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  • WCF Error when using “Match Data” function in MDS Excel AddIn

    - by Davide Mauri
    If you’re using MDS and DQS with the Excel Integration you may get an error when trying to use the “Match Data” feature that uses DQS in order to help to identify duplicate data in your data set. The error is quite obscure and you have to enable WCF error reporting in order to have the error details and you’ll discover that they are related to some missing permission in MDS and DQS_STAGING_DATA database. To fix the problem you just have to give the needed permession, as the following script does: use MDS go GRANT SELECT ON mdm.tblDataQualityOperationsState TO [VMSRV02\mdsweb] GRANT INSERT ON mdm.tblDataQualityOperationsState TO [VMSRV02\mdsweb] GRANT DELETE ON mdm.tblDataQualityOperationsState TO [VMSRV02\mdsweb] GRANT UPDATE ON mdm.tblDataQualityOperationsState TO [VMSRV02\mdsweb] USE [DQS_STAGING_DATA] GO ALTER AUTHORIZATION ON SCHEMA::[db_datareader] TO [VMSRV02\mdsweb] ALTER AUTHORIZATION ON SCHEMA::[db_datawriter] TO [VMSRV02\mdsweb] ALTER AUTHORIZATION ON SCHEMA::[db_ddladmin] TO [VMSRV02\mdsweb] GO Where “VMSRV02\mdsweb” is the user you configured for MDS Service execution. If you don’t remember it, you can just check which account has been assigned to the IIS application pool that your MDS website is using:

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  • Dissecting ASP.NET Routing

    The ASP.NET Routing framework allows developers to decouple the URL of a resource from the physical file on the web server. Specifically, the developer defines <i>routing rules</i>, which map URL patterns to a class or ASP.NET page that generates the content. For instance, you could create a URL pattern of the form <code>Categories/<i>CategoryName</i></code> and map it to the ASP.NET page <code>ShowCategoryDetails.aspx</code>; the <code>ShowCategoryDetails.aspx</code> page would display details about the category <i>CategoryName</i>. With such a mapping, users could view category about the Beverages category by visiting <code>www.yoursite.com/Categories/Beverages</code>. In short, ASP.NET Routing allows

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  • Monitoring almost anything with BizTalk 360

