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

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Vagrant taking up too much space

I switch between four projects on my local machine and I use vagrant for each on of them. $ vagrant global-status id name provider state directory ...
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22 views

Adding virtual interfaces (not VLAN) in linux

for some software testing, I need 12 different IP addresses to contact, each one with a unique MAC address. I just set up an Arch Linux VM but I can't figure out, how to configure virtual network ...
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9 views

How to make redboot work with different network adapter?

I have several VM's running in libvirt/qemu-kvm and I need to run another one that was given in virtualbox format. I converted images and created almost the same config in libvirtd, VM starts but ...
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22 views

Issue with Virtual PC XP Image

I created a Win XP SP3 Virtual Image in a PC running Win XP SP3 using Microsoft Virtual PC 2007. The image works fine in XP. Now I copied the same XP SP3 Image to a Win 7 PC and installed MS Virtual ...
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11 views

VM Live Migration statistic tools

I've studied a lot regarding live migration of virtual machines. but i couldn't find any paper/reference/study mentioning any of the tools (they)used for logging or capturing statistics of VMs and ...
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1answer
94 views

I/O Crash Error in XenServer VM. What to do?

I just installed XenServer 6.2 and installed XenCenter in my own Windows and everything were set ok. I have 2TB 5400rpm SATA Hard Disk Drive, and I am trying to run 32 VMs at once using Xen ...
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41 views

What is the best Xen Hypervisor setup for my system [closed]

I am new to XEN, I have a Asus X99 deluxe, i7-5820K 16gb DDR4 and I want to run VM's just for personal use. I would like to know what distro/setup should I use, I know a bit of Debian and Ubuntu but I ...
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1answer
17 views

How can I force removal of a linked CD image in VirtualBox?

I recently was installing Fedora in a VM. The install went fine, so I moved the CD image off of my desktop into my general Linux ISOs folder. The next time I opened VirtualBox, I got an error saying ...
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134 views

VirtualBox suddenly eats gigabytes of memory

EDIT The original question had lots of speculation but it is all much simpler. See my own answer and this reported bug. I leave the original question in case someone is having similar issues and ...
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28 views

Disable buffering/caching for a file

I am executing some benchmarking using a DBMS and virtual machines. And I am using this command free && sync && echo 3 > /proc/sys/vm/drop_caches && free on each Guest, ...
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1answer
17 views

I want to start VM for specific time

I am designing a system in which lot of VMs are there which run on KVM. My physical resources are limited, that is why I want to allow some of the VMs to run for some specific time(say Every Wednesday ...
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136 views

debian - Working with modern openGL within a virtual machine

I want to train myself with modern OpenGL programming. I began with the following tutorial: http://lazyfoo.net/tutorials/SDL/51_SDL_and_modern_opengl/index.php (final sources are provided). However, I ...
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77 views

VirtualBox VDI's max size exceeds the host's hard drive size

I had a major oops moment that led to my VirtualBox guest VM's hard drive being larger than the host's hard drive. I rushed through reading the commands for resizing a virtual hard drive. As such, I ...
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11 views

vSphere Directpath NIC isolation

I am building an home server, and I am planning to use VMWare vSphere to create multiple OS that will have precise tasks on the server. On the server, I'd like to have a firewall-antivirus using ...
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0answers
24 views

XenServer Network Configuration

Question I have a single XenServer host and it has an 172.xx.xx.xx address from my office network. The host has access to the internet, and also can be managed from my desktop using XenCenter. Now I ...
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29 views

Setting up SQL Express on Azure VM

I'm trying to set up SQL express on an Azure VM. I already have SSMS 2012 installed but I cannot access .\SQLEXPRESS. This MSDN discussion says: run powershell script "ConfigureSQLExpress.ps1" ...
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59 views

Install Citrix Netscaler vpx 10 in VMWare

I am trying to install Citrix NetScaler vpx 10 for VMware. So i downloaded the Citrix NetScaler trial version from official website. It contained 3 files 1> .VMDK file 2> .OVF file 3> readme file I ...
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19 views

Ubuntu VM Hangs on Boot

I'm trying to boot to a Linux virtual machine in VMWare Workstation 10 for some web development work. I had some problems with the VM I was using. I tried reinstalling Ubuntu in a new VM, and after ...
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2answers
32 views

