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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12 views

VMWare Ubuntu 14.04 not reading ram

I have a vm running Ubuntu 14.04 LTS. Everything was working fine. I allocated some more ram to it but VSphere is now saying it doesnt have any of that ram now. Vmware says the ram is unaccessed per ...
2
votes
1answer
28 views

Why do we use a OS Base Image with Docker if containers have no Guest OS?

I've just started to study Docker and there's something that's being quite confusing for me. As I've read on Docker's website a container is different from a virtual machine. As I understood a ...
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0answers
15 views

Static ips aren´t working in ubuntu virtual machines

I want to set a static ip to a ubuntu vm client and other static ip to other ubuntu vm server. Im doing this like this: sudo gedit /etc/network/interfaces Then in the ubuntu vm client file: auto ...
1
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1answer
23 views

Azure VM, All passwords changed on login

We've got an Azure VM running Server 2012 R2. I have to stress that this is NOT a classic machine. I installed server essentials yesterday and linked all the accounts to an O365 account. A by product ...
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0answers
3 views

Automation of VMM Deployment DomainJoin Error

I am in the process of making my own C# .Net Application to Automate the Deployment of a VM. I am doing pretty much the same as the Virtual Machine Manager does when you click on "Create Virtual ...
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1answer
31 views

How can I create multiple VLAN virtual interfaces using Hyper-v Manager?

I am trying to create multiple multiple VLAN virtual interfaces using Hyper-v manager on Windows 10. I do not require to create VMs. So when I start Hyper-V manager on local machine I can add new ...
1
vote
0answers
19 views

Cisco vWLC sha2 certificates not supported bug?

I currently have an app running with a Cisco virtual Wireless Lan Controller, all works fine except we get some error messages regarding SHA1 certificates, when I'm looking for SHA2 support the cisco ...
0
votes
1answer
8 views

create SMB share on a clustered vm or dedicated server

I have a cluster that consists of 2 IBM servers, 8Gbps Fibre channel based SAN and 1 storage server (IBM Storwize v7000), i run virtualization on that cluster (Win2012 Hyper-V) but also want to use ...
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0answers
19 views

Jetbrains team products + out of memory

I am trying to build an Ubuntu server 15.10 VM with all the software tooling required for software development. When I saw that Jetbrains offers various tools like: hub, youtrack, teamcity and ...
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0answers
44 views

What caused the reboot of this linux VM?

So here is the code of a normal reboot of my vm: Feb 5 00:17:46 desktopallianceada systemd[1]: Stopping Disk Manager... Feb 5 00:17:46 desktopallianceada systemd[1]: Stopping Session c10 of user ...
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0answers
19 views

How do I properly configure KVM

I have a remote dedicated server on which I have installed KVM. When trying to create my first virtual machine I am unable to ssh to the machine. I assumed that I needed another ip address so I ...
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0answers
21 views

VMware to run virtual web servers for small production environment? [closed]

I am thinking about making my own small server to experiment with, but I want to run multiple OS's with each having a web server running at the same time. Can this be accomplished using VMWare on a ...
0
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1answer
20 views

Azure VM Unwanted User-Agent Filtering/Blocking

I recently migrated our WP site to a Debian 8 VM running on Azure. Since then, we are unable to process credit card payments through the RedSys payment gateway. It seems that upon successful payment, ...
1
vote
1answer
36 views

Implications of increasing physical ram of VM

I have a Centos7 VM running under VMware and I'm considering increasing virtual memory in the Centos VM. Currently my VM has 8GB of virtual memory, 6GB of swap and using 0 swap right now. I am ...
0
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0answers
22 views

IP Address and Dom0 IP Address

What is the difference between normal IP address and Dom0 IP address? As far as I read so far, Dom0 IP is associated with VMs instances but I want to know if it there is a subtle difference here.
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votes
1answer
26 views

Is it a good a idea to create a fake raid 1 for guest on ESXi?

I have an old server with software raid and I would like to install ESXi with 2 hard disks. I have read that I can install a guest (i.e. Ubuntu Server) and add two hard disks in different datastores ...
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2answers
57 views

Azure Virtual Machine can't serve websites

I am unable to get an Azure VM running Windows Server 2012 to serve up the IIS default website from it's public static IP. Created a VM running Win Server 2012 R2 and installed web server role. ...
0
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1answer
26 views

URL incorrectly redirecting to other site hosted on same server (nginx)

I have an Ubuntu VM running nginx that I'm part way through configuring for SSL. I've defined some custom local domains that I use for development, stored in my hosts file (on the host machine, which ...
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2answers
28 views

sharing resources between virtual machines

After some extensive searching I couldn't find the answer to my question. I'm sorry if this is obvious or not, but I just need to know. I have a server with verry low resources, 2gb of ram and 2 ...
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0answers
7 views

Cisco VWLC redirect page without authentication, radius or dhcp?

