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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Using Virtual Machines to Test Driver Deployment

In SCCM 2012, we're currently deploying device drivers during OSD via task seuqnces, using the "Auto Apply Drivers"-step. Our company uses workstations and laptops of several different makes and ...
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14 views

Azure Virtual Machine outbound HTTP timeout

I've created a simple webapplication running on an azure virtual machine. The application is also displaying data from another website (http, 80), hosted outside of the azure cloud but also under my ...
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0answers
5 views

VMWare Tools: Share and Access Host (Windows) Folders

Probably the best environment for web applications development I have found is by using a virtual machine(Linux Ubuntu) within my host OS(Windows). This way, I can take benefit of Windows based ...
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7 views

Accessing JSON Server Hosted on a Virtual Machine [migrated]

I have set up a Linux Virtual Machine on my Mac (Kubuntu 14.04). On it I am running a JSON server using a Python script that is hosting it at localhost:8080. Is there a way I can access this from the ...
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1answer
24 views

Multihomed VM workgroup attached to domain clients, resolution issues

hopefully someone here can help me out with this nightmare: I have a corporate network with ADDS, let's make believe this is a 192.168.10.x network. I have a server that runs 3 VMs (one APP server, ...
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1answer
41 views

Is there anyway to do ssh on a VM with a local IP address?

Scenario :I am using KVM as a hypervisor and Ubuntu as guest and host OS. There are many VMs on a PM and I am assigning IP addresses to those VMs using NAT. To create VMs I am using a baseimage. So ...
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11 views

Separate bridge for each VM?

I have been experimenting with network settings ever since I got a new dedicated server for some root-started unprivileged LXC containers a few months back and have finally arrived at what might be a ...
48
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3answers
5k views

Is a VM with 2 CPUs really faster than one with 4 CPUs?

Our IT created a VM with 2 CPUs allocated rather than the 4 I requested. Their reason is that the VM performs better with 2 CPUs rather than 4 (according to them). The rationale is that the VM ...
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0answers
21 views

Hyper-V 2012 R2 creates multiple vEthernet adapters

on our Windows 2012 R2 Hyper-V Free server, which will host the VM now running on an ESXi, I messed up launching twice the Add-VMNetworkAdapter cmdlet. These are the steps I took: create a ...
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0answers
11 views

vpn over multiple connection from a device to an access point

In essence I want to know if there is any way that can use from single PC(actually now windows 7) to make multiple connection to an access point and use simple VPN (e.g pptp) over each of them. ...
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2answers
200 views

NTP running, server time is wrong on VM

The server time was 7 hours off (instead of 10AM it was 3AM, even though date showed the correct timezone). The output for ntpq was: $ ntpq -p remote refid st t when poll reach ...
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1answer
35 views

Server 2012 domain controller vm and physical hosts [closed]

I want to try out Server 2012 that is a domain controller running as VM on virtualbox or Hyper V running inside Windows 7. Can I still connect physical hosts to the domain controller AS well as vm ...
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1answer
37 views

CentOS Qemu+KVM lot of virtual machine processes

I am on host-machine with Centos 6.5, qemu+KVM and 2 virtual hosts in it (behind NAT). Both virtual hosts were configured with Virtual Machine Manager (one of them is with Windows 2003 and other with ...
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2answers
36 views

Connecting a LAN drive to Windows 2008 / 2012 VM instance on Google / AWS / Azure

Scenario: Our office uses a Sage software on multiple workstations. The software is individually installed on each workstations, but the database is stored on a server tower that has shared access to ...
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3answers
64 views

VMware CPU Hyper Threading Scheduling Affinity

I have looked everyware and read a bunch of documentation on this but haven't found a direct answer so here it goes: There is a setting in the "Resources" Tab in vCenter that lets you configure ...
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1answer
21 views

Should I deploy hadoop on physical machines or virtual machines?

