Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [virtual-machines]

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.

0
votes
1answer
245 views

Checking google zone usage per regions?

I have been having issues since the last few days starting a middle size VM on google cloud with an error telling me the zones downs have enough resources, and to try another one. Before I try ...
0
votes
1answer
99 views

CustomScriptExtension on Azure with SQL Server Image not downloading the file because of already used Sequence Number from a Golden Image

I'm trying to deploy a Windows SQL Server on Azure and running a script on it using the CustomScriptExtension resource. I've been using CustomScriptExtension successfully when deploying Windows ...
8
votes
4answers
268 views

issue when trying migration via Microsoft Virtual Machine Converter

I want to migrate my Esxi VM from on promise to Azure cloud. I've found solution which provides it to me. Microsoft Virtual Machine Converter, provides migrating to Azure Cloud. During migration ...
1
vote
0answers
60 views

SQL Server outbound IP address inconsistency in Azure VM

I have this setup: Azure VM (B-series) Static public IP SQL Server running outside of Azure, with IP whitelisting on the firewall set tot he public static IP of the Azure VM Two ASP.NET apps that ...
1
vote
0answers
45 views

How to Change the network adapter setting of a virtual machine running Win7 on a Xen Server?

I have a Xen server running on a linux debian, the Xen server runs some virtual machines that are service servers (Domain, Antivirus, Biostart, etc.) but there is one with Win7 that appears with the ...
0
votes
0answers
884 views

Apache is not serving static files from correct directory

I am actually not sure if the title of the topic is actually the source of my issue but there are serious indications for this. I am not an expert in application servers such as apache so any help is ...
0
votes
0answers
114 views

Access RabbitMQ using floating IP associated with the VM

I have a virtual machine (VM) running on OpenStack, on which I installed OpenStack using Packstack. I associated a floating IP with that VM. In OpenStack, I configured the ingress access rules for ...
0
votes
0answers
49 views

Unable to log into server using Hyper-V Manager

I am running Windows 10 on my client and the "headless" version of Hyper-V 2016 on my server. I am able to remote in to the server and run Powershell on the server. My network connections on both host ...
0
votes
1answer
294 views

Setting a root password in an OVA and making it configurable

I have this VM and it is always created with a default root password say "RootPassword55". Now, I'd like to configure it so that the user will have to provide a new password on initial login. I'm ...
0
votes
0answers
203 views

virtual machine manager kvm NAT connection

At one time it worked - came back to project and nat not working. Suggestions on correct direction to troubleshoot in? XP guest can ping linux host C:\Doccuments and Settings\D>ping 192.168.122.1 ...
3
votes
1answer
80 views

How to prevent relative time shift after restoring a snapshot in Parallels?

I am working with a web-based app on an Ubuntu test/development system running in Parallels. At specific dates and times (taken from the system time) some events happen and things are changed in the ...
-1
votes
1answer
34 views

How to create (or use the existing) database on an SQL 2017 deployed via Azure VM?

Please note the question is about the SQL 2017 that comes inside an Azure VM, not the Azure Databases. Basically, I deployed an Azure VM with SQL 2017 Enterprise installed on it already, by MS. Now, ...
0
votes
0answers
10 views

VM using hostname from deleted hosts entry on host when resolving IP

Currently doing some web development. Local box has a wordpress instance running in Docker which is available on localhost. I had put a URL in my hosts file, let's say it was "site.test." I have a ...
2
votes
1answer
5k views

How to share a storage between multiple VMs using VMWare ESXi and VSphere?

I have two application servers running in a active/active cluster within a VMWare ESXi (5.5, upgrade to 6.5 in near future) virtual host running VSphere. The application needs a shared, high ...
0
votes
1answer
215 views

kvmtool: guest OS fails: mounting /dev/vda on /root failed: No such device

I am trying to load a guest Ubuntu using kvmtool. For this I am running following command. sudo ./lkvm run --disk ~/Downloads/ubuntu-core-16-amd64.img --kernel ~/kvmtool/guest_linux_kernel/linux-4.13/...
0
votes
1answer
387 views

How to eject CD/DVD of KVM-based VM with `qm set`?

I am using Proxmox VE 4.4 and I am puzzled how to eject a CD/DVD drive that is currently configured. Assume that the ID of the guest VM is set as the environment variable vmid. Currently the ...
2
votes
1answer
353 views

Clock drifts on virtual machine, nothing helps

I have very rapid time drifts on vmware. -241587 20:38 -241587 20:39 -241587 20:40 -241587 20:41 -241587 20:42 -0.014 20:02 -0.025 20:03 -0.056 20:04 -0.093 20:05 -0.093 20:06 -68996. 20:07 -68996. ...
4
votes
0answers
186 views

How to get /64 as prefix length when using DHCPv6 and radvd?

