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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1answer
23 views

linux + how to verify VM defintion disk after redhat installation

We have couple of Linux servers all them are VM red hat Linux ( and they created by the Vsphere client , ) I want to know how we can capture on the Linux OS the following 1.Thick provision lazy ...
1
vote
1answer
46 views

Azure SQL Express 2014 VM: Cannot update/patch SQL Express

I created a VM using the standard Azure image "SQL Server 2014 SP1 Express on Windows Server 2012 R2". I immediately ran Windows Update and all patches for the server worked but the Security Update ...
0
votes
1answer
51 views

How to diagnose/troubleshoot tftp timeout

I have 2 VMs. One is setup as a pxe server (dhcpd with a specific subnet and a tftpserver). The second VM is networked with 'vboxnet2' to first VM and it is able to get the DHCP IP as specified my ...
0
votes
1answer
18 views

Difference between GPVM and LVM when referencing virtual servers?

I've been advised that there are two types of VMs available for enterprise use, but unfortunately have not been able to identify any resources that can explain what these are. The pricing between the ...
1
vote
1answer
30 views

Recovering KVM VMs when booting from mirrored host OS

Im running KVM on a Ubunutu 14.05 server. The server has 2 1.2TB drives which will each have 1 VM (elastic search nodes). I did a dd to clone the main OS and can boot from either disk without issue. ...
0
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0answers
9 views

How to use vmrun.exe with out popup VM WorkStation

I need to start and stop multitple VM's on windows OS with out popup VMWare Workstation on starting any VM. I use command line tool "vmrun.exe" with this code -T ws start ...
0
votes
1answer
40 views

azure availability set second VM shuts down first VM

I've got two Ubuntu VMs in one availability set. When I start the second VM it takes a few minutes and the first VM stopps. I'm a bit helpless (beginner) here. Any advice would be very apprechiated.
-4
votes
1answer
36 views

Virtual Server vs Dedicated Server [closed]

Could experts help me summarily tell me before deploying my web service App? Please. What is the downside of choosing Virtual Server over Dedicated Server?
0
votes
1answer
22 views

Should I continue to use MSDTC in my new virtual environment for MSSQL?

In the past I have used a two node cluster setup. All the services (SQL, File Server, App Server, DTC) were passed back and forth within the cluster as normal. Now I take a different approach. I ...
0
votes
2answers
360 views

Azure VM change OS Disk

I've create an Azure VM in RM and have deleted the VM and Components expect the OSDisk in an Premium Storage Account (Blobs). Now i wouldd like to create an new VM and attach the OS Disk to the new ...
-2
votes
1answer
28 views

Make copy of OVA before restoration or not

Good afternoon, When having to restore a virtual machine from a backed-up OVA file, should you select the source as the actual file itself or should you create a copy of the backed up file before ...
-1
votes
1answer
23 views

Virtual machine with separate desktop accounts [closed]

On our Centos-6.5 server, I want to install a temporary windows xp guest using virtual machines for windows applications. Thing is, I want to run the virtual machine in background and each windows ...
0
votes
1answer
93 views

On Azure Windows VM, Why do some ports open fine and others do not?

I am trying to set up FileMaker Server on a new Azure Windows 2012 VM (not classic). The step that has me flummoxed is opening the ports. I have created the inbound end points for the three required ...
0
votes
1answer
111 views

connect to smtp.gmail: Connection refused

I am trying to send mail via Ubuntu 14.04 version to my gmail ID. Ubuntu is running via VMware on my Windows machine. Please let me know if the above description is not clear as I am newbie in working ...
0
votes
2answers
42 views

virsh qemu kvm editing xml has no effect

When I try to add a network section to a kvm/qemu xml, the xml wont update with the information. When I edit the uuid, or make a mistake, i get an error. if i change the memory amount, it reverts to ...
0
votes
0answers
21 views

internet connection sharing Hyper-v virtual machine switch

I am running hyper-v. I created a virtual external switch and configured it to be shared with the host and the VMs. However the VMs obtain dhcp information just like the host does: same gateway, same ...
1
vote
0answers
23 views

Virtual disk backup: rsync alternative? [closed]

We currently use rsync to backup virtual disks to another computer. Rsync is slower than direct copy, but overwrite only modified parts in the destination files. This allow to make snapshots to have ...
1
vote
1answer
50 views

On a VM is it possible to get the name of the physical computer(thin client running Windows) used to connect to the VM(also running windows)?