We will deploy a hadoop cluster on hundreds(say 300) of physical x86 nodes. Since we have no much production deployment experience, there is a simple question as the title we want to hear response ...
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0answers
14 views

Let users upload own images in OpenNebula

I am currently checking out OpenNebula for easy VM management. My target is to allow a customer to create his own VM via the web interface (which is quite easy), but with a custom image. That means, ...
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0answers
38 views

Effect of firewall on virtual machine [closed]

We have a ubuntu-12.04 host machine that has another ubuntu-12.04 guest machine running in it. The network interface between the two is bridged. I would like to put the host machine behind a firewall, ...
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0answers
40 views

Checking if two virtual machines are running on the same host

Is there a way to see if several Virtual Machines are running on the same host? Specifically, I have three VMWare VMs (each running a Ubuntu Server 14.04) and I have tried to compare different pieces ...
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1answer
24 views

Nginx on VM on ded. root server has very slow download rates

I'm running VMware ESXI on a kimsufi dedicated root with 100Mbit/s network access. As the root has only 1 public IPv4 available and ESXi cannot NAT its VMs, I assigned the public IP to VM#1 which is ...
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0answers
20 views

CRM 2015 installation hangs without errors on Windows Server 2012 installed in a VM

I have installed a Windows Server 2012 and SQL Server 2012 on a VM using VMware Player and then installed Dynamics CRM 2013, working out all the configuration problems. The installation hanged once ...
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1answer
12 views

Azure VM CNAME Returns HTTP 502

I have a Virtual Machine in Azure with a Cloud Service VIP. I have opened up an HTTPS endpoint. If I alter my hosts file to point to the VIP, I can reach my IIS site without any trouble. So far so ...
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1answer
43 views

Moving Azure Virtual Machine which is Domain Controller to another region

I want to move an existing Virtualized Domain Controller from North Central Azure Region to East Region. I am aware about how to move VHDs and basically migrate it to another region. Though my ...
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0answers
45 views

How to make sure file in VM's folder is copied with VM when cloning VMWare Virtual Machine

I am running a vmware environment (Version 4 unfortunately) which requires me to use a bios rom file in order to run server 2012. I upload it to the root folder of the VM after creation, before boot ...
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2answers
41 views

Move Azure VM from one account to another in the same Bizspark subscription [closed]

I have a Bizspark subscription with 2 accounts using some of their services. One account which is mine, has 2 VMs running. Last week I started another VM without noticing that this one was going to ...
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2answers
204 views

Do Hyper-V Virtual Machine Guest Operating systems need to be shut down before restarting Windows Server 2012 R2 they are running on?

I am fairly new to using Hyper-V. I am trying to learn the best practice for shutting down and restarting my server when virtual machines are running on it. I have a physical server running MS ...
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3 views

Cannot get LAMP stack working on Ubuntu 14.04.2 LTS [migrated]

I have Ubuntu 14.04.2 installed as a virtual machine (VirtualBox) in my MacBook Pro. I am trying to get my AMP (Apache, MySQL and PHP) stack to run a web server, but I just cant get not even the ...
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0answers
10 views

Guest as Virtual machine connection to Host [migrated]

I have guest run on my machine on qemu with configuration: /usr/local/kvm/bin/qemu-system-x86_64 -enable-kvm -cpu host -smp 8 -hda ${TEST_VIRT_ENV_IMAGE} -m 4096 -netdev user,id=user.0 -device ...
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1answer
36 views

Need to Upload VHD's to Azure? Best Practice?

So im pretty new to Azure, but we don't have a solid backup for our VHD's. What's the best way to set up some "weekly" upload for VHD's that have changed for instance? We have about 3-4 TB's worth. ...
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0answers
21 views

Unable to connect Azure VM with new key generated

I lost my private key that I use during the VM creation, so I resort to create another one. I first run openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout privatekey.key -out cert.pem ...
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0answers
155 views

citrix xenserver 6.5 can't get vm's public network

Can't get my vm's guest out connection..! Premised: I alreay use xenserver on a test server dellt310 with two ethernet card that works perfectly, but now... -> I have an hetzner dedicated server ...
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38 views

Bus error during PHP5 is running a simple script - what?

