A virtual machine (VM) is a guest Operating System running in a completely isolated environment within a normal host operating system. Modern virtual machines are implemented with either software emulation or hardware virtualization or (in most cases) both together.

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Rolling Release Kali Linux repositories [closed]

My question is whether anyone using Kali Linux installed in a Virtual Box or VMware, using Windows 10 as host operating system, has fully upgraded using the Rolling Release repositories and still had ...
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85 views

How to access KVM windows guest bios

How to access KVM windows guest bios: As I want to check guest bios virtuliazation options to enable nested virtuliazation, like vm inside vm.
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15 views

Create Network Interface That Redirects All Traffic to Actual Interface

I would like to create a network interface on my Arch Linux host for a VM to use (probably QEMU) so I can use iptables to firewall all network traffic in/out of the VM. The interface should send all ...
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342 views

Gnome Boxes: proper network configuration?

I've got a problem with Gnome Boxes: I've 2 machines, cloned 1 from other, with CentOS. Both machines get same IP addr on Gnome Boxes, so when I boot 2nd, 1st gets disconnected from network, and vice-...
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183 views

Why does NetworkManager explicitly support tun/tap devices?

Apparently NetworkManager recently gained support for macvlan interfaces. I notice it also supports macvtap, and the patch shows it already had some support for tun/tap devices. I thought tap ...
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1answer
85 views

List of VBox Machines Help?

So, I'm writing up a bash script to list out the VM's on my host, so I can make sure they are fired up when the host machine restarts... no problem here... my issue is getting the list of the ...
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22 views

Personal VM Station setup

In a previous question, i was looking for a way to execute VMware without installing a window manager or desktop environment. It proved difficult and I was curious if I am over complicating a solution ...
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30 views

What are all the places http_proxy can be set?

I am trying to install a Centos 7 VM imported from another LAN environment. I have reconfigured the network in /etc/sysconfig/network-scripts/ifcfg-eth0. So now I can ssh to the machine and ping ...
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90 views

Easiest *non-networking* method of communication between Linux host and Windows guest [closed]

I'm writing application software for Ubuntu which needs to communicate with another application running in a Windows Virtual Machine via Qemu on the same machine. I have full control over the source ...
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1answer
50 views

Power 7/8 - LPAR has null desired_proc and desired_mem

I am querying the HMC via commands to get the memory and cpu of the logical partitions. I am using the command lssyscfg. For many lpars which are in Running or Not Activated status, the command ...
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32 views

Virtualization and SCSI passthrough

Is there a way to do SCSI passthrough in a virtualized environnement under Linux (Linux being the host OS, and MacOSX being the guest OS) ? My goal is to drive a high end scanner for which no driver ...
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2answers
39 views

adding a virtual NIC to linux

I'm using CentOS 6.5 on oracle VirtualBox. In order to gain access to the internet, I've added a second network card connected to the physical network card of my pc. I rebooted the virtual server ...
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1answer
166 views

Light distro for VM-Ware guest running under Windows [closed]

I am forced to work under Windows but I need to access to a Linux environment for multi-platform programming tests. I need a fully functional desktop environment, ready to use, git, emacs and classic ...
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164 views

CentOS update from 7.1 to 7.2 with 2.6 OpenVZ kernel?

We are using CentOS 7.1: $ cat /etc/redhat-release CentOS Linux release 7.1.1503 (Core) We deferred the 7.2 upgrade. It looks like it did not cause any problems so we are planning an upgrade. The ...
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52 views

Mouse not appearing for linux in virtual box on mac

I have just set up Kali linux on Virtualbox on my mac but when I try to enable the mouse on the virtual machine the cursor doesn't show and I'm not sure why i do see a message that states "You ...
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1answer
35 views

Access folder created in windows

Is it possible to access the folder created in windows, through unix operating system (Ubuntu 14.04 LTS) that is installed on a virtual machine on windows? If yes, what is the process to access the ...
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1answer
3k views

Qemu USB passthrough (windows guest)

I have a USB ADC/DAC and a HASP protected proprietary data acquisition system for it, both of which do not work in linux. I am trying to make it work in Windows virtual machine using qemu. Here are ...
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2answers
119 views

NTP works but clock is not the same

I'm trying to sync multiple machines (9 machines that are cloned from one machine so they have exactly same config) on a LAN using NTP. All machines are running FreeBSD 10.2 on VirtualBox with Ubuntu ...
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80 views

Why don't I have networking connectivity on my virtual machine?