For our networking course we were asked to set up a DHCPv6 server in a virtual machine. I choose to work on a virtual machine(on VMware) running Ubuntu Desktop 16.04 and Lubuntu 14.04 as test client ...
0
votes
1answer
28 views

VM VPN failover

I have a VPN connection from Network1, Host A (VM) to Network2, Host B and Host C. An application in the VM(Host A) is statically configured to communicate with Host B on Network2, i want Host A(...
1
vote
1answer
642 views

Questions about performance, NVMe drives and virtual machines

I currently have a 4770K with Samsung 850 Evo running Ubuntu 16.04. I create and manage VMs using vagrant with Virtual Box. I recreate VMs frequently and right now, it takes roughly 36 seconds to spin ...
0
votes
1answer
49 views

Cluster using virtual machine software with 2 workstations

I want to do a benchmark between databases (MySQL Cluster, HBase and Cassandra). I need 8 nodes. I have 2 workstations Dual-processor Z600: 1. workstation1: 16 core - 16 Go RAM 2. workstation2: 8 ...
0
votes
0answers
50 views

Google Cloud Platform - Cannot extend memory of instance

I have a GCP instance which is currently a 16vCPU high-mem (104GB), and I would like to extend the memory. I am using 2 GPUs and unfortunately there is a limit on using GPUs with instances larger ...
-2
votes
1answer
28 views

Does virtual machine consume ram when its turned off [closed]

I have a virtual box virtal machine on windows 7 i installed windows xp on it and i set it to use 2gb of ram and my pc has 4gb of ram so i wonder does it use my ram when the machine is off
0
votes
0answers
44 views

OpenStack with esxi as a storage service, Glassfish inside?

I have a 2 esxi 5.5 and vCenter with openstack and many ISCSI servers, the main idea is to store user files. Users are using JEE WebApp or android app to store files, then a Rest WEBAPI to comminucate ...
0
votes
0answers
94 views

How to configure virtualbox within Amazon EC2 Ubuntu VPS?

I need to configure a windows 7 client PC for application tests on Amazon EC2 Ubuntu Server. I have ready Virtualbox images however none of them boots-up. Also I tried to create a fresh windows7 ...
1
vote
1answer
89 views

Set VLAN mode on only one VNIC

I'm setting up a Sophos XG virtual appliance on Hyper-V Server 2016 (Core) in a VLAN-ed network so the VLAN modes of the VNICs need to be configured so that the LAN interface will be a trunk port and ...
1
vote
1answer
653 views

ESXi 6.7 any settings I make are disabled after reboot, also passthrough not working

Noticing none of the settings in an ESXi 6.7 installation are surviving reboot. I created the USB with a stock installation ISO like always, downloaded from the VMWare website. Just used the USB key ...
1
vote
1answer
532 views

Non-ECC RAM for virtualization?

I'm on a quest of building a virtualization server. However, I was asking myself a question: should I stick with non-ECC RAM for this server or not? This because I found a Xeon CPU that falls in the ...
0
votes
1answer
45 views

Is It possible to split a reserved VM on Azure?

Is it possible to split a reserved VM to 2 VMs with half specs of original reserved VM? I know it's possible on AWS EC2 but they should from within the same family without cost changing. Example; ...
0
votes
1answer
182 views

Chef bootstrap error - 401 unauthorized

I am trying to set up a Chef node using Vagrant, but running in to an error with the bootstrap command. I am following the tutorial on learn.chef.io My Chef server is setup on EC2, and works great. I ...
0
votes
2answers
101 views

Accessing VM host without ssh

Issue: A RHEL VM host is not accessible via ssh. Root cause of the issue: Accidentally a shared library zlib is removed from the rpm package of the machine. Making it to fail all needed commands such ...
0
votes
1answer
465 views

software raids and kvm

I have 4 drives for data storage, that i want to arrange in a software raid 10 (hardware raid is no option). I was asked to set all things up in a vm, so it is easier to change the hardware, if it is ...
3
votes
1answer
4k views

Hyper-V VM stuck in “Saved” state, cannot power or have savestate deleted

I have a server with WinSrv 2016 DC installed for Hyper-V virtualization purposes. After graceful shutdown purposed for testing the UPS, three VMs won't start. The Hyper-V manager shows that the VM'...
-3
votes
1answer
33 views

