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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Connecting a LAN drive to Windows 2008 / 2012 VM instance on Google / AWS / Azure

Scenario: Our office uses a Sage software on multiple workstations. The software is individually installed on each workstations, but the database is stored on a server tower that has shared access to ...
4
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3answers
182 views

VMware CPU Hyper Threading Scheduling Affinity

I have looked everyware and read a bunch of documentation on this but haven't found a direct answer so here it goes: There is a setting in the "Resources" Tab in vCenter that lets you configure ...
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1answer
87 views

Should I deploy hadoop on physical machines or virtual machines?

We will deploy a hadoop cluster on hundreds(say 300) of physical x86 nodes. Since we have no much production deployment experience, there is a simple question as the title we want to hear response ...
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0answers
56 views

Effect of firewall on virtual machine [closed]

We have a ubuntu-12.04 host machine that has another ubuntu-12.04 guest machine running in it. The network interface between the two is bridged. I would like to put the host machine behind a firewall, ...
1
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0answers
64 views

Checking if two virtual machines are running on the same host

Is there a way to see if several Virtual Machines are running on the same host? Specifically, I have three VMWare VMs (each running a Ubuntu Server 14.04) and I have tried to compare different pieces ...
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1answer
48 views

Nginx on VM on ded. root server has very slow download rates

I'm running VMware ESXI on a kimsufi dedicated root with 100Mbit/s network access. As the root has only 1 public IPv4 available and ESXi cannot NAT its VMs, I assigned the public IP to VM#1 which is ...
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0answers
80 views

CRM 2015 installation hangs without errors on Windows Server 2012 installed in a VM

I have installed a Windows Server 2012 and SQL Server 2012 on a VM using VMware Player and then installed Dynamics CRM 2013, working out all the configuration problems. The installation hanged once ...
0
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1answer
27 views

Azure VM CNAME Returns HTTP 502

I have a Virtual Machine in Azure with a Cloud Service VIP. I have opened up an HTTPS endpoint. If I alter my hosts file to point to the VIP, I can reach my IIS site without any trouble. So far so ...
1
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1answer
76 views

Moving Azure Virtual Machine which is Domain Controller to another region

I want to move an existing Virtualized Domain Controller from North Central Azure Region to East Region. I am aware about how to move VHDs and basically migrate it to another region. Though my ...
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0answers
88 views

How to make sure file in VM's folder is copied with VM when cloning VMWare Virtual Machine

I am running a vmware environment (Version 4 unfortunately) which requires me to use a bios rom file in order to run server 2012. I upload it to the root folder of the VM after creation, before boot ...
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2answers
215 views

Move Azure VM from one account to another in the same Bizspark subscription [closed]

I have a Bizspark subscription with 2 accounts using some of their services. One account which is mine, has 2 VMs running. Last week I started another VM without noticing that this one was going to ...
2
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2answers
1k views

Do Hyper-V Virtual Machine Guest Operating systems need to be shut down before restarting Windows Server 2012 R2 they are running on?

I am fairly new to using Hyper-V. I am trying to learn the best practice for shutting down and restarting my server when virtual machines are running on it. I have a physical server running MS ...
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1answer
68 views

Need to Upload VHD's to Azure? Best Practice?

So im pretty new to Azure, but we don't have a solid backup for our VHD's. What's the best way to set up some "weekly" upload for VHD's that have changed for instance? We have about 3-4 TB's worth. ...
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0answers
30 views

Unable to connect Azure VM with new key generated

I lost my private key that I use during the VM creation, so I resort to create another one. I first run openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout privatekey.key -out cert.pem ...
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0answers
345 views

citrix xenserver 6.5 can't get vm's public network

Can't get my vm's guest out connection..! Premised: I alreay use xenserver on a test server dellt310 with two ethernet card that works perfectly, but now... -> I have an hetzner dedicated server ...
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0answers
135 views

Bus error during PHP5 is running a simple script - what?