I have a virtual machine called vnet208. I used to be able to ssh into it, but I made some changes a while ago and then we had some power outages and now I don't have network connectivity. I can get ...
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Connecting a Redhat virtual machine to the host NIC that uses network bonds

I'm running Redhat 6.6 on severs with multiple interfaces. And I am successfully using network bonds on the interfaces to connect with the different VLANs on the existing network. The servers are ...
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1answer
15 views

Virtualizing OSX partition on MacBook running Linux

I have a Macbook Pro with a partitioned drive that hosts Arch linux and OSX. Linux is my main development environment but occasionally a need arises to test some code on OSX. This doesn't happen often....
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132 views

/dev/kvm is missing from system supporting kvm-virtualization

I'm trying to enable kvm-virtualization for Android virtual devices. In order to do so, I followed this guide and did the following: Checked, if kvm-virtualization is available: user $ grep --color ...
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183 views

Running QEMU inside XEN virtual machine

Is it possible to run QEMU inside XEN virtual machine? I tried to enable the XEN nested virtualization for with following options to virtual machine configuration file in /etc/xen/vm1.cfg: hap=1 ...
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1answer
75 views

Forward code.domain.com to specific server?

I have the classic Multiple Servers 1 IP trouble Except I am using ESXi (s1) to host to Server VMs (VM1, VM2). What I'm trying to accomplish is this: When Someone Goes to mydomain.com they get S1-VM1 ...
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84 views

Booting EFI on KVM

I'm on Ubuntu 14.04 running kernel 3.19. I'm trying to use virt-manager to start a virtual machine. I have installed ovmf for EFI firmware and booted the machine with a Gentoo ISO in the CD slot. I ...
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1answer
41 views

How to check connectivity between opensuse vm client and server and how to remotely log in

I am new to openSUSE, I created an openSUSE VM acting as the server(Server_VM) where I enabled secure shell server and created a user account client_01 that is going to be used to access Server_VM ...
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1answer
193 views

How to run a gui client os in a virtual machine on non gui linux host?

Is it possible to run a windows gui client in a virtual machine hosted in a non gui linux? How to set this up? and how to connect to such a machine?
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42 views

Docker(-like virtualization) for non-ephemeral VMs/isolation? [closed]

Until now I used KVM/Xen for virtualization. I heared about docker beeing a light-weight alternative to it. But the official best practices of docker state that docker-container should be ephemeral. ...
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83 views

VirtualBox linked clones - does updating parent automatically update children?

I have tried linked clones, immutable, multiattach everything but I am not sure if I am doing something wrong. I have the following scenario - (parent) - base install, updates as of Monday (child 1)...
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2answers
273 views

Can't mount shared folder on Linux VM

Host machine: OS X El Capitan Virtual machine: Linux Red Hat(64-bit) through Virtual Box Goal: share folder on Mac, so when I change files on host machine, they will be changed on the virtual ...
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39 views

Manual IP configuration on RHEL 7 KVM guest installation

I have KVM set up on a RHEL 7 server with the installation media for guests being served via FTP. Whenever I kick off a new VM installation via Virtual Machine Manager (I'm doing graphical ...
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61 views

create an image that can be mounted in vmware from existing xubuntu 14.04 install using free software

I have spent 2 days researching/testing this and come up empty. I have 2 physical computers: 1) main pc is windows 7 with VMware. 2) other PC with xubuntu 14.04 (want to back this one up). I wish ...
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22 views

testing open vswitch

I've been fooling around with open vswitch and trying to understand it. I have a simple setup that is not working as I expect it to. I feel like I'm probably missing something simple, but I don't know ...
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48 views

How can you write to a file system before booting using VirtualBox?

