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

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Reduce the size of VMware disk

I am running Ubuntu 14 LTS as a virtual machine with VMware player 6.07. The machine is currently using 24.7 GB but the maximum size available to the disk is 230 GB. The disk space is not ...
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23 views

How to precisely sync the VM clock to the host clock

Is there any way to precisely sync the guest clock to the host clock? In my application the host is running PTP (slave mode) and I need the VM clock to be synchronized precisely to the host clock. I ...
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Unable to get Debian guest full screen on VMware Player 12

I have installed a Debian 8 guest on VMware Player 12 but I cannot get the Debian screen to fill my whole monitor even in Full Screen mode. When I set it up, I set screen size to be the same as the ...
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43 views

How to reconfigure NAT servers so they are exposed?

Here is what I have: Live HTTP server (104.x.x.x) DD-WRT'd wireless router (192.168.2.1 / 8.8.8.8 DNS server) Win 8 Notebook PC (192.168.2.100) VMWare BIND DNS server (192.168.3.108 / NAT on ...
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27 views

How virtual machines will be effected from DDoS attack on same physical server?

I mean let's suppose that there is a large DDoS attack to a virtual machine which is running on a physical server with other 10 virtual machines, how the other virtual machines will be effected from ...
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59 views

Is it possible to have more than one screen in Parallels?

I use Parallels 10 on Yosemite. My hardware has one screen or two screens, depending on if I use the laptop and/or an external screen in combination. However, Parallels only recognises one screen: ...
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9 views

How to remove a partition within a VDI file?

I recently created a new virtual machine (Linux) that shares the same VDI as an existing virtual machine (WinXP). The installation of the OS on the new virtual machine aborted because there wasn't ...
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14 views

Can't log in VM Ubuntu 14.04 LTS

I haven't used my VMware Player Ubuntu for a long time. I tried to log in today but when I write my password it seems that it starts normally and after a second it goes back to log in screen. I tried ...
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31 views

Why won't my mapped drive persist for elevated user after reboot?

This is related to this issue: Command Prompt in Administrator mode doesn't see mapped drives I'm needing to run a program (InstallShield) as an elevated user, but this program also needs to ...
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28 views

Bootable CentOS disk image won't boot in VMWare

I have custom bootable disk image built from a full CentOS 7.1 iso. I can burn this raw image to a USB stick and then use it to boot a server and install CentOS on that server. Alternative, I can ...
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7 views

Vagrant guest with public_network only pingable in public ip from host

I have a vagrant vm (Vagrant 1.8.1, Virtual Box 4.3.34) which i would like to access from another computer in my local network. The line in the vagrant file is: config.vm.network :public_network, ...
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6 views

Control the appliance of a VBOX externally

I am using virtual Box version 4.3.28. I am importing an appliance(.ova) file, and after importing I have to start the appliance. When it starts it ask me few inputs, like IP address, gateway , subnet ...
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25 views

Can't ping VirtualBox Windows 7 VM from separate OS X machine

I have a VirtualBox VM running Windows 7 on one Macbook, and have tried unsuccessfully to ping the VM's IP from another Macbook. Here is what I've tried so far: I have turned off the 2 Windows ...
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1answer
16 views

Virtualbox- Can't set up 2nd adapter to network, even though VM is powered off

I am trying to add a 2nd adapter to my VM so that I can ping to my VM from another computer, but so far I've been unsuccessful. The specific problem I am having is that, when I click "Enable Network ...
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10 views

KVM linux bridge

I'm quite new in networking. I have an server with an ip addr a on eth0. Now I have via KVM an VM running on the server. I've got an other ip addr b which I want to use for the vm so that it will be ...
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28 views

Why is my Virtual Machine Backup larger than virtual machine drives

As part of a disaster recovery test, we made a backup of a virtual machine that runs our SQL server. The backup file was >360GB and took a long time to copy over USB 2.0 (don't ask me why our disaster ...
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2answers
88 views

Any Way to Pass Media Keys Through VirtualBox

I have Linux inside a Virtual Box on a Mac. Whenever I press the "Play/Pause" media key, even if I'm inside the Linux VM, the Mac iTunes app opens. This makes it impossible to use media keys inside ...
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40 views

How do I ping virtual machines that are connected to my host pc?

