Virtualization is a group of software technologies that allow abstraction between layers of a system. This allows separation between the logical layers of the system, providing isolation, flexibility, and/or the ability to run more than one at a time. This differs from most traditional systems where ...

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6
votes
5answers
5k views

Get list of DHCP clients with KVM+libvirt?

I have several VMs running on Ubuntu 9.10 via KVM+libvirt. I want to be able to find out the IP address that has been assigned to each host without physically opening a physical "console" to each ...
0
votes
1answer
2k views

File .vmx not found error when trying to create a VM snapshot after removing an independent volume

I had had a Windows VM having a second virtual drive configured as an independant volume placed on a second datastore on a VMWare ESXi 5 server. Then I have removed the second drive by removing it in ...
-2
votes
0answers
13 views

Please help me to choose the best server for running virtual machine [duplicate]

I would need to setup 10 Virtual Ubuntu servers for my project.I will be using the same server for couple of other purposes in future too like running SVN,JENKINS and couple of other light resource ...
0
votes
1answer
692 views

XenCenter cannot connect to XenServer

I am trying to establish a connection using XenCenter 6.0 to a server where XenServer 6.0 is installed, but it gives me the following error message: Unable to connect to server '192.xxx.xxx.xxx'. ...
0
votes
1answer
33 views

zeroshell with multiwan on virtualbox

I'm planning to setup Zeroshell as a router gateway for a school network on Virtualbox. The host machine will run Ubuntu server edition. Then I will install Zeroshell as a guest Os with 4 configured ...
0
votes
1answer
21 views

VirtualMachine is not available from bridged interface outside the local network

I'm unable to connect to any service running in my VirtualMachine from Outside my local network. My VM has the following configuration: eth0 - Host Only Network eth1 - Bridged Network (Therefore ...
0
votes
1answer
2k views

Unable to ping between host machines and guest vms running on Vmware

In order to learn a bit about system administration, I've installed a Centos vm using Vmware on my local machine running Windows 7. Everything seems to be working fine since I can access the internet ...
0
votes
3answers
748 views

Is there option to provide IP address while cloning a VM itself in XEN

I use XEN virtualization platform. I have configured its networking in xenbr0 mode. I have set up one base VM and I am cloning it to create new VMs by using virt-clone command. My question is there ...
-1
votes
1answer
883 views

CentOS 7 Minimal Install doesn't comes with networks scripts? Which version to use then? [on hold]

I'm installing CentOS 7 as virtual machine but I'm having some problems related to network. As image shows I select Minimal Install for later add trough YUM any packages I want as for example: PHP, ...
1
vote
0answers
54 views

Convert manual network commands into networking scripts

On a dedicated server with an hypervisor as host and Fedora 20 as guest, I successfully used the following commands in the guest VM to enable network with a IP failover: ip route add ...
1
vote
1answer
650 views

Cannot connect to Openstack Instance via horizon, but SSH works?

I've got an OpenStack deployment running inside a VM for testing purposes. My setup is as follows: Host Ubuntu x64 with Virtualbox -> Guest Ubuntu x64 with OpenStack -> Ubuntu X64 Server Test ...
0
votes
1answer
23 views

Citrix Xen Server 5.6: Virtual Machines (VM) Deleted or Gone Missing?

In my environment I have a Citrix Xen Server (ver 5.6) with multiple VM's setup in my lab on a local partition mount. I arrived to my lab setup last week to find that my VM's have gone missing. The ...
-3
votes
0answers
38 views

How to have one server , that multiple users can use at the same time [on hold]

i work in a company , and the owner saw a system in china , that consist of , one server with an accounting software installed on it , and for each server there's like 20 or 30 users , using that ...
0
votes
0answers
3 views

Pinging between two different vm's with different subnet on same host [migrated]

I am running a windows machine and i am running virtualbox on it I have two VM's for cent os. I want the two VM's to ping each other but they should have different subnets. I am not really sure how ...
-1
votes
0answers
15 views

Cant ping device from inside virtual network [on hold]

I want to create a virtual network that real devices can connect to using virtual box. I have 2 routers I am bridging to virtual firmware. I'm have servers also running on vm's and would like to be ...
-4
votes
0answers
28 views

Vagrant, how to install it on Windows amd integrate with Vmware [closed]

I'm using Vmware Workstation 10.0.x for get up & running CentOS 6.5 VM. This VM has the basics for web development such Apache, MySQL, PHP, Ruby and some others tools that any web developer needs. ...
0
votes
0answers
10 views

minimal linux setup with X and Virtualbox [closed]

Recently virtual machine tech is well developed, Hyper-v XEN vsphere OpenStack OpenVZ... However, for me they are too heavy for personal use and make it portable. I am wondering whether there is a ...
0
votes
1answer
2k views

How do I tunnel an HTTPS proxy through a virtual machine (VMWare)

I have a personal setup at home using VMWare Workstation. I also have a set of Virtual Private Machines that run Squid, and therefore provide me HTTPS proxy tunnels. Using Proxifier, I can tunnel all ...
2
votes
2answers
45 views

Does 'vim-cmd vmsvc/snapshot.create' create a functional backup of the guest?