VirtaulMachine Software for development environment? [closed]

Which virtual machine software is recommended (except virtual box)? I need it on my mac to run Ubuntu server for development environment? Wish to share files from server so that I can work on my ...
1
vote
3answers
2k views

VirtualBox and Windows 10: can't connect to a server hosted on VirtualBox

Not a duplicate - I searched a lot and tried to use suggestions from many articles, including answers to this question: VirtualBox: How to set up networking so both host and guest can access internet ...
0
votes
0answers
44 views

How do share an IP address with a VM and it's host

On a Linux machine I am trying to get a VM to handle ipsec packets from a particular IP address and have it's host handle the rest. Lets say the Host has IP address 1.1.1.1. It is a production ...
3
votes
2answers
209 views

Can the number of CPU cores be reduced for a CentOS virtual machine?

Our VMware admins tell me that we can add additional virtual CPU cores to our VM's, but they tell me that we can't reduce the number of virtual CPU cores. One recently stated, "CPU on the other hand ...
0
votes
2answers
20 views

How to set up a Server 2016 VM as if it's in Australia

To help troubleshoot some issues (mainly around database collation and time zone conversions), we need a VM that think's it's located in Australia. The primary goal is to have Latin1_General_CI_AS be ...
0
votes
1answer
110 views

Specifying a MAC address of a new virtual machine instance on Google Cloud

We are planning to move a Windows 2012 Server to Google Cloud, but we have one issue. We are going to reinstall on this server an application that uses the server’s MAC address for its licensing so we ...
-1
votes
1answer
28 views

Does Vagrant introduce another layer between host OS and guest OS

If I use Vagrant, does it introduce another layer of resource users inserting itself between host OS and VM? Does it always run between host OS and VMWare/Vbox? Should I provide for extra RAM / CPU if ...
-1
votes
2answers
75 views

VSwitch confused with VMs in same subnet but on different VLANs

In a multi-tenant virtualised LAN environment it is likely that different customers will have VMs in the same subnet (eg 192.168.1.0/24) and be hosted on a single virtual server environment. The ...
0
votes
0answers
15 views

vmware update .ova file

I got an .ova file, imported it into my vmware workstation environment, edited network interfaces, adjusted memory size and the number of cpus. Two months later I received a slightly updated .ova ...
3
votes
4answers
179 views

Lab of virtual computers connected to virtual switch with port forwarding

I have a lab in which I have three computers connected to a switch. two of the switch's ports are mirrored to a third port so that all the communication between the two computers is mirrored to the ...
1
vote
1answer
10k views

Stopping and starting an Azure VM instance from PowerShell running on an external server

I'm setting up an Azure VM as a warm backup server for disaster recovery and I'd like to power up and down the VM from the production server automatically a few times a day so some data can be synced. ...
0
votes
1answer
47 views

Does Azure Accelerated Networking also include HTTP traffic, downloads, etc

Does the new Azure Accelerated Networking on NICs increase the speed of HTTP requests? I keep reading it increases the speed but it looks like between VM in Azure, like file transfers.
1
vote
1answer
116 views

starting Virtual Machine on ESXi Host 6.5 standalone host fails

I am having an issue with my iscsi-datastore. My Virtual Machines are making a backup on second HD connected to each Virtual machine. This HDs are located on iscsi-datastore. In windows, Veeam does ...
1
vote
0answers
25 views

mounting hard drive that is passed to VM

I'm running proxmox and I was previously passing a hard drive (ext4 data drive) as iSCSI to a linux VM. Everything was good. Then I decided to pass the PCI SATA controller to the VM instead of just ...
4
votes
1answer
75 views

Advantage of installing VMs on dedicated vs native?

If I were to buy a dedicated server, what is the advantage of installing 4 VMs for 4 services (mail, Web, Database, Cache/other) vs installing everything on the dedicated server? Or is it more for ...
1
vote
2answers
2k views

Hyper V Create Virtual Machine Operation Failed

I am trying to use Hyper-V to create a new virtual machine. To test it out I downloaded an Ubuntu 16.04 iso and headed on into the Hyper-V manager to create an instance. I have tried both Quick Create ...
2
votes
6answers
3k views

Iptables didnt restore the new rules after reboot

i have tried many similar question like below, in my case i used VM with Debian OS in virtual box: How to start/stop iptables on Ubuntu? https://unix.stackexchange.com/questions/52376/why-do-iptables-...