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  • Virtual Machines: What components should I upgrade to improve running virtual machines?

    - by joshsvoss
    at work I need to have one or sometimes two instances of a vmware virtual Windows 7 machine running on my real Windows 7 machine. The computer I'm using is Dell Precision 490 from 2009 I believe, possibly earlier. Running Windows 7 ultimate. Problems while running VM's: The entire computer slows down when a vmware instance is running. Pages take a while to react to a scroll, applications take forever to launch, and programs hang both in the virtual machines and on the real one. So, what components should I upgrade to improve this? I guess a more pointed question would be, which components will help the most? Possible options: Getting 8gb of RAM instead of 4gb new graphics card new processors? (Is that really an option?) My intuition tells me it will be a combination of the RAM and graphics card. There is also the possibility that an '09 tower just isn't cut out for vm's and our business should purchase a new tower.

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  • Help about NAT with virtual server

    - by Thanh Tran
    I have a dedicated server running Linux CentOS 5.3 with 2 IP addresses. I've installed a virtual machine using VMware Server. The host and the guest have a host-only network. Now I want to map the 2nd IP address to the virtual machine so that it can run as a second dedicated server for me. Here is what I do: modprobe iptable_nat echo "1" > /proc/sys/net/ipv4/ip_forward iptables -t filter -A FORWARD -s 192.168.78.128 -d 64.85.164.184 -j ACCEPT iptables -t nat -A PREROUTING -d 64.85.164.184 -i eth0 -j DNAT --to-destination 192.168.78.128 iptables -t nat -A POSTROUTING -s 192.168.78.128 -o eth0 -j SNAT --to-source 64.85.164.184</p> But it not working as intended. What is the matter?

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  • Dual-bootable Virtual Machine

    - by ojrac
    My work computer is a Linux desktop with a Windows 7 virtual machine for Visual Studio and IE testing. I'm very picky, and I don't want to configure two Windows installs... but I can't think of a way to do this without running afoul of Windows activation. I've already set up VirtualBox to run my VM off a physical hard drive, and grub isn't too hard to configure. But it'd be a waste of time without solving the activation problem. Is there any way I can boot into a single install of Windows as a virtual machine and on actual hardware without having to reactivate (until I'm eventually flagged as a pirate) every time I switch between the two? Is there any MS-endorsed way to use a single installed license with two sets of hardware?

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  • OpenBSD in a virtual box as a firewall

    - by Ali
    Is there any merit in installing a virtual machine with OpenBSD and pf (or any other simple and secure OS + iptable) on a mac laptop and routing all the traffic through that machine? I read a similar set up for corporate laptops running windows (I thing I read this in BSD magazine). They claim that Windows machines are too hard to secure and if you are taking them to the wild (public wireless, hotels, ...) you'd better but a secure OS in between! If you think this is a good idea, how you route all the traffic on a mac through the virtual machine and prevent any application or service to go directly? I am not sure if just setting the gateway will do that, what about DNS? you don't want anybody to fool you with DNS cache poisoning or similar attacks either.

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  • How to create a virtual input in windows from an audio stream

    - by Brian
    Great to find this forum full of knowledge. I was wondering if anyone knew of an application or other work around to create a virtual input device in windows. I have a IP cam app on my android phone, that I would like to use for skype webcam. It comes with a port for getting the video feed into skype, and that works great. However, the only audio available, is a OGG stream. Both video and audio work great with media players such as VLC etc, but ot with skype, since skype only works with windows input devices. Is there such software outthere, in which I could simply name my audio stream address, and pipe that to a virtual input device to allow skype to find it?

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  • Virtual Machine Performance - More RAM or More Processor?

    - by webworm
    When looking to improve Virtual Machine performance what would be better ... Increasing the available RAM or increasing the processor power? Here is my choice ... Core 2 Duo @ 2.4 GHz with 8 GB RAM and integrated graphics (Mac Book Pro 13") Core i7 @ 2.6 GHz with 4 GB RAM and 512 MB dedicated graphics (Mac Book Pro 15") I plan to run Windows x64 in the VM with SQL Server 2008, Visual Studio 2010, and SharePoint 2010. I am planning to run VMWare Fusion v3. I also didn't know if a dedicated graphics card makes a difference when using a Virtual Machine. Thank you.

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  • What are the limitations of virtual machines?

    - by j-g-faustus
    I'm considering setting up a virtual machine running Windows, with Ubuntu 10.10 as the host OS, for those cases where I have a Windows-only program. I understand that using a VM will lose some performance, but are there other limitations to what the OS in a virtual machine can do compared to "running on bare metal"? For example: Can a VM play games, like Dragon Age Origins or Civilization V? (Possibly with poorer framerates and/or lower resolution, but does it play at all?) Can a VM rip DVD/Blue-ray using AnyDVD or similar Windows program? Can a VM handle new hardware that requires dedicated drivers, but the drivers are only available for the OS running inside the VM? (Ex. graphics card, digital camera, card reader for smart card authentication.) Is it possible to say anything about "general limitations" of VMs, or is this wholly dependent on the specific VM?