    - by Michael Stephenson
    When you work in an integration environment it is common that you will find yourself in a situation where you integrate with some unusual applications or have some unusual dependencies. That is the nature of integration. When you work with BizTalk one of the common problems is that BizTalk often is the place where problems with applications you integrate with are highlighted and these external applications may have poor monitoring solutions. Fortunately if you are a working with a customer who uses BizTalk 360 then it contains a feature called the "Web Endpoint Manager". Typically the web endpoint manager is used to monitor web services that you integrate with and will ping them at appropriate times to make sure they return the expected HTTP status code. When you have an usual situation where you want to monitor something which is key to the success to your solution but you find yourself having to consider a significant custom solution to monitor the external dependency then the Web Endpoint Manager could be your friend. The endpoint manager monitors a url and checks for a certain status code. This means that you can create your own aspx web page and then make BizTalk 360 monitor this web page. Behind the web page you could write any code you wished. An example of this is architecture is shown in the below diagram.     In the custom web page you would implement some custom code to do whatever it is that you want to monitor. In the below code snippet you can see how the Page_Load default method is doing some kind of check then depending on the result of the check it returns a certain HTTP code. protected void Page_Load(object sender, EventArgs e) { var result = CheckSomething();   if (result == "Success") Response.StatusCode = 202; else if (result == "DatabaseError") Response.StatusCode = 510; else if (result == "SystemError") Response.StatusCode = 512; else Response.StatusCode = 513;   }   In BizTalk 360 you would go into the Monitor and Notify tab and then to BizTalk Environment which gives you access to the Web Endpoint Manager. You need an alarm setup which configures how the endpoint will be checked. I'm not going to go through the details of creating the alarm as this is already documented in the BizTalk 360 documentation. One point to note is that in the example I am using I setup a threshold alarm which means that the url is checked about every minute and if there is an error that persists for a period of time then the alarm will raise the alert notification. In my example I configured the alarm to fire if the error persisted for 3 minutes. The below picture shows accessing the endpoint manager.   In the web endpoint manager you would then configure your endpoint to monitor and the HTTP response code which indicates all is working fine. The below picture shows this. I now have my endpoint monitoring setup and BizTalk 360 should be checking my custom endpoint to see that it is available. If I wanted to manually sanity check that the endpoints I have registered are working fine then clicking the Refresh button will show if they are all good or not. If my custom ASP.net page which is checking my dependency gets a problem you will see in the endpoint manager that the status code does not match the expected return code and your endpoints will display in red and you can see the problem. The below picture shows this. If I use specific HTTP response codes for the errors the custom ASP.net page might encounter I can easily interpret these to know what the problem is. Using the alarms and notifications with BizTalk 360 it means when your endpoint goes into an error state you can easily configure email or SMS notifications from BizTalk 360 to tell you that your endpoint is having problems and you can use BizTalk 360 to help correlate what the problem is to allow you to investigate further. Below you can see the email which tells me my endpoint is not working.   When everything returns to normal you will see the status is now fixed and you will see a situation like below where you can see the WebEndpoints are now green and the return code matches what is expected.   Conclusion As you can see it is really easy to plug your own custom ASP.net page into the BizTalk 360 web endpoint monitoring feature. This extension then gives you the power to really extend the monitoring to almost anything you want as long as you can write some .net code to check that the dependency is available and working. It would be interesting to hear of any ideas people have around things they would monitor with this extension. More details on the end point monitor can be found on the following link: http://www.biztalk360.com/tour/monitoring_notifications

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  • How to Fix "Read-only file system" error when I run something as sudo and try to make a folder/file?

    - by Andrew
    When I try to save something or rename a file/folder it say this error " Read-only file system" or run something as root in the terminal it say this error sudo: unable to open /var/lib/sudo/"My User Name"/0: Read-only file system W: Not using locking for read only lock file /var/lib/dpkg/lock E: Unable to write to /var/cache/apt/ E: The package lists or status file could not be parsed or opened. When I make a Folder the error dialog in the details with Nautilus is this: Error creating directory: Read-only file system I would show you I picture of it but it isn't even letting my save onto my flash drive. Please help me.

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  • Mise à jour Systèmes n°10 de l'exercice 2012 – 25 octobre 2011

    - by swalker
    Logiciels Systèmes, Stockage et Serveurs Sun Modifications des tarifs : Oracle Révision de la tarification internationale pour les matériels et logiciels Systèmes Révision de la tarification internationale pour les matériels et logiciels hérités Oracle Que devez-vous faire ? Chaque mise à jour Systèmes inclut des modifications de la tarification Systèmes et deux fichiers : le document d'annonce (PDF) et les détails de l'annonce (XLS). Les numéros d'identification indiqués dans les documents d'annonce vous permettent de retrouver toutes les références produit concernées par l'annonce en question dans la feuille de calcul. Informations complémentaires Rendez-vous régulièrement sur la page des Tarifs Systèmes du portail OPN pour en savoir plus sur ces mises à jour et connaître les derniers tarifs et les dernières ressources applicables. * Avertissement : Les informations sur la tarification des systèmes Oracle sont des informations confidentielles Oracle, qui vous sont transmises en vertu des modalités de votre contrat Oracle PartnerNetwork.