When working with PHP scripts, I usually do not have to bother with the underlying system. Today, I have to. A PHP script (cronjob) that has worked fine is crashing since 2 days ago. The cronjob mail ...
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1answer
88 views

Error when trying to install Ubuntu 14.10 Hyper-v VM from Virtual DVD .iso [closed]

I'm trying to install a Hyper-v Gen 2 Ubuntu 14.10 Virtual Machine via a DVD .iso that I have attached as a virtual DVD on my Windows Server 2012 R2 First, two things that I know will be asked: ...
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0answers
24 views

Ways to “paste” code to a VM Linux Virtual Terminal

as most of you probably know, a desktop-enviroment-less Linux Server Distro doesn't have a clipboard that VMware can use as the clipboard is part of X (i believe) and thus not available. I wonder ...
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0answers
11 views

how to power on imported vmware vm on ec2 by using ec2 cli tools

I am unable to power on and see the OS and files of an imported VMware VM on ec2. Is there any chance to have a look at the OS and files on the imported VM by using CLI tools?
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1answer
77 views

Proxmox: 1 NIC, 1 Public IP, unable to get WAN interface working in VMs

I have a computer running Proxmox, and it has 1 single NIC that is directly connected to internet and has a single public IP. Then, I have different VMs (KVM) running and one of them is pfSense. What ...
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2answers
52 views

Restarting failed hosts on VMware vSphere ESXi

When a cluster is configured for High Availability (HA), VMs can be restarted onto an alternate host when the its host has failed. However, I am wondering: if the host has failed, is there a means ...
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1answer
45 views

Virtual Machine training setup for students [closed]

I went to a training session where I was learning to use some software. The course was administered through the use of virtual machines. The instructor had a laptop that was running some sort of ...
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0answers
49 views

Access port forwarded http service inside host only network vbox (docker)

I used vagrant to create a host only network for my ubuntuserver machine with this option: config.vm.network "private_network", type: "dhcp" Inside this box I have a docker container which is port ...
-1
votes
1answer
41 views

Open source firewall as a virtual appliance? [closed]

Is it possible to have an open source firewall which can run as a virtual appliance into a guest VM where all traffic from the other VMs should go through this firewall VM? And it supports also ...
2
votes
1answer
65 views

vSphere 5.5 in HA Environment and Autostart VM's [duplicate]

We have the setup as above which is "managed" by our vendor. During a recent power outage we found that none of the VM's came up upon the return of power (roughly 25 VM's), which once we discovered ...
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votes
1answer
300 views

failed to run bootloader: -3 on create with xl

I have a Ubuntu 14.04 migrated from Virtual Box Have 3 partitions. I've updated the /etc/fstab for recognize the new partitions and chrooted for update the grub I'm using the following ubuntu.cfg ...
3
votes
1answer
80 views

Move home directory on Azure Linux VM

I continue to encounter an issue moving my home directory to a new disk on a CentOS VM on Azure. On creation the server is configured to use a SSH key for authentication and the "no password" option ...
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0answers
26 views

What are the network prerequisites for Windows Azure Pack

I have followed many articles to install and config windows azure pack distributed, But every time I finish configuring everything, the azure pack is not working and give me different errors, seams to ...
1
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1answer
24 views

Locally runnable VM to simulate Amazon EC2 host

I'm currently managing an application hosted on the Amazon EC2 cloud. I'm curious whether it's possible to get hold of a VM that would most closely mimic the Red Hat environments that one deploys to ...
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0answers
39 views

PySphere ESXi 5.0 Python VM Provision

I found this tutorial on creating a vm with Python. http://jensd.be/?p=370 I'm stuck on the bit about "esx_host" I tried the IP of the ESXi server and 127.0.0.1 and the script errors saying it ...
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1answer
13 views

VMwaree Workstation. Estimate bandwidth between guest and host systems [closed]

How can be measured the bandwidth speed between Windows 8.1 as host OS and Turnkey LAMP (Debian I guess) stack as guest?
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2answers
149 views

Running containers inside a virtual machine?

It is my understanding that containers are much more lightweight than VMs because they do not virtualize the hardware but instead just isolate the software running in them from software running in ...
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0answers
57 views

Can't connect Windows Azure VM with MySQL On-premise

I have a VM on Windows Azure with Windows 2008 R2, and I'm trying to open a connection to an on-premise MySQL database hosted on another network. We cleared the VM's public IP (the one displayed on ...
0
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2answers
55 views

Azure virtual machines in the same network can't see each other

I created a virtual network in Azure and added few VMs in it. My expectation was to Ping/Access each machine from the other machine in the same network. However, machines don't seem to recognize each ...