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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Oracle virtual box share folders when executing oracle command

I'm using Oracle Developer Days virtual box, which is a Linux distribution by Oracle for development environments (link). Not sure what distribution is it, but in case it was relevant: ...
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50 views

Problem runing vmPlayer on fedora 21

First of all: Hello :) And then: After install the program and execute vmPlayer request the kernel headers to recompile it (I guess), after that vmP install the virtual network device, at this point ...
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Fedora 21 - Virtual Machine minimal XP install for Art package [on hold]

Looking to run a virtual machine on my fedora21 box. i5 quad core, 16gb ram, 240gb ssd with a 1tb data drive (Ntfs) I'm looking to run Manga studio 5 ex with the barest of bare bones. Don't need ...
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Is it safe to run programs that have viruses on a virtual machine [on hold]

Is it safe to run applications with viruses on a virtual machine? Please explain the vulnerability
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15 views

How can I configure multiple tap interfaces for a single KVM virtual machine

I am trying to setup a VM using Linux KVM for a F5 BIG-IP VE deployment (used in a lab) ...
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1answer
27 views

Arch Linux openSSH frequently drops connection

I'm running a VM using Oracle's VirtualBox. The OS is the latest version of Arch, 64-bit. For some odd reason, every so often (frequently enough to be very annoying and making it almost impossible ...
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1answer
71 views

Linux GPU Pass-through Virtualization - Verify wich component causes trouble

GPU Passthrough Virtualization with KVM or VirtualBox For a research project I need to passthrough a PCI GPU from a Ubuntu Host to a Windows 8.1 guest. We need to test a certain setup, where the ...
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1answer
35 views

Resolve Host's IP on VM

I have kind of tricky situation. I have monitoring tool where all my hosts and their VM's (with IP's and so on) are listed. But what I need is to resolve on which host(need it's ip or hostname) this ...
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2answers
35 views

Minimal virtualization environment

I'm using a virtual machine running Windows for development purposes inside a Ubuntu host (I also use the Ubuntu part for my regular activities, but not both at the same time). As I need to compile on ...
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15 views

Xen ERROR Couldn't find xen kernel for Ubuntu tree

xen-4.2 running on server with multiple CentOS running guest, But when i am trying to install Ubuntu i got following error. How do i install Ubuntu on CentOS Xen Server? [root@example ~]# ...
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34 views

Converting .vhd file to .raw - File is too small and does not boot

I have a Hyper-v .vhd file I am trying to convert to .raw for Proxmox. However every time I convert the size is less than half of the actual disk space used and when I import it doesn't boot. I ...
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1answer
15 views

Changing the default resolution with a virtual machine?

I'm using VMware on windows to run Knoppix but the default resolution is too small and changing the resolution each time I load it with su xrandr is annoying. Is there a way to change the default ...
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1answer
17 views

what is the value for setting a hostname in installation of oracle enterprise linux r6u5 should have?

I am installing oracle linux r6u5 for my personal use in vmware workstation. While going through installatio i came to a point where I have to enter hostname, format specified init is ...
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34 views

No cursor/caret in Linux VMC under Windows Hyper-V?

I have just installed CentOS-7, Minimal Installation, into a Hyper-V VM under Windows Server 2008 R2. When I Start the VM from Hyper-V Manager it opens a window it calls Virtual Machine Connection, ...
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63 views

(virt-manager:4796): Client failed to connect to the D-BUS daemon / Unable to connect to libvirt

I would like to boot and run Windows 8 with kvm or xen while I'm running Debian Wheezy. Actually I have installed Windows 8 on the external USB disk and Debian Wheezy on the hard disk sata. I'm tryng ...
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1answer
57 views

Using of qemu-system-x86_64 with key -enable-kvm on VirtualBox

I have windows 7 as host. I launch virtualbox with ununtu 14.04 on my Windows 7. I try to launch debian inside Ubuntu: qemu-system-x86_64 -enable-kvm -hda disk.img -boot c -m 256 -localtime. Another ...
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1answer
21 views

