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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Recommended Hardware for a school lab LTSP [duplicate]

currently I'm working on a project for a elementary school's computer room/lab. They have a lot of old computers (AMD Athlon CPU f.e.) with WinXP. The teachers are afraid of using that insecure ...
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10 views

How to Monitor all virtual host Web traffic in Real-Time in one console

I want to monitor web traffic from each domain I have installed on my dedicated server. All my domains were added in apache as virtual host. I need each domain Google bot hits only basis, and human ...
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0answers
13 views

Export or Convert Hyper-V VM to OVA/OVF

I can't find (Google) any documentation on how to export or convert hyper-v VMs to OVA or OVF. The hyper-visor is Windows Server 2012 R2 Standard. The results from Google only point to System Center ...
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2answers
21 views

How to make a VMware machine to use the proxy of the host?

I am running shadowsocks over my host computer (which is Windows). And I am running a VMware virtual machine with Ubuntu Linux on that. How to set up this Vware/Ubuntu to use the Shadowsocks of my ...
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0answers
8 views

Windows 10 Activation and VMs [duplicate]

I've just bought a laptop that came with Windows 10 preinstalled. I'd like to reformat it, install Ubuntu, and then reuse the Windows 10 license in a virtual machine. But it seems that you can't ...
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1answer
24 views

Setting up a virtual server with multiple monitors

We have a client who currently has a server running on old hardware. They want to move this server to another machine and virtualize it to make it more portable in the future (AFAIK, they use a non-...
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1answer
19 views

How to mount a block device with no partition table in Windows

The filesystem starts from sector 0. I have an encrypted container on the host and want to pass decrypted media to the windows guest as a single physical device that is intended to be mounted on guest....
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0answers
36 views

How to install Windows on a OpenVZ SolusVM VM

So I have just installed SolusVM (Master) on a VPS and added a dedicated server as a node to the master. And have also added an IP block to the panel. I have successfully created a CentOS VM through ...
0
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1answer
26 views

vcenter isn't seeing open vm tools

Centos 7 DVD is packaged with open vm tools. But this is what I see in vCenter: VMware actually recommends running Open VM tools. When I tried to install vmware tools I got this message: open-vm-...
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1answer
18 views

Upgrading Debian Squeeze with OpenVZ to Debian 7/8 with LXC

I have a few servers which are running Debian 6 (Squeeze) which uses OpenVZ to run containers. The containers are some Debian 6 and some Debian 7. Squeeze was the last version of Debian to support ...
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0answers
15 views

No network on XenServer VMs

I'm trying to set up a CloudStack private cloud with advanced networking and I seem to have navigated most of the hard part. The problem now is my system VMs are not able to access the public gateway ...
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1answer
17 views

virsh command that displays the cpu and memory consumption?

I want to know if there is a command virsh to display the cpu and memory consumption of each machine virtual. I created the virtual machine using KVM in ubuntu system.
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55 views

Assign 2 IP addresses to one virtual machine

I would like to assign 2 IP addresses to one virtual machine but cannot make it working. I have IP MAC 151.180.39.138 02:aa:cc:73:b1:39 78.132.120.30 02:cc:aa:79:fb:e7 /etc/...
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0answers
22 views

KVM CPU features security risk or performance benefit

I need to run an untrusted VM with libvirt and KVM and need decent performance. When I run virsh capabilities to see what my CPU can provide, I get: <cpu> <arch>x86_64</arch&...
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0answers
15 views

Having different two different public IPs or Xen guests

I'm using XenServer and CentOS. I have successfully configured two Windows Server guests and they both work properly. On the host machine, I have xenbr0, xenbr0:0 and xenbr0:1 (for two different IP ...
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0answers
3 views

Virtualbox VM bridged NIC to host Loopback-NIC serve Internet [migrated]

I have a Virtualbox VM with a NIC in bridge mode to the host machine Loopback Interface... I have in the VM the IP 192.168.0.12/24 I Have in the host machine 192.168.0.11/24 (assigned to Loopback ...
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0answers
15 views