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  • Watch the Silverlight 4 Launch event and LIVE QA with ScottGu and others

    Next week on 13-April at 8:00 AM PST Scott Guthrie will deliver a keynote address for the DevConnections conference being held in Las Vegas, NV. Scott will provide updates on the progress made in Silverlight 4 and will provide the details of availability of the developer tools, runtime and other news. Mark your calendars and return to the Silverlight community site to tune into the LIVE event. After the keynote, Channel 9 will be hosting interviews with Scott and other key members of the Silverlight...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • UNHCR and Stanyslas Matayo Receive Duke's Choice Award 2012

    - by Geertjan
    This year, NetBeans Platform applications winning Duke's Choice Awards were not only AgroSense, by Ordina in the Netherlands, and the air command and control system by NATO... but also Level One, the UNHCR registration and emergency management system. Unfortunately, Stanyslas Matayo, the architect and lead engineer of Level One, was unable to be at JavaOne to receive his award. It would have been really cool to meet him in person, of course, and he would have joined the NetBeans Party and NetBeans Day, as well as the NetBeans Platform panel discussions that happened at various stages throughout JavaOne. Instead, he received his award at Oracle Day 2012 Nairobi, some days ago, where he presented Level One and received the Duke's Choice Award: Level One is the UNHCR (UN refugee agency) application for capturing information on the first level details of refugees in an emergency context. In its recently released initial version, the application was used in Niger to register information about families in emergency contexts. Read more about it here and see the screenshot below. Congratulations, Stanyslas, and the rest of the development team working on this interesting and important project!

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  • Sun2Oracle: Hub City Media Webcast Reminder - Thursday, September 13, 2012

    - by Darin Pendergraft
    Our Sun2Oracle webcast featuring Steve Giovanetti from Hub City Media is this Thursday, September 13th at 10:00 am PST.  If you haven't registered yet, there is still time: Register Here. Scott Bonell, Sr. Director of Product Management will be talking to Steve about their recent project to upgrade a large University from Sun DSEE Directory to Oracle Unified Directory.  Scott and Steve will talk through details of the project, from planning through implementation. In addition to this webcast, Steve Giovanetti will also be participating in two sessions at Oracle OpenWorld 2012: CON9465 - Next-Generation Directory: Oracle Unified Directory  Etienne Remillon, Principal Product Manager, Oracle  Steve Giovanetti, CTO Hub City Media  Warren Leung, Sr. Architect, UCLA  Tuesday, Oct 2, 5:00 PM – 6:00 PM  Moscone West – 3008 CON5749 - Solutions for Migration of Oracle Waveset to Oracle Identity Manager Steve Giovanetti, CTO Hub City Media Kevin Moulton, Senior Sales Consulting  Manager, Oracle Thursday, Oct 4, 11:15 AM - 12:15 PM Moscone West - 3008

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  • Announcing StorageTek VSM 6 and VLE Capacity Increase

    - by uwes
    Announcing Increased Capacity on StorageTek Virtual Storage Manager System 6 (VSM6) and StorageTek Virtual Library Extension (VLE)! StorageTek Virtual Storage Manager System 6 (VSM 6) and the StorageTek Virtual Library Extension (VLE) makes data management simple for the mainframe data center - Simple to deploy, simple to manage, and simple to scale.  With this announcement, StorageTek VSM 6 as well as StorageTek VLE capacity scaling increases by 33% for StorageTek VSM 6 and 21% for StorageTek VLE.  This significant capacity increase can provide increased consolidation potential for multiple VSM 4/5’s into a single VSM 6. In addition to the StorageTek VSM 6 and VLE capacity increases we are announcing End of Life (EOL) for previous generation StorageTek VSM 6 and VLE part numbers.   Please read the Sales Bulletin on Oracle HW TRC for more details. (If you are not registered on Oracle HW TRC, click here ... and follow the instructions..) For More Information Go To: Oracle.com Tape Page Oracle Technology Network Tape Page

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  • SQL SERVER – SQLServer Quiz 2011 – Do you know your execution plan – Two questions – One Answer

