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  • How to access vm inside a vm via VNC?

    - by can.
    For some reasons I installed virtual machines inside a virtual machine, like this: A( B( C )) where A is the physical machine, B is a vm and the network type is NAT. And C is also a virtual machine and the network type is bridged. The OSes are Ubuntu 12.04 and the hypervisors are kvm. I can access B via VNC and via ssh from A, but for C I can't use ssh because C has no IP address at the start. And I assume I can only access C via VNC. I tried something like(on A): iptables -t nat -A PREROUTING -d $ip-of-A -p tcp --dport 6500 -j DNAT --to-destination $ip-of-B:5900 (I referred to this) But it doesn't work. And I'm reading the man pages of iptables and hope someone could help :)

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  • Copied XEN vm to new host - boots up asking to fix the HD (win2003 guest)

    - by Mister IT Guru
    I have an old box running CentOS 5.4, and XEN. It has a 2003 Guest that I wish to move over to another CentOS box running XEN. I stopped the machine, and have SCP'd the HD image files of the guest to the new host. I ran md5sum on the files, and they are identical. When I configure a new Guest, it fires up, but windows fails to boot asking to fix the system instead. The HD are identical, so I'm guessing there is something that I missed. I don't want to go through this procedure, because the system needs to be identical. How can I get one VM to run seamlessly on another host? Any ideas, and comments are 100% appreciated. Thank You

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  • Windows backups to VM Esxi

    - by Martyn
    I'm very new to ESXi, so apologies if this is a silly question. I have ESXi 5.1 running running on HP Proliant Microserver with internal LUNs RAIDed with HP P410 Smart Array card. I have 2 Windows Server 2012 VMs running as Domain controllers. These are being backed-up up with GhettoVCB to a dedicated datastore hosted on LUNs on a eSata external device. I have several Windows 8 & 7 PC's connected to this domain. I want to back up these Windows PCs, via the built in backup software, ideally to the external eSata device as well. What do I need to do to have the Windows PC's see the datastore? I assume I could create a VM for FreeNas or something, or share out the datastore via one of the Windows Server 2012 VMs. Both those options seem a little bit of an over kill?

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  • Easiest (free) way to get VM hosting Windows OS, on Windows 7 Ultimate 64bit

    - by John
    I'm a software developer and my workstation is running Win7 Ultimate, 64bit. I want to run a virtual PC on which I can deploy and run the web-software I create, as a virtual web-server PC. I want the VM to also be Windows as that's what I know, the version isn't too important but on that PC I want to run things like MySQL, TomCat, etc. I see VMWare make 'Player', also I see VirtualBox and I know MS also have solutions too, which I've heard good things about. Does it make much difference which I use as far as creating & using VMs? Or are they all pretty similar?

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  • VPN (PPTP) in Virtual Machine (WinXP in VM Workstation 8 )

    - by user1059617
    i am trying to establish a VPN Connection in my GuestOS. But i get a timeout every Time. The Host : Win 7 The Guest: WinXp Software: VM-Workstation 8 The GuestOS is bridged to the Host network and has his own IP. The normal Connection in the GuestOS works fine but when i try to establish the VPN (no Programm used , just simple Windows VPN) i get an timeout? But i can establish the VPN from the Host without any problems... Any Ideas here? Thanks Ps:(If it matters: The VPN is PPTP from StrongVPN)

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  • Permission based Authorization vs. Role based Authorization - Best Practices - 11g