CentOS Black Screen after 4+ hours of indexing

I am running a CentOS virtual image on virtual box. It has liferay and solr installed on it and I am trying to index a Lar file that is 50+ MB of metadata. This is estimated to take more than 12 hours ...
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20 views

VirtualBox state suddenly SEEMs to have been restored to an earlier time

I have CentOS 7 installed on my Windows 8.1 VirtualBox, and file-system sized 30Gb. It worked fine until this morning, then the storage became full (due to Downloads and Projects). I tried a tool ...
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1answer
41 views

Unable to connect to internet from Centos VM

I am using VirtualBox 4.3, I have installed centos 6.3. I have two adpaters attached. 1) NAT 2) Host-Only I want to be able to setup a cluster of 3 machines which can talk to each other and also be ...
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1answer
72 views

SSH to a virtual machine

I recently installed a Linux (Mint 17) virtual Machine on a Windows 7 PC. In order to be able to SSH to this virtual machine, I had to define a few rules and redirect ports as explained in other posts ...
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46 views

Unable to get kickstart file from locally hosted http

I'm trying to get a vm up using a kickstart file. However, whenever the virtual machine initalize, it says it is unable to located the kickstart file from the location provided. Code to build vm: ...
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37 views

Authenticating a virtual machine against a git server

I have a CentOS 7 VM hosted on a Scientific Linux machine (Both branches are Red Hat). I'm using docker as the SW to emulate CentOS over SL. Communication between both is done through a bridge (a ...
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1answer
45 views

Understanding ssh X11 forwarding

I have a rather odd setup I'm trying to get working. I have an Ubuntu install running in a container (through Proxmox). The host computer is CentOS. Neither server is running an X instance. My host ...
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56 views

Home server bottleneck (filesystem server)

I am trying to set up a filesystem server, so that I can use my various laptops to transparently mount a directory containing many VirtualBox VMs, some of which run full graphics environments. I will ...
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23 views

OSX under Linux VM on Macbook PRO

I have a Macbook Pro, with Parallels installed, within which I have OSX Mavericks, Windows 7, and Ubuntu VM's. Its possible to install OSX Mavericks as a VM, because the hardware is a Macbook Pro. ...
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1answer
109 views

How to install UNIX In a virtual machine?

I got a laptop running Ubuntu 14.04 and I want to install some abandonware in virtual machines with VirtualBox and I chose to begin with AT&T UNIX 4 Version 2.1. I allocated for this machine 512 ...
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116 views

Create disk space on Vagrant/VirtualBox guest

I am looking to expand my VMs storage space and have done it the following way: Moved Vagrant to an external hard drive Reformatted the box to .vdi, resized it, formatted back to .vmdk Re-added the ...
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1answer
18 views

libvirtd and filtered ports

I am new to virt-manager. After having configured a virtual network (new interface virbr0) with 2 VMs that should be able to communicate, I discovered that most ports are filtered. For example, the ...
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1answer
76 views

virt-manager: is it possible to assign specific IP addresses to certains VMs via the virtual DHCP?

using virt-manager quite successfully. I am wondering if it's possible to specify in the virtual DHCP server, that some virtual machines will have a specific IP address (maybe via MAC address ...
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1answer
56 views

Installing generic-logos and generic-release on Fedora

The guidelines for Fedora remixes suggest to replaces packages fedora-logos, fedora-release, and fedora-release-notes with the generic-* equivalents when making a remix. Most tutorials online focus on ...
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1answer
35 views

GParted doesn't recognize my newly resized vdi

Before I describe the problem, I'd like to specify that I'm not confused about the size of the partitions (they haven't been extended yet, so of course they haven't grown) but the size of the actual ...
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45 views

Multicast is not received using Java on Linux

Setup is as follows: host windows machine, 2 VMs with a Host-Only Network adapter and a NAT adapter. Java program on one VM that sends a UDP packet to the following address ...
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2answers
101 views

Wine or VirtualBox for Windows proprietary software installation?

