location.  The resulting file should look something like this: Figure 5 – SQL01_Alias.reg Repeat the process with the location: HKLM\Software\Wow6432Node\Microsoft\MSSQLServer\Client\ConnectTo Note that if you have multiple alias entries, ALL of the entries will be exported.  In that case, you can edit the file and remove the extra aliases. You can edit the files together into a single file.  Just leave a blank line between new keys like this: Figure 6 – SQL01_Alias_All.reg Of course if you have an automatic way to deploy, it makes sense to have an automatic way to Un-deploy.  To delete a registry key, simply edit the .reg file and replace the target with a “-“ sign like so. Figure 7 – SQL01_Alias_UNDO.reg Now we have the ability to move any database to any server without having to install or change any applications on any client server.  The whole process should be transparent to the applications, which makes planning and coordinating database moves a far simpler task.

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• C#/.Net Download file from premium rapidshare account

  - by Simon

  Hello, how can I log to premium rapidshare account from my source? I tryed this but it is not working: string authInfo = "name" + ":" + "pass"; authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo)); client.Headers["Authorization"] = "Basic " + authInfo; client.DownloadFile("url", "C:\\Temp\\aaaa.file"); OR WebClient client = new WebClient(); client.Credentials = new NetworkCredential("name", "pass"); client.DownloadFile("url", "C:\\Temp\\aaaa.file"); Is there any simple way how download the file directly from rapidshare premium? Thank you a lot! Regards, simon

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• Oauth and Jtwitter

  - by Jay

  I am trying to use Oauth with jTwitter.. and get an exception while creating the Oauth signpostclient String JTWITTER_OAUTH_KEY="GDdmIQH6jhtmLUypg82g"; String JTWITTER_OAUTH_SECRET="9zWH6qe0qG7Lc1telCn7FhUbLyVdjEaL3MO5uHxn8"; OAuthSignpostClient client = new OAuthSignpostClient(JTWITTER_OAUTH_KEY, JTWITTER_OAUTH_SECRET,"oob"); throws the following exception Exception in thread "main" java.lang.NoSuchMethodError: oauth.signpost.AbstractOAuthConsumer.(Ljava/lang/String;Ljava/lang/String;)V at winterwell.jtwitter.OAuthSignpostClient$2.(OAuthSignpostClient.java:182) at winterwell.jtwitter.OAuthSignpostClient.init(OAuthSignpostClient.java:182) at winterwell.jtwitter.OAuthSignpostClient.(OAuthSignpostClient.java:144) at jay.twitter.HelloTwitter.main(HelloTwitter.java:16) What am I doing wrong? Can anyone help pls.

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• rspec testing a controller post changing my params from symbols to strings and breaking my tests

  - by ssmithstone

  In my controller spec I am doing this: it "should create new message" do Client.should_receive(:create).with({:title => 'Mr'}) post 'create' , :client => {:title => "Mr" } end ... and in my controller I am doing ... def create client = Client.create(params[:client]) end However this is failing with the following error message : expected: ({:title=>"Mr"}) got: ({"title"=>"Mr"}) I'm wondering why this is happening and how to get it to work

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• python blocking sockets, send returns immediately

  - by Mark

  Hi, I am writing a multithreaded socket application in Python using the socket module. the server listens for connections and when it gets one it spawns a thread for that socket. the server thread sends some data to the client. but the client is not yet ready to receive it. I thought this would have caused the server to wait until the client starts recv but instead returns immediately the client then calls recv which is blocking and no data is ever received. client socket constructor self.__clientSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.__clientSocket.connect((server, port)) server socket constructor self.servSock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.servSock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) #self.servSock.settimeout(None) self.servSock.setblocking(1) self.servSock.bind((self.addr,self.port)) self.servSock.listen(5) listening accept thread try: (cs, address) = self.servSock.accept() except socket.timeout: return threadName = '\r\nClient %s:%s\r\n' % (cs, address) print threadName clientSocketHandler = ClientSocket() clientSocketHandler.setClientSocket(cs) self.clients.newThread(self.clientFunc, {clientSocketHandler : "1"}, threadName).start() server and clients send/rec methods from inside ClientSocket receivedData = self.__clientSocket.recv(1024*1024) self.__clientSocket.send(s) any ideas why send() is returning straight away?

