A virtual machine is an emulation of a guest operating system, running on virtualized hardware within a host operating system.

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Windows 10 Auto-Activation on Virtual Machines

The Windows 10 auto-activation system is quite nice: you no longer need to type in serial numbers to re-install the OS on the same machine - the machine's identity is used to activate it. When doing ...
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Intel HD Graphics, Switchable Graphics, and 3D Acceleration in Virtual Machine

In my system I have two Display Adapters in a Host with Windows 10: Intel HD Graphics 4000 AMD Radeon HD 7600M Series The DirectX Diagnostic Tool showed that: Intel is Full Display Device Type ...
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Interface not showing up in airmon-ng

I'm running a virtual Kali machine on VirtualBox and want to connect my USB WiFi adapter to said VM. Here are some details: Host OS: Windows 8.1 Guest OS: Kali Linux 1.1.0a (amd64) USB Adapter: ...
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7 views

Getting UEFI shell when trying to boot OS X in Virtual Box

I am using the latest test build of Virtual Box (normal versions don't work on El Capitan). When trying to boot a Virtual Machine with an El Capitan cdr file (created from the command line) I end up ...
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Virtual machines and remote desktop [on hold]

The situation is - I need to do some coding remotely. Im not really sure how to approach this issue and I hope you would give some guidance. I do have capable PC at home that I could just remotely ...
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19 views

Is there a bare-metal hypervisor that allow you to manage VMs from the Server?

We're looking to demo our network architecture using a single machine. To do this I hope to run a handful of VMs that mirror our network. In order to save on resources, rather than using a ...
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23 views

Virtual Machine or a Cloud Server without IP Address?

Is it possible to create a virtual machine or a cloud server on a dedicated server without IP address, for example with a hostname, or something else? The reason I'm asking this is because I want to ...
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22 views

Running a VPN inside a Linux VM, connect from host to encrypt traffic

Is it possible to run a VPN inside a Linux VM that a host would connect to in order to protect traffic on an unsecured network? Or is the traffic that the VM VPN tunnel sends going to be unencrypted ...
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Virtual Box OSX host, Windows 7 Guest Host-Only Network appears as Unidentified network

I'm trying to set up communication between my guest Windows 7 and host OSX machines. I have virtualbox configured with a vboxnet0 Host-only network with the following settings: IPv4 Address: ...
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17 views

Reset motherboard after sleep

I have a problem with my computer. I put my computer in sleep mode. When I want woke up my computer, the screen turn on and stay black. After that I need to power off the computer with shutting the ...
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Internet access on Hyper-V & Windows Server 2012 r2 WITHOUT a physical router

Hey I've been searching for two weeks for an easy way to set up internet access to virtual machines that are hosted on Hyper-V that is on my Windows Server 2012 r2 machine. The physical server ...
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virtualbox stopped sharing mouse and clipboard between host OS and VM

I have virtualbox 4.3.28 installed on MS Windows, with CentOS installed in a VM inside virtualbox. For some time, I have been able to share the mouse and the clipboard between the host OS and the VM ...
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41 views

How to increase usb transfer speed on VMware ESXi 6.0?

I have some Linux and Windows VMs on ESXi. I put external HDD to usb-port on ESXi server and added this drive to VM. Windows VM copied one big file to this drive with 30MB/s speed (drive was ...
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13 views

Setting up OpenStack environment on virtual machines

I am learning OpenStack for almost a week. After reading most of OpenStack wiki, my mind still blurry at some point. However it is said OpenStack nodes could be installed on virtual machines (VMs) for ...
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How do I use a prebuilt virtual machine?

I downloaded prebuilt virtual machines of Windows 7 and XP. I'm trying to run them in VMware, but I don't know how to use a prebuilt VM. How do I get them to work?
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25 views

Problems with local networking on Kali Linux

I installed Kali Linux on VirtualBox recently. I do not have an external adapter; only my internal adapter. The problem is when I set “VirtualBox -> Settings -> Network ->Adapter1 -> NAT” I can ...
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10 views

Can there be multiple persistent scsi names for the same device?

