Virtualization is a group of software technologies that allow abstraction between layers of a system. This allows separation between the logical layers of the system, providing isolation, flexibility, and/or the ability to run more than one at a time. This differs from most traditional systems where ...

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17
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5answers
32k views

Is there a way to run virt-manager on Windows?

We've been using KVM for almost a year strictly on CentOS 5.x as the KVM host, with Fedora and Ubuntu workstations accessing the KVM host and its guests using virt-manager, virt-viewer, and ssh. Is ...
1
vote
2answers
23 views

Virtual hosts instead of separate IPs?

I've been wondering if it's possible to host multiple applications using a single port on one IP address. I'm meaning a similar method to Apache Virtual Hosts where you can assign domains/subdomains ...
1
vote
0answers
16 views

Hyper-V Host Requirements

We are considering consolidating three lightweight physical servers onto one machine using Hyper-V. I've received a quote for an HP ML310e Gen8 with the following specs: 1 Intel Xeon E3-1220V3 ...
2
votes
4answers
7k views

How to Shrink large Hyper-V VM

Using Disk2VHD utility I converted my bare-metal OS into Hyper-V VHD - http://technet.microsoft.com/en-us/sysinternals/ee656415.aspx And I could obtain a huge 190GB VHD file. Apart from performance ...
2
votes
1answer
929 views

Nginx Virtual host 403 Forbidden

I have just brought a domain name (example.com) and have setup a URL frame redirection to my server's IP XXX.XXX.XXX.XXX, however I am getting a 403 forbidden error. I can access pages fine via the ...
0
votes
0answers
12 views

Suddenly Azure VM's Disk is full [on hold]

I have a Windows Server VM on Azure that we use for demo purposes only and we don't have any data stored on it. only the app related files which doesn't exceed 1GB. Suddenly, I found the OS disk is ...
1
vote
1answer
3k views

How do I tunnel an HTTPS proxy through a virtual machine (VMWare)

I have a personal setup at home using VMWare Workstation. I also have a set of Virtual Private Machines that run Squid, and therefore provide me HTTPS proxy tunnels. Using Proxifier, I can tunnel all ...
-3
votes
1answer
18 views

VMWare Player Version 6.0.4 Host needs to go down [on hold]

First off, I know my question is stupid but I thought I'd just go for it, before my client goes bananas. I have a virtual Windows 2000 running in a VM within VMWare Player, and I have to power down ...
2
votes
1answer
2k views

tap interfaces always disabled in linux bridge

I have a physical interface eth0, and I want to create two virtual interfaces and bridge them with eth0. For this purpose I do: #Create the virtual interfaces tunctl -t tap0 tunctl -t tap1 ifconfig ...
4
votes
1answer
157 views

ESXi 5.5 CPU Sanity Check

In the BIOS of my server I have 2 X 2.26 quad cores, however in VMware I only see 2 cores per CPU ? Surely this isn't right? Processor Cores and Processor sockets should show as below: ...
1
vote
0answers
23 views

How to configure HW, OS, network for virtualization with VMDq and SR-IOV features [on hold]

I have: SUN X4100 M2 Intel Ethernet Adapter E1G42ET (VMDq and SR-IOV supported) Linux Ubuntu 14.04 Server (host machine) May setup 15 KVM as hypervisor I want some virtual guest machines (linux) ...
0
votes
1answer
18 views

Config differents external proxy to every VM with iptables

I have a virtualization server with one IP and 5 VM. To get internet access and ssh access in every VM I do this in -------------/etc/network/interfaces------- auto vmbr2 iface vmbr2 inet static ...
0
votes
0answers
19 views

On debian, removing one virtual interface eth0:0 removes other virtual interfaces. Why?

Tried searching for the answer a lot of times. I have two virtual interfaces eth0:0(10.0.0.1) and eth0:1(10.0.0.2). I am trying to remove only eth0:0 interface. If I execute the command "ifconfig ...
0
votes
1answer
25 views

Lean virtualization solutions [on hold]

I am looking for a lightweight way to run a linux kernel guest under an OSX host. I need only to be able to boot a very minimal linux kernel, start a single process under it, and communicate with that ...
4
votes
3answers
4k views

What happens when a mail server goes down

I will deploy a web server, but I don't have much experience. I would like to know what happens with mail that is send when the server is offline (restarting, maintenance, etc.). When an internal ...
0
votes
1answer
1k views

lighttpd virtual hosting configuration

I need help setting up virtual hosting in lighttpd. i have the lighttpd default webpage in /var/www/lighttpd dir and i have created other dirs for my other websites /var/www/web1.com/public_html and ...
2
votes
4answers
8k views

VMWare 6.5 virtual machine fails to resume after suspend

I am having a problem to resume a VMWare virtual machine from the suspend mode. It presents me a dialog stating an error in some source file and suggesting to send the dump to VMWare support. G*ing on ...
11
votes
4answers
1k views

What happens when a physical machine fails in a virtual environment?

