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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Share Ubuntu VM folder with Windows to use Visual Studio with Docker Volume [migrated]

I've been using Docker for nearly a year, running it on a Ubuntu 14.04 VM, with Sublime Text 3 for programming in Javascript/php. I would like to be able to also use visual studio for editing the ...
1
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1answer
24 views

Virtual web server configuration dmz

I have 2 rx300 server with Esxi and I want to use one of these as web virtual server with 2 VM running: - Mail server - WEB server for enterprise website and ecommerce. the esxi server has an iscsi ...
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0answers
13 views

How to prevent virt-viewer from asking a password

I am aware of what file I need to create, in order to prevent virt-manager from prompting me for a password. However, I'd like to create a shortcut on my desktop that opens directly the virtual image ...
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1answer
19 views

Azure VMs and load balancing

am new to windows azure. I recently set up a vm and host a website, according to the SLA i need to have 2 VMs in the availability set. Now i did set up the second VM. My questions what do i need to ...
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1answer
16 views

How to edit the XML config file of a domain with virsh? [closed]

How to easily edit the XML config file of a domain with virsh?
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0answers
25 views

something wrong with ftp connection in linux VM and windows host

I use preconfigured and set-up ubuntu minimal with wordpress on vmware. Everything is good, but FTP connection does not work as expected. I try to connect to the FTP server from windows but this gives ...
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1answer
29 views

Unlock Azure VM Local Administrator Password

I have been looking at this question and most of it makes sense but a lot of it is going over my head. I'm a software developer and my I.T Admin' has left leaving me with hard job of unlocking a ...
1
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1answer
33 views

Creating a virtual network for KVM guests spanning multiple host machines

I have 5 physical machines running Ubuntu 14.04, all of them are together in a network. These all have static IP addresses. Each of these machines has 1 to 4 virtual machines via KVM/QEMU running ...
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0answers
17 views

Can't ping guest from another computer but can ping VM Management [closed]

Just installed ESXi 6. Added a virtual machine to it. All IPS got assigned via DHCP server on my router. What is strange is I can't ping guest OS, but I see DHCP lease for it on my router including ...
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1answer
22 views

vagrant virtual machine making macbook run extremely hot [closed]

Everytime I run vagrant up to start my Vagrant box for development work my Macbook Pro fan kicks on and churns endlessly. The vagrant box is a Linux virtual server (CentOS) running Railo, Tomcat, ...
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0answers
17 views

Cannot connect to Sql Server 2014 running on VM running from Hyper-V Server [closed]

I cannot connect to sql server from any other desktops or servers. The VM is running Server 2012/Sql Server 2014 with a Hyper-V Server 2012 host. The host has a switch with external network ...
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1answer
40 views

how do I clone a disk that is represented by a vmdk file?

I have VirtualBox installed on Windows 8.1. I have created a CentOS 7 virtual machine that loads the contents of a detached hard drive that is connected to the PC via a SATA Wire. The virtual ...
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0answers
19 views

Unable to create VM from Azure CLI

When I try to create a new VM from Azure CLI, I get the error: "VM has been created, but there was an error during provisioning. Error: OS Provisioning failed for VM 'testvm' due to an internal ...
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0answers
26 views

Best practices for scaling and capacity planning : VM only ? VM+Container ? Container only ? Cluster ? Something else?

(I can't find a similar question which has been already answered but maybe I do not use the good words as I'm a french student ;)) The closest answer to what I'm looking for is : Scalable Web ...
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2answers
69 views

How to get public IPs on ESXi VMs?

We have a dedicated server with a hosting provider. We are running ESXi 6.0. The server has a single public IP which is currently being used for the management interface. The provider has also ...
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0answers
16 views

unable to use umlauts/german keyboard layout in virtual machine [migrated]

I'm trying to setup virtualization but am unable to use germany keyboard layout. The letters ö,ä,ü are not recognized when I try to setup the keyboard. The push of those buttons doesn't trigger a ...
1
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1answer
33 views

KVM Bridged connection not forwarding ports?

