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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2
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1answer
206 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 ...
-1
votes
1answer
355 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
votes
1answer
88 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 ...
2
votes
1answer
53 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
vote
1answer
37 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
votes
0answers
115 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
votes
1answer
18 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?
5
votes
2answers
1k 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
votes
0answers
121 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
votes
2answers
155 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
61 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
votes
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
votes
1answer
81 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 ...
-2
votes
1answer
75 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
228 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 ...
0
votes
0answers
46 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 ...
-4
votes
1answer
39 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
48 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 ...
2
votes
1answer
206 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
32 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
44 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
129 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
38 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
213 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
votes
1answer
60 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
vote
2answers
202 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
54 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
vote
0answers
87 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 ...
0
votes
0answers
260 views

How to setup Linux DNS server for Azure VMs in virtual network?

I'm trying to use Linux Bind9 to set up a DNS server for my Azure VMs in virtual network. I got one web server and one mail server. My goal is making GoDaddy connect to my own DNS server, and redirect ...
0
votes
1answer
67 views

Accessing IPMI address

Currently if I want to know the server IPMI address, I will have to go to the SBIOS and check under BMC. Is there a way to get the IPMI address from inside a virtual machine ?
1
vote
1answer
56 views

Cannot kitchen init as non-root

I am trying to use test-kitchen, a tool to test chef (etc) cookbooks with virtual machines. However when following the guide and doing kitchen init --driver=kitchen-vagrant, I get the following ...
0
votes
3answers
110 views

Port scanning from VM users

After receiving an Abuse Notice from my server provider, i was wondering how they make to check up all my traffic and send me these abuses. I would possible like to know if there is some kind of ...
0
votes
1answer
158 views

Backup Hyper-V To Google Drive?

I was thinking about backing up a Hyper-V host to the cloud and a potentially crazy idea came to mind. With Google Drive, you can get 1TB of storage for 2 bucks a month. This would be more than ...
0
votes
0answers
104 views

Hadoop HA connection issue

I am using the Azure VM to build a Hadoop HA cluster, I'm trying to set up an Active namenode and a Standby namenode. But when I finished my configurations, I found I can only access one namenode via ...
1
vote
1answer
2k views

How do I get a network interface up in rhel 7?

I was given a rhel7 vmware template to use for provisioning rhel 7 test environments. When I created my vm, it booted up fine except that my network interface doesn't seem to come up. If I type ...
0
votes
1answer
249 views

How do you change host management credentials for a cluster in System Center Virtual Machine Manager?

How do you change the Host Management Credentials in System Center Virtual Machine Manager for servers in a cluster? If I right click on the server and go to properties I can see the Run As account ...
0
votes
1answer
746 views

CentOS 7 with vmxnet3 stops transmitting

I'm setting up a virtual machine running CentOS 7 in a vmware environment, using a vmxnet3 virtual network adapter, and have run into a rather frustrating problem: the interface stops transmitting ...
1
vote
0answers
118 views

Processes surviving Windows VM reboots?

Summary: A long-running virtual Windows Server 2012 system this weekend became very slow; from remote we did Restart-Computer -ComputerName xyzzy -Force, which succeeded by all accounts; except that ...
0
votes
1answer
169 views

Hyper-V and Windows Failover Cluster Manager - View available resources per node?

I have a Hyper-V host with Failover Cluster Manager and 6 VM nodes (hosts). How can I see how much memory and CPU is allocated per node? I want to know what my available resources are to create more ...
0
votes
1answer
107 views

How do I properly configure host server net adapters when using Hyper-V?

I am converting a number of physical servers to virtual ones, and I have a question regarding configuring the physical adapters on the host server. I am new to virtual machines, and have a nagging ...
1
vote
0answers
86 views

Destination Host Unreachable and Communications link failure when I connect to MySQL database using D2RQ library

I have a question: I have a web service which runs on a virtual machine located on a remote server with Ubuntu 12.04 operating system. Now, I want to test this Web Service and I'm using this code ...
0
votes
1answer
113 views

How to create a single image of Windows Server 2008 R2 to use on a Azure Virtual machine

I am trying to migrate from a colocation where I own the servers to Azure. I have been following this article: ...
1
vote
1answer
193 views

backup/restore/DR scenario for Azure single instance VM?

I apologize in advance - I'm not positive I'm even asking the right questions as I'm new to Azure. I currently have a single instance azure VM with one OS disk and one data disk. I'm running it with ...
-1
votes
2answers
78 views

How to specify hard disk for hadoop cluster?

I installed Hadoop on one Azure VM, and it works fine by using its OS disk. However, I attached one hard disk to my VM, and I want to know how to configure Hadoop to only use this new hard disk as its ...
1
vote
1answer
82 views

Memory Utilization Best Practices

I'm running several Linux-based VMs (vApps, actually) that have varying amounts of memory assigned to them. Some have databases, some web servers, etc. While some are using less than 40% of their ...
2
votes
2answers
2k views

Can't access Azure VM via RDP any more

I set up an Windows Server VM on Azure last year and after having not logged in for a couple of months I tried to log in recently and strangely it told me my password was incorrect. I proceeded to ...
-1
votes
1answer
601 views

How to join local computer to azure virtual server domain? [closed]

Scenario: I want to migrate my servers to cloud and retire all local servers such as DC and file server. At the same time, I wish to control the network traffic to limit the clients access to Internet ...
1
vote
3answers
2k views

Is it possible to migrate Azure VM image from one Subscription to another Subscription?

I recently captured one azure vm image in one storage account, and planning to migrate this image to another storage account under a different subscription. I used PowerShell Script to run this task, ...
0
votes
1answer
5k views

Is it possible to make Nginx listen to different ports?

I created one Nginx with one Linux Azure VM, is it possible to make nginx listen to different ports so that when I change the port number, the content would be different. I found there would be a ...
0
votes
1answer
150 views

How to start multiple Azure VM at the same time?

I'm trying to use Powershell scripts to start multiple VMs at the same time. I only know how to start one single VM or all VMs at the same time, but in my case, I only want to make change to selected ...