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  • Distribute Windows (XP or 7) as virtual appliance

    - by User32
    I'm looking at ways that may be possible to distribute a Microsoft Windows (e.g. 7) virtual appliance (such as VMWare image) pre-configured and installed with a large application of mine. Is this possible? If not, is it perhaps best to ask clients to perform a virtual appliance installation on their site and then install my application via a script of some sort? For these kinds of scenarios I see that open source OSes are heavily used, but in my case I cannot use Linux or any other open source OS due to some requirements.

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  • Virtual PC 2007 Full Screen Resolution

    - by Swami
    I have a laptop (1440 x 900) and an external monitor (1920 x 1200), and I'm running Virtual PC 2007. Initially, my VPC could not switch to fullscreen mode on my external monitor because the max resolution for VPC was only 1600 x 1200. I installed a hotfix (http://support.microsoft.com/kb/958162) and after the hotfix, I was able to view VPC in fullscreen mode on my external monitor, but now I'm unable to view fullscreen on my laptop. It says "please check that the resolution of the guest is not higher than that of the host". I even tried to decrease the resolution of my Virtual PC to less than than of my laptop, but it always resets it back up. So now after the hotfix, I can view fullscreen mode only when my external monitor is plugged in. Any way I can resolve this?

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  • Hyper-V Virtual Disk Creation Taking Forver

    - by mnemosyn
    After some struggle, I finally managed to set up Hyper-V 2008 R2 on our server. So I connected to it using the Hyper-V Manager from a Windows 7 client and used the "New Virtual Machine Wizard". I set up a 350GB virtual hard disk. So I hit the "finish" button and the Hyper-V manager has been working for 24hours now, showing merely a dialog "Creating Disk". A console on the Hyper-V still reports 99.9% free space on the HD, but the machines HD LED flashes from time to time (making a rather idle impression, it's not flashing frenetically). Does this usually take this long? Is there a way to find out whether it's still working or just idling? Should I repeat the process? Guides on the net tell me to be patient, but 1d seems a bit extreme!?

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  • How to extend a window on 4 virtual desktops on Windows 7

    - by Patrice
    This site is very cool, and i often get many answers in it :) But today, I've a question for you. My Problem is: - I want to use a virtual desktop or resolution expander for windows 7 - I want to multiply per 2 a window resolution (i.e. seeing only 25% of one window on a screen) I tried simple tricks that didn't work for me, and installed a virtual desktop (Dexspot, a great one), but I can't manage to strech a window (Google chrome) over the 4 desktops simultaneously. Do you understand my problem, and have an answer to it? This would be great help ;-) See ya! Patrice

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  • Virtual Network Printer

    - by user113720
    I'm pretty new to Microsoft Servers so don't blame me if the question isn't that smart [I'm a Unix guy]. I need to install a Virtual Printer of a Microsoft Server 2008 r2. The requirements are: The printer must print on a file {whatever file... txt or pdf } The printer must run on a server The printer must accept plaintext from a specific IP:port The connection between the device that prints and the server is a local network I've tried to install a virtual printer, but I cannot specify the constraint about the socket from which receive data to print. Thank you so much

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  • Joining a network with a Virtual Windows Server 2008 R2

    - by Triztian
    Hi all, here's my case, I have set up a share in a virtual windows server 2008 R2, the server is hosted by GoDaddy my question is, how do I access the server's public folders, I need to open a file locally (on the client) and to do that I need the server to show up in my Network locations, I have the right credentials and have created a special group that has access to the particular folder that I'm sharing the problem is I don't know how to add the server to my network locations. I have tried VPN Connection but it is my understanding that it cannot be done since it is virtual share server. Any help is trully appreciated.

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  • Unable to do Port Forwarding in Virtual Box

    - by dewbot
    I'm using Mac OS X 10.6. I have installed Virtual Box 4.1.0 in it. My Guest OS is Ubuntu Server 11.04. I have added a rule in Port Forwarding in Virtual Box - "guestssh" TCP 127.0.1.1 8080 127.0.0.1 1337 Inside Guest OS I'm running nodejs server. Code is nothing but simple helloworld code found on their site http://nodejs.org/. In short I'm running server on 127.0.0.1 on 1337 Port. Now according to rule I have given, from Host Machine all the requests for 127.0.1.1:8080 should be forwarded to 127.0.0.1:1337 of Guest OS. From Host I'm doing curl http://127.0.1.1:8080 and I'm getting curl: (7) couldn't connect to host Is there something am I doing wrong? Note- Don't give me suggestion to do ssh n all. As my ISP does not provide Internal LAN so its not possible in my case. All I can do it Port Forwarding.

