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

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How do you get CentOS 6 to auto detect changes to NICs?

So, here's my issue. I'm managing many CentOS 6 based virtual machines, many of which are expected to be shared between different developers and some even are to be cloned and launched on central VM ...
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1answer
18 views

Created a VM image, now need to deploy them over network

I've created a freshly installed version of Windows 8.1 "not yet activated" with all necessary software packages on VMWare Workstation. This image is considered the baseline for any computer within ...
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21 views

Building a micro computer [on hold]

I am looking to build a mini pc. I plan to install Ubuntu on it. I do however plan to have Windows 7 on it also, The first part of my question is should I dual-boot or have a VM on Ubuntu? If I ...
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30 views

What are the known plug-and-play 5Ghz WiFi dongle? [on hold]

I'm planning to inject a USB WiFi dongle inside a Virtual Machine through USB on a Windows 7 64 bit guest (without SP1), the goal is to connect to a 5Ghz WiFi (N or ac). Since I don't have admin ...
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10 views

Can I connect to an external-HDD-based Hyper-V VM from any computer?

If I create a VM on an external HDD using Hyper-V, and now want to connect to it from a different computer using Hyper-V on that second computer - Can that be done, or might that corrupt the VM? If ...
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9 views

Is there a way to zerofill the page file once for VM compaction?

I know it's not good practice to completely disable the page file even with seemingly sufficient amounts of RAM. I have a number of Windows VMs that naturally have a page file enabled at the default ...
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2answers
51 views

How to create a virtual machine from a bootable USB?

I need to take a live USB, that has Ubuntu 12.04 and a ton of customization on it, and create a virtual machine in Virtualbox from it. I ultimately actually want to get this installation up to Google ...
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22 views

Windows 10 64 bit OS on Oracle Virtual Box

Did an update to version 5.0 virtual box today and got this error msg NtCreteFile(\Device\VBoxDrvStub) failed 0xc0000034 STATUS_OBJECT_NAME_NOT_FOUND. How do I roll back to 4.38 version or fix the ...
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1answer
27 views

virtual box guest OS randomly freezes or crashes at login screen

I am struggling to use virtual box with debian stable (jessie) as guest OS under windows 8.1 as host OS. The installation of debian was simple, but logging into the guest OS is causing lots of ...
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16 views

SSD wear for rMBP mid 2015 15" with running VMware Fusion

I have the rMBP mid 2015 15" with a 512GB SSD. I will be running VMware Fusion for my Windows 8.1, Windows 10 and Redhat virtual machines. Most of the time I will be using my Windows 8.1 virtual ...
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1answer
27 views

Virtualbox guest additions completely breaks graphics on Windows 10 preview

Facing the issue with latest Virtual Box 4.3.28, VM of following config: intel i5 vPro 2 cores. 2800MB RAM 3D & 2D acceleration enabled, 256MB graphics memory. 25GB storage(Fixed size, Not ...
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9 views

Eclipse on new VM cannot download stuff, why not?

I copied eclipse into a new VirtualBox CentOS 7 virtual machine from another computer, but how do I get it to allow eclipse to download stuff from the internet? Here is the problem: Eclipse works, ...
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2answers
40 views

How to access ISO image connected to virtual machine?

I am new to Linux environment and i want to install a package to a virtual machine. I have vmware esxi server, and i installed a virtual machine with fedora17 OS. My intention is to install Dropbox on ...
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1answer
22 views

Missing space after virtual box uninstall

I had Oracle's VirtualBox software installed yesterday on my Windows 7 machine with a 20GB Ubuntu installation. I needed to free up some space so I uninstalled the virtualbox software. However I ...
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0answers
16 views

Migrate Azure VM (domain joined) - another storage account

I have an Azure LAB with DC running on a VM on Azure, call it "DC1". There is a VM joined to the domain say "VM1". I stumbled across the post to migrate Azure VMs between storage accounts -> Here ...
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1answer
12 views

Port is reachable on telnet locally, but browser shows connection reset

I am running a web application server locally in an Ubuntu guest VM on a Windows host. I could not connect to the service in any web browser. Chrome reported ERR_CONNECTION_CLOSED. The result is the ...
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11 views

How do I control process/memory visibility between processes? Fine grain control required

Situation: Windows 7 Game requires "bare metal" access for graphics acceleration. Game also has a particularly aggressive/invasive anti-cheat program/system that: Requires administrator access ...
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1answer
24 views

how do I copy large datasets between two VirtualBox virtual machines?

