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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100 views

ESXi 4.1 VM gone after hard reboot

I have a serious problem here. After I forced a reboot of a freezed ESXi 4.1 server, a VM is literally gone. When I ssh to the host and run ls -lah inside the datastore, it returnes: ...
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91 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 ...
2
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0answers
26 views

Xm setup on SunFire X4200

I'm trying to set a Xen VM on a SunFire X4200. I'm using Debian Wheezy and have followed this guide https://wiki.debian.org/Xen which I used in previous attempts on different servers and worked ...
2
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0answers
82 views

xenserver vm routing fails half the time on the same network

I recently switched from openstack (due to complexity) to xenserver at work, I ran into an issue that I can't solve, I can ping the server all the time but the vms part of the time. here is a ...
2
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0answers
88 views

Recompose a VMware vSphere machine without personal application data loss?

Our organization has converted a large percentage of our employees to VDI. Our logic is that we create a master image for each linked-clone pool, dedicate each linked-clone pool to specific purposes ...
2
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0answers
157 views

Can't lock vz with proxmox

I would like to backup my virtual servers to move them away. And when i have started the backup process then i only see this every time: Feb 09 08:40:34 INFO: Starting Backup of VM 101 (openvz) Feb ...
2
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0answers
300 views

linux hardware raid 10 / lvm / virtual machine partition alignment and filesystem optimization

I've been reading everything I can find about partition alignment and filesystem optimization (ext4 and xfs) but still don't know enough to be confident in setting up my current configuration. My ...
2
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0answers
168 views

Performance Implications of running multiple Virtual Servers using one base virtual disk?

I tried looking through old questions, but couldn't find one that hit this exact question. In VmWare's documentation on Snapshots, they mention utilizing them for a "process tree" setup. This would ...
2
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633 views

“Error: Unknown error” when trying to start virtual machine from VMware server

Problem We are running VMware Server 2.0.0 build-116503 on a Ubuntu 10.04 LTS server. There is a virtual machine installed, running Lotus Domino on Windows Server 2003. Ever since a sudden power ...
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48 views

Make other VMs show in Network on windows server in Azure

I'm deploying a desktop app that connects to a remote database. standard 2-tier setup, but it's not a web app. People will log in via RemoteApp. But I'm having trouble getting the app instances in ...
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0answers
110 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 ...
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175 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 ...
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0answers
92 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 ...
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0answers
48 views

PHP scripts on live Apache servers consume more memory?

Lately, I've been spending time trying to optimise PHP code. I develop on localhost inside a VM and have been putting the memory_get_usage() at the end of scripts to help do this. The localhost uses ...
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0answers
22 views

Where do you store shared secrets used in building VMs dynamically (phoenix servers)?

We use vagrant to spin up linux VMs for dev, testing, and evaluation servers for our software. Most often, devs are using linux from VMs inside an AD-connected windows7 box. The configuration of the ...
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0answers
179 views

Can't connect to proftpd from outside the virtual machine

This is related to a previous question. I have a machine with Windows 7 acting as a server and it hosts several virtual machines. One of them, a Debian Squeezy is acting as a PostgreSQL server and I ...
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0answers
141 views

Сan I use IOMMU for VT-d to give each virtual machine one at a time GPU?

If I use VMWare with 4 virtual-machines and 4 GPUs (nVidia Quadro/Tesla), then can I give (move) some devices to different virtual-machines for each by a single card? If I have one of these CPU, then ...
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0answers
117 views

How to install Gitlab in a VM on a production server?

I have a production server running Ubuntu 12.04 and I would like to install on it a VM with Gitlab (using Vagrant and Virtualbox). Let's say that the address to access Gitlab is gitlab.mydomain.com . ...
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41 views

Computer management, Access denied only on win XP VMs

This may take a few lines to setup, so bear with me. My company runs vmware, mix of win xp and win 7 VMs. My tech group have admin rights throughout the domain. We're having some scanning issues ...
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0answers
88 views

Update clock on virtualbox virtual machine with cent os from host

I have a virtual machine, with cent os installed, and everytime I sleep the host computer, the clock of the VM goes out of sync. I would like it to pick up the current time from virtualbox - which I ...
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0answers
52 views

How to configure on which server a VM is created in Oracle Cloud Control & Oracle VM Manager?

The hardware configuration is fine and I can reach my two servers in my serverpool. The problem is that I have to use two different brand of servers on which server 1 has Virtualization Technology and ...
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347 views

Puppet agent (v3.0.1) hangs connecting to master (v3.1.1) in VM behind firewall (with NAT based access) - SOLVED

I am using puppet agent v3.0.1 (On FreeBSD), trying to connect to a puppet master v3.1.1 (On Ubuntu) and the puppet agent hangs with the following debug output: puppet agent --debug --no-daemonize ...
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0answers
76 views

Storage vMotion fails with a DMotion error

I've ran into an issue where several servers that I've been trying to migrate to different datastores the past few days are unable to migrate properly. Rather than migrating like normal, the servers ...
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0answers
77 views

VCenter Upgrade Does not work

Task/Details We need to upgrade our Vcenter enviornment from v4.1.0 Build Number: 799345 to v4.1.0 Update 3 Build Number: 816786 Problem After backing up the database and the SSL certificates we ...
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376 views