I'm reading the TurnKey Linux 14 documentation and it states that in order to preseed values for an appliance, you have to write them to the file system before the machine boots for the first time. ...
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1answer
147 views

Encrypt partition and allow qemu to use it as the guest drive

I am trying to encrypt a 25gb partition on my SSD with cryptsetup in such a way that will allow QEMU-KVM to use it as the guests drive. I have tried luksformatting the drive: cryptsetup luksFormat /...
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55 views

How do I copy a Genymobile Android virtual machine from one computer to another?

I have a Genymotion Android virtual machine on one computer, and I've tried copying the entire .Genymobile directory to another computer, and Genymotion on the second computer does not seem to be able ...
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1answer
94 views

Oracle's VirtualBox and keyloggers

So, I have installed Windows 7 in Oracle's VirtualBox (5.0.8) and I would like to know if the Windows 7 software (including viruses and malware) is able in the default VirtualBox settings access the ...
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22 views

Golden image updates in qemu

Consider that there are 100 windows virtual machines coming from a single base image and each vm is added to domain along with minor other machine specific settings which can be done by a script. ...
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83 views

Virtualization (KVM) and excessive cached RAM

I've set up a virtual machine through KVM-libvirt (virt-manager) with Windows 10 on it and I'm getting an odd behavior on the host side. I'm running a 64bit Arch host with 24GB of RAM, 12 of which are ...
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1answer
335 views

Unable to use VMWare Workstation 12

I found myself unable to use the VMWare Workstation 12 trial on Debian Stretch as well as on Ubuntu 15.10. It installs just fine, but when I attempt to start it, it simply does nothing, no error or ...
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70 views

Port forwarding error

I am trying to use VNC on my KVM guest, following this guide: http://blog.scottlowe.org/2013/08/21/accessing-vnc-consoles-of-kvm-guests-via-ssh/ This is the ssh command I am using from my host: ...
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1answer
223 views

Virtfs (Plan 9) vs NFS as tool for share folder for virtual machine

I have QEMU virtual machine. Linux host and linux guest. I want stable and fast solution with minimal performance cost. I'm considering two technologies for shared folders (between guest and host): ...
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1answer
20 views

Where to find information about tests from Phoronix test suite?

Phoronix Test Suite is a linux benchmarking tool made of tests and suites of tests. To print all available test phoronix-test-suite list-available-tests To print all available suites phoronix-...
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75 views

USB Redirection with libvirt/virt-manager stopped working after upgrade f21->f22

I performed an upgrade from fedora 21 to fedora 22 today. I used FedUp and followed the instructions at https://fedoraproject.org/wiki/FedUp Afterwards I installed fedy and activated some tweaks (...
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18 views

expand a Hard Disk of a Virtual Machine centos

my Centos VM was 10 G and I want to expand it to 20G I found a lot of links give a steps to achieve that goal But all of them depending of make physical volume and Logical volume based on ...
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2answers
497 views

Should I install Kali to a partition or run it virtually?

I am interested in taking a course on penetration testing with Kali Linux. Should I install Kali to a partition on my computer or on VirtualBox? Which one is better in general for pentesting?
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159 views

HP EliteBook 8530p wifi problem (hard blocked) in Qubes OS

I just installed Qubes OS on an old HP EliteBook 8530p and cannot connect to the internet with wireless. This laptop has a physical wireless switch that must be toggled 'on' for the wireless to work....
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3answers
483 views

how do I build a bridge between two virtual machines?

I have used virt-install to create two CentOS 7 virtual machine guests on a CentOS 7 host computer. One virtual machine is called webvm, and hosts web sites on a private network. The other virtual ...
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1answer
29 views

Is the running Xen Suse OS just Dom0?

When I select "Xen" option during Suse boot which has installed "Xen" tools: Is the running OS just Dom0?
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168 views

How do I ssh into a new virtual machine?

note by derobert: problem was resolved in chat, starting around http://chat.stackexchange.com/transcript/message/24666451#24666451 if someone wants to write up an answer. Turns out the bridge wasn't ...