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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669 views

Reserve a USB port in XP Mode

We are running a Windows 7 Professional x64 environment and have some legacy applications that are only suported under Windows XP x86. Most of these run fine, however one of them uses ActiveSync to ...
2
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1answer
2k views

How do I configure a guest VM's static IP address automatically in Citrix XenServer?

To facilitate automation of guest VM provisioning, how do I set (in a script) the IP address on a guest VM's NIC (or NIC's) once a new VM has booted? Is there a way to "inject" netsh commands via the ...
2
votes
1answer
821 views

need some way to convert QCOW2 to OVF or open QCOW2 on WINDOWS

is there a way to convert QCOW2 to OVF? or is there a way to open an QCOW2 on WINDOWS (preferably free/open source)? the problem is that ubuntu's virtual machine manager was used to create the image ...
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vote
1answer
258 views

LXD 2.0 on Debian 8.4

I'm running Debian 8.4 and would like to set-up recently released LXD 2.0. Is this feasible, or should I stick with LXC? It seems all focus is on using LXD with Ubuntu.
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1answer
25 views

lxc 1.1.2 on Debian Squeeze

I am running lxc 0.8.0 inside Debian Squeeze (Linux kernel 3.4.34). Does anyone run lxc 1.1 or newer inside Linux kernel 3.4? As I know, docker require Linux kernel version at least 3.16. What is the ...
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1answer
94 views

Manage Windows Server 2012 and trunk the Hyper-V VM (same physical NIC)

I'm trying to use Hyper-V to deploy a pfSENSE box inside of it. But, the scenario is: 3 VLANs VID: 1000 VID: 2000 VID: 3000 On a physical switch port, I've tagged the Server physical port with ...
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1answer
135 views

Hyper-V host memory requirements. Possible over allocation to guest VMs?

System: PowerEdge R430 Intel Xeon E5-2440 (dual) 32GB RAM Hyper-V 2012 R2 VMs: DC - 8GB RAM APP - 19GB RAM The VM's are not configured for dynamic memory. The client was complaining about ...
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1answer
209 views

Host not responding - vCenter

Few days ago I configured a new vCenter server behind the NAT for my VMware Hosts. Everything is working perfectly on the Management LAN, but the problem is when I'm trying to add a server outside my ...
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1answer
766 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 ...
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1answer
307 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 ...
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1answer
575 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 ...
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1answer
24 views

How to prevent openvz container from adding another ip address?

How to prevent openvz container from adding another ip address ? I'm using VETH Container. I used this command to configure the network : vzctl set xxx --save --netif_add ethx,,,FE:FF:FF:FF:FF:FF
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1answer
462 views

How to assign dedicated vCPUs to specific VM on Proxmox (KVM) or what system could do that?

I'm posting this here, because what I've found about the topic is either outdated, incomplete or not suitable for various reasons. I have wanted for a long time to learn how to map specific vCPUs to ...
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1answer
1k views

VPN SSTP windows client can not ping or connect to VPN server but it can talk to every other PC on the local LAN that VPN server is on

So I have an SSTP (with native Windows client) working fine in a sense. My windows client's local IP is 192.168.10.11 , so its local network is: 192.168.10.x The Remote VPN server is behind a router ...
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1answer
292 views

Create a local cluster with Vagrant/CoreOS/Docker

I'm trying to create a local environment for testing purpose composed of: a Vagrant CoreOS Cluster (3 nodes) a Docker container launched with an Nginx image loaded, launched on one node I've ...
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1answer
3k views

How to configure VXLAN over linux bridge?