Set up LXC container as VM with its own IP address

I need to set up a fenced environment in on Ubuntu server. The actual use case is to have two separate websites running on the same physical box, but I want one of those websites running in a fenced ...
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187 views

ejabberd on vm not connect to another xmmp server (iptables dnat dport 5269)

i migrate a ejabberd server to a vm with only private ip. is work fine but not connect to anothers xmmp servers. log: s2s connection: xxxx -> gmail.com (remote server not found) telnet test: telnet ...
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86 views

Virtual Machine server restarts mysteriously

We have a Windows Server 2003 virtual machine running on Hyper-V. Some months ago, it started rebooting ramdonly once a month, so so. It restarts out of nothing leaving no critical/warning entry in ...
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1k views

Can not display Proxmox console due to Connection time out

When I try to open console in proxmox ve nothing happens and I see this error in logs: no connection : Connection timed out TASK ERROR: command '/bin/nc -l -p 5900 -w 10 -c '/usr/sbin/qm vncproxy 100 ...
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0answers
163 views

VMWare VMs not autostarting after reboot

I have an issue where my VMs do not auto-start after an ESXi reboot. They are all properly configured to auto-start, but after rebooting the ESXi they are still off -- I have to manually go and hit ...
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0answers
76 views

IIS: hostname breaks website

I have a Azure WindowsVM with a IIS. Everything works fine until i add a hostname in the bindings. Then I get a 404 error.
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0answers
549 views

How to redirect a Hyper-V COM port named pipe to a file?

I would like to redirect the serial port output on RedHat 5.7 to some recordable or reviewable medium. The normal way to do this on a physical machine is to add the console parameters to the kernel ...
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0answers
81 views

Server needs to ping outgoing before allowing connection

Okay, first our setup: I'm currently working over VPN to a mac mini OSX 10.6 server. We have a testsetup VM running on that, using ubuntu 12.04. Earlier today, there was an outage because of which ...
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0answers
32 views

Where to look for regular scripts?

It seems to me that our server freezes every 30 days around noon due to the huge utilization of xvda data transfer partition - writes are 50 times higher than normally (according to the health monitor ...
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0answers
582 views

Unable to connect to vrde virtualbox VM remotely

So I've remotely created my first headless using ssh. Now I'm attempting to connect to this VM using RDP so I can install Ubuntu Server, but I cannot get connected at all. When starting the VM ...
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0answers
246 views

Unable to access CRM 2011, Windows Server 2008 - Server is not operational

I am new to Dynamic CRM 2011 and trying to use it first time (Running on Virtual Machine). I am getting the following error message in web browser. Any ideas to fix the issue? Business Management ...
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0answers
300 views

how to access virtual machine behind NAT from public network

I have a 1&1 hosting dedicated server (linux centos 5.x with plesk) (IP 74.208.98.x) and configured a nagiosxi virtual machine to run in NAT mode under VMware player 4.0. because i unable to use ...
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0answers
31 views

Can reaching shared storage capacity prevent a VM from starting up in XenServer?

I have a VM installed on XenServer; it's drive is on an NFS share, which has just reached capaciy--could this prevent the VM from starting up?
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0answers
519 views

how to install Ubuntu over http in virt-manager

I am having a situation where I can not use a CD or PxE boot or wubi to install.I need to necessarily do an http install of Ubuntu.I am basically trying to create a guest OS in a virtualization setup ...
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0answers
255 views

Nginx Seems to be Sending Cached Versions of Pages

I have installed nginx, and things work very well for production, but I sometimes have this problem when developing. To reproduce the problem, I have done the following: Create a file in a public ...
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0answers
102 views

Why is connection from Windows Virtual XP hosted on a Win7 box to standalone SQL server slow?

I have an application that will only run on Windows XP and it utilizes a SQL backend server. I am putting new workstations in this office with Windows 7 and installing the software in a Virtual XP ...
1
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0answers
644 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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0answers
84 views

Routing requests through a VPC guest

I’m trying to route requests to specific subnets through the XP Mode VPC guest in windows 7. I have a loopback adapter on the host set to 192.168.233.1 and then a second NIC in the VPC attached to ...
0
votes
0answers
12 views

IIS App Pool recycling unexpectedly

I am running IIS in a Parallels VM of Windows Server 2012 on a Macbook (development machine) and any time any of the files in the website change (CSS, HTML, doesn't matter), the App Pool is recycled. ...
0
votes
0answers
21 views

Bridged Connection weird IP release in the NAT router

I use Vmware Player 6.0.2 to run linux on my linux machine with no vmware tools. Both linuxes are Slackware 14.1. In my guest system I have a web-server with bridged connection. Both, host and guest, ...
0
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0answers
88 views

Can't boot VM after P2V or ghost - Linux 2.6

I got this old machine that runs on a p2 400 and a Linux Debian 3.1 with kernel 2.6.8 and since it has modified binaries due to internal undocumented changes in the code, migrating off manually isn't ...
0
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0answers
36 views

Migrating a VMware ESXi 3.5 image from one server to another

The primary reason we're migrating is to keep all our configuration settings ... php, mysql, Apache Solr ... the same when we change servers. The existing server is behind a firewall and that's all ...
0
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0answers
120 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
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0answers
41 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
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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 ...
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 ...