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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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
77 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 ...
1
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1answer
239 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 ...
3
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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
54 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
560 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
votes
2answers
347 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 ...
18
votes
12answers
48k 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
2k 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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votes
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
77 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
130 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
185 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 ...
1
vote
1answer
169 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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votes
1answer
127 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 ...
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4answers
8k views

Why VM snapshots are affecting performance?

I read in one of the VMware KB article says that snapshots will directly proportional to VM performance. But my team keep asking me how snapshots can affect performance. I would like to give them ...
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1answer
68 views

Virtual guest: NTP sync with host

Is there any way to get a virtual guest to only query it's current host for NTP? I'm not talking about configuring ntp.conf with the host's IP here either as VLAN's & firewalls may block that ...
2
votes
1answer
633 views

What could cause an Azure VM to stop responding completely?

I have an Azure Linux VM running MySQL, which has stopped responding for the past 24 hours - ping, SSH, MySQL and everything else timeout when trying to connect to it. Yet the status shows as ...
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1answer
28 views

Configure when an Azure Virtual Machine is updated

I have provisioned a small VM within Azure to run some macros within an instance of Chrome. The Chrome instance starts doing it's thing around 02:00 GMT finishing at around 04:00 GMT. The problem ...
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1answer
78 views

How to add an existing encrypted vHDD to a new virtual machine?

I am using VMware workstation with encrypted virtual hdd-s. I tried to use one of the vmdk files as an hdd on another virtual machine, but when I try to add them as an existing disk, I get the ...
2
votes
1answer
11k 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 ...
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2answers
1k views

No external network access to virtualbox CentOS6.5

I have CentOS 6.5 running locally in virtualbox. I set it up and everything was working perfectly. I came back after the weekend and I noticed the computer was frozen so I had to do a hard restart. ...
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1answer
81 views

booting straight into xen VM

I have a need to convert a bare-metal machine to a virtual-machine (via VMware converter). This part has been done successfully. I have then been asked to convert the vmware image to a XEN hvm. The ...
3
votes
1answer
812 views

How to move Hyper-V virtual machines to Azure with minimal impact?

My company is in the process of transitioning some of its on-premises services to the Microsoft cloud; some of them are being replaced altogether by hosted services (Exchange, SharePoint); some other ...
0
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1answer
138 views

Random bluescreens during VS2012 C++ compile

I have a Windows 7 VM (ESX) with Visual Studio 2012 that handles continuous integration for a large C++ project. The solution currently builds with the /MP flag, but bluescreens have occurred using ...
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2answers
134 views

How to block a VM from accessing other machines on network - XenServer

This might be a little far fetched and might not be possible. I have a virtual machine that will have files on that I don't want people to be able to transfer off - they are allowed access, I just ...
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0answers
49 views

Is it fair to compare a 2XL AWS instance to a similar setup on a rack server?

I'm trying to create an extremely basic model of what a setup in Amazon Web Services might look like translated over to an on-premises cloud. I'm aware that Amazon is quite SAN-reliant, and pretty ...
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1answer
55 views

Set up a two-machine-development environment

I took over a SharePoint developing virtual machines images (VMWare) after a colleague quit. It is a two machines developer environment, one with SharePoint Server, the other one with SQL. When I ...
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0answers
105 views

How to fix location of VirtualBox VDI HDs?

I have a lot of VMs using differencing VDI HDs. After moving the VMs to a new directory the location of differencing VDI didn't change: UUID: a78ba2c4-6c3d-4a2a-be86-dc26cb0c7564 Parent ...
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0answers
79 views

Multi-user Eclipse CDT on virtual machine

I'm a bit new to managing mixed OS environments, so please be gentle :) I'm currently in the process of enabling a small group of people (<10) to develop a Linux app in parallel, and I need a bit ...
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votes
1answer
170 views

How to connect to an Oracle 10g database on the host computer from Ubuntu installed in VMware? [closed]

I have Oracle 10g installed in my host system which is running on Windows 7. I have also installed Ubuntu in the same system using VMware. Now I have written some program in Ubuntu which needs to ...
1
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0answers
838 views

Puppet agent (v3.0.1) hangs connecting to master (v3.1.1) in VM behind firewall (with NAT based access)

I am using puppet agent v3.0.1 (On FreeBSD), trying to connect to a puppet master v3.1.1 (On Ubuntu) and the puppet agent hangs with the following debug output: puppet agent --debug --no-daemonize ...
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votes
1answer
118 views