I'm getting started with virtualization so bear with me. In virtual environments applications run in a hypervisor's layer. So a single physical machine could have many virtual machines on it running ...
0
votes
2answers
1k views

setting CPU cache size and model for KVM guest

Is there any possibility to create a custom CPU model for KVM Linux guests, or at least to modify parameters such as cache size and model name? I know I can set CPU features, topology and pinning and ...
0
votes
2answers
413 views

How to create a Windows 2008 VM for uploading to Azure?

I have an existing Windows 2008 R2 (64 bit) machine chugging along. I want to create a VM image of this physical machine so that I can upload it to Azure for scalability purposes. I've found ways to ...
0
votes
0answers
8 views

Error starting a VirtualBox instance inside an Ubuntu VirtualBox instance [migrated]

I am trying a Microservices demo that uses Vagrant to start up a VM and deploys software to the started machine. Because the demo is set up for Linux and I am using Windows (8.1 Pro), I am running ...
1
vote
0answers
33 views

ESXi 5.5: more than one hour to power up a Win2K VM

Around one year ago I installed an ESXi 5.5 to virtualize an old physical Windows 2000 server that, unfortunately, cannot be easily upgraded/migrated/replaced. Main ESXi datastore was created on top ...
1
vote
1answer
1k views

DCOM Authentication Fails to use Kerberos, Falls back to NTLM

I have a webservice that is written in Classic ASP. In this web service it attempts to create a VirtualServer.Application object on another server via DCOM. This fails with Permission Denied. However ...
0
votes
0answers
20 views

linux virtualization + Qmenu [closed]

Can someone explain what is actually the Qmenu (http://wiki.qemu.org/Main_Page) I need to install on my linux machine ( red-hat )different 4 virtual machines by OpenVZ so How the Qmenu can bring ...
2
votes
2answers
981 views

Xen Remus setup

Currently, I'm running the IT for a small organization, and we just purchased a new server to replace our aging Dell poweredge. As the Dell isn't so bad as to be junk, I was hoping to set up Xen on ...
0
votes
1answer
1k views

Xen machine with a DomU router/firewall on a single NIC machine

I've got a machine with a single NIC. I'd like to set it it up like thus: Dom0 listening on 192.168.x.1 and doing nothing but being Dom0 DomU on 192.168.x.2 and external ip assigned by dhcp doing ...
1
vote
2answers
1k views

VMWare and Turnkey Linux appliance can't access network

I have a VMWare ESXi cluster running many Windows and Linux VMs perfectly. I have installed the Turnkey Linux Redmine appliance, and am having a lot of trouble getting the networking to work ...
14
votes
7answers
3k views

recommendations for efficient offsite remote backup solution of vm's

I am looking for recommendations for backing up my current 6 vm's(and soon to grow to up to 20). Currently I am running a two node proxmox cluster(which is a debian base using kvm for virtualization ...
1
vote
1answer
34 views

Best options for KVM/qemu/libvirt VM migrations without shared storage

My team has recently been tasked with improving the virtualization infrastructure at the company and one thing we're looking into doing is speeding up migrations. We use local storage only on all VM ...
0
votes
1answer
23 views

Use graphical DomU (X11 for Linux, regular UI for Windows) from Dom0 without any GUI on Dom0

I am creating a Xen (para)virtualization setup, with two DomU's: a Windows 10 client install, on HVM, and an Linux client install with X11, on PV. Dom0 is a non-graphical Debian install. So far I have ...
4
votes
3answers
2k views

VSFTPD does not allow upload with virtual users

I am attempting to setup VSFTPD with virtual users on a server running Ubuntu 12.04. I have configured the server to allow for virtual users to login, but I am having trouble getting it to allow ...
-1
votes
0answers
14 views

Migrating VMs in VMware Player to VMware Workstation [migrated]

Is there a way to migrate the VMs created in VMware Player to VMware Workstation ? My PC had VMware Player previously on my personal laptop, and I have 3 VMs created. I recently installed VMware ...
1
vote
1answer
1k views

Debian Jessie Qemu KVM GPU Passthrough to Windows Virtual Machine guest Virt-Manager error Bus PCI not found

I'm having problems with Virt-Manager not wanting to boot a VM and giving error: Error starting domain: internal error: process exited while connecting to monitor: char device redirected to ...
4
votes
3answers
8k views

Apache Virtual Host Config www vs non-www, Rewrite or sServerAlias?