Get Rid Of App Switcher Tip Prompt In Virtual Machine

Running Windows 8.1 in a VMware Player virtual machine, and after launching a metro app I got this irritating tip: Swipe in from the edge to go back to the last app you were using. Since I'm ...
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109 views

Convert Windows 8 VirtualBox to Bootcamp Partition

I have installed Windows 8 as a Virtual Machine in Virtual Box a while ago. For performance reasons, I want to create a bootcamp partition from the VDI to avoid re-installation. Is this possible? And ...
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1answer
30 views

Install an application on Guest OS in Virtual Box

I'm very new to Visualization. In my workstation I don't have admin rights. I just wanted to install SQL Server 2008R2. Fortunately I have Virtual Box installed. So I installed Windows Server 2008 as ...
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1answer
29 views

How to patch a dormant windows 7 vm

I run windows 7 as a guest VM on an ubuntu Linux host. However I only start the VM rarely so there is a risk that Windows will have security holes until it is patched. Is it possible to patch the VM ...
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2answers
68 views

How to secure a compromised virtual machine

I would like to run Windows in a virtual machine on my linux box. However, there is some concern from others on the same physical network that if the Windows box is compromised then they will ...
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3answers
93 views

How to create unified, virtualized, triple boot system (Windows, Mac, Linux)

I have a new desktop and I don't want to compromise by not using Linux, Mac OS X and Windows--often simultaneously. My ideal experience would be to be able to virtualize two OS's in the other OS and ...
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1answer
68 views

How to give more CPU resources to my Ubuntu based guest in VMware Player on Windows 7?

This question is similar to How to allocate more processor power to my (Ubuntu-based) Virtualbox system in Windows 7?, only that now I want to try this on VMware Player in order to see which works ...
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69 views

Windows 2012 R2 Server give access to only one VM in Hyper-V

I am new to Windows Server so I don't really know what to look for. I've been searching on Google for some hours now to no avail. What I want I want to create a VM in Hyper-V with a limited ...
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73 views

How to access one VM from another VM?

I have two VMs running on my machine, using VmWare Player (Linux). The network configuration used is NAT for each VM. Here is the link to vmware player's network configuration i have used. VM1: ...
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2answers
31 views

VM gaming vs a bunch of cheap PCs [closed]

I need to set up 10 spaces for online gaming like League of Legends and Smite. I am considering the pro/con of 1 server with 10 VM systems... or 10 individual low end (600 to 700 dollar gaming ...
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1answer
42 views

Unable to start VM from php

From a php page I am trying to start Virtual Machine using virsh tool on KVM hypervisor but I am getting this error. error: Failed to connect socket to '@/var/www/.libvirt/libvirt-sock': Connection ...
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2answers
770 views

Virtual Box storage format error while installing Windows 10 tech. preview

I'm trying to install the Windows 10 technical preview via Virtual Box on my Windows 8.1 32 bit laptop. After following the normal process of creating a new virtual machine by "New", when I go to ...
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2answers
3k views

Can I “transfer” my Windows 7 license to a virtual machine running on the same computer?

I've read the blog post on license transfer, but I'm not clear in the case where I already have a licensed, activated copy of Windows 7 running on my PC but want to move that license to a VM running ...
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1answer
227 views

Virtualbox host key not working, can't get out of scale mode

I have up to date version of Virtual Box running on Windows 8.1. The host key isn't responding. Changing the host key in Preferences > Input dozens of times did nothing to resolve the issue. The issue ...
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78 views

Using CERT Tapioca on VM

I have been attempting to get CERT Tapioca (http://www.cert.org/blogs/certcc/post.cfm?EntryID=203) running on my Mac so that I can test the SSL/HTTPS security of our Android app. Up to this point, I ...
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1answer
54 views

Linux VM for Web Development on Windows Machine [closed]

I currently do all my web development work in Windows using XAMPP. I am now looking to move this over to Linux because I'm finding it's more difficult to install / get hold of the correct tools for ...
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1answer
31 views

