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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-6
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1answer
49 views

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

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 physical machine or not. Edit: I tough I provided all the needed details. ...
3
votes
3answers
2k views

How do I Clear a Warning about Best Practices for Running a Domain Controller on a Virtual Machine?

I have a Windows Server 2008 Domain Controller running on a VMware virtual machine. There is a Best Practices Analyzer warning appearing in Server Manager with the following message: "The domain ...
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 ...
0
votes
2answers
1k views

internal error: unable to execute QEMU command 'cont': Resetting the Virtual Machine is required

I try to install a kvm img in my vps, but after i install it, it show root@wz:~# virsh list Id Name State ---------------------------------------------------- 12 ...
0
votes
1answer
2k 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
1answer
20 views

Hyper-V: Virtual machine connected to external network has no access to it

Setup: Windows Server 2016 Tech. Preview with enabled nested virtualization (Server 1) runs a VM with another Windows Server 2016 (Server 2) which in turn runs a Windows 10 VM (Workstation). On ...
0
votes
0answers
24 views

Best way to avoid server outage for gaming company [on hold]

I recently moved to a company that provides gaming solutions for Bingo Halls across the globe. We have handheld game devices that run our gaming apps that connect to Windows Servers (2008). Each bingo ...
1
vote
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 ...
1
vote
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 ...
0
votes
0answers
4 views

VMWare Shared Storage not Syncing File Changes [migrated]

So, I am experimenting with a couple VM's. Both are fresh Ubuntu 16.04 installs, no updates, no vmware tools. Both are able to read and write to this SharedTest.vmdk, while both are running. What I ...
0
votes
0answers
14 views

Direct HTTP packets for an specific domain to a guest virtual machine [duplicate]

I got a situation of a (Windows server 2012 as host) and a (CentOS 6 as guest) using Virtual box. I have 1 Static IP Address assigned to the host. the host is hosting multiple sites using different ...
15
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 ...
0
votes
1answer
22 views

How does backup deal with existing snapshots in snapshot based backup

I have a question regarding backups and VM's that contain snapshots. If i have a VM running in vmware with 2 snapshots and a snapshot based backup runs overnight, will it delete all of my snapshots or ...
2
votes
3answers
103 views

KVM-Host lost connection to Storage

I would really appreciate some advice on how to fix this. I have a Debian KVM-Host with 9 Debian VMS running on it. The virtual machines are running on my little Storage via iSCSI. Now, my switch ...
2
votes
3answers
3k views

Cannot connect to Openstack Instance via horizon, but SSH works?

I've got an OpenStack deployment running inside a VM for testing purposes. My setup is as follows: Host Ubuntu x64 with Virtualbox -> Guest Ubuntu x64 with OpenStack -> Ubuntu X64 Server Test ...
14
votes
4answers
3k views

Hyper-V Processor Limitations

We have recently purchased a server which is running Hyper-V 2008 R2 bare metal. The server has two quad-core Intel Xeon processors with hyperthreading, so if I'm understanding correctly this gives us ...
1
vote
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 ...
1
vote
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 ...
2
votes
2answers
5k views

Method of deploying a VB6 app to a Windows server 2012 RDS server

My environment currently has a Windows 2003 server running terminal services. That server has the visual studio 6 IDE installed. It also is responsible for running a very old ( and poorly built ) VB6 ...
-1
votes
2answers
52 views

Unable to connect two PC's in a private Network [closed]

I have the following setting: VM1 (VMNET10 - private, without any other connection to the host system or the internet) VM2 (VMNET10 - same here ;)) Now i want to connect each other. I can ping ...
1
vote
2answers
52 views

Replacing failed hardware in a hyper-converged cluster node [closed]

Is it possible to replace failed physical components (such as disk, RAM, or power supply) in a hyper-converged node (such as VXrail or Nutanix) without taking the node offline?
5
votes
2answers
284 views

What is the difference between containers and virtual machines?

I want to comprehend all that differ a container from a virtual machine. A filesystem with all operational system can be observed for both of these virtualization methods. But in a Docker container, e....
1
vote
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:~$ ...
0
votes
1answer
25 views

postfix user unknown in virtual alias table [duplicate]

first of all - i am still on a beginner level. As the Topic say i have problems with my mailserver (postfix 2.11.3) on Debian Jessie. It is a VPS with two domains and each has his own IP. When i ...
0
votes
1answer
41 views

Postfix Virtual Domain - mail is send by second server [duplicate]

i setup postfix on a VPS with two domains (each one with own ip) domain1 - 194.xxx.xxx.1 domain2 - 194.xxx.xxx.2 when i send a mail via domain2 - i am getting dmarc reports that the mail uses the ...
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 properly....
3
votes
1answer
3k 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 ...
1
vote
0answers
23 views