When working with PHP scripts, I usually do not have to bother with the underlying system. Today, I have to. A PHP script (cronjob) that has worked fine is crashing since 2 days ago. The cronjob mail ...
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votes
1answer
143 views

Error when trying to install Ubuntu 14.10 Hyper-v VM from Virtual DVD .iso [closed]

I'm trying to install a Hyper-v Gen 2 Ubuntu 14.10 Virtual Machine via a DVD .iso that I have attached as a virtual DVD on my Windows Server 2012 R2 First, two things that I know will be asked: ...
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1answer
300 views

Proxmox: 1 NIC, 1 Public IP, unable to get WAN interface working in VMs

I have a computer running Proxmox, and it has 1 single NIC that is directly connected to internet and has a single public IP. Then, I have different VMs (KVM) running and one of them is pfSense. What ...
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2answers
69 views

Restarting failed hosts on VMware vSphere ESXi

When a cluster is configured for High Availability (HA), VMs can be restarted onto an alternate host when the its host has failed. However, I am wondering: if the host has failed, is there a means ...
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1answer
61 views

Virtual Machine training setup for students [closed]

I went to a training session where I was learning to use some software. The course was administered through the use of virtual machines. The instructor had a laptop that was running some sort of ...
0
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0answers
76 views

Access port forwarded http service inside host only network vbox (docker)

I used vagrant to create a host only network for my ubuntuserver machine with this option: config.vm.network "private_network", type: "dhcp" Inside this box I have a docker container which is port ...
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1answer
81 views

Open source firewall as a virtual appliance? [closed]

Is it possible to have an open source firewall which can run as a virtual appliance into a guest VM where all traffic from the other VMs should go through this firewall VM? And it supports also ...
2
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1answer
157 views

vSphere 5.5 in HA Environment and Autostart VM's [duplicate]

We have the setup as above which is "managed" by our vendor. During a recent power outage we found that none of the VM's came up upon the return of power (roughly 25 VM's), which once we discovered ...
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votes
1answer
336 views

failed to run bootloader: -3 on create with xl

I have a Ubuntu 14.04 migrated from Virtual Box Have 3 partitions. I've updated the /etc/fstab for recognize the new partitions and chrooted for update the grub I'm using the following ubuntu.cfg ...
3
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1answer
84 views

Move home directory on Azure Linux VM

I continue to encounter an issue moving my home directory to a new disk on a CentOS VM on Azure. On creation the server is configured to use a SSH key for authentication and the "no password" option ...
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0answers
37 views

What are the network prerequisites for Windows Azure Pack

I have followed many articles to install and config windows azure pack distributed, But every time I finish configuring everything, the azure pack is not working and give me different errors, seams to ...
1
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1answer
35 views

Locally runnable VM to simulate Amazon EC2 host

I'm currently managing an application hosted on the Amazon EC2 cloud. I'm curious whether it's possible to get hold of a VM that would most closely mimic the Red Hat environments that one deploys to ...
0
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0answers
99 views

PySphere ESXi 5.0 Python VM Provision

I found this tutorial on creating a vm with Python. http://jensd.be/?p=370 I'm stuck on the bit about "esx_host" I tried the IP of the ESXi server and 127.0.0.1 and the script errors saying it ...
0
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1answer
15 views

VMwaree Workstation. Estimate bandwidth between guest and host systems [closed]

How can be measured the bandwidth speed between Windows 8.1 as host OS and Turnkey LAMP (Debian I guess) stack as guest?
4
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2answers
735 views

Running containers inside a virtual machine?

It is my understanding that containers are much more lightweight than VMs because they do not virtualize the hardware but instead just isolate the software running in them from software running in ...
0
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0answers
109 views

Can't connect Windows Azure VM with MySQL On-premise

I have a VM on Windows Azure with Windows 2008 R2, and I'm trying to open a connection to an on-premise MySQL database hosted on another network. We cleared the VM's public IP (the one displayed on ...
0
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2answers
130 views

Azure virtual machines in the same network can't see each other

I created a virtual network in Azure and added few VMs in it. My expectation was to Ping/Access each machine from the other machine in the same network. However, machines don't seem to recognize each ...
0
votes
1answer
56 views

Setting up a private server for Windows and Mac Computers [closed]

I work in a University Laboratory and we want to install a server that allows each user to login to any computer in the lab with their own credential (We have a small laboratory with about 10 ...
0
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1answer
75 views