Host and guest are both CentOS 6. Guest has an admin panel listening on port 15672 that I am unable to access from the outside. From the guest, curl localhost:15672 and curl vm1:15672 give me the ...
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0answers
16 views

Apache returning cached version when modified from Windows

We are running Windows 8 with VirtualBox running Centos with Apache. We have a Windows path mounted in the VM so we can edit content and when we save it in a Windows application the change doesn't ...
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0answers
72 views

View PHP error logs on VM - Vagrant CentOS via Puphpet

I have a Vagrant VM running CentOS, which was built from a puphpet file (config.yaml), and I'm trying to get the PHP error logs setup and accessible. config.yaml - PHP section: php: install: '1' ...
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0answers
31 views

Optimizing Performance for a Reverse Proxy Apache Server Hosted on a Virtual Machine

I am relatively new to web hosting, and I'd like to learn how to go about optimizing a server setup. Let me start off by describing my setup. I have an apache server, which sits on a vmware virtual ...
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1answer
24 views

Setting Email Notification for Virtual machine whic are down or services that are stopped in Azure Cloud

We have more than 10 virtual machines in our cloud environment.there are some duration during which our virtual machine get stopped or the services get automatically stopped. We tried with creating ...
3
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1answer
83 views

Qemu+libvirt+kvm significant performance lag in VM's

I am troubleshooting poor performance on our new VM host machine which is a Dell PowerEdge R415 with hardware RAID. We've got about 20 VM's running like this: qemu-system-x86_64 \ -enable-kvm \ ...
1
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1answer
27 views

Using query string to redirect/rewrite to different internal IIS sites

I have an Azure VM that is hosting a web application. The application will be accessible via the VM's IP address: http://191.238.112.62 I want to be able to use query strings to redirect to ...
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0answers
13 views

Storage Capacity Requirements for Virtualization Project [duplicate]

I am starting a new virtualization project at my internship this summer and I need help pegging the storage requirements for the new physical host. While I understand the principle of sharing ...
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0answers
20 views

MySQL Master migration

I've run into an unforeseen issue regarding a MySQL Master node: The cloud instance on which it's installed is soon to be retired. I've not needed to perform a migration like this before, so I'm ...
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0answers
15 views

How do you setup pass through authentication for a hyper-v enhanced session?

I have tried the solution on this Technet article but there is no user credentials section in the "Hyper-v Setting" dialog. I have also tried the way I normally setup auto login, when I need it, with ...
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0answers
27 views

Windows IIS hosting on VM using CentOS 6

Like this fellow here, I also have a 1&1 server, which requires me to use only NAT forwarding. I have installed using the CentOS6 / Xen server (I forgot which command line command it is) and ...
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1answer
57 views

Switching back to libxl from xend without rebooting

I did something dumb: I enabled xend over libxl and started an instance with xend. Now, libxl won't start any instances, even though I got rid of all the xend instances and stopped xend: root@xen1 ...
1
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1answer
30 views

Virtual networking, can ping and traceroute, can't apt-get update [closed]

I'm building a virtual network with 6 virtual machines in virtualBox. One of them acts as router/nat/firewall. This first machine uses 4 network cards: eth0 -> Internet eth1 -> Subnet 1 eth2 ...
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0answers
55 views

PING icmp open socket: Operation not permitted in vserver

I am running a vserver environment with several virtual machines. A single VM has the following problem: $ ping 8.8.8.8 ping: icmp open socket: Operation not permitted $ ls -l $(which ping) ...
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0answers
11 views

OpenSUSE Xen Multiple Apache VM's

I am attempting to set up an OpenSUSE 13.2 server with Xen Hypervisor installed. The problem I have now encountered, is how do I route the correct requests to the correct VM instances. Lets say I ...
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votes
1answer
17 views

Var folder maxing out /dev/mapper/vg00-var

Over the past few years we have had multiple linux servers have the same problem time and time again, our /dev/mapper/vg00-var folder max out at 100%. which means all sites on the server die. We have ...
2
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1answer
85 views

Do I need to use Sysprep to clone VMs on my personal lab? [closed]

I’m a programmer and I’m trying to build up my personal Lab. I have a machine with Hyper-V Standalone Server 2012 R2 installed. I need to create VMs which will be used for testing applications, ...
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1answer
28 views

How to configure VM IPs on VMWare ESX Host

I have rented a server from So You Start that runs VMware ESX 6.0 on it. I have bought IPs to use them in my VMs bu t the problem is i cannot make them run VMs. I did exactly what this guide says for ...
0
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2answers
62 views