Accessing forwarded VM ports from other computers on local network

I'm working on a Windows 8.1 machine, running Debian in VirtualBox. I have an Apache server on the Debian VM, with a web site on port 80. localhost:80 on the VM works for accessing the site. I have ...
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39 views

Serial TTA0: connection to Virtual machine | Weird characters and no input

I have setup a serial TTA0: connection to an OpenVMS Emulator running in virtual windows. The console serial port is configured as follows: TTA0.type="socket" TTA0.port=":20000" ...
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156 views

Unable to SSH into freshly installed debian VM, “Permission denied, please try again.” error

I just set up a Debian 7 VM. I can ping my VM from host OS, which is Ubuntu 14.1, but can not ssh into VM. Here is the output of ssh -v EDIT: I am using virtulbox. I am not using any command line ...
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1answer
34 views

No IP adress in virtualbox, Ubuntu and metasploitable vm

I am trying to set up a lab environment with virtual box - Ubuntu, Metasploitable2 and Kali. When I run ifconfig in Ubuntu, I get the following output: eth0 Link encap:Ethernet ...
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1answer
69 views

import Virtualbox disc with snapshot

I have a VirtualBox discimage and a snapshot of the current state. How do I import them to my current Installation? I tried to create a new machine, creating a snapshot and replacing this to files ...
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1answer
32 views

If you are running a VM, but are hardwired, doesn't it still show your ip?

I have a friend who said that as long as you are running a virtual machine it's hard to get your ip. Not impossible, just harder. Say you are trying to bruteforce a password on a website through VM ...
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17 views

One-sided ping between two HostOSs in vbox

I am running HostOS Win8 which is 192.168.1.3. I also have two other devices connected with .1 and .2. On my HostOS there are 2 Virtual Machines. GuestOS WinXP which is 192.168.1.11 and GuestOS Linux ...
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9 views

How to share VMFusion's vm?

I have the VM in an external drive. Some times I develop in iMac, sometimes with MBP. Every time I load it in a different machine, it asks if I'd moved or copied it. I choose copied, is that the ...
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2answers
36 views

Upgrade a Mac, can i keep old OS?

I need to upgrade an old PowerMac 10.4 buying latest version of imac or mac pro. But first i need to know if there's a way to keep alive old software such as Photoshop CS2, Free Hand MX, Quark ...
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1answer
312 views

Can I run Windows Phone 8 emulator (hyper-v) under an os in virtualbox/vmware?

My computer has Windows 8.1 Single Language, but I need at least Pro to enable Hyper-V. I have a Windows Embedded 8.1 Industrial Pro ISO and a Dreamspark key, but I have all my data on my hard drive ...
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1answer
953 views

vmware player - vm has no network connection, static host ip

Host: Windows 7 x64, static IP. VM: VMWare Player Windows XP/IE8 from http://modern.ie. A bridged connection doesn't work, and, as far as I understand, it is a no-go anyway, because it tries to get a ...
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1answer
34 views

Can a host get a virus from a USB device if the guest has control of the device?

For example, if running Windows with a Linux guest, is it safe to stick in a USB to scan for viruses with Linux, or can it infect the host OS as well?
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61 views

Is it possible to run a virtual machine inside an emulator?

From what I gather a virtual machine makes use of a technology provided by the CPU; a technology called V.T., or "Virtualization Technology" in certain designs of Intel processors. I don't know how ...
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1answer
67 views

VirtualBox RAM memory issue

Host PC: Windows 8.1 Enterprise x64 Processor: 3.4 GHz Intel Core i3-4130 RAM: 4 GB DDR3 I'm creating a virtual PC which will run Kubuntu 14.04 LTS. I lost the ISO but have a bootable USB stick ...
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1answer
33 views

Lost VirtualBox Snapshots When Moved to a New Machine

I had VirtualBox running on my old Windows Vista machine. I was upgraded to Windows 7 on a new machine, and so I have VirtualBox re-installed fresh. I had copied all my VM's from my old machine to a ...
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2answers
295 views

VMNET0 is missing from virtual network editor of vmware workstation 10

I have installed VMware-workstation-full-10.0.3-1895310 on windows 8.1. Although VMware bridge protocol is enable in my LAN adapter but still I am unable to add and switch VMNET0 to bridged mode. It ...