Here is the problem I'm trying to solve: At work we have several departments that use thin clients that connect to a pool of VM's. The pool is called general and has about 75 VM's in it. One of the ...
0
votes
0answers
41 views

SSH connection Timeout using CHEF

When I run the following code in PowerShell: chef-repo> knife bootstrap windows winrm 172.25.174.27 -x Admin -P 'Microsoft@1234567' -N 'target1' I get an error: ERROR: ...
3
votes
1answer
214 views

How to upgrade multiple virtual machine operating system in VMware vSphere in a data center?

In our data center we have 4 physical server having ESXi 5.5 installed on them. On each physical server there are multiple virtual machines running on them and all of these virtual machines are ...
0
votes
2answers
71 views

Proxmox: Node's load at 70, 2 containers are not responding, but top shows nothing

I got a huge problem. Some of my Proxmox-based LXC-containers are not responding since 2 days if I do not reboot the node. This happens always at the same time in the night (I guess there is ...
0
votes
0answers
15 views

Are changes since snapshots still stored as changelogs?

It's been four years. Is the accepted answer of this question about VMWare still accurate? In other words (in case for some reason that link ever breaks), is this still true? When you create a ...
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votes
2answers
66 views

Mistakenly changed the Private IP Address [closed]

I had deployed an Virtual Machine with Windows Server 2012 R2. I went to "Network and Sharing Settings" -> "Change Adapter Settings" -> "Ethernet/Properties" -> "Internet Protocol Version ...
0
votes
0answers
23 views

Turning on a virtual machine in esxi remotely without full access to the dedicated server

so a bit of background. I've setup a virtual machine via esxi on an ovh dedi, for a friend to use (via tightvnc/teamviewer). However he's not needing it running most of the time, and to save on cpu ...
1
vote
2answers
30 views

Why limit execution cores if you're not an cloud provider

We're maintaining development of a system installed at a customer site on their virtual server. This application will at times need to run heavy work. However it's only been granted a single core. I ...
0
votes
0answers
21 views

ESXi 5.5: Clone a VM to template using CLI (on Linux)

How can I clone a VM to a template from Linux CLI. I tried using VMware vSphere CLI (vCLI) in vain, couldn't find an option to do so.
0
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0answers
30 views

IIS Websites running out of memory

I have a server that is hosted by the parent company as of recently. This server is running two websites. One is a memory hog, the other is much smaller in scale. We had a situation today where the ...
0
votes
0answers
24 views

Azure Linux based VM could not start. Internal server error

We have our own Linux based distribution for which we created a .vhd file from .iso using VirtualBox. We uploaded the .vhd to Azure following the instructions given here: ...
2
votes
2answers
89 views

rsync hangs on one big file

Each night I copy several virtual disks with rsync from one Linux Debian computer to another Linux Debian. Most files are raw images with "holes" into them: some parts were never written to, so remain ...
0
votes
0answers
15 views

Xen - VM not reflecting memory

I am using Xen to hot-add memory to virtual machines, but it seems that I am not getting the correct vales in /proc/meminfo on the guest. As displayed below the guest has 2 GB of allocated memory. ...
0
votes
0answers
27 views

ifconfig dont shows any tunnel (ipsec)

Im trying to connect to networks with ipsec. But its not working, after install and configure ipsec when I execute this command service ipsec start, I dont get any error, but with ifconfig none tunnel ...
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votes
2answers
58 views

Is it possible to use a ftps server (NAS) to use as a virtual hard drive in VMware vSphere Hypervisor, if so, how? [closed]

The title explains most of it. Basically, let's say I have a NAS(I don't). I want to allow another computer to use it as storage for a virtual machine on VMware vSphere Hypervisor. The software on the ...
0
votes
1answer
10 views

virsh auto restart after vm died

We have several VMs on our system. Sometimes there seems to be an issue with RAM management on the host system and one system dies quietly. We have setup the VMs to autostart on host start, which ...
2
votes
2answers
59 views

ZFS: very big files + compression + snapshots

I backup several virtual disks (total = around 4 Tb), with several weeks of retention time. I use 4 x 4 Tb disks in the computer dedicated to primary backup. The filesystem is ZFS RAIDZ2, so 8 Tb ...
0
votes
1answer
58 views