If I create a snapshot with: 'vim-cmd vmsvc/snapshot.create' I can then transfer the file that creates to another system, or even to another vmware ESXi system. Setting aside the fact that ...
1
vote
2answers
2k views

Virtualizing a Windows 2000 host for use in Hyper-V

I'm looking for a way to successfully import a Windows 2000 host (running several legacy applications that do not work on newer editions of Windows). I normally like to use Disk2VHD for making a ...
2
votes
2answers
919 views

VSFTPD does not allow upload with virtual users

I am attempting to setup VSFTPD with virtual users on a server running Ubuntu 12.04. I have configured the server to allow for virtual users to login, but I am having trouble getting it to allow ...
1
vote
1answer
23 views

Win7 VM network is flaky after migrating from Hyper-V 2012 to 2012R2 and upgrading integration software

I'm in the process of upgrading our Windows 2012 Hyper-V hosts to 2012R2. As part of this process, I am migrating existing VMs from the 2012 hosts to hosts that have already been rebuilt. These are ...
0
votes
0answers
4 views

Guest VMs unable to ping each other within a custom host-only network in vmware workstation [migrated]

I have created a custom host only network VMNet2(without dhcp) in VMware workstation and connected my three VMs with this network. But the problem is I cannot ping any VM from any other VM, However I ...
1
vote
1answer
2k views

Difference between 'Custom' and 'LAN Segments' networking options in VMWare 8?

For communicating between VMs, what is the difference between the 'Custom' and 'LAN Segments' networking options in VMWare 8? The documentation is not clear. Does one of them have any advantage ...
1
vote
2answers
775 views

Xen Remus setup

Currently, I'm running the IT for a small organization, and we just purchased a new server to replace our aging Dell poweredge. As the Dell isn't so bad as to be junk, I was hoping to set up Xen on ...
0
votes
1answer
898 views

setting CPU cache size and model for KVM guest

Is there any possibility to create a custom CPU model for KVM Linux guests, or at least to modify parameters such as cache size and model name? I know I can set CPU features, topology and pinning and ...
0
votes
1answer
14 views

weird bridge issue in KVM

on Centos 6.5 i have a bridge network connected to eth4 and my virtual machine (Centos6.5) running on KVM is also connected to that interface(vnet0) bridge name bridge id STP ...
2
votes
0answers
19 views

Can I convert a physical non-bootable sata volume to a VHD image for mounting in a VM as 2nd volume?

I'm converting physical machines in the office to virtual machines using Disk2vhd, and it doesn't list the second physical hard drive that is in one of the physical machines. Does that mean I cannot ...
1
vote
6answers
291 views

Failure of virtual SCSI device, Server 2012 Hyper-V - EventId 129 - Reset to device, \DeviceRaidPort0, was issued

Been running Server 2012 Hyper-V for a few months now quite reliably. That was until the following event started: EventId 129 - Reset to device, \DeviceRaidPort0, was issued When this occurs all ...
0
votes
0answers
7 views

Are Xen 4.1 virtual machines compatible with XCP?

I have a couple of vm installed with Xen 4.1 (basic Xen Hypervisor), now I would like to install XCP packages on my wheezy server. I've read that XCP took control of the server disks and network ...
1
vote
2answers
91 views

Pros and cons of virtualization [closed]

I'm aware of many questions here discussing similar topic, but in this case, I'll try to be much more specific. One target scenario is small to mid-size ISV, the second scenario is an enterprise ...
0
votes
0answers
50 views

XenServer HA (failover VM's) without shared storage

In the university from Uruguay where I work, we have 2 IBM BladeCenter S with 4 server blades each one. Each blade have XenServer 6.2 installed and working. Our idea is have each BladeCenter in ...
0
votes
1answer
722 views

Proxmox: VMs and different public IPs

I have a server which has two NICs and both are directly connected to internet. I have five different public IP addresses available for the VMs. The host machine (Proxmox) doesn't need to use any ...
0
votes
0answers
21 views

Dell vWorkspace and Microsoft System Centre integration

I am a software developer. My company is planning to take advantage of visualization and is now using Dell vWorkspace and Microsoft System Centre. As a developer I do not really get involved with ...
4
votes
1answer
58 views

Should new Linux VMs under ESXi 5.5 mount their filesystems with discard option?

