Tagged Questions

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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1
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0answers
24 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 ...
0
votes
1answer
258 views

how to configure linux vm as router which communicate between two subnets

I have 3 virtual machines installed on vmplayer. Out of which I have made two of them as host of two different network. Host1 ip=192.168.1.13 gateway=192.168.1.11 and Host2 ip=192.168.2.14 and ...
0
votes
1answer
146 views

Disable VMware BIOS Legacy Diskette

In the main tab of VMware BIOS setup utility there is an option to disable "Legacy Diskette A" (and B). Which is the option to get this by means of the vmx configuration files? I tried: ...
3
votes
2answers
127 views

same subnet,different VLAN in Virtual machine

I have 2 VLAN,VLAN 100 and 101 but only one subnet i am trying to make this work with virtual machine so that VM will have two IP address in same subnet but will actually be in two VLAN. steps ...
1
vote
4answers
128 views

EC2 instance snapshot

In my early days as KVM admin, when I had to do a backup of a VM image, I followed the next steps: Pause the VM Snapshot LVM volume Resume the VM Copy image Remove LVM snapshot Now I've got some ...
-3
votes
1answer
29 views

Vmware Server2 Last known working kernel version [closed]

I hope there is some vmware expert here who can help me out. I would like to know what is the lastest Linux Kernel version which known to work with Vmware Server 2.0.2. What I using right now is ...
0
votes
1answer
180 views

zeroshell with multiwan on virtualbox

I'm planning to setup Zeroshell as a router gateway for a school network on Virtualbox. The host machine will run Ubuntu server edition. Then I will install Zeroshell as a guest Os with 4 configured ...
0
votes
1answer
64 views

VirtualMachine is not available from bridged interface outside the local network

I'm unable to connect to any service running in my VirtualMachine from Outside my local network. My VM has the following configuration: eth0 - Host Only Network eth1 - Bridged Network (Therefore ...
0
votes
1answer
30k views

CentOS 7 Minimal Install doesn't comes with networks scripts? Which version to use then? [closed]

I'm installing CentOS 7 as virtual machine but I'm having some problems related to network. As image shows I select Minimal Install for later add trough YUM any packages I want as for example: PHP, ...
1
vote
1answer
95 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 ...
0
votes
1answer
138 views

Citrix Xen Server 5.6: Virtual Machines (VM) Deleted or Gone Missing?

In my environment I have a Citrix Xen Server (ver 5.6) with multiple VM's setup in my lab on a local partition mount. I arrived to my lab setup last week to find that my VM's have gone missing. The ...
2
votes
2answers
129 views

Does 'vim-cmd vmsvc/snapshot.create' create a functional backup of the guest?

If I create a snapshot with: 'vim-cmd vmsvc/snapshot.create' I can then transfer the file that creates to another system, or even to another vmware ESXi system. Setting aside the fact that ...
1
vote
1answer
45 views

Win7 VM network is flaky after migrating from Hyper-V 2012 to 2012R2 and upgrading integration software

I'm in the process of upgrading our Windows 2012 Hyper-V hosts to 2012R2. As part of this process, I am migrating existing VMs from the 2012 hosts to hosts that have already been rebuilt. These are ...
0
votes
1answer
63 views

weird bridge issue in KVM

on Centos 6.5 i have a bridge network connected to eth4 and my virtual machine (Centos6.5) running on KVM is also connected to that interface(vnet0) bridge name bridge id STP ...
2
votes
0answers
27 views

Can I convert a physical non-bootable sata volume to a VHD image for mounting in a VM as 2nd volume?

I'm converting physical machines in the office to virtual machines using Disk2vhd, and it doesn't list the second physical hard drive that is in one of the physical machines. Does that mean I cannot ...
0
votes
0answers
14 views

Are Xen 4.1 virtual machines compatible with XCP?

