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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No network adapters in Virtual Machine after converting from VirtualBox to Hyper-V

I've migrated from Oracle's Virtual Boxx to Microsoft Hyper-V running in Windows 2012R2. My virtual machines are also all Server 2012 R2. After migrating from VirtualBox to Hyper-V and creating new ...
2
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3answers
2k views

Can I add a second network adapter to my Azure VM?

I have Multiple VM's on Windows Azure. Default, they come with 1 network adapter and you can only assign 1 virtual network (Availability Set) My question is : possible to connect 1 VM to more then 1 ...
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1answer
86 views

How to create a bootable ISO image from a disk snapshot

I've taken a disk snapshot of my Ubuntu VM from Amazon EC2. The snapshot is a ZIP archive of the whole disk. I've downloaded and then extracted the snapshot. Now I would like to create a bootable ISO ...
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0answers
29 views

fdisk -l do not detect device accessed using iscsi o XEN virtual machine

I am experiancing an issue in accessing the iscsi target in VMs created on XEN hypervisor. I have used Suse 11 SP3 to configure this. After discovering the iscsi targets from VM , I am able to view ...
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1answer
171 views

Disk partition to Virtual Machine / OpenVZ container

I am relatively new to running virtual machines / OpenVZ containers so if I have miss understood something please let me know. I currently have Ubuntu 14.04.1 installed straight to a partition on my ...
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42 views

Automatically configure networking on new VM in XenServer

We have a base RHEL 6.5 64-bit template that we use to create new VMs in XenServer. Every time we make one, we have to configure: /etc/hosts /etc/sysconfig/network ...
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0answers
131 views

Hyper-V VMs keep losing network connection

We had a major power loss in our server room two days ago and several Cisco Nexus 2232PP FEX devices went down. We were able to get everything back online, but since that event we've been experiencing ...
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1answer
52 views

Should the Windows Time (W32Time) service be enabled in an Azure VM?

When connecting to a newly created VM in Azure, there's an alert under Services: When clicking on it, it says the Windows Time (W32Time) service is stopped: Should it remain like that, ...
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1answer
669 views

How can I change Qemu KVM machine architecture from 440fx to q35 with virsh edit or virt-manager

Still trying to get GPU passthrough working and decided to change machine type from older 440fx to q35 ie pc-q35 but if I do virsh edit on the config it refuse to save saying "PCI Bridges not ...
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2answers
68 views

How to crash Oracle VM intentionally by loading system parameters

I am using Oracle VM. I want to perform a stress test on system parameters like CPU, RAM etc. Can anyone help me out with the ways in which I can load the parameters with high load like using all the ...
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1answer
3k 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 ...
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0answers
29 views

Mysql with low memory on development environment

How to set mysql to run on very low memory? (preferably under 100MB and max 250MB) Currently it's running for about 400mb. I can't turn off the innodb because production using innodb. Is there any ...
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1answer
34 views

Upgrading infrastructure [duplicate]

I work for my company's ECM group and my manager is considering pushing to upgrade the server infrastructure due to an increasing user community. Currently it's a single VM that has 2 cores and 4 gigs ...
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1answer
134 views

Azure Shared Ubuntu VMs dns each other

I have two Azure Ubuntu VMs. Named: myweb01.cloudapp.net and mypg01.cloudapp.net. When I'm on myweb01 i issue an nslookup mypg01.cloudapp.net which fails: azureuser@myweb01:~$ cat /etc/resolv.conf # ...
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1answer
186 views

host only network xen 4.4

I have one IP address (ipv4) and I am trying to install a domU (debian stable) on a dom0 which runs the latest xen 4.4.1 on debian testing. I have created xenbr0 bridge and it is mapped to my eth0. ...
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1answer
491 views

Xen guest - cannot get network connection beyond the host

I've just installed a XenServer 6.1. It came with a standard configuration, network 0 connected to NIC 0. I created a VM but I can't reach any network beyond the host. From the VM (172.18.32.20), I ...
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1answer
195 views