    - by pinaldave
    My friend Jacob Sebastian has SQL Server Quiz 2011 launched. This time when he asked me to come up with quiz question – I wanted to come up with something which is new and make participant to think about it. After carefully thinking I come with question which I really like to solve myself. Here is the details: 1) Using Single table only Once in Single SELECT statement generate execution plan which have JOIN operator. Explain the reason for the same. 2) Using Single table only Once in Single SELECT statement generate execution plan which have parallelism operator. Explain the reason for the same. Bonus: Create a single query which satisfy both of the above statement. To answer this question and win exciting gifts please visit the SQL Server Quiz website. Reference: Pinal Dave (http://blog.SQLAuthority.com)   Filed under: Pinal Dave, PostADay, Readers Contribution, Readers Question, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, SQLServer, T SQL, Technology

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  • Convert a PDF eBook to ePub Format

    - by Matthew Guay
    Would you like to read a PDF eBook on an eReader or mobile device, but aren’t happy with the performance? Here’s how you can convert your PDFs to the popular ePub format so you can easily read them on any device. PDFs are a popular format for eBooks since they render the same on any device and can preserve the exact layout of the print book.  However, this benefit is their major disadvantage on mobile devices, as you often have to zoom and pan back and forth to see everything on the page.  ePub files, on the other hand, are an increasingly popular option. They can reflow to fill your screen instead of sticking to a strict layout style.  With the free Calibre program, you can quickly convert your PDF eBooks to ePub format. Getting Started Download the Calibre installer (link below) for your operating system, and install as normal.  Calibre works on recent versions of Windows, OS X, and Linux.  The Calibre installer is very streamlined, so the install process was quite quick. Calibre is a great application for organizing your eBooks.  It can automatically sort your books by their metadata, and even display their covers in a Coverflow-style viewer. To add an eBook to your library, simply drag-and-drop the file into the Calibre window, or click Add books at the top.  Here you can choose to add all the books from a folder and more. Calibre will then add the book(s) to your library, import the associated metadata, and organize them in the catalog. Convert your Books Once you’ve imported your books into Calibre, it’s time to convert them to the format you want.  Select the book or books you want to convert, and click Convert E-books.  Select whether you want to convert them individually or bulk convert them. The convertor window has lots of options, so you can get your ePub book exactly like you want.  You can simply click Ok and go with the defaults, or you can tweak the settings. Do note that the conversion will only work successfully with PDFs that contain actual text.  Some PDFs are actually images scanned in from the original books; these will appear just like the PDF after the conversion, and won’t be any easier to read. On the first tab, you’ll notice that Calibri will repopulate most of the metadata fields with info from your PDF.  It will also use the first page of the PDF as the cover.  Edit any of the information that may be incorrect, and add any additional information you want associated with the book. If you want to convert your eBook to a different format other than ePub, Calibri’s got you covered, too.  On the top right, you can choose to output the converted eBook into a many different file formats, including the Kindle-friendly MOBI format. One other important settings page is the Structure Detection tab.  Here you can choose to have it remove headers and footers in the converted book, as well as automatically detect chapter breaks. Click Ok when you’ve finished choosing your settings and Calibre will convert the book.  This may take a few minutes, depending on the size of the PDF.  If the conversion seems to be taking too long, you can click Show job details for more information on the progress.   The conversion usually works good, but we did have one job freeze on us.  When we checked the job details, it indicated that the PDF was copy-protected.  Most PDF eBooks, however, worked fine. Now, back in the main Calibri window, select your book and save it to disk.  You can choose to save only the EPUB format, or you can select Save to disk to save all formats of the book to your computer. You can also view the ePub file directly in Calibri’s built-in eBook viewer.  This is the PDF book we converted, and it looks fairly good in the converted format.  It does have some odd line breaks and some misplaced numbers, but on the whole, the converted book is much easier to read, especially on small mobile devices.   Even images get included inline, so you shouldn’t be missing anything from the original eBook. Conclusion Calibri makes it simple to read your eBooks in any format you need. It is a project that is in constant development, and updates regularly adding better stability and features.  Whether you want to ready your PDF eBooks on a Sony Reader, Kindle, netbook or Smartphone, your books will now be more accessible than ever.  And with thousands of free PDF eBooks out there, you’ll be sure to always have something to read. If you’d like some Geeky PDF eBooks, Microsoft Press is offering a number of free PDF eBooks right now.  Check them out at this link (Account Required). Download the Calibre eBook program Similar Articles Productive Geek Tips Format a String as Currency in C#Convert Older Excel Documents to Excel 2007 FormatShare OneNote 2010 Notebooks with OneNote 2007Install an RPM Package on Ubuntu LinuxConvert PDF Files to Word Documents and Other Formats TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips HippoRemote Pro 2.2 Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Nice Websites To Watch TV Shows Online 24 Million Sites Windows Media Player Glass Icons (icons we like) How to Forecast Weather, without Gadgets Outlook Tools, one stop tweaking for any Outlook version Zoofs, find the most popular tweeted YouTube videos