I have installed VirtualBox on my pc. I have "Virtual Host-Only Network" virtual network card and two connected machines to it via Host-Only network mode. I want to check their addresses from host, ...
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43 views

Is running a linux VM on a windows machine for btrfs software raid a good idea?

A bit of backstory: I used to have a raid 5 array on my main (win 7) computer using a highpoint raid controller. I used to think if any part died I could replace it, so I was safe as long as I did not ...
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35 views

Displaying windows from a Windows virtual machine on a Linux host window manager

I am able to display windows from an UNIX machine on a Windows client using SSH X11 forwarding. But is it possible to do the opposite? Let's say I have a Windows virtual machine and run some software ...
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1answer
24 views

Can I point an A class host record to a domain name instead of IP?

I recently registered my first domain name from GoDaddy, and want to point the domain to a website hosted in Azure VM. Azure VMs change their public IP if restarted, so I don’t want to point my ...
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22 views

Communication with Windows Guest OS run in Qemu

Using a headless Ubuntu 14.04 server, I'm running a Windows 7 guest in Qemu to which I am passing through the GPU (for performance). I am writing an application for which part will be running in ...
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1answer
38 views

Access virtual Ubuntu Localhost from Windows

I am using VMware Workstation on windows10. I have installed ubuntu14.04 as a guest in VMware. In ubuntu I have installed Apache. I can access localhost in guest Ubuntu. but I want to access it on ...
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27 views

Boot to BIOS in VMWare Player

Is there an easy way to boot directly to the BIOS in VMWare Player so that you can select the OS and such? Currently I use the keyboard commands to enter the bios, but it is hard to catch it in time. ...
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103 views

Virtual machine GPU passthrough with Windows 7 as host

Is it possible to do that with VMware or VirtualBox? I want to have Windows 7 as a host OS and Windows 7 or Windows 10 as a guest OS. I've seen a few guides, but they all assume I use Linux as a ...
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72 views

USB 3.0 Flash Drive vs. 5400 rpm HDD for VirtualBox VM

Based on a comment, I'm trying to make this a technical question rather than an opinion question--performance of two proposed hardware configurations. I want to switch back and forth between Linux ...
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60 views

How do I make a virtual machine with non-standard speed of time (timescale)?

I think it should be technically possible, but I don't know of any ways to do this in already existing software. What I mean — the "hardware" clock in the VM should be able to run at different ...
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21 views

Network Settings on VirtualBox clone (From KVM VPS)

I've recently copied my Debian KVM VPS to my local computer via the dd command. I've converted it into a .vdi and am now running it in VirtualBox. I'm having difficulty configuring the machine for the ...
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24 views

VMWare Workstation Internal error

So I have been trying to get a BMW Diagnostic system running in VMWare going. Everything goes fine till I finish installing and restart to use the new OS. Keep getting an error, a Vcpu-0 double fault ...
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25 views

Can't access IIS website inside a VM via HTTPS

I'm running Win10 through Parallels and trying to access a website in IIS from a browser outside the VM. I've added an entry to my hosts file which maps the VM's IP address to "windows", and I can ...
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1answer
42 views

RDP not going to multiple Screens

I am trying to use multiple monitors with an rdp session on Windows 10(host), the source is on Win 7(guest) and a Hyper-V vm. When I exec from cmd the following code mstsc.exe /span it works, but not ...
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Ubuntu Desktop 14.04.3 virtual machine flickering

I am using Windows 10 Pro 64bit and installed Ubuntu Desktop 14.04.3 as a virtual machine using VirtualBox. I set my virtual machine to another desktop and made it run in fullscreen. When I open ...
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39 views

How to use Wi-Fi adapter in virtual machine as Wi-Fi adapter?

How to use Wi-Fi adapter in virtual machine as Wi-Fi adapter? I don't want to connect some network before. I want to connect to wi-fi network in my virtual machine. No matter what it will be - client ...
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56 views

Safe way to share a folder with a VMware machine on Windows?