Hyper-v number of Virtual Processor (Virtual CPU) on Virtual Machine

VMware world recommends that you only add one Virtual CPU on each Virtual Machine unless that your application requires detect more than one CPU. Does this recommendation could be applied on ...
0
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1answer
68 views

Changing Azure VM networking settings

This is probably a stupid question but I am going to ask anyway. I have a VM running on Azure. I go into network connections and change the IP and gateway and I loose connection. What options do I ...
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votes
1answer
70 views

Virtual network - tracert to local vm results in over 255 hops [closed]

Why does my tracert take over a maximum of 255 hops, when both vm's are on the same local network, hosted on my laptop? I have a laptop which is connected to my home router via wireless lan with ...
0
votes
1answer
170 views

SSH connection lost after random time interval, both sides claim the other closed the connection

I'm connecting to a virtual solaris machine from the windows host system running virtual box. This works for a while but after some time the connection vanishes. The stange thing is that sshd claims ...
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0answers
43 views

ISCSI drives suddenly lost partitions

We have a VM host, and each VM is given an ISCSI volume to boot off of. These ISCSI volumes are stored on a second server. Today, we had to reboot the VM host because ISCSI hosts kept going into ...
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votes
1answer
38 views

Preventing operating systems from being installed on a server [closed]

Is it possible to blacklist certain operating systems from being installed on a server? Example scenarios: 1) There is an existing physical server, with no operating system. Is there a way to block ...
0
votes
0answers
45 views

Cannot connect VMWare VMs to datastore ISO but can connect to same ISO on local PC via Console

VMWare 4.0U4b (I know...) I am unable to connect new or existing VMs to ISOs contained on any of the datastores. I was able to however boot from an ISO on my local PC connected via the Console. I ...
1
vote
1answer
157 views

HyperV External Switch Multiple VMs

I'm quite new to hyperv and I am having problems setting up network access for my VMs. The host has two physical network ports and I've assigned one to an external virtual switch. I've then setup two ...
1
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0answers
29 views

Is it possible to manage group of vms in openstack as a single instance?

I am reviewing openstack technology as a possible solution for creating sandboxes. What I am going to do is to create instances that contains several vms connected within virtual network. There will ...
0
votes
0answers
37 views

Azure VM stopped communicating with other VM:s in same virtual network

We have three VM:s in an Azure Virtual Network: VM01 (Subnet 1) - 192.168.100.4 - Running SQL Server 2012 VM02 (Subnet 2) - 192.168.200.4 - Running IIS8 with WCF-service on port 8083 and ...
0
votes
2answers
103 views

Multiple Web Server VMs or a Single VM with virtual hosts?

I have a number of sites running on various physical servers that I'm looking at moving into our virtual environment. Most of these are small sites usually with a MySQL database. User base is ...
0
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0answers
33 views

Accessing VM loopback IP from Host

My host machine runs OSX 10.9.2 and it is running a windows 7 VM using NAT. In the guest machine 10.0.2.2 points to the localhost of my host. However I want to be able to debug the same web ...
2
votes
1answer
191 views

XenServer 6.2: reattach SR but all disks have no description

I have recently reinstalled XenServer on my server. All the VHD files were stored on my NAS via NFS, so I re-added the NFS SR after reinstallation. However, all my VMs seem to be missing, and the ...
0
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1answer
53 views

Windows Server 2012 R2 - Email server's external IP address when the Azure VM starts

I have been trying to setup a task in the task scheduler that sends an email to me when the server starts. The email should contain the external IP address of the azure virtual machine. What should ...
1
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2answers
175 views

Recover Xenserver VM's in Linux Rescue mode WITHOUT Xenserver host

My physical server got hacked so my provider has shut down the server and booted it in Linux rescue mode. I've got full access to the file systems in Linux, however after hours of trying and searching ...
0
votes
1answer
53 views

Need looping Powershell script to email me when site has error message [closed]

Running 08 windows server on a VM We need to be notified by email or by other means whenever the site is either 404 or goes to maintenance page. Therefore, we need the script to be constantly ...
1
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0answers
76 views

Share serial port between linux containers

I have a requirement to share a single serial port between two or more linux containers. The LXCs are spawned by the host linux. I explored the option of socat, wherein the host will open a TCP ...