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  • Virtualbox: host only networking - proxy internet connection

    - by Russell
    I'll ask my question first, then give details about where I am coming from: Is it possible to use host only, then have ubuntu act as a proxy to provide internet access to windows? If so, how? I am trying to get the right combination of networking for my virtualbox windows client VM (win7). My host is ubuntu 10.10 (maverick). I believe I understand the basic network options (please correct me if I am incorrect): NAT - Host can't communicate with guest but guest has access to all host's adapters Host only - Separate adapter but guest has no net access Bridged - bridge an adapter in the host with the virtual adapter to give the host access to the host adapter I am trying to give my win guest internet access, but also access the host in a separate network. Bridged only works when the host is connected to the internet (this is a laptop) so when it's not connected the network is down. Thanks I appreciate your help.

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  • VS 2010: SP1

    - by xamlnotes
    SP1 for VS 2010 just hit the web today. Check it out at http://support.microsoft.com/kb/983509/en-usHTH This should fix lots of big and little things such as startup time, bugs and more. Plus there are tons of features in there too for web, xaml, and other application types.  I am really excited about the unit testing and load testing features that were added. Theres also an update for .Net 4 framework. And check out the new Silverlight performance wizard. Lots of really cool stuff. Get it today! Download it from here: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=11ea69cb-cf12-4842-a3d7-b32a1e5642e2

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  • Opinion on LastPass's security for the Average Joe [closed]

    - by Rook
    This is borderline on objective/subjective, but I'm posting it here since I'm more interested in objective facts, without going into too much technical details, than I am in user reviews of LastPass. I've always used offline ways for (password / sensitive data) storage, but lately I keep hearing good things about LastPass. Indeed, it is more practical having it always accessible from every computer you're using without syncing and related problems, but the security aspect still troubles me. How (in a nutshell for dummies) does LastPass keep your data secure / can their employees see your data, and what is your opinion for such storage of more than usual keeping of sensitive data (bank PIN codes, some financial / business related stuff and so on - you know, the things that would practically hurt if lost / phished)? What are your opinions of it, and do you trust it for such? Any bad experiences? If someone for example is sniffing your wifi network, would such data be easier than usual to sniff out?

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  • Azure Storage Explorer

    - by kaleidoscope
    Azure Storage Explorer –  an another way to Deploy the services on Cloud Azure Storage Explorer is a useful GUI tool for inspecting and altering the data in your Azure cloud storage projects including the logs of your cloud-hosted applications. All three types of cloud storage can be viewed: blobs, queues, and tables. You can also create or delete blob/queue/table containers and items. Text blobs can be edited and all data types can be imported/exported between the cloud and local files. Table records can be imported/exported between the cloud and spreadsheet CSV files. Why Azure Storage Explorer Azure Storage Explorer is a licensed CodePlex project provided by Neudesic – a Microsoft partner.  It is a simple UI that requires you to input your blob storage name, access key and endpoints in the Storage Settings dialog. For more details please refer to the link: http://azurestorageexplorer.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=35189   Anish, S

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  • OTN Database Developer Day in LA/OC

    - by shay.shmeltzer
    We are taking a little break from the Fusion OTN Developer Days, and instead we'll be taking part in several OTN Developer Days ran by the database team. The aim is to show what Oracle has to offer to various developer groups. As you might guess we specifically are going to be in the Java track. Specifically we are running a lab that will get you to experience Oracle JDeveloper (or OEPE) and will show you how to build an application based on EJB/JSF with Ajax UI. I'm going to be in the upcoming event on May 5th - if you are in the LA area and haven't experienced JDeveloper yet - come in and see what it is all about. Details here.

