A virtual machine (VM) is a completely isolated guest operating system installation within a normal host operating system. It is a software implementation of a machine (i.e. a computer) that executes programs like a physical machine.

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1answer
70 views

VM that allows host to communicate with guest while using a VPN [closed]

My goal: Run a VM locally hosted on my Windows 7 box that runs Windows Server with IIS as the guest VM. I want to communicate with with websites on the guest (Windows Server) with my host (Windows ...
0
votes
1answer
153 views

Proxmox resize failed: exit code 1

How can I resize the hard disk in proxmox? When I have tried, I get the following error. "command '/usr/bin/qemu-img resize ...
2
votes
4answers
504 views

VM Corrupted, what's the next step?

So one of our older VM's, which usually has no issues, is giving this error now when starting. It keeps going in a loop restarting and turning off with this error message. I figure it's probably ...
1
vote
1answer
216 views

Configure an Azure VM for Dynamic DNS for Cloud Services

I am trying to setup an Azure VM with proper DNS to allow multiple cloud services to communicate across cloud service boundaries. As I understand it, I need to provide my own DNS server. I do not ...
2
votes
2answers
75 views

When to employ server failover in a virtual environment

This question kind of got me thinking about fault tolerance in DHCP, so I did a little digging in my current environment and discovered that we only have 1 DHCP server per major site in our company ...
2
votes
2answers
82 views

How do I give label to vSwitches on VMWare?

I've searched extensively trying to name the vSwitches that I create, but all I can name them are "vSwitchX" where x= some number. How do I give these switches names? I'm using the Web Client. ...
-1
votes
1answer
260 views

Two NIC (eth0,eth1), two global IP on same subnet. Became unreachable to IP on eth1 after reboot

I configured a CentOS 6.5 virtual server and deployed it to a remote VMware vSphere environment. We needed two IP address, so I added a virtual NIC and assigned a second IP on eth1. I didn't ...
0
votes
1answer
136 views

Add more than 10 vmnet in “vmware server” 2 [closed]

I need to create an esxi 5.5 nested environment on win 2k8 and i would want to do it on vmware server instead of workstation. vmServer has "only" 10 vmnet adapters, but i've 15 nic on my physical ...
0
votes
0answers
22 views

Monitoring virtual machine [duplicate]

Can you recommend some tools for monitoring Ubuntu that is running on VMware Player? I've found Nagios, GroundWork etc.. but they're all too complex for measuring just the energy consumption of a ...
0
votes
1answer
31 views

SQL, website and desktop application on a Windows Azure server?

I recently started considering Azure over my current VPS host PhotonVPS for Virtual Machines. I assume that Virtual Machines are the same as VPS servers (please correct me if I am wrong about that). ...
3
votes
0answers
104 views

Most VMS refuse to start

Setup: Virtual Host, running server 2012, hosting around 10 production VMs Problem: Last night, 2 VMs stopped with no warning, event log notification, or any information. The rest of the VMs on this ...
0
votes
1answer
44 views

Linux Containers (LXC) : lx-execute and networking

I have a question about LXC Containers. I have some containers, if I lxc-start them, they come up with networking fine, but I want to just be able to run commands against them using lxc-execute, ...
0
votes
1answer
27 views

List all devices emulated for a VM

I have created a VM with the below command in qemu . (KVM enabled) #qemu-kvm -m 1024 -enable-kvm -hda /var/lib/libvirt/images/fedora.img NOW, VM is launched. I would like to know the exact devices ...
1
vote
1answer
102 views

A Robocopy job to copy files from VM Windows 2003 to a windows 2008 DFS Share over WAN

I have the following in a bat file running as a scheduled task on the VM Windows 2003 server robocopy "d:\Folder\Sub folder" "\\prod.local\shareddata\Loc\Folder\SubFolder" /S /R:0 /W:5 /NP /NS /NFL ...
0
votes
2answers
74 views

Are computations performed in a Docker container exactly repeatable?

I've read the question titled "How is Docker.io different from a normal virtual machine?", but I'm still not certain how "virtual" docker containers are. For example, in a scientific setting, ...
0
votes
0answers
137 views

Any disadvantage of running a virtual machine using files for its drives hosted on freenas/zfs?