I am using Ubuntu 14.04 which support VXLAN configuration. Currently I can add a VXLAN interface such that: vagrant@ubuntu:~$ sudo ip link add vxlan1 type vxlan id 1 group 239.1.1.2 vagrant@ubuntu:~$ ...
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1answer
612 views

Unable to ping between ESXi host and Netapp storage on the same switch

I am unable to ping between ESXi host and Netapp controller that are both connected on the same switch and configured for private IP addresses. Yet I CAN ping between 2 Esxi hosts and between 2 ...
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1answer
2k 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 ...
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1answer
2k 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 /dev/pts/...
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1answer
61 views

Windows DHCP MAC-Range to Scope allocation

I wonder if there is any options to map a specific Range of MAC addresses to a specific DHCP address scope. The thing is, I want a specific scope for address allocation to bridged Virtual Machines (...
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1answer
123 views

Convert manual network commands into networking scripts

On a dedicated server with an hypervisor as host and Fedora 20 as guest, I successfully used the following commands in the guest VM to enable network with a IP failover: ip route add <gateway>/...
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1answer
283 views

Apache2 virtual host redirection issue on Chrome

I am having an extremely bizarre issue that seems only present on Chrome, IE and Firefox are fine. I have 2 website being served by 1 IP address, I have 2 identical files in sites-available named ...
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1answer
289 views

Virtual networking, Routed network

I have installed a centos 6.5. I have installed a host hypervisor, libvirt (kvm-qemu) managed with virt-manager I have installed two VMs (with kvm), centos 6.5 each one, too. e.g. centos65_1 and ...
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1answer
134 views

IBM BladeCenter H networking

I'm new to the IBM BladeCenter H, and I'm trying to figure out the networking side of it. I've installed a windows server OS on one of the blades, and am trying to fiddle with it's network setup (...
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1answer
4k views

Can I use XenServer GPU Pass-Through without XenDesktop?

XenServer documentation only covers using GPU Pass-Through ("vGPU") to run XenDesktop's "HDX 3D Pro Graphics." XenServer GPU Pass-Through cannot be used with the XenCenter VNC console and it does not ...
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1answer
574 views

Ping (DUP) with Linux bridges and tap devices

http://imgur.com/qPoy2QJ I have two Linux (Ubuntu 12.04) VM (running on KVM) that networked together using two Linux bridges as shown above. The network interfaces are Linux TAP devices. The problem ...
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1answer
303 views

5-7 second latency between Apache server and MySQL server when website calls on database server

I am currently running a virtualized environment for my web and db server. When I access the web server or the MySQL server individually, they are both fast. I also have websites running on the web ...
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1answer
213 views

(simple) linux HA with vmware vsphere?

I hope my upcoming question is specific enough, and you are able and willing to support :-) We have several openSUSE VMs in an ESX-Cluster (three ESX-Servers) with an attached iSCSI-SAN. All of ...
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1answer
498 views

IPv6 Routing / Subnetting

Recently I have installed Citrix Xen Server 6.2 on a machine. My Provider (Hetzner) gave me the IPv6 Subnet 2a01:4f8:200:xxxx::/64. Followed an article in the providers wiki (1) i got it working and ...
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1answer
567 views

HP ProLiant DL160 Gen5 Virtualization

we want to create some vm's on older server. Its an HP ProLiant DL160 Gen5 with an Xeon 5405. So by the intel specs (http://ark.intel.com/products/33079) the cpu included the VT-x technology. But ...
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1answer
90 views

User-specific alias for virtual machine

Our systems people are working on getting us all up and running on virtual machines. There will be a certain set of machines for each performance level, and we'll be able to upgrade and downgrade as ...
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1answer
1k views

Private networks with SCVMM 2012 SP1 and Hyper-V

In my lab I have two hyper-v host running Windows 2012 server. For lab and test purposes I want to have private networks that are available on both hosts, and where the VMs on those networks are able ...
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1answer
62 views

Change a virtual machine Notes attributes in esxi shell

I have tried to change via ESXi shell the attribute field with the following command: vmx -s attributes=new notes /vmfs/volumes/datastore1/VM/VM.vmx but it doesn't change the attributes and doesn'...
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1answer
255 views

Ordering RPM virtual packages

I have following packages, built by my RPM spec: libevent backend %package -n libfoo-libevent Summary: libevent backend for FOO Provides: libfoo-backend Requires: libevent >= 1.4 libev backend ...
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1answer
121 views