When creating new Linux virtual machines using recent (>= 2014) distributions in VMware ESXi 5.5, should they mount their filesystems with the discard option ? I make the assumption that the VM's ...
9
votes
1answer
3k views

Read/write access for passthrough (9p) filesystems with libvirt/qemu?

I have recently started experimenting with the support for passthrough filesystems in recent versions of KVM/QEMU/libvirt. Making the filesystems available for read access has "just worked", but I'm ...
-2
votes
3answers
36 views

Linux CLI server with a virtual windows machine running? [closed]

I have a ubuntu CLI server and I am wondering if it's possible to install a windows machine on a CLI server? My hope is that I can take a pre-made VirutalBOX or VMware image and put it on my Ubuntu ...
12
votes
11answers
29k views

How do I know if I'm working on a Virtual Machine or not?

Is there a way to know if the Windows machine I'm working on is virtual or physical? (I'm connecting with RDP to the machine. If it's a virtual machine it is working and handled by VMWare).
0
votes
0answers
32 views

KVM : VMs need several restarts to boot (on 2 different hosts)

I'm using a KVM hypervisor on a Ubuntu Server 12.04 server. My virtual machine's virtual disks are LVM volumes, formatted as ext3. The guest OSes are all Ubuntu 12.04 and 14.04 server. Everything ...
0
votes
1answer
147 views

CARP Virtual IP does not ping in virtualized environment

We have three physical machines with SmartOS on them in a LAN. Two of them, 10.40.0.30 and 10.40.0.240 are hypervisors with two pfSense-based virtualized gateways on them. These gateways have ...
0
votes
1answer
738 views

OpenVZ Can't initialize containers after install

I have installed OpenVZ on centos 6 on a dedicated server. I followed quick installation guide on openvz wiki. After installing thru yum, I don't know why, but grub.conf wasn't automatically updated ...
0
votes
1answer
72 views

Is it advisable to use virtual Linux server installed on i5 / 8GB / 500GB desktop class computer? [closed]

We have CentOS 4.3 P4 / 512MB /Linux server installed somewhere in 2006-7. This machine has three network interaces for leased line, broadband (backup) and LAN. We use Sendmail, Fetchmail, NAT, Squid, ...
10
votes
10answers
4k views

Run virtual machines without a host

I know that I can have virtualization software (Virtual Box, Virtual PC) running on Ubuntu or Windows and run guest operating systems in it. Is it possible to run virtual machines without a host OS? ...
1
vote
5answers
1k views

Adding RAM to a virtual machine without restart

Could anyone suggest me a hypervisor that permits adding RAM to a running virtual machine without restarting the guest OS. Is this even possible? Can this be done on xen? I have never found any ...
5
votes
3answers
208 views

Where to install ESXi so that all local drives are available to VSAN

I am currently setting up a new 3-host VSAN cluster that will be placed into production soon. (Note this is the newer "Virtual SAN" (VSAN) technology, not the older vSphere Storage Appliance (VSA) ...
3
votes
1answer
830 views

Blank desktop when logging into a Virtualized Windows 2008 Terminal Server?

We have a Virtualized Terminal Server running Windows Server 2008. When the admin user logs in, everything is fine. When anyone else logs in, their desktop and start menu is blank (they have the ...
0
votes
0answers
24 views

Kickstart “Unable to download kickstart file. Check parameter”

So I'm using 2 VMs (CentOS 6.0), one acting as a build server, the other is a new server I'm trying to build with a kickstart. When I start the VM for the new server (with the build server already ...
0
votes
1answer
147 views

Find out ESXi host from VM? [duplicate]

I have a monitor that is running on all guests, Windows and Linux. I'd like to send back the Parent host of the guest with this monitor, How can I found out the VM host from within a ESXi VM? Ideally ...
0
votes
1answer
56 views

Could not connect to bridged VM with Win2012 host

I have the following setup. A physical PC with Windows Server 2012 (host OS) with VMware Workstation 9.02 with: Windows Server 2012 (guest OS) Ubuntu 12.04 (guest OS) The guest OS's both run as ...
14
votes
11answers
23k views

VMware Linux Server — how can you tell if you are a vm or real hardware?

An interesting question. I have logged into a Linux (most likely SuSE) host. Is there some way that I can tell programmatically that I am a VM host or not? Also assume that the vmtools are not ...