I have a couple of vm installed with Xen 4.1 (basic Xen Hypervisor), now I would like to install XCP packages on my wheezy server. I've read that XCP took control of the server disks and network ...
1
vote
2answers
143 views

Pros and cons of virtualization [closed]

I'm aware of many questions here discussing similar topic, but in this case, I'll try to be much more specific. One target scenario is small to mid-size ISV, the second scenario is an enterprise ...
0
votes
1answer
489 views

XenServer HA (failover VM's) without shared storage

In the university from Uruguay where I work, we have 2 IBM BladeCenter S with 4 server blades each one. Each blade have XenServer 6.2 installed and working. Our idea is have each BladeCenter in ...
-2
votes
3answers
41 views

Linux CLI server with a virtual windows machine running? [closed]

I have a ubuntu CLI server and I am wondering if it's possible to install a windows machine on a CLI server? My hope is that I can take a pre-made VirutalBOX or VMware image and put it on my Ubuntu ...
4
votes
1answer
139 views

Should new Linux VMs under ESXi 5.5 mount their filesystems with discard option?

When creating new Linux virtual machines using recent (>= 2014) distributions in VMware ESXi 5.5, should they mount their filesystems with the discard option ? I make the assumption that the VM's ...
0
votes
1answer
151 views

KVM : VMs need several restarts to boot (on 2 different hosts)

I'm using a KVM hypervisor on a Ubuntu Server 12.04 server. My virtual machine's virtual disks are LVM volumes, formatted as ext3. The guest OSes are all Ubuntu 12.04 and 14.04 server. Everything ...
0
votes
1answer
264 views

CARP Virtual IP does not ping in virtualized environment

We have three physical machines with SmartOS on them in a LAN. Two of them, 10.40.0.30 and 10.40.0.240 are hypervisors with two pfSense-based virtualized gateways on them. These gateways have ...
0
votes
1answer
104 views

Is it advisable to use virtual Linux server installed on i5 / 8GB / 500GB desktop class computer? [closed]

We have CentOS 4.3 P4 / 512MB /Linux server installed somewhere in 2006-7. This machine has three network interaces for leased line, broadband (backup) and LAN. We use Sendmail, Fetchmail, NAT, Squid, ...
5
votes
3answers
1k views

Where to install ESXi so that all local drives are available to VSAN

I am currently setting up a new 3-host VSAN cluster that will be placed into production soon. (Note this is the newer "Virtual SAN" (VSAN) technology, not the older vSphere Storage Appliance (VSA) ...
0
votes
0answers
262 views

Kickstart “Unable to download kickstart file. Check parameter”

So I'm using 2 VMs (CentOS 6.0), one acting as a build server, the other is a new server I'm trying to build with a kickstart. When I start the VM for the new server (with the build server already ...
0
votes
1answer
860 views

Find out ESXi host from VM? [duplicate]

I have a monitor that is running on all guests, Windows and Linux. I'd like to send back the Parent host of the guest with this monitor, How can I found out the VM host from within a ESXi VM? Ideally ...
0
votes
1answer
54 views

How do I make a new image in Eucalyptus from an EBS-backed Windows instance?

In Eucalyptus 3.4 I have an EBS-backed Windows instance. There have been a lot of System Updates and I would like to make a new image from the instance. Is this possible and if so how?
-1
votes
1answer
37 views

KVM Server error

I have installed KVM server in Centos 6.4 and i have created gluster storage pool in that gluster storage pool i have installed some linux and window VM's i have assigned 1GB RAM and 20 GD virtual ...
0
votes
2answers
129 views

non-GUI connection to local Hyper-V VM without network

I have a virtual machine on Hyper-V manager (Windows 2008 R2) without a network configured on the VM. From a powershell script running on the host Windows server, I would like to query into the OS of ...
-1
votes
2answers
377 views

Best type of virtualization when CPU has more threads than cores

I have a 4 cores/8 threads Intel Xeon processor. This is something I tried to particularly ask in SolusVM support, however I haven't got a good reply. I even don't know if they are right: they told me ...
1
vote
1answer
93 views

Identify if windows server is dedicated or vps [duplicate]

I have offers for vps and dedicated hosting. The price for dedicated server is around $100/month which makes me think whether I am really getting a dedicated machine or just scammed to give me vps in ...
1
vote
1answer
485 views

XenServer 6.2 guest network configuration

None of VMs I tried to install can't reach internet. I have Xensever 6.2 installed on a server with single NIC, which can be accessed via 2 public IPs. XenServer can ping google.com and seems to be ...
1
vote
0answers
42 views

XenServer pool, unable to access certain networks from 2 servers in pool

I have Xenserver pool of of 3 xenservers, at version 6.1. After we got a serious DDOS attack on our network, all servers got rebooted (whole pool of 3 servers got restart and entered into maintenance ...
1
vote
2answers
82 views

Is it possible to mount a virtual machine as a networked drive?

