A virtual machine (VM) is a completely isolated guest operating system installation within a normal host operating system. It is a software implementation of a machine (i.e. a computer) that executes programs like a physical machine.

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32 views

hyper-v restore to wrong virtual machine [on hold]

I am using hyper-v on windows 8. I created a new virtual machine using the NEW VIRTUAL MACHINE WIZARD. I chose option to "use an existing virtual hard disk file". However I overwrote the wrong vhdx ...
-2
votes
0answers
14 views

server capabilities for 2000 active users [duplicate]

I have a CentOS 7 with Apache2 and a Drupal application with a MariaDB database. The application must be available for 2000 users and sometimes about 1800 users will be using it simultaneously. I was ...
-6
votes
1answer
22 views

Turning on Virtual Machine gives this error [closed]

I am trying to do an assignment for my IOS 110 class. enter image description here The computer I have is Z230 Tower Workstation. Intel i7 4790 and 16GB RAM
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votes
0answers
17 views

KVM - Lost connection with virtual machines

I have to change de ip address of hypervisor KVM and his virtual machines, but when I restart de network services in physical machine, I lost the connection with the virtual machines. I’m using suse ...
0
votes
1answer
13 views

Server 2012 R2 - “The remote device or resource won't accept the connection”

I have a VM running Windows Server 2012 R2. I can access content hosted on the server fine, and I can access intranet stuff in the same domain, but I am unable to reach the internet. I have tried ...
0
votes
0answers
23 views

Cannot SSH into server from only one machine [closed]

So, I have been ssh'ing into a remote VM with a pub/private key auth just fine from one laptop. All of a sudden, I cannot ssh in. When I transfer the certificate to another laptop, it works just ...
-1
votes
0answers
25 views

Google Cloud Compute This account is currently not available [closed]

I have just signed up to Google Cloud and just created my first server using Cloud Compute. I have added my ssh key into the control panel, and have tried logging in with the first part of my email ...
0
votes
0answers
25 views

Ubuntu virtual machine (hosted on Windows) only connecting to google, facebook, etc [closed]

I was setting up GitLab and Gerrit servers for my company on a virtual image of Ubuntu when at some point (not sure what I did), I was unable to connect to the internet (besides google, facebook, and ...
-3
votes
0answers
20 views

run vmmware workstation inside esx vm [closed]

I have an ESX virtual machine and it has windows server on it, I connect through remote to this virtual machine. I've installed vmware workstation in it and want to run another virtual machine in it, ...
4
votes
1answer
56 views

vSphere: performance impact when a large VM has more vCPU than cores on a single physical CPU?

I'm running a vSphere private cloud configuration at a managed hosting vendor. The physical hosts have dual 14-core CPUs and 128 GB of RAM each. An application that we run can multi-thread expensive ...
-2
votes
0answers
6 views

Best VM Specs to run Redis On Ubuntu Server 16.04 [duplicate]

I decided to use a dedicated machine(vm) for my redis key-value store but I stuck what amounts of cores/threads it needs,redis just could utilize one thread and I'm scared if I choose only one HW ...
0
votes
2answers
17 views

Azure resize VM to premium storage

I have a classic D-series VM on azure whose load on the disks increased to the point where it needs more IOPS than supported by the regular disk blobs. I tried resizing it to DS-series, but I can't, ...
0
votes
0answers
4 views

VMWare Shared Storage not Syncing File Changes [migrated]

So, I am experimenting with a couple VM's. Both are fresh Ubuntu 16.04 installs, no updates, no vmware tools. Both are able to read and write to this SharedTest.vmdk, while both are running. What I ...
0
votes
0answers
5 views

VirtualBox 5.1 - Can not mount SATA device - a real partition (VERR_NOT_SUPPORTED) [migrated]

The host is Windows 10. I am trying to mount partition as SATA device on one VM but when the VMDK file is attached it throws the following error: enter image description here ws1-pt.vmdk is generated ...
1
vote
0answers
46 views

how to repair corrupted VMVare virtual machine file (.vmdk)

I have a WMWare ESXi virtual machine file that is corrupted after a power failure. VMWare does not recognize it as a valid .vmdk file also When I try this command: vmkfstools --fix check "myfile....
8
votes
3answers
198 views

Are the free Win 7/8/10 VM's Microsoft provides for testing purposes restricted or any different than their counterparts? [closed]

Sorry for the poor title, I'll explain better here. Microsoft provides free Win 7/8/10 Enterprise VM's inorder to test modern browsers here: https://developer.microsoft.com/en-us/microsoft-edge/tools/...
0
votes
0answers
15 views