I have two separate CentOS 7 virtual machines running in VirtualBox that is installed in a Windows 8.1 host. How do I transfer large amounts of data from one of the CentOS 7 virtual machines to the ...
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1answer
11 views

virtualbox mouse integration across VMs and host

What is the simple command for being able to let the mouse pointer seamlessly move between VMs and the host? This happened intuitively for a while, but now I cannot seem to find how to set it up. ...
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14 views

how do I clone an external drive to import into VirtualBox?

In a Wondows 8.1 installation, I can type the following to create a SATA controller which will pull the contents of a detached hard drive into a VirtualBox Virtual Machine: cd ...
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2answers
18 views

How do you implement network separation between a physical host and a VM on the same device?

I want to have a machine running a VM on Hyper-V or VirtualBox. All traffic from the VM should go over a LAN connection (ideally with the physical LAN NIC restricted entirely to the VM and not ...
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1answer
35 views

How do I configure VirtualBox to launch a VM from an external drive?

What steps do I need to take in order to use VirtualBox to access a CentOS 7 installation that is on a detached hard drive? Here is the situation: 1.) CentOS 7 and Windows 7 were installed on a ...
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6 views

Create individual user for 1 VM in ESXi

I have a VMWare ESX server connected to a switch. I then have a laptop that manages the ESX Server using VSphere Client. I then want to connect a third machine to the switch, but I only want that ...
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1answer
35 views

With Linux Mint as main OS, dual boot Windows 7 and have a Windows 7 virtual machine using the same Windows installation

I am about to install Linux Mint 17.1 (Cinnamon) as my main OS. I also want to be able to boot into Windows 7 occasionally. I also want to run a Windows 7 virtual machine inside Linux. Ideally I would ...
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7 views

Can't connect to selenium grid on VM?

I have a VM on the same network as my computer. I can remote into the VM and open up the selenium grid console (http://(ip):4444/grid/console) and it appears to be working fine. When I try to open ...
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1answer
85 views

Pages appearing in black on Firefox Developer Edition

I just installed the latest Firefox Developer's Edition (40.0a2) on one of my VMs, and most web pages are showing up on it (images included) as one big black page of nothing. (It works fine on my host ...
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26 views

Virtualbox NAT port forwarding not working

I am trying to forward Growl messages from my virtualbox windows guest to the growl notifier instance on my windows host. Growl runs on port 23053. Here is my network configuration. But I'm not ...
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1answer
29 views

Maximizing Window for Virtual Machine in VirtualBox

I installed VirtualBox 4.3.28 in Windows 8.1 and am running CentOS 7 within it. But the problem is that VirtualBox is placing a size limit on the frame within which CentOS 7 is visible. Here is a ...
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16 views

Change default network settings for VirtualBox when using NAT

I'm running into an issue where VirtualBox is assigning a guest from 10.0.2/24 when using NAT mode. The problem is its a real network on this site. I see how to change the setting for a particular ...
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3answers
101 views

What is the fastest method of transfering files between a Windows 7 PC and virtual server?

I have 600 tiff files of aerial imagery (180MB each) on an external thumb drive. I need to transfer the tiff files from my desktop PC (Windows 7 pro) to a network attached storage (NAS) device ...
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1answer
20 views

Windows 8.1 Virtual Machine pointing to CentOS 7

How do I set up a virtual machine within windows 8.1 pointing to a CentOS 7 installation which I would like to install on the same physical box? I have been encountering all sorts of problems ...
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14 views

IOV / SR-IOV / MR-IOV for non-network hardware

I've been looking for real-world examples of this for a long time -- mainly because I'm trying to decide whether to restrict my build-options to using only components (chipsets, processors, ...
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1answer
18 views

Accidentally restore a VirtualBox VM to a snapshot

I never made a snapshot of my VM before. Accidentally, I restored it from the current state to the original state (the first snapshot it made automatically). Is there anyway to go back to my LAST ...
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1answer
28 views

How make Debian wait for all VirtualBox guests to stop during shutdown/reboot?