QEMU image format

I have an image with .qemu format. I looked here to see QEMU supported formats but there is no .qemu. Is.qemu equal to raw? Thanks
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0answers
12 views

slow shared folder file append operations (VBox/VMware/CIFS)

The next problem occurs in both Vbox and VMplayer. I am having windows 10 as HOST, and debian 8 as guest. I am developing in both PHP and nodeJs, my plan is to use HOST windows 10 as development ...
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0answers
19 views

LXC (proxmox) JBD high (100%) IO utilisation

We have a dedicated server running a number of smaller guest VMs containing for example, HTTP server, MySQL and some real-time applications. However we find that JBD inside the guests are often ...
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2answers
45 views

How to balance elasticsearch (java) on a very powerful machine?

On a 16 core XEON class, 128GB RAM RHEL server I want to deploy elasticsearch. What is preferable performance-wise? Have a huge elasticsearch process to use all resources on the native host? Break ...
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1answer
89 views

Provision a virtual server within CentOS 7? [closed]

This may be a really silly question, but I currently have a dedicated server and I have an incredible amount of redundant hardware. I'd like to be able to provision virtual servers running various ...
0
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0answers
24 views

Hypervisor vs Virtual Machine Monitor

What is the difference between a Hypervisor and a Virtual Machine Monitor? Mostly it is referred as the same but today I started to read a book in which they are different things. After about two ...
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0answers
26 views

Virsh cannot connect to Xen server

I have installed the latest version of Xen server 6.5. Now I want to connect to it with virsh (libvirt-bin). When I do this I get the error error:end of file while reading data: sh:nc:command not ...
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0answers
28 views

Is there a way to clone/template linux VMs on Hyper-V

I've seen how you can do it with System Center but we don't have a System Center license and there is no plans to get one. I guess I could install a trial for the 60 days just for this purpose but I ...
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0answers
14 views

Virtual Machine to Virtual Machine Speed on Same Host and Network

I have two virtual machines on the same esxi host, the same network and same virtual switch. I am testing bandwidth between the two servers but I can't seem to pull more than 900Mbits. I am using ...
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2answers
45 views

I need to set up a sftp server, that could use different keys, and use different directories for the same login, depending on the ip used

I got a problem, that I cannot solve myself. I tried to google it, but no satiscactory solution that i could find. I have a server that is available with let's say 3 different IP addresses (A,B,C), ...
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0answers
22 views

What is the network connection speed between two containers communicating via a virtual bridge running on the same host?

Does a virtual bridge (added to /etc/network/interfaces) limit the transfer speed of data from the memory of one lxc/docker container to another? For example does the memory throughput drop to that ...
2
votes
1answer
23 views

libvirt kvm qemu virtual machine - hard code domain-id?

Is there a way to hard code the domain-id of a virtual machine kvm guest? I tried adding an id attribute to the XML configuration via virsh edit name And I also tried to edit the XML directly ...
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0answers
47 views

Can't use unallocated space on a Win 2k8 R2 VM

I'm hoping someone can help me with this because after 2 days of googling I've come up with nothing. I have a file server that I have converted from a physical to a virtual on an ESXi 6 host. I have ...
4
votes
3answers
60 views

VMWARE Guest Storage VMDK vs RDM-V vs RMD-P

When is it best to use VMDK, RDM-V or RDM-P? I have always defaulted to using the standard VMFS5 Datastores with VMDK files for each server. However I typically use RDM-V when I need an excessive ...
0
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0answers
43 views

Qemu kvm necessary kernel and qemu version on jessie host and guests with Skylake

I am running a dedicated server with Debian jessie and the current backported linux-image-amd64/linux-headers-amd64 (currently 4.5), because the server has a Skylake CPU. On the dedicated root, I'm ...
1
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0answers
30 views

What's the impact of a high cpu steal time on XenServer's dom0?