    - by Prakash Yamuna
    In previous blog posts here and here I have alluded to the support in OWSM for Permission based authorization and Role based authorization support. Recently I was having a conversation with an internal team in Oracle looking to use OWSM for their Web Services security needs and one of the topics was around - When to use permission based authorization vs. role based authorization? As in most scenarios the answer is it depends! There are trade-offs involved in using the two approaches and you need to understand the trade-offs and you need to understand which trade-offs are better for your scenario. Role based Authorization: Simple to use. Just create a new custom OWSM policy and specify the role in the policy (using EM Fusion Middleware Control). Inconsistent if you have multiple type of resources in an application (ex: EJBs, Web Apps, Web Services) - ex: the model for securing EJBs with roles or the model for securing Web App roles - is inconsistent. Since the model is inconsistent, tooling is also fairly inconsistent. Achieving this use-case using JDeveloper is slightly complex - since JDeveloper does not directly support creating OWSM custom policies. Permission based Authorization: More complex. You need to attach both an OWSM policy and create OPSS Permission authorization policies. (Note: OWSM leverages OPSS Permission based Authorization support). More appropriate if you have multiple type of resources in an application (ex: EJBs, Web Apps, Web Services) and want a consistent authorization model. Consistent Tooling for managing authorization across different resources (ex: EM Fusion Middleware Control). Better Lifecycle support in terms of T2P, etc. Achieving this use-case using JDeveloper is slightly complex - since JDeveloper does not directly support creating/editing OPSS Permission based authorization policies.

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  • Regarding "Conflicting changes to the role" Exception

    - by Anis Ghee
    Hi, Actually I am getting an exception "Conflicting changes to the role 'TableName' of the relationship 'DataModel.FK_TableName_RelateTableName' detected" when ApplyChanges method is called from the ObjectContext. I dont have any idea what this exception is all about. I just wanted to know the cause of this exception. Thanks, Burhan Ghee

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  • book "Programming Role Playing Games with DirectX 2nd edition" and newer DirectX api

    - by numerical25
    I got the book "Programming Role Playing Games with DirectX 2nd edition" and I notice there are things in the book that are now considered deprecated. There is a whole Section on DirectPlay. And as much as I would like to avoid this section, I am afraid it might screw up the entire engine he is trying to build. So I was just curious to know even though DirectPlay is considered deprecated by XNA, and directX10. Is it possible to use it still in DirectX 9 ??

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  • Best Role-Based Access Control (RBAC) database model

    - by jhs
    What is the best database schema to track role-based access controls for a web application? I am using Rails, but the RBAC plugin linked by Google looks unmaintained (only 300 commits to SVN; latest was almost a year ago). The concept is simple enough to implement from scratch, yet complex and important enough that it's worth getting right. So how do others architect and implement their RBAC model?

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  • How do you handle EF Data Contexts combined with asp.net custom membership/role providers

    - by KallDrexx
    I can't seem to get my head around how to implement a custom membership provider with Entity Framework data contexts into my asp.net MVC application. I understand how to create a custom membership/role provider by itself (using this as a reference). Here's my current setup: As of now I have a repository factory interface that allows different repository factories to be created (right now I only have a factory for EF repositories and and in memory repositories). The repository factory looks like this: public class EFRepositoryFactory : IRepositoryFactory { private EntitiesContainer _entitiesContext; /// <summary> /// Constructor that generates the necessary object contexts /// </summary> public EFRepositoryFactory() { _entitiesContext = new EntitiesContainer(); } /// <summary> /// Generates a new entity framework repository for the specified entity type /// </summary> /// <typeparam name="T">Type of entity to generate a repository for </typeparam> /// <returns>Returns an EFRepository</returns> public IRepository<T> GenerateRepository<T>() where T : class { return new EFRepository<T>(_entitiesContext); } } Controllers are passed an EF repository factory via castle Windsor. The controller then creates all the service/business layer objects it requires and passes in the repository factory into it. This means that all service objects are using the same EF data contexts and I do not have to worry about objects being used in more than one data context (which of course is not allowed and causes an exception). As of right now I am trying to decide how to generate my user and authorization service layers, and have run against a design roadblock. The User/Authization service will be a central class that handles the logic for logging in, changing user details, managing roles and determining what users have access to what. The problem is, using the current methodology the asp.net mvc controllers will initialize it's own EF repository factory via Windsor and the asp.net membership/role provider will have to initialize it's own EF repository factory. This means that each part of the site will then have it's own data context. This seems to mean that if asp.net authenticates a user, that user's object will be in the membership provider's data context and thus if I try to retrieve that user object in the service layer (say to change the user's name) I will get a duplication exception. I thought of making the repository factory class a singleton, but I don't see a way for that to work with castle Windsor. How do other people handle asp.net custom providers in a MVC (or any n-tier) architecture without having object duplication issues?