I recently got tired of the really slow I/O reads and latency (10-30 MB/s read, not sure for latency but very slow) from a provider I rent a virtual machine from. He uses freenas, the virtual machine ...
0
votes
0answers
17 views

Can't use ssh in a VM Centos [duplicate]

When I tried to connect my Ubuntu 13.10 to my VM Centos 6.5 using ssh appear the message "Connection refused" or "No route to host" even than I change the port, noting change. See here I need to use ...
0
votes
0answers
43 views

Xenserver firewall consideration

We are setting up Xenserver for a production environment with seperate VMs for a website, billing, control panel, mail. My question is, should we rely on each server's IPtables or is it necessary to ...
0
votes
1answer
118 views

Move big file from VM to host hypervisor in vmware vsphere

I have a big file (220G) I would like to move from a virtual machine to its host. The file is actually another virtual machine's disk file. for other smaller files, I would have done that with a ...
0
votes
1answer
37 views

Re-purpose DD660 (DataDomain) for VM Storage

We have an un-used DD660 (DataDomain) and an un-used x3650 M2 that we are wanting to use as a test bed for playing with Hyper-V as we look into it vs. VMware. Has anyone used a DD660 is simply ...
0
votes
0answers
34 views

Network setup issue with no connection between virtual machines

I have the following network setup: EDIT: NOTE: WARNING: In the above Windows1 should have the ip 192.168.137.1 The issue that i am having is that every machine can ping and connect to every other ...
1
vote
1answer
223 views

Which CPU model to set for guest KVM when processor is Ivy Bridge?

For a KVM host with an Ivy Bridge processor, which MODEL should use for CPU>CONFIGURATION in Virtual Machine Manager? Ivy Bridge is not available.
1
vote
1answer
89 views

Bridging is breaking the server: KVM configuration

I'm pretty new to networking and just can't get my head around this. I'm trying to setup KVM-Qemu so I can run some virtual machines. The instructions I'm following are telling me to use eth0 and ...
1
vote
0answers
114 views

Configure Windows 2012 VHD to boot in Windows 2008 R2 Hyper-V

I have a server running Windows 2008 R2 and Hyper-V. I use this server routinely to create Windows 2008 R2 and Windows 7 VHDs to boot within Hyper-V and natively. I have created a VHD, used imagex to ...
2
votes
1answer
97 views

DAG: Exchange 2010 and 2013

I have a server 2012 box that is now running AD/GC/DC/DHCP/DNS/Hyper-V and exchange 2010. The domain/exchange started on a sbs 2003 box that I recently demoted after transferring all roles to the ...
1
vote
2answers
79 views

How to send a snapshot of a VM

This may sound a bit simple and I could have it answered myself already but I just want to be sure in the process of sending someone a snapshot of my VM. So I am running vmware vsphere client version ...
0
votes
0answers
25 views

Jumphost VM not able to communicate with LAN

I have setup a jumphost VM on WinXP. It has 2 NICs. NIC1, which is the LAN, has the following IP settings: IP: 10.0.0.1 /24 (No default/ DNS configured) NIC2, which has external connections, has ...
1
vote
2answers
67 views

How does a hosting company change a file on a vserver without logging in?

In my virtual server, ssh is not on port 22, I don't allow login with passwords, and I don't allow root logins. Recently, the server was not responding. My hosting company told me that my Apache ...
0
votes
0answers
17 views

RHEL6 virtualisation license costs [duplicate]

Red Hat pricing for virtualisation seems very unclear. I've been quoted that one license covers "1 physical socket-pair OR 2 virtual nodes". I'm looking at running a RHEL6 base system as a fileserver, ...
1
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0answers
182 views

Unable to install windows 8.1 on virtual machine

How can I create a Windows 8.1 virtual machine using Proxmox? I downloaded the evaluation copy of Windows 8.1 Enterprise. However when I boot up the virtual machine, it cycles between the two below ...
-1
votes
1answer
232 views

Vagrant w/VirtualBox and Multiple Network Interfaces [closed]

What's the right way to configure multiple network interfaces with Vagrant? Here's the simple Vagrant file I'm testing with: . Vagrant.configure("2") do |config| config.vm.provider :virtualbox do ...
3
votes
1answer
237 views

How to protect an appliance from unauthorized copy?

At the company I work for, we plan to build an appliance to simplify the deployment of our products. We will probably run a VM with docker containers underneath (containing the products) and a web ...
1
vote
1answer
52 views

Application upgrade - in-place or new VM?