Connecting to KVM VM via VNC [closed]

I just installed KVM on centos 6.5 and after I created a VM I don't know how to access via VNC. I used this command to create the VM: virt-install --name=guest_name --arch=x86_64 --vcpus=2 ...
9
votes
3answers
3k views

EC2 VM import: VirtualBox

I would like to know if it's currently possible to import a virtualbox vm on the ec2 cloud, I have tried with a virtualbox vmdk but it did not succed. Apparently it is designed for VMware's vmdk ...
0
votes
1answer
595 views

how to configure linux vm as router which communicate between two subnets

I have 3 virtual machines installed on vmplayer. Out of which I have made two of them as host of two different network. Host1 ip=192.168.1.13 gateway=192.168.1.11 and Host2 ip=192.168.2.14 and ...
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votes
1answer
802 views

Can I PXE-boot a desktop PC into a Hyper-V VM? [closed]

I just started exploring Server 2012, and the Hyper-V features are compelling for my place of business. Here is the question: We have several computers around the facility currently running XP and 7. ...
0
votes
1answer
319 views

Disable VMware BIOS Legacy Diskette

In the main tab of VMware BIOS setup utility there is an option to disable "Legacy Diskette A" (and B). Which is the option to get this by means of the vmx configuration files? I tried: ...
1
vote
1answer
70 views

Measuring performance for an entire Virtual Machine

I have an ETL process that I'm trying to deploy as a virtual machine across a few different "enterprisey" networks. I know it's relatively lightweight, but one client is very interested in the ...
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votes
4answers
233 views

Feasability of running a Virtual Network [closed]

I used to run an Active Directory domain on my home network, but have since migrated back to a plain old Workgroup. However, since my job is in .NET software development, I'd like to be able to work ...
0
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1answer
432 views

ESX Unix guest & AnywhereUSB [closed]

We got a Nagios (FAN) VM within an ESXi little cluster (4 servers). I have to configure SMS alerts with Nagios, so I have to plug a phone via usb. Problem : I want my usb to be seen even if my VM ...
6
votes
1answer
1k views

Azure Virtual Machines - what fault tolerance do they provide?

We are thinking about moving our virtual machines (Hyper-V VHDs) to Windows Azure but I haven't found much about what kind of fault tolerance that infrastructure provides. When I run VHD in Azure, ...
3
votes
3answers
2k views

Synchronize vmware virtual machine

I have 2 Linux Host VmWare Virtual Machines: one in a desktop and the other in a laptop. They use vmware player. What is the best way to synchronize the Virtual Machines? They are never used in the ...
0
votes
1answer
262 views

iptables configuration on Windows Azure (CentOS 6.5) for endpoint load-balanced set

I created 2 VMs (CentOS6.5) on Windows Azure for Postgresql database and HA cluster, everything works fine except when I set iptables service on, the endpoint load-balanced set is down. for security ...
0
votes
0answers
198 views

IIS App Pool recycling unexpectedly

I am running IIS in a Parallels VM of Windows Server 2012 on a Macbook (development machine) and any time any of the files in the website change (CSS, HTML, doesn't matter), the App Pool is recycled. ...
4
votes
1answer
44k views

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

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, ...
0
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2answers
194 views

Host Websites on Virtual IP VMs

I have Proxmox Virtulization server installed. But i have one real(Public) IP. Incoming request to Proxmox server must be bind Virtualized servers. Dnsmasq installed in Proxmox Virtualization Server. ...
0
votes
1answer
92 views

OSSEC - Multiple VM's on a single DELL blade (XenServer Hypervisor)

I have a DELL blade with ~100 VM's (with a Citrix XenServer 6.1 hypervisor), all with ossec agent connected to a ossec server outside that same blade. I have a bit of a problem: they all run rootkit ...
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votes
1answer
336 views

Can't access localhost on a VM Windows Server 2012 Azure

Hi I'm new to VM Technology. I have a Microsoft Bizspark Account with Azure on it. I created a Virtual Machine, Windows Server 2012 and installed Xampp on it. Yeah I know it would be better to use IIS ...
2
votes
1answer
181 views

KVM bridging for virtual machines is not working

After restarting the server, I can not ping and reach my virtual machines from the net and vice versa [root@pc1(192.168.0.114) ~]# ping 192.168.0.63 PING 192.168.0.63 (192.168.0.63) 56(84) bytes ...
1
vote
1answer
66 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 ...