We have a central httpd.conf and we include confs for various virtual hosts. Until today, we didn't really have a need for "www.subdomain.site.com" domains, only "subdomain.site.com." Now we do, so I ...
0
votes
2answers
67 views

getting started automating virtualization with powershell on windows [closed]

What are some good books or resources for learning automate virtual PCs on Windows DataCenter? I want to be able to build VPCs with both automated installs and from images, preferably via powershell. ...
0
votes
1answer
39 views

What benefit is there to using Vagrant for AWS resource management when using Ansible for provisioning?

I understand that Vagrant is a tool to create and manage virtual machines; and that Ansible is a tool to configure one's machines (virtual or otherwise). However, Ansible's AWS modules are capable of ...
0
votes
3answers
74 views

Booting hypervisor and network stacks using PXE Server

I am trying configure server using PXE boot. I successfully installed ESXi hypervisor using PXE and would like to know if there is a way by which I can specify Virtual machines at the time of PXE ...
0
votes
1answer
35 views

Salt minions keep losing connection to master

I'm testing Salt. I have a simple test setup of 3 VirtualBox VM's -- with salt-master running on one of the machines and salt-minions running on the other 2 VM's. I can start either of the salt ...
-1
votes
1answer
79 views

VMware ESXi 6.0 DirectPath I/O PCIe Device Not Working

I'm attempting to attach a NIC to a specific VM on my basic ESXi 6.0 setup. DirectPath I/O should allow me to do this, and the machine I'm running ESXi on does support VT-d (Dell Optiplex 990 with an ...
2
votes
1answer
1k views

virt-install kept on adding --no-reboot - even though I don't want it to

I have a bit of a problem getting my guests to reboot after the OS installation using virt-install. For whatever reason, virt-install insists on inserting "--no-reboot" when you create a VM: ...
2
votes
3answers
4k views

Cannot change PostgreSQL port

I run Postgresql 8.4 as a service on a CentOS 6.2 server. I set port = 21444 and listen_addresses = '*' in /var/lib/pgsql/data/postgresql.conf and I changed 5432 to 21444 in postmaster.opts and ...
-1
votes
0answers
18 views

oVirt web interface not loading after host setup?

So I'm trying to install oVirt on my Centos 6.7 machine. I completed installing ovirt-engine but when I try to install Hosts from ovirt web interface, the web page stops loading after a while. ...
5
votes
1answer
3k views

Connecting to other instances of Hyper-V Manager in domain

I have a test environment that I host from my computer. I have configured an external switch so that it can be accessed by others. Windows 8 Enterprise and Hyper-V Manager Version: 6.2.9200.16384 If ...
0
votes
1answer
15 views

Application Virtualization Risk Through WAN / Internet

I was weighing pros and cons about the new mission critical system that through application virtualization, will allow my colleagues from 3 different countries to access it. Here are some background ...
0
votes
1answer
1k views

Error while creating VM using virt-manager on Xen

After a great struggle I got my XEN installed now I am using virt-manager and trying to create a VM. Since my H/W doesnt support full Virtualization using the Para Virtualization installation over ...
0
votes
0answers
10 views

KVM Error While Deploying Existing Image

I have KVM running with 2 VM's. I tried backing up one of the images by copying it and then deploying using virtual machine manager using that existing image, that fired up fine. Now the second backup ...
0
votes
0answers
24 views

Finding suitable workload for VM performance evaluation

I'd like to say I'm totally newbie in this topic. I'm up to do an experiment with main target of VM performance evaluation. I have three physical machines and running hypervisors on top of them. Each ...
0
votes
1answer
105 views

Is a single instance VM with a SLA possible in Azure with 3rd party software?

I understand that single instance VMs aren't eligible for an SLA in Azure. For the SMB customers who have important applications that weren't built well enough (Sage 50 in my case) to allow you to ...
0
votes
0answers
5 views

Force virtual machine to only use VPN connection? [migrated]

Here's what I have: Mac OS X 10.10 - running Virtualbox and acting as an OpenVPN client. This works just fine on the VPN and is intended to be my host machine. There is also WiFi connection on this ...
9
votes
4answers
4k views

How to keep time on resumed KVM guest with libvirt?

On my host I am using libvirt and a KVM guest. When the host is shutting down, libvirt suspends the guest. When the host is starting up, libvirt resumes the guest. The problem is, if the guest is ...