How to limit the block usage on a Thin Provisioned VMs ( VMware)

This question is similar to Best practices for thin-provisioning Linux servers (on VMware) However my question is a touch different. We have P2Ved quite a few servers (win/linux) and we needed to ...
0
votes
0answers
26 views

Server 2008 R2 Hyper-V VM blinking curser

After installing MS patches, my VM on a Server 2008 R2 Hyper-V boots with a blinking curser. I suspect to have issues with the boot and need to run a boot repair. However, I am unable to boot from the ...
0
votes
1answer
24 views

Xrandr error when accessing Debian VM over VNC

I have Debian 8 with XFCE running on vmware virtualization. If I work on the console of vSphere no problems. If I connect over VNC (thighVNC) using "my-hostname:1" I have some problems (I guess the ...
0
votes
0answers
10 views

Create sparse VM image on OSX

I have a VirtualBox image (created by Vagrant) that I would like to convert into a sparse VMDK. libguestfs (virt-sparsify) doesn't support OSX Tried running libguestfs in Docker using libguestfs-...
2
votes
0answers
24 views

Rebuilding VHD RAID array

We have a Dell PowerEdge R420 with a PERC H710 mini RAID controller card. The server has six physical disks split over two arrays; one RAID-1 array for the OS and one RAID-10 array for the data. This ...
2
votes
2answers
1k 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 ...
3
votes
2answers
254 views

Should I split up an application in multiple, linked, Docker containers or combine them into one?

Background I'm currently working on building an application which I want to deploy to Docker containers. The containers will run on a server of mine. I want to have the ability to run other ...
0
votes
1answer
27 views

internet connection sharing Hyper-v virtual machine switch

I am running hyper-v. I created a virtual external switch and configured it to be shared with the host and the VMs. However the VMs obtain dhcp information just like the host does: same gateway, same ...
9
votes
2answers
34k views

Running Mac OS X on Hyper-V

I have my workstation setup with a Windows Server 2008 running Hyper-V. Now I really want to install OS X for testing purposes. Have anyone had any success running Mac OS X in an Hyper-V environment? ...
-1
votes
1answer
58 views

Kernel panic - not syncing: Attempted to kill init ( using qemu for a Rasbian ARM image) [closed]

I am using qemu 2.6.0 on my ubuntu 14.04 x86_64 PC. I want to emulate rasbian -- A Linux destro based on ARM Debian for Raspberry Pi. Here's the settings when using qemu /usr/local/src/qemu-2.6.0/...
1
vote
1answer
25 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 ...
0
votes
2answers
551 views

VirtualBox: Get Guest UUID from within the Guest computer

Is there any way to get a Guest VM's UUID from within the Guest VM itself? From the Host I can do vboxmanage list vms to get a list of all vm names and their user ids. From the Guest, even with ...
2
votes
0answers
15 views

Why is an unassigned adapter showing up in vSwitch “Teaming and failover” order?

On two out of three ESXi 6 hosts there is an unused adapter showing up in the Teaming and failover section of a vSwitch even though that adapter is not assigned to the vSwitch (see screenshots below). ...
-1
votes
0answers
18 views

Run same virtual machine twice simultaneously from the same base snapshot

I would like to have a base snapshot and then launch several virtual machines from it simultaneously. These machines have a short lifetime and then shutdown, there is no need to save the changed to ...
1
vote
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/...
0
votes
1answer
1k views

VMware Restart — Blank Screen

I am running VMWare Server on a Windows 2K8 server. I was wondering what the default behavior is for a restart or shutdown initiated from within the virtual host? Currently, when I restart the virtual ...
0
votes
0answers
17 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 ...
0
votes
0answers
8 views

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 ...
1
vote
0answers
54 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 ...
8
votes
2answers
16k views

Changing boot device for a QEMU-KVM virtual machine

I am trying to change the boot device for a VM. I go to the VM's XML file in /etc/libvirt/qemu and set <boot dev='cdrom' />. Still, it attempts to boot from the harddrive instead of the cdrom. ...
4
votes
1answer
2k views

How to get virtualized SR-IOV Infiniband interface UP?

I've spent several days on this now and I've managed to get SR-IOV working with the Mellanox Infiniband card using the latest firmware. The Virtual Functions appear in Dom0 as 06:00.1 Network ...
0
votes
2answers
40 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 ...
0
votes
2answers
2k views

Guest networking not working on Debian Jessie Host server KVM with br0 bridged network

GUESTS networking not working at all. In other words guest can not ping host or lan gateway. I have br0 bridge already created, also brctl show that vnet0 was properly added by KVM to br0 on guest ...