VMware vSphere VM at 100% workload CPU when real load average is near 0

I'm using VMware vSphere 5.5 on an ESXi 5.5 Host to host a small private web site. Host server is an HP ProLiant 380 DL with 50 GB Ram, 1 TB SSD storage, 2 Intel Xeon 5550 CPU. There are 10 running ...
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1answer
749 views

Backup and Recovery Strategy for a VPS

I have several small virtual private servers running ubuntu 11.04. I currently have VirtualMin managing the backups for the server, however, it only backs up the users' home folders and the ...
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1answer
46 views

Connect to VMware workstation vitural machine from another computer on the network [closed]

How can I set up the networking on my VMware Workstation so that I may connect to webpages hosted on the VM within the same network? Update: Tried bridge networking and can not get it to connect to ...
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0answers
47 views

Do some network administrators assign MAC addresses with an unassigned OUI?

I am in a situation where I have observed MAC addresses on a network that do not belong to any assigned OUI range, and this is causing some issues. I suspect the cause here is a heavy use of ...
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1answer
136 views

Is there a way to connect VMWare Workstation / Fusion to non-esx Libvirtd-managed virtual machines?

I'm using KVM virtual machines managed through libvirtd server-side for most of my projects. On my desktop however, I'm using VMWare Fusion Professional which, just like its VMWare Workstation cousin, ...
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1answer
105 views

Virtualized Linux firewall as router on the stick for cisco switch

I have got: Linux(virtual maschine on esxi) <---trunk---> cisco Switch. On virtual maschine vSwitch setup: VLAN ID 4095 Enables trunking on port group (VGT Mode) LINUX interfaces file: ...
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1answer
90 views

how do you stop and deallocate a windows azure virtual machine

If I shutdown a virtual machine in azure, it shows it's status as 'stopped'. But I am still getting billed for cores until I can get the machine into a 'stopped (deallocated)' state. How do I get ...
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1answer
37 views

What's the difference between Jumpbox and Microsoft App-V?

My organisation has been using App-V to package deployments to users machines in a Windows environment. We're now evaluating Jumpbox as a replacement in this space. The great thing about App-V was ...
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0answers
136 views

Configuring SoftEther on VM with two virtual ethernet card

I am very novice in networking and I just have basic knowledge. I have scenario that I'd like implement. I have a VMWare Windows 7 VM with two network interfaces. One shares the host's network using ...
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2answers
5k views

VMplayer Virtual Disk Shrinking/Compacting/Defragmenting

I am using VMplayer on Windows 7 and 2008 R2. Inside the guest OS, in VMware tools, there is a "Prepare to shrink" option on the "Shrink" tab. In the host VMplayer menu there is "Defragment" and ...
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2answers
1k views

understanding relationship between Qemu and KVM

What is the difference between KVM and Qemu? As I understand, latter is able to provide "user mode emulation" which means that one can run a single executable built for some other architecture like ...
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1answer
59 views

Move an ESXi 5 image to anohter server

I have an ESXi 5 server with two large VMs. Both have several snapshots that have accumulated over time. I set up another ESXi to use as a backup system, but I am having trouble getting the images ...
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2answers
55 views

Backup VMWare virtual server

I have a virtual server that is constantly running, lately we tried to do a backup for it and we were surprised that the modification date of all the image files is a couple weeks old. We are trying ...
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1answer
135 views

Sql Server 2012 Disk I/O Too high

I am running SQL Server 2012 on windows azure VM Windows server 2012. This is a live Database, about 250GB, with high usage. I applied some best practice articles for the temp-db long ago, and also ...
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2answers
116 views

How can I ssh into a vagrant virtualbox VM from an external machine?

I'm trying to set up a server on my desktop with vagrant, but while I can ssh (via PuTTY) into the VM at localhost:2222, I can't ssh into it via my local or public IP addresses - even though I have ...
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5answers
25k views

What range of MAC addresses can I safely use for my virtual machines?