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  • Unable to delete file from read-only file system

    - by tech
    I cannot delete files, when I tried to delete the file, this message appeard: "Error while deleting. There was an error deleting file2.rar." This is what I get from clicking on SHOW MORE DETAILS: "Error removing file: Read-only file system" This is what I've tried so far: delete from the downloads directory from my user. deleting permanently, but it does not work. EDIT When trying to remount it as read/write I get this error: jianyue@jianyue:~$ sudo mount -o remount,rw /media/A88F-8788 [sudo] password for jianyue: sudo: unable to open /var/lib/sudo/jianyue/1: Read-only file system mount: can't find /media/A88F-8788 in /etc/fstab or /etc/mtab

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  • Please Help with ATI Radeon 4250 and Xinerama

    - by Luis Enrique
    I am using ubuntu 11.10 fresh install and I am having problems making the second screen to work, I remember before I was able to do it by extending the desktop to a larger number like 3840 X 1080 but since I am new I completely forgot how to do it, Now I have a philips 230 E monitor full 1920 X 1080 and a Toshiba tv HDMI and I want to activate the second monitor to be able to use Xinerama but I don't know how to go about this, I want to keep the Phillips as a primary monitor since it's the smaller one and use the TV from time to time to play videos movies and presentations. I installed all the additional drivers and don't know what else to do. I would prefer if I can use a list of exact commands to copy and paste onto the terminal since that is all I know how to use LOL . Thank you so much for your help. If you need more details of my mother board or video card or cpu just ask thank you. Luis

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  • Oracle Database 11g Underground Advice for Database Administrators, by April C. Sims

    - by alejandro.vargas
    Recently I received a request to review the book "Oracle Database 11g Underground Advice for Database Administrators" by April C. Sims I was happy to have the opportunity know some details about the author, she is an active contributor to the Oracle DBA community, through her blog "Oracle High Availability" . The book is a serious and interesting work, I think it provides a good study and reference guide for DBA's that want to understand and implement highly available environments. She starts walking over the more general aspects and skills required by a DBA and then goes on explaining the steps required to implement Data Guard, using RMAN, upgrading to 11g, etc.

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  • Friends, Food, and Fun at the My Oracle Support Community Meetup

    - by Oracle OpenWorld Blog Team
    By Leslie McNeillJoin us at the third annual My Oracle Support Community Meetup for food and drink, fun and conversation After a long day at Oracle OpenWorld, take time to relax and meet your peers in the My Oracle Support Community and some of the Oracle employees who moderate the community. The Meetup event is a great place to get together before dinner, or spend the evening getting to know other Community members and Oracle Support Moderators in person. Not a My Oracle Support Community member yet? Joining is easy - Oracle Premier Support customers can log in with the same account they use to access My Oracle Support to begin taking advantage of the resources the Community offers. If you're an Oracle Premier Support customer but don’t yet have a login, talk to the Customer User Administrator (CUA) at your company now to get access to the Oracle proactive portfolio, including My Oracle Support Community. Oracle Premier Support Customers need to register to receive their invitation to the Meetup and find out the details. Visit the Customer Support Services Oracle OpenWorld Website to discover how you can take advantage of all Oracle OpenWorld has to offer.