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• Get domain user from IPAddress or Hostname in .Net

  - by Duracell

  We're trying to implement a custom solution for Growl for Windows. We tell the Growl client to subscribe to notifications from our server. The server then gets a message from the client via the GNTP (Growl messaging protocol). We require the name of the user logged into the client machine in order to do database lookups. The GNTP does not provide this information. So, we have a connected client socket (and thus, IP address) and a message from this client containing its machine name. Is there any possible way to determine the username of the user who is logged into the specified machine? We have access to windows domain services.

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• Django: Summing values of records grouped by foreign key

  - by Dan0

  Hi there In django, given the following models (slightly simplified), I'm struggling to work out how I would get a view including sums of groups class Client(models.Model): api_key = models.CharField(unique=True, max_length=250, primary_key=True) name = models.CharField(unique=True, max_length=250) class Purchase(models.Model): purchase_date = models.DateTimeField() client = models.ForeignKey(SavedClient, to_field='api_key') amount_to_invoice = models.FloatField(null=True) For a given month, I'd like to see e.g. April 2010 For Each Client that purchased this month: * CLient: Name * Total amount of Purchases for this month * Total cost of purchases for this month For each Purchase made by client: * Date * Amount * Etc I've been looking into django annotation, but can't get my head around how to sum values of a field for a particular group over a particular month and send the information to a template as a variable/tag. Any info would be appreciated

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• Gplv3 and consulting

  - by Mjgp2

  If you are doing a one off piece of work as a consultant, for which the client receives only binaries, can you use gpl3 software ? You are working on behalf of the client and not distributing it. From a standard gpl FAQ: Q: I am an OXID partner/reseller/consultant and I occasionally do one-time OXID eShop Community Edition customization work for clients which are derived from OXID modules. These customizations are used only for the client. Do I need to make these changes publicly available? A: No, unless your client redistributes the code in which case the client must make it available to its licensees. Is this implying it is ok?

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• How to make it easy for users to install my software? Does the programming language matter?

  - by lala

  I'm a beginner to intermediate programmer and I've learned some java and C#. I want to start thinking about making some simple programs that I can release to the world. Just some basic stuff like calendar software that will probably be free. Users want the install process to be quick and easy. To install a java program, I have to tell them to have java installed. To install a C# program, I have to tell them to have .NET installed. I'm worried this might put off some potential users who just want to double click an exe file, choose a directory and be pretty much done. So, I guess this is an either/or two part question: 1) Is there a programming language that makes it easier to set up an installer without requiring users to have other stuff installed? or: 2) Is there some way to set up an installer that checks the system to see if it has java/.NET/whatever, and then includes java/.Net/whatever in the installation if it's not already there?

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• Writing Android apps in C#

  - by JamesBrownIsDead

  I'm a C# programmer and want to write an Android app. I'm a stubborn curmudgeon and refuse to write Java ever again (after switching to C# six years ago). Besides Mono and MonoDroid (and writing Java), are there any options for me? Or should I just feel foolish for refusing to returning to my Java roots? (Please refrain from Java-related vs. C# discussion. I was being rhetorical when I asked about returning to me Java roots.)

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• Exception while running Quartz Schdular program

  - by Sunny Mate

  hi, i am getting he following Exception while running my Quartz Schdular program. Below is the exception Trace Mar 26, 2010 2:54:24 PM org.quartz.core.QuartzScheduler start INFO: Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started. Exception in thread "main" java.lang.IllegalArgumentException: Job class must implement the Job interface. at org.quartz.JobDetail.setJobClass(JobDetail.java:291) at org.quartz.JobDetail.(JobDetail.java:138) at com.Quarrtz.RanchSchedule.main(RanchSchedule.java:18) i have included Quartz-1.7.2.jar and Quartz-all-1.7.2.jar in my class path along with commom-logging 1.1.jar and jdk 6 this is an example i have copy and pasted from JAVA RANCH http://www.javaranch.com/journal/200711/combining_spring_and_quartz.html First example in the above page any help pls thanx in advance Sunny Mate