Azure website virtual drive and scaling

My current understanding of Azure for websites is that it is using a virtual drive which allows a website to save files to the file system in the same way a classic server setup would do. The ...
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1answer
515 views

Changing the mac address in a libvirt xml config file breaks network connectivity for the guest

I'm using Xen with libvirt and trying to set it up on a bridged interface. I am able to install an OS and everything works as I would expect. If I save the xml output from "virsh dumpxml guest", edit ...
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1answer
496 views

How can I manually add packages to cobbler repo (RHEL/CENTOS)

So I have an air-gapped network. We primarily use RHEL, sometimes CentOS. I'm building a utility "cloud" that needs to be able to kickstart from bare metal, as well as provision vms and kickstart ...
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1answer
717 views

Ghost “vlan 0” tags added to ethernet frames in CentOS guest under OpenStack

I'm trying to debug an issue involving a KVM virtual machine instance where the instance doesn't respond to network requests when the source is on another physical machine, which is on the same subnet ...
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1answer
972 views

Hardware Virtualization Technology Enabling Issue

I have purchased an Intel i7 3770 and an Asus P8Z77-M Pro; for some Windows Server 2012 testing. In the BIOS I have enabled the "Intel Virtualization Technology", and have several Hyper-V based ...
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1answer
434 views

Apply libvirt nwfilter without editing of XML

Is it possible to apply libvirt's network filter to a KVM guest without manually editing the XML (for use in scripts)? Or is there any easy way of pushing the network filter configuration into ...
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1answer
70 views

EC2 Ubuntu images for local usage

Ubuntu provides virtual images that are used by Amazon EC2. They can be started locally e.g. by running: qemu -fda precise-server-cloudimg-i386-floppy -hda precise-server-cloudimg-i386.img ...
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1answer
689 views

Permanently change hostname of Debian Squeeze virtual server

I have a virtual server running Debian Squeeze. I can change the hostname by running the hostname new.host.name command or by editing /etc/hostname and then running /etc/init.d/hostname.sh, but after ...
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1answer
324 views

Not able to use FTP acount created with pure ftpd

I made the new user using this command pure-pw useradd droa -u 52007 -g 52009 -d /home/droa/public_html But when i connect using ftp , it says that Login authentication failed. Which other ...
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1answer
488 views

Hyper-V Test Bed for Forefront TMG 2010 Networking Issues

I am trying to set up a Server 2008 R2 test bed for a Forefront TMG 2010 deployment and I can't seem to get the networking configured correctly. The set up is as follows: Hyper-V Host has two NICs, ...
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1answer
755 views

KVM: pass-through SATA hot-swap drive?

I have a SATA hot-swap cage in my Linux box. Is it possible to pass-through the SATA disk which is injected in that cage to a KVM guest? I have multiple disks however the SATA port will be always the ...
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1answer
4k 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 ...
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1answer
200 views

Applying the virtual licence for HyperV server

I'm running Windows Server 2008 R2 with HyperV. We have a virtual image dev environment running in the virtual machine, which comes under Microsoft's licensing; one real, and one virtual machine on ...
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1answer
421 views

Windows Server 2008 as Bridge in virtualbox: make another Virtual Machine enter his Domain

I have installed a Windows Server 2008 in Virtualbox(bridge) this one work fantastic! i want to make a virtual machine(virtualbox) which can enter the Domain and access my Server 2008(Datacenter). ...
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1answer
66 views

Does Microsoft Virtual Machine Manager Support Storing VHDs on File Server Share?

I have a Hyper-V server running perfectly fine with the VHDs placed on a separate file server shared folder. Now when I install MS Virtual Machine Manager and add the host machine to VMM, it says "...
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1answer
427 views

virtio /proc/net/dev

we are doing some VM (citrix-xen) / real machine benchmarks at university and ran accross a strange behavior. we used netperf's stream test to meassure the performance between the two machines. both ...