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  • ClientRoleProvider and role caching...

    - by Kieron
    Hi, Is it possible to disable to the role caching when using the ClientRoleProvider? The application in question is a console application... I've tried setting 'cacheRolesInCookie' to false (I know it's a console app, but I was running low on ideas!) - but it had no affect.

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  • books or online resources to prepare for .NET interviews for senior developer role

    - by RKP
    Hi, can you suggest some good books or online resources (FAQ or articles) to prepare for .NET interviews (.NET concepts, ASP.NET, C# etc) for senior developer role? something to refresh the concepts, not too much detailed. there could be stuff I haven't done before (that applies to everyone), so at least knowing little bit about it, will definitely help. google search shows me some website with lots of QA, but they are not authentic (I found some answers inaccurate). thanks in advance.

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  • Role of Combinators in Concatenative/Tacit Programming Languages.

    - by Bubba88
    Hi! I have a question about what exact role do higher-order compinators (or function producers) hold in concatenative/tacit programming. Additionally I would like to ask if there is another way to implement concatenative programming language rather than directly manipulating the stack. This might look like a newbie question, so if you feel like it, you can freely direct me to external source.

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  • How to change granted role temporarily to achieve "view the site as" someone else

    - by Roy Chan
    Hi Gurus, We are using 2.x spring security right now. I am asked to build an admin tool so that the ROLE_ADMIN can change to any user in the site and view the site as that person (each person on the site may see different stuff depending on the role which is dynamically granted base on the database) and of course the admin should be able to switch back to admin without logging in. Is there a build in function, if not how should I do this? Thanks in advance!

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  • Make VM Machine Name Visible to Host

    - by Agnel Kurian
    I have Ubuntu running in VMware Player. I am able to access an Apache instance on this VM by using the IP address but not by machine name. How do I make the name of the VM visible to the host? Edit: How do I add the machine name to my DNS? I am running within a Windows network.

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  • iOS: how to understand the role of rootviewcontroller and its relationship with other objects

    - by Anthony Kong
    I have created a UISplitViewController based iOS app in XCode 3.2.5 Below is a screen shot of Interface builder showing the rootviewcontroller and how it is linked to other objects. Being a beginner myself, I do not understand: 1) What is the role of the rootviewcontroller? Searched the documentation but what I found did not answer this question. 2) I thought a IBOutlet should only link to one corresponding object. Why in this case the rootviewcontroller is linked to two?

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  • Show or hide fields depending on the Acl9 role - Ruby on Rails

    - by Michaël
    Hi, I am using Acl9 to manage the roles and I want to hide the checkbox usertype if the user has the role :customer and show it if the role is :manager. I want that just the :manager can edit all the fields and some for the :customer. Thank you for your help! <h1>Editing user</h1> <% form_for(@user) do |f| %> <%= f.error_messages %> <p> <%= f.label :usertype %><br /> <%= f.check_box :usertype %> </p> <p> <%= f.label :surname %><br /> <%= f.text_field :surname %> </p> <p> <%= f.label :firstname %><br /> <%= f.text_field :firstname %> </p> <p> <%= f.label :phone %><br /> <%= f.text_field :phone %> </p> <p> <%= f.label :email %><br /> <%= f.text_field :email %> </p> <p> <%= f.label :registrationdate %><br /> <%= f.datetime_select :registrationdate %> </p> <p> <%= f.label :login %><br /> <%= f.text_field :login %> </p> <p> <%= f.label :password %><br /> <%= f.text_field :password %> </p> <p> <%= f.submit 'Update' %> </p> <% end %> <%= link_to 'Show', @user %> | <%= link_to 'Back', users_path %>

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