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  • Siebel Open UI Training for Oracle EMEA CRM Partners - Free - Utrecht NL- January 22/23 2012

    - by Richard Lefebvre
    Have you heard about Siebel Open UI? It is the new, state-of-the-art User Interface for Siebel, offering an amazing User Experience on any browser. Oracle is planning a free of charge 2 days training, delivered by Oracle Product Development specialists, in Utrecht (NL) on January 22&23 2012. Seats are very limited. If you or your colleagues are interested to apply for one, please send an eMail to [email protected] with the contact details of the individuals who you would like to nomminate. If you would like to know more about Siebl Open UI before applying, please send an eMail to [email protected] to receive a short PPT deck featuring a short Siebel Open UI description, its benefits for (System Integrators) partners, and the detailed agenda.  Selected Participants will then be invited to register via the Oracle APEX system.

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  • .NET Security Part 2

    - by Simon Cooper
    So, how do you create partial-trust appdomains? Where do you come across them? There are two main situations in which your assembly runs as partially-trusted using the Microsoft .NET stack: Creating a CLR assembly in SQL Server with anything other than the UNSAFE permission set. The permissions available in each permission set are given here. Loading an assembly in ASP.NET in any trust level other than Full. Information on ASP.NET trust levels can be found here. You can configure the specific permissions available to assemblies using ASP.NET policy files. Alternatively, you can create your own partially-trusted appdomain in code and directly control the permissions and the full-trust API available to the assemblies you load into the appdomain. This is the scenario I’ll be concentrating on in this post. Creating a partially-trusted appdomain There is a single overload of AppDomain.CreateDomain that allows you to specify the permissions granted to assemblies in that appdomain – this one. This is the only call that allows you to specify a PermissionSet for the domain. All the other calls simply use the permissions of the calling code. If the permissions are restricted, then the resulting appdomain is referred to as a sandboxed domain. There are three things you need to create a sandboxed domain: The specific permissions granted to all assemblies in the domain. The application base (aka working directory) of the domain. The list of assemblies that have full-trust if they are loaded into the sandboxed domain. The third item is what allows us to have a fully-trusted API that is callable by partially-trusted code. I’ll be looking at the details of this in a later post. Granting permissions to the appdomain Firstly, the permissions granted to the appdomain. This is encapsulated in a PermissionSet object, initialized either with no permissions or full-trust permissions. For sandboxed appdomains, the PermissionSet is initialized with no permissions, then you add permissions you want assemblies loaded into that appdomain to have by default: PermissionSet restrictedPerms = new PermissionSet(PermissionState.None); // all assemblies need Execution permission to run at all restrictedPerms.AddPermission( new SecurityPermission(SecurityPermissionFlag.Execution)); // grant general read access to C:\config.xml restrictedPerms.AddPermission( new FileIOPermission(FileIOPermissionAccess.Read, @"C:\config.xml")); // grant permission to perform DNS lookups restrictedPerms.AddPermission( new DnsPermission(PermissionState.Unrestricted)); It’s important to point out that the permissions granted to an appdomain, and so to all assemblies loaded into that appdomain, are usable without needing to go through any SafeCritical code (see my last post if you’re unsure what SafeCritical code is). That is, partially-trusted code loaded into an appdomain with the above permissions (and so running under the Transparent security level) is able to create and manipulate a FileStream object to read from C:\config.xml directly. It is only for operations requiring permissions that are not granted to the appdomain that partially-trusted code is required to call a SafeCritical method that then asserts the missing permissions and performs the operation safely on behalf of the partially-trusted code. The application base of the domain This is simply set as a property on an AppDomainSetup object, and is used as the default directory assemblies are loaded from: AppDomainSetup appDomainSetup = new AppDomainSetup { ApplicationBase = @"C:\temp\sandbox", }; If you’ve read the documentation around sandboxed appdomains, you’ll notice that it mentions a security hole if this parameter is set correctly. I’ll be looking at this, and other pitfalls, that will break the sandbox when using sandboxed appdomains, in a later post. Full-trust assemblies in the appdomain Finally, we need the strong names of the assemblies that, when loaded into the appdomain, will be run as full-trust, irregardless of the permissions specified on the appdomain. These assemblies will contain methods and classes decorated with SafeCritical and Critical attributes. I’ll be covering the details of creating full-trust APIs for partial-trust appdomains in a later post. This is how you get the strongnames of an assembly to be executed as full-trust in the sandbox: // get the Assembly object for the assembly Assembly assemblyWithApi = ... // get the StrongName from the assembly's collection of evidence StrongName apiStrongName = assemblyWithApi.Evidence.GetHostEvidence<StrongName>(); Creating the sandboxed appdomain So, putting these three together, you create the appdomain like so: AppDomain sandbox = AppDomain.CreateDomain( "Sandbox", null, appDomainSetup, restrictedPerms, apiStrongName); You can then load and execute assemblies in this appdomain like any other. For example, to load an assembly into the appdomain and get an instance of the Sandboxed.Entrypoint class, implementing IEntrypoint, you do this: IEntrypoint o = (IEntrypoint)sandbox.CreateInstanceFromAndUnwrap( "C:\temp\sandbox\SandboxedAssembly.dll", "Sandboxed.Entrypoint"); // call method the Execute method on this object within the sandbox o.Execute(); The second parameter to CreateDomain is for security evidence used in the appdomain. This was a feature of the .NET 2 security model, and has been (mostly) obsoleted in the .NET 4 model. Unless the evidence is needed elsewhere (eg. isolated storage), you can pass in null for this parameter. Conclusion That’s the basics of sandboxed appdomains. The most important object is the PermissionSet that defines the permissions available to assemblies running in the appdomain; it is this object that defines the appdomain as full or partial-trust. The appdomain also needs a default directory used for assembly lookups as the ApplicationBase parameter, and you can specify an optional list of the strongnames of assemblies that will be given full-trust permissions if they are loaded into the sandboxed appdomain. Next time, I’ll be looking closer at full-trust assemblies running in a sandboxed appdomain, and what you need to do to make an API available to partial-trust code.