Restrict internet access with firewall rules for a VM running on Linux [closed]

I have Red Hat 7 running on my workstation, and Windows 10, used for working with Windows programs, in a virtual machine running on KVM/QEMU. The workstation, fulfilling the role as hypervisor, and ...
1
vote
0answers
30 views

xen to kvm migration using virt-v2v

I am seeing error connecting when I try to connect for conversion of xen-vm to kvm. I am use virt-manager w/o problems. Errors seen: [root@localhost ~]# virt-v2v -v -x -ic "xen+ssh://10.61.0.47" "...
5
votes
2answers
326 views

What is the difference between containers and virtual machines?

I want to comprehend all that differ a container from a virtual machine. A filesystem with all operational system can be observed for both of these virtualization methods. But in a Docker container, e....
1
vote
0answers
31 views

How to limit the block usage on a Thin Provisioned VMs ( VMware)

This question is similar to Best practices for thin-provisioning Linux servers (on VMware) However my question is a touch different. We have P2Ved quite a few servers (win/linux) and we needed to ...
0
votes
2answers
68 views

Is VPS and VM same thing or is there any difference? [closed]

It appears to me that VPS and VM is the same thing because of the way they both work. But if we dig little deeper, is there any noticeable difference between the two like physical hardware, management ...
0
votes
0answers
7 views

how to choose nodejs virtual machine specifications? [duplicate]

I want to deploy my nodejs app in the production server,my app uses websockets alongside it's restful api,and all the other stuff such as database server and proxy server is on the different vms,my ...
0
votes
0answers
26 views

Server 2008 R2 Hyper-V VM blinking curser

After installing MS patches, my VM on a Server 2008 R2 Hyper-V boots with a blinking curser. I suspect to have issues with the boot and need to run a boot repair. However, I am unable to boot from the ...
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votes
1answer
54 views

How to create many cloud servers on behalf of many customers

I am trying to figure out a way to create cloud servers for customers that I wouldn't have access to. For example, if I have 100 customers, I need some type of sign up process for the user to create ...
0
votes
0answers
11 views

Create sparse VM image on OSX

I have a VirtualBox image (created by Vagrant) that I would like to convert into a sparse VMDK. libguestfs (virt-sparsify) doesn't support OSX Tried running libguestfs in Docker using libguestfs-...
0
votes
2answers
17 views

Migrate a ubuntu VM on virsh to a hyperv 2012 server

I have an ubuntu 13.04 server virtual machine on an ubuntu server 13.04 running libvirt 1.1.1. I want to migrate this to a hyper-v 2012 R2 server. I'm not terrible familiar with linux, and would ...
0
votes
1answer
24 views

Disable VM Autostart - XenServer

After running updates in XenServer 6.5 I noticed that some virtual machines that were recently turned off started turning on again automatically after the server I applied updates to restarted. When ...
0
votes
0answers
26 views

Deploying Windows 7 on VM with WDS - Driver Error

I installed a Windows 2008 SP2 Server (note, it's a windows 2008 server, not a windows 2008 R2 one!) on a vm and added the WDS-role to it. After that mounted the .iso from the Windows 7 - DVD and ...
0
votes
1answer
18 views

Replicate Azure VM's to use with load balancer

I want to have multiple VM's for my webtier and a load balancer configured in Azure. Currently I have 1 VM and load balancer working, I can easily create a 2nd VM and get it to work with the load ...
0
votes
1answer
30 views

Using Wordpress on a subfolder with microsoft azure [closed]

I'm implementing a wordpress on Microsoft Azure on a subfolder (something like http://domain.com/blog) All the servers are on a Windows, I did a workaround using an external server for the mysql and ...
2
votes
0answers
21 views

Create VM on Azure with an existing VHD

I'm trying to create a virtual machine on MS Azure plaftorm, from my existing VHD file. When i'm trying to, I get the following error. Is there any parameter to specify the NIC? Did some research on ...
-1
votes
1answer
28 views

Subnet cannot access internet on CentOS 7 with VMWare

Using VMWare Pro, I have two nodes with Centos 7 installed - one connected to my router with two network cards. The other is another node I want to connect to the internet on a different subnet. It ...
0
votes
0answers
12 views

Azure: Change OS Drive in Linux VM (non-classic)

My co-worker accidently turned on a firewall on an ubuntu machine in microsoft azure , which caused a complete cut of to the management via SSH - port 22 is now blocked. What i've done is: ...
0
votes
0answers
10 views

Are MAC addresses simple unique identifiers, or are there rules for categorizing MAC addresses?