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• Execute TSQL statement with ExecuteStoreQuery in entity framework 4.0

  - by Jalpesh P. Vadgama

  I was playing with entity framework in recent days and I was searching something that how we can execute TSQL statement in entity framework. And I have found one great way to do that with entity framework ‘ExecuteStoreQuery’ method. It’s executes a TSQL statement against data source given enity framework context and returns strongly typed result. You can find more information about ExcuteStoreQuery from following link. http://msdn.microsoft.com/en-us/library/dd487208.aspx So let’s examine how it works. So Let’s first create a table against which we are going to execute TSQL statement. So I have added a SQL Express database as following. Now once we are done with adding a database let’s add a table called Client like following. Here you can see above Client table is very simple. There are only two fields ClientId and ClientName where ClientId is primary key and ClientName is field where we are going to store client name. Now it’s time to add some data to the table. So I have added some test data like following. Now it’s time to add entity framework model class. So right click project->Add new item and select ADO.NET entity model as following. After clicking on add button a wizard will start it will ask whether we need to create model classes from database or not but we already have our client table ready so I have selected generate from database as following. Once you process further in wizard it will be presented a screen where we can select the our table like following. Now once you click finish it will create model classes with for us. Now we need a gridview control where we need to display those data. So in Default.aspx page I have added a grid control like following. <%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="EntityFramework._Default" %> <asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"> </asp:Content> <asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> <h2> Welcome to ASP.NET! </h2> <p> To learn more about ASP.NET visit <a href="http://www.asp.net" title="ASP.NET Website">www.asp.net</a>. </p> <p> You can also find <a href="http://go.microsoft.com/fwlink/?LinkID=152368&amp;clcid=0x409" title="MSDN ASP.NET Docs">documentation on ASP.NET at MSDN</a>. <asp:GridView ID="grdClient" runat="server"> </asp:GridView> </p> </asp:Content> Now once we are done with adding Gridview its time to write code for server side. So I have written following code in Page_load event of default.aspx page. protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { using (var context = new EntityFramework.TestEntities()) { ObjectResult<Client> result = context.ExecuteStoreQuery<Client>("Select * from Client"); grdClient.DataSource = result; grdClient.DataBind(); } } } Here in the above code you can see that I have written create a object of our entity model and then with the help of the ExecuteStoreQuery method I have execute a simple select TSQL statement which will return a object result. I have bind that object result with gridview to display data. So now we are done with coding.So let’s run application in browser. Following is output as expected. That’s it. Hope you like it. Stay tuned for more..Till then happy programming.

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• Problem reading hexadecimal buffer from C socket

  - by Olaseni

  I'm using the SDL_net sockets API to create a server and client. I can easily read a string buffer, but when I try to send hexadecimal data, recv gets the length, but I cannot seem to be a able to read the buffer contents. IPaddress ip; TCPsocket server,client; int bufSize = 1024; char message[bufSize]; int len; server = SDLNet_TCP_Open(&ip); client = SDLNet_TCP_Accept(server); len = SDLNet_TCP_Recv(client,message,bufSize); Here's a snippet. the buffer length "len" is set (i.e. message length) but I can't get to the data contents in the message buffer. Some sample bind_transmitter PDU data was sent by a random client to the server at that port. I can't read the PDU (SMPP).

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• Silverlight WCF with two-way SSL security certificates

  - by dlang

  Dear All! I would like to implement a server - client software with the following security requirements: WCF-Services need to be secured with SSL and Certificates for both, the server and the client Client certificates need to be generated programmatically upon user registration Client-certificates are deployed via a an automatically generated installer-package Altough the client-certificates are self-signed (no authorized CA for the generation server) the end-user must not add the server-certificate to the trusted certificates in the local Certificate Store My problems: I cannot find any information regarding establishing such a two-way ssl-security for wcf, while the server-certificate is not signed by an authorized CA and instead is created programmatically with "makecert"... My question: Is it technically possible to implement this requirements? If yes - could you provide some hints how to get started? Thank you!

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