I'm working on a product that runs on a CentOS 6 VM running on ESX 6. As part of the installation, we attach hard drives a pass-through RDMs to the VM and then make partitions on the drive using GPT. ...
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43 views

Create windows 10 VM with 8.1 key without upgrade [duplicate]

I would like to create a Windows 10 VM. I just have a Windows 8.1 key, but I don't have it installed because I am using Ubuntu. The question is if I can install the W10 VM upgrading the old key, ...
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How can I manually engage turbo on my processor when running Windows (Server 2008 R2) as a VM?

An application I run is heavily dependent upon raw processor speed as opposed to use of multiple cores. The processors in my VM host have a base of 2.9 and can turbo up to 3.3, but it appears Windows ...
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20 views

setup http server,DNS ,mail server using virtualbox [closed]

I want to learn how internet work. So I want to create a virtual network for this using oracle VirtualBox. Mainly I want to create 5 VM : VM1 --- DNS VM2 --- HTTP server VM3 --- mail server VM4 ...
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17 views

Restoring a Clonezilla Image to a VirtualBox VM

I have a Windows 7 host machine with virtualbox installed. I also have two external USB drives (we can call them DriveA and DriveB), DriveA has the image I want to restore to a vdi on DriveB. On ...
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18 views

Port Forwarding for 2 HTTP Servers (one of them is on VM)

I have a Dynamic DNS from noip.com and I have installed their client on my home server. I have also installed WAMPServer to use as an HTTP server (for testing purposes only as I'm a web developer) ...
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Hyper-V Import Tool System.Management.ManagementException on Connect

I have Windows 8.1 Pro and have successfully installed the Hyper-V Manager. I can open the manager and see my local machine and can see that the service is running. I am using the VMC Hyper-V Import ...
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The virtual machine could not be started because the hypervisor is not running

I can not start Hyper V virtual machines. I am getting following message: [Window Title] Virtual Machine Connection [Main Instruction] The application encountered an error while attempting to change ...
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Ethernet-Connection ubuntu with VMware Player

I installed VMware Player 7.1.2 on my Windows 7. On my VM I installed ubuntu 14.04. Now I have problems connecting to internet. With my computer I am connected with ethernet. Ubuntu can connect with ...
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Virtualbox Windows graceful shutdown of guests on host shutdown

I am trying to find a solution to gracefully shutdown any guest VMs running under VirtualBox Windows when the host computer is shut down or restarted. It seems that the safest option would be to ...
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19 views

Virtual Machine - Simulate SCSI HD Serial Number

I am a programmer and trying to create a function to get the serial number of HDs with SCSI interface. The problem is I do not have a SCSI HD to make tests, and they are very expensive, so I am trying ...
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VM apt-get install - network is unreachable

I have a Vagrant backed Ubuntu VM which I'm trying to do some performance testing on. In order to do so I'm trying to install gdb When I run apt-get install I see the following: ...
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Create “linked clone” or layered shared disks with QEMU

Does QEMU support a feature like VMware's "linked clone"? What I'm trying to accomplish: I'm setting up a test environment with a handful of VMs, that are all nearly identical. However, a fresh ...
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Keys getting stuck in virtualbox 5.0

Sometimes when I hold a key down or scroll too quickly with with my mousewheel, my virtual box VM will lock the key as pressed. The VM will then stop responding to any further input until (usually) I ...
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396 views

Program xxx tried to read /dev/mem between xxxxxx->xxxxxx

I've got a program that runs on RHEL 6.5 perfectly fine on a virtual machine generated with OpenStack. But since I updated my version of OpenStack (from Mirantis fuel 5.0 to 6.0) I have a new instance ...
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29 views

How to convert a VHD (Virtual Hard Disk) on Windows to a Dynamic Disk

I'm trying to convert a VHD (Virtual Hard Disk) to a Dynamic Disk but it doesn't seem to be possible. I tried DISKPART hoping there was some command-line way of achieving this but that also was in ...
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Why start power of machine in Oracle VM Virtual box fails with code 0x80004005?

I standartly power off virtual machine in Oracle virtual server (so other VM can run). When I tried to start it again I end up with E_FAIL (0x80004005). Failed to open a session for the virtual ...
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Is it a good idea to use the host computer as proxy of a virtual server hosted into it?