So, I want to share a Windows folder on the host with a VMware virtual machine. To do this, I need to share this folder on the Windows side. But who do I share it with? The list includes: ...
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Can a Parallel Only 100MB Zip Drive be mounted on a Mac running 10.11 via Parallel to USB Adapter?

I have several old 100MB Zip Disks I used to use with a PC that I would like to import and archive the contents of. I purchased a generic DB25 Parallel Connector to USB adapter, and it is detected ...
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69 views

VirtualBox host-only network, ping works only from guest to host

I have a Windows 7 VM running on a Ubuntu 15.04 host using the latest Virtual Box 5 release. I've configured a host-only network. The configuration of the host-only adapter is: Adapter IP ...
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12 views

VM inside host VM cannot see avx cpu flag

I have an Ubuntu 14.04 server installed on a VM inside VirtualBox. This VM acts as my host for other VMs. I ran a Linux based image using qemu inside this host VM. The host VM has cpu flag avx but the ...
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Windows Port Forwarding

I need to forward a port on a machine with Windows 7 to a VM which is run on it. I have Windows 7 Pro available from the Internet, the connection to it is established via VPN, it has a running Vmware ...
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28 views

Whats the Differnence between VDI and Tunneling X with something like X2Go

So i came here from another Stack exchange site because I understand this to be the most general of SX sites. So my question is what's stated in the title: What's the difference between VDI and ...
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29 views

Disk speed and partitioning

I am using VMWare for creating multiple virtual machines running games, each virtual machine has its own game installation (and i don't want to use common install) BEFORE: Everytime the game on each ...
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23 views

VirtualBox machine starts, but not running

Running an Ubuntu Server 15.10 host, I have a guest VM registered. Entering: vboxmanage startvm [NAME] --type gui I get: VM [NAME] has been successfully started. Immediately after, I enter: vbox ...
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32 views

kali linux wifi keeps asking password while pass is correct

I am trying to connect my vm(hosted on virtual box) to my wifi. I am sure the password is correct but it keeps asking me to put in a password. If I run airmon-ng start mywlaninterface it tells me that ...
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2answers
67 views

Is it safe to defrag a virtual machine on an SSD?

As part of my coursework I need to show some evidence (screen shot) of myself defragmenting a computer. Since I missed out doing it at college, I need to do it at home. This requires me to use a ...
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1answer
17 views

Upload/Copy Virtual Box configuration to another machine?

I have setup a Virtual Box on my computer_A. And I would like to use the same configuration settings on another computer_B. a) How do I upload/share/copy a virtual box config file on/with another ...
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37 views

“vendor VIB for HP found, but host is VMware”-error while installing VM

I'll install ESXi in a virtual machine in VMware. But I've got this error: The problem is not what is this meaning but how can I solve it? Must I download a new iso file from VMware that is not ...
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28 views

Problems setting up host-only network on virtualbox

I am using Windows 7 on a virtual machine (VirtualBox). My host is Debian. I am trying to set up a host-only network. I have set up my guest OS (Win 7) as follows: Adapter 1: IPV4 Address: ...
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Edit VM setting so he configurate like a 84-bit processor [closed]

How can I the virtual machine settings change from an ESXi5 64-bit machine so that I can configurate it like a 84-bit operation? I'll nothing change to my guest operation system! This virtual ...
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22 views

serial port on vmware has overlapping error

I have a VMware and a card reader with USB as serial port . I want to forward a serial port on my windows( 8.1) to VMware (Ubuntu). But It shows me this error: How can I use my com port on VMware.
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Backup to VM strategy: sysprep doubts

I'm considering this strategy: backing up an old, but important computer to a VM, doing a P2V conversion. I would use Hyper-V and the conversion would be done with SysInternals Disk2VHD utility. The ...
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Ping between Ubuntu guest VMs on VitualBox

Running VirtualBox 5.0.10 in a Windows 10 (64bit) host, I've created 2 guest VMs - Both Ubuntu 15.10 (64bit). Looking for a setting that will allow the 2 guests to ping each other and also connect to ...