Serial communication between QEMU host and guest

I'm trying to set up a pair of serial ports between my QEMU host (Debian Jessie x86_64) and guest (also Debian Jessie, but on ARM). Everything except the serial port part works. I'm really new to ...
3
votes
2answers
105 views

Windows XP can't install network drivers even in VMware

I'm a sysadmin at a building controls company. We are trying to revive a Building Management Server with very expensive and important software on it. I cannot for the life of me, install a single ...
0
votes
1answer
64 views

Cannot connect remotely to a shared folder inside a vhdx

I am using Windows 10 to connect to a Windows Server 2012 R2 (VM) installed on a Hyper-V core host. The VM is set to share a second virtual disk where I allowed previously share and gave full control ...
0
votes
0answers
56 views

Proxmox VMs with single IP

so I don't know much about the bridges and all, but I looked around and tried to get it still working. I've got one IP for the server itself and I thought to use second IP on the VMs. I thought I did ...
-1
votes
1answer
50 views

Please explain the statement, “Containers are lightweight…you can run thousands on a server…” [closed]

In much of the hype around containers I often hear statements such as: Linux containers are very lightweight...you can potentially run thousands of them on a single server... I understand that ...
-1
votes
1answer
48 views

Unable to resolve DNS provided by azure for redhat linux VM

I am not a server guy and trying to configure a redhat linux virtual machine on azure for hosting a php website. While creating the VM I got a public IP and option to save a name for the DNS, which I ...
0
votes
2answers
56 views

Can't Log into Brand New Azure Virtual Machine created w/ Resource Manager [closed]

I just created a VM in Azure using the Resource Manager model. After it is setup, I downloaded an RDP client with this button: But no matter what I try, I can't log in. The machine is running. The ...
1
vote
2answers
99 views

equivalent to “Cloud Services” in new Azure portal?

I am really confused about how you can create the equivalent to "Cloud Services" in the new Azure Portal? In my understanding, Cloud Services is only a "Classic" feature now. In the new Azure Portal, ...
0
votes
2answers
48 views

multiple network adapters in virtual machines

I need to set up server infrastructure for a client with 20 virtual machines. There will be two SQL Clusters and other machines will be web servers and active directory. I have been suggested to use ...
-2
votes
2answers
43 views

Point DNS label to specify port

In Azure panel i can give a DNS label for my VM, but it doesn't point to 8080 as default. To access website by dns i have to type http://xxx.westeurope.cloudapp.azure.com:8080 I have specific 8080 ...
3
votes
3answers
483 views

Windows Server 2012 R2 (Hyper-V VMs) - random BSOD

I have a problem. My VMs (Hyper-V) - Windows Server 2012 R2 restart themselves quite often (BSOD: CRITICAL_STRUCTURE_CORRUPTION (109)). Last time it was 11x over weekend. I have new HW, 2x Supermicro ...
1
vote
1answer
40 views

Create a VM image that's OpenStack compatible

I need to create a image of a CentOS VM which would be OpenStack compatible. I'm having trouble determining on Google what the requirements for OpenStack are. Can someone please help? My node is on ...
0
votes
1answer
47 views

Bridged networking on VM host and hairpin NAT

I have one host running Proxmox VE. I set up 3 virtual bridges vmbr[0-2] to handle my networking needs: vmbr0 runs directly on the main interface for VMs with public IPs, vmbr1 allows for NATed VMs, ...
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votes
1answer
49 views

Virtaul machines on Intel Xeon e5420 cpu [duplicate]

I google around to find out how many cores in intel xeon e5420 cpu, but not got the actual answer. I have intel xeon e5420 cpu, I would like to run multiple virtual machines with 2 cores on each, how ...
-2
votes
2answers
30 views

Run multiple virtual machines on a virtual server [duplicate]

Is it possible to run multiple virtual machines on a virtual server? I am on a project and I want to run an Intrusion Detection System as distributed using many ubuntu virtual machines. Is it possible ...
0
votes
0answers
19 views

Prevent VMware virtual machine cloning or copying by users

Is it possible to prevent users who are admins on a host machine from cloning the virtual machine? Users should be able to launch and use the VM from the host machine with no restriction. But if ...