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  • VirtualBox error with Ubuntu virtual machine

    - by user2985363
    I am trying to work on a coding project and cannot open my Ubuntu virtual machine with Oracle VM VirtualBox. I took a snapshot yesterday at about 11, and it was working fine. Several times I closed and reopened it. Today when I tried to open it, I kept getting the error below. Failed to open a session for the virtual machine Ubuntu 12.04 32-bit. VM cannot start because the saved state file 'C:\Users\Tyler\VirtualBox VMs\Ubuntu 12.04 32-bit\Snapshots\2014-01-30T19-59-05-976647800Z.sav' is invalid (VERR_FILE_NOT_FOUND). Deleted the saved state prior to starting the VM. I tried deleting the file as it said, but none of the snapshots would open still. The file is still in my recycling bin. What can I do? Also, I took the 1/31 snapshot today before I deleted the previous one.

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  • Running Debian as a Virtual Machine Host

    - by Tone
    I have a need to run a linux server to host subversion, bugzilla over Apache and also act as a file and print server. I also have a need to host Windows Server 2008 virtual machines for development purposes (I'm a .NET guy). The machine I have is a dual core AMD 2.5 Ghz w/2GB RAM. So here are my questions: 1) Should I run Debian (or some other distro) as the base AND create a Debian VM to host subversion, bugzilla and be my file/print server? or is it ok to use Debian as both my VM host and for those other reasons? 2) VMWare has a free server edition, Virtual Box also is another free option. Which one of these is better suited for what I need to do? Are there any other free (or inexpensive) alternatives out there? 3) Will I need a GUI with Debian in order to manage my VMs? 4) Can I run VMs without a GUI to conserve system resources?

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  • Windows Virtual Machine ping reply fails the first few times

    - by user28471
    I am running a windows Web Server 2008 virtual machine. When I try to ping it from another windows machine the ping reply comes straight back with 100% success. But when I try to ping it from one of the Linux boxes, the ping reply fails with partial or 100% loss the first couple of time and succeeds the third time onwards. I know it is quite strange but can any one think anything that could be causing it. Could anything in the Windows Domain Security or Firewall be "taking time" to allow responding to the ping request? In fact even the firewall is turned off on the virtual machine.

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  • Virtual Inheritance Confusion

    - by alan
    I'm reading about inheritance and I have a major issue that I haven't been able to solve for hours: Given a class Bar is a class with virtual functions, class Bar { virtual void Cook(); } What is the different between: class Foo : public Bar { virtual void Cook(); } and class Foo : public virtual Bar { virtual void Cook(); } ? Hours of Googling and reading came up with lots of information about its uses, but none actually tell me what the difference between the two are, and just confuse me more. Thanks!

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  • intelligent path truncation/ellipsis for display

    - by peterchen
    I am looking for an existign path truncation algorithm (similar to what the Win32 static control does with SS_PATHELLIPSIS) for a set of paths that should focus on the distinct elements. For example, if my paths are like this: Unit with X/Test 3V/ Unit with X/Test 4V/ Unit with X/Test 5V/ Unit without X/Test 3V/ Unit without X/Test 6V/ Unit without X/2nd Test 6V/ When not enough display space is available, they should be truncated to something like this: ...with X/...3V/ ...with X/...4V/ ...with X/...5V/ ...without X/...3V/ ...without X/...6V/ ...without X/2nd ...6V/ (Assuming that an ellipsis generally is shorter than three letters). This is just an example of a rather simple, ideal case (e.g. they'd all end up at different lengths now, and I wouldn't know how to create a good suggestion when a path "Thingie/Long Test/" is added to the pool). There is no given structure of the path elements, they are assigned by the user, but often items will have similar segments. It should work for proportional fonts, so the algorithm should take a measure function (and not call it to heavily) or generate a suggestion list. Data-wise, a typical use case would contain 2..4 path segments anf 20 elements per segment. I am looking for previous attempts into that direction, and if that's solvable wiht sensible amount of code or dependencies.

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  • How to minimize total cost of shortest path tree

    - by Michael
    I have a directed acyclic graph with positive edge-weights. It has a single source and a set of targets (vertices furthest from the source). I find the shortest paths from the source to each target. Some of these paths overlap. What I want is a shortest path tree which minimizes the total sum of weights over all edges. For example, consider two of the targets. Given all edge weights equal, if they share a single shortest path for most of their length, then that is preferable to two mostly non-overlapping shortest paths (fewer edges in the tree equals lower overall cost). Another example: two paths are non-overlapping for a small part of their length, with high cost for the non-overlapping paths, but low cost for the long shared path (low combined cost). On the other hand, two paths are non-overlapping for most of their length, with low costs for the non-overlapping paths, but high cost for the short shared path (also, low combined cost). There are many combinations. I want to find solutions with the lowest overall cost, given all the shortest paths from source to target. Does this ring any bells with anyone? Can anyone point me to relevant algorithms or analogous applications? Cheers!

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