I have two virtual machines on two separate networks. They both run Centos 6. I use the second as a cheap backup for my first VM via FTP. It works fine, but it would simplify things if I could mount ...
2
votes
0answers
379 views

Hypervisor The operation cannot be performed while the object is in it's current state

I attempted to reboot one of my VMs in the Hyper-V Manager. It's a Centos VM and all of my other centos machines are behaving as they should although I can't get this particular one to boot. I'm a ...
1
vote
0answers
47 views

How to handle virtual environments on a secure network

We do embedded software development. As such, we use a wide variety of tool sets for the many different targets that we work with, and we frequently move from one project to the next. Developers ...
0
votes
0answers
27 views

Boot to last VM status on XenServer reboot

I have a Citrix XenServer 6.2 on a non-prod enviroment, which means that could be affected by power outages from time to time. This server has a lot of VMs, some of them are power on and other not. ...
1
vote
0answers
64 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 ...
0
votes
3answers
278 views

How to find out the virtualization type of an linux VPS?

Having access to an VPS, i need to know which type of virtualization it is running from the terminal. How can i know if it is OpenVZ, Xen, KVM, etc?
0
votes
1answer
55 views

Getting VMware Port-ID using commandline

Is there a way to directly gather the vmware port-id using commandline? I'm trying to make monitoring switchports easy through esxcli but in order to get port statistics I require the portid of a VM ...
3
votes
1answer
112 views

'conntrack' tracking private TCP sessions between VMs

We have a pair of VMs running as virtual routers and BGP/TCP peering between the two virtual routers (running over QEMU/KVM). The VMs each have a tap interface that is connected to a Linux bridge that ...
4
votes
3answers
83 views

Virtualisation suitable for packet-intensive application?

We have a custom and VERY bespoke application that runs on a Windows 2008R2 server. It's primary function is to connect to many tens of thousands of IP addresses as quickly as possible and interrogate ...
2
votes
1answer
48 views

KVM image size has changed

We had a 180GB VM image. Inside the guest VM everything is OK and hdd size is 180G. but when we look the image size on the host it is 475MB. I am afraid that if we restart, the VM wouldn't work. I ...
0
votes
1answer
105 views

Intel processor has 8 threads but only showing 4 in task manager

I have a server with an Intel Xeon E3-1240 3.3Ghz processor. According to intel's website this processor has 4 cores and 8 threads, however in Windows Task Manager there are only 4 showing. The ...
0
votes
1answer
1k 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
261 views

Serving Applications from Linux server to Chromebooks/Browsers?

I'm looking for a way to serve desktop applications (RemoteApp style) to a Chromebook (or other web browser), but running on a Linux server. All of the systems I've come across thus far (XenApp, ...
0
votes
1answer
173 views

How does migrating a running Virtual-Machine from one Hypervisor to another actually work?

How does migrating a running Virtual-Machine from one Hypervisor to another in a cloud environment actually work? I know that it is possible and that this feature exists. But what does actually ...
0
votes
1answer
18 views

Network two vm's on one host machine whether on or off the network domain

I have a corporate network with the ip addressing range of 192.168.0.x I have a host machine (a mac) which when on the network gets it's ip's from dhcp. On the host machine i have 2 Virtualbox ...
0
votes
1answer
71 views

How does creating multiple virtual machines affect performance of a Dell Server? [closed]

Say, a dozen applications have to hosted on a single Dell Server using open source technologies like XenServer. Some of the applications are resource intensive while others are not. What should be ...
1
vote
1answer
249 views

vanilla ubuntu-vm-builder on i7 aborts aborts (with PAE?)

host: intel i7-4* cpu, running linux kubuntu 14.04 guest: attempting to create. ubuntu-vm-builder kvm saucy eventually, Get:1 http://archive.ubuntu.com/ubuntu/ saucy-updates/main ...