We have a virtualised Windows infrastructure and generally have dedicated servers (1 app = 1 server). I am about to commence an upgrade project and am trying to decide if there is any benefit in ...
0
votes
1answer
186 views

High CPU% stolen on EC2 instance at extremely regular intervals

I have a m1.small EC2 instance on AWS running some websites. I noticed my CPU usage have peaks at regular interval of times, exactly every 30 minutes (0:06, 0:36, 1:06, ...). I've checked my crons (I ...
0
votes
0answers
65 views

Debian on VM has web access but can't be pinged

I have just installed Debian on a Virtual Machine. I have internet access on the VM and installed SSH. I then did a ifconfig and discovered that the IP address is 10.0.2.15 which is strange as the ...
1
vote
1answer
407 views

Qemu - Disk Type, SATA Controller Questions

This is not so much of a question asking for an answer as it is just looking for an explanation. Imagine the following scenario. I have a Windows 7 Laptop, Dell Precicion M4500 series, with an SSD ...
1
vote
1answer
187 views

Disable TCP checksum offloading on KVM virtual network

I have a virtual network for connecting KVM guests with the host. I need to disable TCP checksum offloading on this network. The ethtool works fine but I want to disable it permanently and I could ...
0
votes
1answer
72 views

SSH painfully slow on my local network?

I have a CentOS 6-x64 Server running through VirtualBox on Windows Server 2012R2, but whenever I SSH into it, it's painfully slow. This happens for both Putty on Windows, and SSH on OS X. I've read ...
1
vote
1answer
170 views

Azure two VM's in cloud service, can not RDP to one

I am new to Azure and trying to setup our companies testing environment in Azure. As I understand it for two machines to talk to each other in Azure they need to be in the same cloud service, i.e. ...
1
vote
2answers
76 views

Windows XP VMs on ESXis not pinging each other

I'm running a virual environment of this sort. There's a UCS box that has several VMs. I've setup 3 Virtual ESXi VMs and vCenter Server appliance. Using the appliance, I installed 3 WinXP VMs on the ...
3
votes
1answer
279 views

Hyper-V and AD --> recommendations for small site? [closed]

I have a dilemma about how to proceed with new AD / Hyper-V installation and would appreciate your views, experience and advice. Situation: we are a small company with single site (25 users) and few ...
0
votes
1answer
83 views

Rails 4 app + nginx1.4.4 + passenger4.0.37 on a headless Ubuntu12.x server running on a VM on my local machine

At the moment, it gives me a disapointing blank page. No 500, no 404, no errors on the nginx log file, just a snowstorm of interrogations. And its been hours of googling without success. So if anyone ...
-4
votes
3answers
81 views

Ubuntu 12.4 VM Change Static IP [closed]

I am wondering if you have the option to change the static IP on a Ubuntu VM or if you should just spin a new virtual machine up? Has anyone out there every attempted this?
-5
votes
4answers
88 views

How to get the specs of a server?

I have a virtual machine and boss says "Hey, get me the specs on that server." presumable because she wants to acquire a comparable one and will ask me to set it up from a backup of our current one. ...
1
vote
1answer
57 views

Do linux security modules (LSM) run on virtual server (vServer)? [closed]

I have a vServer for 10 EUR/month from 1und1 and I know that it is not a dedicated machine (meaning I have less control). I know that I can use some the system as root, yet the kernel is untouchable. ...
-1
votes
1answer
47 views

Implementing hardware virtualization for custom hardware

When using QEMU/KVM there are certain network adapters that are supported and emulated. If one wanted to emulate the guest OS's original network adapter (e.g - a Broadcom interface that was present on ...
1
vote
0answers
96 views

Virtual Machine IP address type changed from static to dynamic

I am testing VMM in a lab environment, I have one VM host machine with one physical network adapter that has been allocated an IP address in the 192.168.1.0/24 subnet on a router. I have create ...
1
vote
1answer
117 views

Iptables configure gateway virtual machine with 2 interfaces

I have a virtual machine that works like a gateway from other virtual machines. The configuration of the interfaces is the following UBUNTU: eth0: ip: 10.0.2.2 netmask 255.255.255.255 ...
-1
votes
1answer
24 views

EFI virtual machine on Hyper-V

Is it possible to create EFI virtual machine running on Hyper-V? Which Hyper-V version should I use?
1
vote
1answer
58 views

Shrinking Linux Partition and VM's

I have a Centos 6.2 x86_64 Virtual machine running on an EXSi 5.1 Server. It currently use 320GB of space which is way too much space and need to be shrunk to about 80GB. What I need to do is reduce ...