I am using the vboxautostart-service to start all my vms on system boot (Debian 7), they've been configured with this command: VBoxManage modifyvm '<vm-name>' --autostart-enabled on ...
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1answer
32 views

How to access multiple virtual webservers via one public ip

I'm preparing to configure a remote server, located in some data center. This server will have single public IP assigned. This server will have a hypervisor of some kind (KVM or Xen) installed. ...
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1answer
22 views

How can I get my two VM's in virtual box to ping each other?

although each of the adapter are set to "internal network", i keep getting, network is unreachable.. Help Please .. Please make it simple Thanks in advance
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6 views

Hyper-V how to update the contents of virtual machine to physical machine

I have created a virtual machine from a physical machine. My question is if am working on virtual machine then how to update the contents on physical machine. I have created the virtual machine for ...
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13 views

Synology NAS iSCSI + VMware

I don't know much about this "world", but my intent would be to have my VM storage on the NAS so that I could run those VMs in any computer on the network. Is that possible? I know how to create an ...
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1answer
51 views

Unable to start ubuntu 15.04 in Virtual box

The installation went smoothly. But after the first reboot, the distro fails to startup. It is all I see in my screen Virtual box version is 4.3.28 r100309 (Latest as of the time of writing) Here ...
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1answer
56 views

How to log in on Fedora 22 Cloud image running on VirtualBox

I've just downloaded a Fedora 22 Cloud image and ran it on VirtualBox under Windows, everything works pretty well, except that it asks me for a username/password. The problem is that every place I've ...
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1answer
37 views

How to use the Fedora 22 Cloud RAW (.raw) image on VirtualBox

I've downloaded the RAW image of Fedora 22 Cloud to use/install on my VirtualBox installation under Windows but just don't know how to use it. I understand that it may be a dd copy of a filesystem but ...
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27 views

Why does the EPEL Repo fail on a Centos 7 VM on VMWare Workstation 11?

I created a Centos 7 VM on VMware Workstation 11 on a windows 7 host. I am trying to reach the EPEL repo using sudo yum update -y and I get the following error: [root@localhost vagrant]# sudo ...
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20 views

not able to login via ssh to Google VM

I am new to google virtualization and to the use of ssh key to login to servers. I have started a free trial to test a few things and everything was fine exept for the fact that after login in using ...
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24 views

Different IP for host and VM [duplicate]

When we practice , let's say Metasploit we need another IP address to test onto . So for practice i need another IP address. So does the host and the VM have the same IP ? Does 2 VM have different IP ...
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1answer
35 views

unable to use umlauts/german keyboard layout in virtual machine

I'm trying to setup virtualization but am unable to use germany keyboard layout. The letters ö,ä,ü are not recognized when I try to setup the keyboard. The push of those buttons doesn't trigger a ...
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0answers
23 views

VMWare - Windows Update restarts host, guests lose data. Solutions?

They didn't like my question on Server Fault, so I'm asking here. I'm running Windows 7 Ultimate as both the host and the guest under VMWare workstation 11. I try to keep both host and guest running ...
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21 views

Virtual box network adapter stopped working

After trying out a virtual box snapshot from a friend. My other virtual machine's network adapter stopped working. My host system is Mac Os X 10.10, the guest system is Windows 7 (32 bit). ...
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44 views

how does vswitch work with the physical nic in vmware?

It is known that VMs, through their vNIC connect to vSwitch which is in turn connected to the physical machine or ESXI host's network adapter (vmnic). The vmnic is then connected to an actual L2/L3 ...
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11 views

VM Player install not working

I try to install VM player and it tells me to reboot the machine, I think its because I installed and deleted it before. I want to run Teradata developer (so Oracle VM does not appear to be an ...
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35 views

Cannot download from browser inside of my VM

Just as the title states, I am unable to download anything from the browser from within my VM. Forinstance trying to download a windows program called ActiveX from internet explorer inside of my VM, ...