I plan to use a physical proxy between another physical server which is accesses via SSH, and the router, acting as firewall. Right now I just have 1 physical computer to use for this net structure, ...
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Windows7 VirtualBox VM transfered from Gentoo Linux host to Debian doesn't work anymore

I had VirtualBox 4.3.6_Gentoo_r91406 on my Gentoo distribution and two VM, a Windows XP one and a Windows 7 one, both still working when I boot on Gentoo. I have moved to Debian Jessie and have here ...
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Windows 7 on a virtual machine doesn't update

I can't update Windows 7 on a virtual machine, it says "Searching for updates" but it never updates. It's a clean install and I use VirtualBox, any ideas?
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Vagrant / VirtualBox, share mouse and keyboard (mouse integration)

I want to run my IDE within a Vagrant/VirtualBox VM. So I would like to open a view of the VM and interact with the IDE GUI as if it were running on my host. However I've only found two modes for the ...
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31 views

Remote desktop into Virtual Machine on Ubuntu Server through a Mac

I'm trying to remote desktop into a Windows virtual machine that is running on Ubuntu Server 14.04. I'm on OS X Yosemite and I can't figure out how to do it. I downloaded the app Microsoft Remote ...
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Find IP address of virtual machine in headless mode

I have 4 windows virtual machines running on Ubuntu Server 14.04 (No GUI) in headless mode. I need to find the IP address of each of them. The network is bridged. I tried the answers in ...
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How can I use my current Windows 10 partition on external HDD in VMware Fusion?

It is possible to use BOOTCAMP partition directly. But I want to use Windows from my external HDD directly. Is there any possible way?
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94 views

Dual boot Kali on windows 8.1

I am trying to dual boot Kali Linux with Windows 8.1 using VMware. I download the VM torrent from offensive security - http://images.kali.org/Kali-Linux-2.0.0-vm-amd64.7z I then extract the files. I ...
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23 views

Virtualization with UEFI'secure boot feature

I'm interested in the notion of emulating digital signature checks in virtual machines—the host can be booted without hardware-based digital signature checks, which can be moved to the VM, and the ...
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When using a VM in VirtualBox, different keys frequently seem to stick

Using a Windows 8 host, with VirtualBox 5.0 and an Ubuntu 14.04 guest. I'm using it as a development environment so it's typing intensive and this happens every couple of minutes. It starts with a ...
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11 views

Using multiple computers as a processing and data storage cluster

I have about 17 or so old computers that by themselves can't do much, but I was wondering if there was any way to combine them so that they could run multiple VMs in a distributed way. For example, ...
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92 views

No USB devices available in VirtualBox

Oracle VirtualBox is unable to list/filter the USB devices attached to my system. As a result, the guest OS is not able to see any USB device either. This is my configuration: Host: VirtualBox ...
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Memory not releasing after shutting down vm in Xen-4.5

I installed Xen-4.5.0 on a server with CentOS 6.5(v3.2.30 kernel). All works well except when I shutdown a vm, then xl li shows that the vm's memory is not released and physical memory becomes less ...
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VirtualBox won't save screenshots

VirtualBox 5.0, Windows 8.1 x32 Guest (via Modern.IE), Windows 7 Ultimate x64 Host, on a Macbook Pro 2011. To be clear, I definitely mean screenshots. I want to take a picture of the screen, not save ...
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seting up some windows10 pro kiosks?

I have a few windows 10 PCs for student use. Previously, I had windows XP installed where I was using deepfreeze. Basically, students could use the pc, but if they encountered malicious software, ...
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How do I open a VM I received in VirtualBox?

A lady "put together a virtual machine" that was supposed to include a certain software and related packages. I was given a folder of files (vmdk, log, vmxf, plist, vmsd, nvram, and png files) and ...
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Windows doesn't detect virtualization

CPU: Intel Core i3 3220 Motherboard: P8B75-M LX (BIOS version: 1403, final) OS: Windows 10 Education 64-bit Note: I have screenshots including BIOS settings but I can't add because of reputation ...