Background Context: I've been scratching my head over an issue with my router picking up multiple VMs as a single device. I'm able to reserve ips for the separate MAC addresses, and as far as I'm ...
0
votes
0answers
31 views

VMware VSphere VM keeps getting ping and rdp unresponsive

I'm experiencing a very odd behavior on a win8.1 VM I have. After a while, it is becoming ping and RDP unresponsive, however this is still up and running in vSphere. To go around this issue, all I ...
0
votes
1answer
28 views

update azure scaleset - switching from prebuilt image to custom image

I deployed a scaleset in azure and I need to change the underlying debian-image by credativ to a custom image. I found some good sources that do not really work for me: https://msftstack.wordpress....
-1
votes
1answer
71 views

Kernel panic - not syncing: Attempted to kill init ( using qemu for a Rasbian ARM image) [closed]

I am using qemu 2.6.0 on my ubuntu 14.04 x86_64 PC. I want to emulate rasbian -- A Linux destro based on ARM Debian for Raspberry Pi. Here's the settings when using qemu /usr/local/src/qemu-2.6.0/...
0
votes
1answer
22 views

hyper-v accidentally removed snapshot

I (very stupidly) moved a Hyper-V snapshot via Windows explorer and then, of course the VM server would not boot. I moved it back and then removed the snapshot via Hyper-V so there are no snapshots ...
-1
votes
2answers
52 views

Unable to connect two PC's in a private Network [closed]

I have the following setting: VM1 (VMNET10 - private, without any other connection to the host system or the internet) VM2 (VMNET10 - same here ;)) Now i want to connect each other. I can ping ...
-1
votes
0answers
18 views

Find ESXi hostname from linux vm [duplicate]

Is there any way to find out the hostname of ESXi in which CentOS VM is running? Thanks! Ryan
-1
votes
1answer
50 views

Factory reset Windows Server 2012 R2 Standard Virtual Machines

I have two Windows Server 2012 R2 Standard Edition Virtual Machines running on a Windows Server 2012 R2 Standard Edition with Hyper-V role. As a student, I've been playing around with the virtual ...
0
votes
0answers
12 views

Route to VM sub network

I have a problem routing the fraffic to my Hyper-v Vms. I have an hyper-V server in an private network environnement (deployed in a Vmware lab infrastructure) together with other Windows machines. I ...
1
vote
1answer
34 views

How to update GCE instance management services

What are the services on Linux (CentOS) that communicate with the Google Compute Engine (GCE) infrastructure to configure and manage a VM (SSH keys, for example)?  These don't seem to be updated with ...
0
votes
3answers
61 views

Multiseat Linux Remote Desktop with KVM and Spice

I have a server running Ubuntu 14.04LTS. On it I created a (KVM) VM with Ubuntu 16.04 Desktop. I setup Spice on this VM so that I can access it remotely. Everything is working fine, got TLS, USB ...
0
votes
2answers
42 views

Transfer VM from inside (guest OS)

I need to clone VM and transfer it to another (dev) environment. But I don't have access to hypervisor. Do you know of software (trial/free) or algorithm for the task? I'm thinking the steps are ...
1
vote
1answer
45 views

SysPrep windows 2012 r2 for VM cloning

I'm trying to SysPrep a 2012 r2 std edition VM that I built which has IIS already configured for my website as well as some additional applications already installed and configured the way I need them....
1
vote
0answers
69 views

Export or Convert Hyper-V VM to OVA/OVF

I can't find (Google) any documentation on how to export or convert hyper-v VMs to OVA or OVF. The hyper-visor is Windows Server 2012 R2 Standard. The results from Google only point to System Center ...
0
votes
0answers
16 views

How to check that VMWare virtual machine is receiving sufficient resources from the physical server?

We have VMWare virtual machine in data center but applications on it suddenly started to be slow after one weekend. We are considering possibility that data center has moved virtual machine to other ...
0
votes
1answer
56 views

Udp port binding in VMware Linux

In my application, there're two physical computers, both in Windows environment. Computer 2 (with IP "192.168.2.2") has a VMware Linux virtual machine (with IP "192.168.80.129") installed on it. What ...
0
votes
0answers
4 views

Openstack essex instance status is going to pause

We have created a VM in openstack but its status is going to PAUSE and from then VM is freezed and doesnot respond to user actions. Please suggest me ideas as early as possible. Thanks for your time.