From what I understand, cpu steal time is the CPU time that the VM kernel requested, but was denied by the hypervisor because it was serving another VM. From my experience, on a XenServer that has ...
0
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0answers
50 views

MAAS fails to commision on 16.04

After upgrading the images on mass I am not able to commision any system. the logs go to Setting up libipmiconsole2 (1.4.11-1ubuntu1) ... Setting up libipmidetect0 (1.4.11-1ubuntu1) ... Setting up ...
0
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1answer
56 views

Virtual NICs and Host only adapter in KVM

How can i create virtual network adapter like a physical eth0 in KVM? As I lack physical NICs. Also I need a Host-only adapter just like in VMware to connect two VMs in KVM. What is possible solution ...
0
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2answers
61 views

Is there any way to fake SAN in VMs

I need to set up an SQL Server cluster for very low transaction volume functional testing. That requires a Windows Failover cluster and according to TechNet and Michael Otey that requires a SAN. ...
2
votes
2answers
43 views

Is it possible to encrypt a virtual machine or container so the host is not able to read any of its data? [duplicate]

I'm wondering whether it would be theoretically possible for a cloud hosting provider to run an application for a customer where the customer doesn't trust the hosting provider with the data in the ...
0
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0answers
31 views

virtualbox networking - difference between 10.0.2.2 and 10.0.2.15

I setting up a vm-based appliance on VirtualBox (using Chef) and, while I have figured out my networking out by trial and error, I'd like to understand better what's going on. Basically, I have 3 ...
0
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0answers
15 views

Network issue with VMs mixing dedicated public IP and port forwarding

I already have a virtual machine with its own public ip address and I would like to set up a new VM using port forwarding from the host. I have two public addresses: X.X.X.146 for the host Y.Y.Y.99 ...
1
vote
1answer
13 views

App-V processes in the server task manager

I work for a vendor company that provides services for metering application usage in datacenter environments. We were recently asked whether we support App-V metering. I have a question about App-V ...
1
vote
1answer
136 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.
1
vote
3answers
89 views

virt-manager: Partioning the available memory

I have a hypervisor which uses kvm and virt-manager to handle the virtual machines. The hypervisor has 6GByte of memory. If I add a new virtual machine I don't know how much memory is still free. ...
0
votes
1answer
16 views

KVM Guest not powering back on

I have recently setup a homelab with a KVM hypervisor: qemu-kvm-1.5.3-105.el7_2.3.x86_64 libvirt-1.2.17-13.el7_2.4.x86_64 I have almost everything working the way I want it (networking/vnc), but ...
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votes
1answer
38 views

Can I understand if two Windows VM are running on the same phisical machine?

As per title, I would like to know if is possible that given two Windows VM to establish if they are running on the same phisical machine or not.
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2answers
28 views

Docker: how to partion my harddrive

I want to create partitions for my docker server. It will only host stateful application, data are stored in /srv/company/appname. I have two hard drive : 20GB 2TB. What is the best way to ...
0
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0answers
67 views

Hyper-V Windows Server 2012 R2 “Cannot create virtual switch” General Access Denied Error 0x8007005

After an ip change on the network adapter connected to a previous hyper-v switch we ran into some issues so I uninstalled the existing virtual switch and attempted to add a new external. I get the ...
13
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3answers
719 views

Allocating Non-Standard Memory Quantities to Virtual Machines [duplicate]

When setting up virtual machines on the various host systems I've used, be they Hyper-V, VMware or KVM, I have always allocated RAM in amounts that match physical memory configurations - e.g. to add ...
0
votes
1answer
54 views

Passing SAN Storage to Virtual Machine in active/passive HA Cluster

I need to attach a fibre channel SAN disk to one virtual machine that resides on an active/passive cluster (pacemaker, corosync). As it is the backup storage, corruption has to be strongly avoided. ...
1
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0answers
106 views

Export OVF fails with “File not found” error

Good morning/afternoon/evening all: I am having an issue with a single Virtual machine when it comes to exporting an OVA/OVF. I recieve a "File not found" error that appears to be pointing in the ...
1
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1answer
42 views

Performance impact enabling intel vt-x

I have a rather unusual question: What is the performance impact when you enable vt-x and you don't need it? I ask this because all of the new servers I receive have this enabled by default in the ...