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  • Can I configure a visual difference view with the notifications provided by TFS?

    - by John Kaster
    I have TFS sending me alerts whenever someone on my team checks in code. (I had to create notification rules for every project, but that's just a sidebar complaint in this question.) These alerts provided some information on who checked in the files when, and what files have changed, with urls to view details in a browser. The thing that baffles me is that I can't just click on the source file and see a visual diff of the changes. There's no link that will auto-launch a diff in Visual Studio (using a custom protocol) from there either. Is there a way to configure TFS to provide a visual diff of the changes to the file that was checked in via this notification UI?

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  • Course/Points to include in a educational session on Asp.net MVC 4 to be given to office colleagues

    - by bhuvin
    I am planning to take a educational session on ASP.NET MVC , now in this i am confused what all to include. Actually in office there are very less people who know about it, and are sort of closed to it. So want to take a session over it to give them a "Tip of the Iceberg". Now I want some suggestions to include into the session.And its just a 1 hour session. Dont wanna go about loading nitty gritty details. Just want to make them curious. So want some such content which amazes them. For eg : Catering same code for different devices like for mobiles.

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  • Join us at BIWA Summit 2013!

    - by mhornick
    Registration is now open for BIWA Summit 2013.  This event, focused on Business Intelligence, Data Warehousing and Analytics, is hosted by the BIWA SIG of the IOUG on January 9 and 10 at the Hotel Sofitel, near Oracle headquarters in Redwood City, California. Be sure to check out our featured speakers, including Oracle executives Balaji Yelamanchili, Vaishnavi Sashikanth, and Tom Kyte, and Ari Kaplan, sports analyst, as well as the many other internationally recognized speakers.  Hands-on labs will give you the opportunity to try out much of the Oracle software for yourself (including Oracle R Enterprise)--be sure to bring a laptop capable of running Windows Remote Desktop.  There will be over 35 sessions on a wide range of BIWA-related topics.  See the BIWA Summit 2013 web site for details and be sure to register soon, while early bird rates still apply.

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