Setup Azure VM - Connect to internet

I'm basically a total novice in the area of VPN's and DNS servers. I have an Azure VM which I have created and I need to connect it to the internet, and googling sends me to pages where peoples ...
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0answers
31 views

ERROR: OpenSSL::PKey::RSAError: data is too large for key size", when trying to upload cookbook 'learn_chef_iis'

I am receiving the following error message: "ERROR: OpenSSL::PKey::RSAError: data is too large for key size", when trying to upload cookbook 'learn_chef_iis'. I was following a CHEF tutorial and now I ...
0
votes
1answer
51 views

Forward domain to website hosted on Azure server with a non 80 port

I have an Azure Ubuntu VM server with multiple websites. Say website A = 81, website B = 82. These endpoints are exposed and I can access the website externally using <ip address>:<port>. I ...
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0answers
22 views

LTSP Thin client “Fatal! Could not read from the boot medium”

I have searched among the already asked questions but none of them seems to work for me. I am currently running VirtualBox on my Windows-7 host PC (64-bit OS, i5-2400 CPU, 6 GB RAM). I have a ...
0
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1answer
71 views

Backup kvm Virtual Machine with lvm

I'm new to virtualization and have been searching for a while for a flexible disk format for setting up a kvm VM, after some reading i decided to go with lvm. And did set up the disk and the ...
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0answers
41 views

Failed to create OpenNebula VM

I'm trying to instantiate a virtual machine from the OpenNebula sunstone. The frontend is a CentOS machine with the sandbox installed. The two hosts are ubuntu 12.04 32 bits machines, and they can all ...
0
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1answer
58 views

Multiple DSLs connected to single HP server

networking noob here! Got a pretty specific question. Is it possible to plug 10 cat5 (network) cables that come from 10 different DSL modems to an HP server so I have 10 different broadband lines ...
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2answers
34 views

Creating Virtual Proxy Server

I know this is not this kind of forum, but I can't find anything in google that really answers my question. Is there possible to create a Proxy server running in a Virtual Machine using only 1 ...
0
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1answer
68 views

What hypervisors support vGPU? [closed]

Does anyone know if any open source hypervisor supports vGPUs? It looks like XenServer and vSphere are the only two hypervisors that support virtual graphics cards (true vGPU, not passthrough or ...
0
votes
1answer
133 views

Creating new Virtual Machine in Microsoft Hyper-V server 2012 r2

I am new to Windows Hyper-V server 2012 r2, trying to create new virtual machine in ther Hyper-V server. Try to follow ...
1
vote
1answer
54 views

How was DC restored in windows 2008 before windows 2012 VM generation ID?

Windows server 2012 got this new thing called "VM generation ID" which protects DC restoration from snapshots so it doesn't impair the system (getting new invocation ID and requesting new RID pool ...
1
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1answer
25 views

pfsense with 4 WAN IP and outgoing NAT

I have a pfsense with a single wan ip, i want to assign multiple wan ip's. The pfsense machine is located on a vm machine with the other servers i wish to NAT forward. I want to give each server a wan ...
0
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2answers
76 views

Is the MAC address of the physical host used in a virtual environment?

In an environment with virtual servers, is the MAC address used to communicate, the MAC address of the physical host, or the MAC address of the virtual adapters. If it's is the virtual MAC address how ...
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3answers
59 views

What's the advisable maximum CPU usage?

I have a VM with 8 core of processing, and occasionally the CPU usage is going to around 75 ~ 100%. I read in some places, that when the CPU usage is with more than 75% is it a trouble, and can ...
-1
votes
1answer
33 views

How to use Server2012 as DHCP and on the same time Ubuntu Server as Gateway for the client Machines? [closed]

I want to use Windows Server 2012 R2 as a DHCP for the client computers with Ubuntu server acting as gateway to the internet. I am using VMWare WorkStation. Both machines are installed on it. Windows ...
8
votes
2answers
144 views

Hot-remove memory in a Linux virtual machine

Linux supports hot-adding memory when running as a VM guest, in VMware for example. (Sometimes you need to manually inform the guest OS.) Is there a safe way to do the inverse operation — reducing ...