I just bought a Windows proprietary software which appears to store license keys in their internet database right after installation. After purchasing, I was provided with 1 license key, and it is ...
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122 views

vmxnet3 multiqueue support in vmware workstation

I'm working on an application based on RSS multiqueue(receive side scaling), and testing it on vmware workstation, but found that vmxnet3 nic have problem with RSS. My linux virtual machine has 4 ...
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1answer
41 views

Memory Required for SSH-only Linux Setup

I am attempting to set up a minimal Debian or CentOS installation for internal network access. The purpose of the setup will be to allow SSH access into the rest of the internal networkā€”that's it. It ...
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76 views

Proxmox server VM growing than what i have assigned for VM disk space

I have only 2 VM's in one of the SSD hard disk server, Hard disk size was just 120 GB. I have assigned 32 GB for each VM's but now there is only 1 GB space left in /var/lib/vz. While listing the size ...
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1answer
107 views

Virtualbox vboxmanage clone does not show up in virtual machine list

I have a virtual machine that I am cloning with the command line interface to virtualbox like so: vboxmanage clonevm origVM --name origClone However, the clone is added to the directory ...
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1answer
38 views

Virtualbox list vrde port for vm on commandline

I have a Virtualbox VM that is configured with VRDE for remote access using RDP. I'm familiar with how to set the vrde port, but for a given VM I have not found a way to query the current vrde port ...
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31 views

Can't Create Win 7 VM with RHEL 6.5 VMM

I have a server running RHEL 6.5 that I primarily run VMs on it. The VMs I run on it are all Linux, with the exception of one that runs Server 2008 R2. Yesterday, I attempted to install Windows 7 as ...
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1answer
46 views

How do I install sfx files in Debian [duplicate]

I want to install a virtual machine, and i need to install a SFX file. I know the command for Ubuntu is chmod +x filename.sfx But I don't know the command for Debian. Does any one know? Please ignore ...
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1answer
39 views

Understanding NAT concepts

I began learning networking on Linux, and I am looking for a way to associate a particular IP to a particular MAC address (i.e. a way to edit the NAT table?). Actually I am trying to assign some IPs ...
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0answers
84 views

centos virtual machine not registering with intranet dns server

When I am creating a Ubuntu virtual machine on virtual box it automatically registered with DNS server in my intranet network, it has both intranet IP and domain name. When creating CentOS virtual ...
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2answers
298 views

What is a Linux container and a Linux hypervisor?

I looked at the stackexchange site but couldn't find anything. I looked at the wikipedia entry on Linux container https://en.wikipedia.org/wiki/LXC and as well as hypervisor ...
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1answer
65 views

Share wireless card with Arch Linux on VirtualBox

I'm developing a software that needs to access the list of wifi networks in Arch Linux. This is easy, just run iwlist scanning. The problem is: I'm running VirtualBox on Mac OS X and when I run this ...
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0answers
67 views

Multiple domains with one public IP?

Hosting multiple domains on seperate servers but only one public IP address with ProxmoxVE... How can I do this with an easy and quick solution? The individual servers behind the router should be ...
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0answers
25 views

Set screen resolution on Boxes

I'm using Boxes to try out Arch Linux in a Virtual Machine. It works fine but the screen resolution is 1024x768 whereas my screen has a resolution of 1366x768. How can I make my virtual machine use ...
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200 views

Keyboard doesn't working in boot menu on VirtualBox

I've just trying use CentOS 6.5 LiveCD on VirtualBox but all my attempts fail. When the system starts I see "Automatic boot in 10 sec ..." - if I do nothing, the message disappears after 10 seconds ...
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2answers
1k views

Why I can't set on the Debian 64 bit on the Virtual Box

I have installed the Virtual Box, and I would like to make a Debian virtual machine but I can't do this because my Virtual Box don't allow me to choose Debian x64. My computer and the .iso file are ...
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63 views

Running centos on a virtual machine as a webserver

I have taken the VM image of our webserver (CentOS/jboss) and would like to run it locally on my mac as a virtual machine so I can use it as a webserver when I am offline - I am using VM Fusion. The ...
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1answer
59 views

How to write shell script on VMDK to derive configuration

I have several VMDK files and I would like to write a shell scripts to derive configuration (i.e. No. of CPUs, RAM, NIC, HDDs Size, No of HDDs, etc.). How can I do this, or where do I start?