I want to assign my virtual machines MAC addresses so that I can configure DHCP reservations for them so that they always get the same IP address regardless of which host hypervisor they are running ...
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2answers
363 views

Determining the physical host name / IP from the name of a virtual machine

Is there any way to determine the host name or IP address of the physical host H given the name/IP address of a virtual machine running on H? Thanks.
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1answer
98 views

Advice on backup solution for Azure virtual servers?

I need to devise a backup solution for some Azure virtual machines, in a hybrid cloud scenario (persistent VPN, Active Directory DCs present in both the company LAN and the Azure virtual network, all ...
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1answer
63 views

What is a good new server setup [closed]

Currently we have a server with several functions: domain controller, SQL server, WSUS server, file server, print server, exchange server, backup exec And in addition we still have an old server with ...
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0answers
55 views

Replicate server environment and directory structure using Vagrant

I am a developer by trade but am not used to configuring VM's and servers, so I apologize if these questions seem rather novice. I have recently started trying to use Vagrant for local development of ...
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1answer
64 views

Get Access to root of Linux based virtual Appliance / Machine [closed]

I have installed an OVF on an ESXi standalone host, the virtual appliance is Linux base and i need to get access to the Linux Kernel of virtual appliance and do some change on it. it seems access to ...
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1answer
133 views

MS Access DB performance on a VMware virtual machine

In our office, we have a Windows 2008 virtual machine hosted on an HP ProLient ML350 G6. This VM has access to all of the resources available on the host. On this machine there are some Microsoft ...
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3answers
6k views

VMWare Server 2.0 auto start VM

I have a production server running vmware server 2.0. I want one of the VM's (company intranet) to power on automatically if the host server is rebooted. I searched online and found references to an ...
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1answer
46 views

Connectivity loss between VMs on VirtualBox until DNS cache is restarted

I use VirtualBox for a lab environment with VMs running various versions of Windows. One thing that keeps happening and I don't know why (never seen it before on my VMware servers) is that DNS ...
1
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1answer
343 views

Extend root logical volume for VM with Oracle Linux of VMWare

Please make me sure did I wrong thing, or not. I'm resizing the root partition which is under the LVM. This server is a VMWare's virtual machine with Oracle Linux. I'm using this article: ...
2
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2answers
272 views

DNS not resolving the same as host

We have an OSX host and an ubuntu 10.04 vagrant instance running on virtualbox. While attempting to send an email to emailtests.com (for email testing purposes) we noticed that the DNS was not ...
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12answers
41k 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).
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2answers
1k views

FTK Image to VMDK

It seems that most of the posts I can find show me how to take a VMDK and convert it to an FTK Image for processing. I'd like to go the other way, and get a bootable VMWare image. I've found the ...
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1answer
35 views

change a group of guest host os password in VM [closed]

I am the build guy and need to manage 300-500 build machines in a VM host for company. Now I need to change password for all machine's "build" account Do I have a way to change it without log-in into ...
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2answers
65 views

How many websites per virtual machine? [duplicate]

We are currently hosting about 10 of our own various websites on a virtualised host. Each website is hosted by its own virtual machine with its own apache. Some of the sites connect to a shared ...
2
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1answer
114 views

Xm setup on SunFire X4200

I'm trying to set a Xen VM on a SunFire X4200. I'm using Debian Wheezy and have followed this guide https://wiki.debian.org/Xen which I used in previous attempts on different servers and worked ...
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1answer
153 views

How to create a snapshot volume to a remote server using kvm?

I want to backup a few virtual machines to a backup server. Here're the backup steps. suspend a virtual machine create a snapshot of the virtual machine using lvcreate -s resume a virtual machine dd ...
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1answer
120 views

VM load and ping problems after replacing server motherboard

Recently, we had to replace the motherboard of one of our servers. The procedure was done by IBM as it had guarantee. The server runs ESXi 5.1, with several virtual machines, including our main mail ...
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1answer
82 views

Host CPID, Geast CPUID and UserCPUID / what are they?

i found out that there are some IDs associated to the CPUIDs in vmx file of each virtual machine, these IDs are; hostCPUID.{Num} hostCPUID.80000001 guestCPUID.{Num} guestCPUID.80000001 ...