I have a virtual Cisco CMX sytem for the tracking of customers in a smalland a virtual Wireless Lan Controller also from cisco, in it's webconfigure I can choose for it to redirect to a webpage we ...
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0answers
10 views

Bridged qemu machine cannot receive packets, these are dropped [migrated]

I've created virtual machine (ppc) with bridged interface (using bridge helper) on archlinux. Machine can send packet out, but cannot receive anything. I can see packets (dhcp discover,request and/or ...
0
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0answers
4 views

Hyper-V configure with internet [migrated]

I am using Hyper-V to create some Windows server 2012 R2 virtual machines. All was good until I found I could not access the internet in the virtual machine and now I am stuck. Where I am at ...
0
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1answer
17 views

azure vms aren't communicating anymore

This is very weird. I have 2 vms: a Windows 2012 SP1 VM (with AD role) and a Ubuntu Server 14.04 LTS. They share the same vnet, that is 192.168.99.x (same region, same resource group, same vnet, same ...
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votes
1answer
20 views

Azure VM Subdomain

I have an Azure VM and I've pointed it with my domain. I wish to know if it is possible to create a subdomain that points to a new site on the same VM PS - It is a Windows server 2012 and I use IIS.
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2answers
48 views

CentOS 7.2 Azure VM - MariaDB/Apache killing memory

I have an Azure VM with CentOS 7.1, Apache 2.4.6, and MariaDB 5.5. The VM has 2 cores and 3.5 GB RAM. The server is only hosting a small WordPress site with almost no traffic. For the past two days, ...
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2answers
27 views

Automate Windows update on multiple Virtual servers

hope you guys can help. I work for a tech support company that manages servers for many clients in a virtual environment. We personally host about half the clients, while the others have onsite ...
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0answers
5 views

VBoxManage creating file in wrong directory [migrated]

Hey there I'm using vagrant to set up some test boxes however I don't want any of the files to be on my main disk. I've changed $Vagrant_Home to be off disk however VBoxManage is still creating files ...
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votes
2answers
17 views

Nginx - Caching/processing of data when uploading a file over a reverse proxy

I am running multiple Virtual Machines (Proxmox) which each have limited storage amounts. As I am also running a File-Uploading service, I am interested if a Reverse Proxy needs more than 30GB of ...
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0answers
9 views

Access Xenserver virtual machine in lan

I have created two virtual machines from xen server. both vm are Ubuntu server. I have hosted a application in one of the vm. It works fine. But I dont know how to access that application from other ...
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0answers
59 views

XenServer 6.2 VM Performance (SSD, RAID-10, Quad-core)

Greetings everyone :) My configuration is the following: HP C3000 tower enclosure 1st HP Proliant BL460 G1 quad core xeon 2.66GHz 12MB L2 cache, 24GB RAM, BIOS I15 5/2/2011 partnered with HP ...
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0answers
22 views

Linux / Proxmox KVM machine boots unreliable after migrating to other server

I have a KVM VM running on a Proxmox 2.3 server. The Guest OS inside the KVM machine is an Ubuntu 12.04 LTS 64 bit. I took a consistent backup of the VM (Proxmox VE backup function) and restored the ...
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2answers
39 views

Azure VM instance IP firewall

I assigned an instance-level IP address to my Azure VM. I then configured the SSH "endpoint" from the Azure portal and defined a deny-all policy. However, this policy seems to only affect the cloud ...
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1answer
35 views

HTTP & HTTPS Apache redirect to internal IP Virtual Machine

Here's my basic setup: Router forwarding port's 80 and 443 to Ubuntu Server 14.04 running apache. Works great. Running several virtual machines (QEMU/KVM) on Ubuntu server. VM's are in bridged mode ...
0
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1answer
32 views

Cloning Virtual Machine On Azure, keeping existing

There doesn't seem to be a straight answer online about this. I have an existing Virtual Machine on Azure and I want to clone it to another region in case my existing server goes down. It needs to be ...
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votes
0answers
3 views

How to reconfigure NAT servers so they are exposed? [migrated]

Here is what I have: Live HTTP server (104.x.x.x) DD-WRT'd wireless router (192.168.2.1 / 8.8.8.8 DNS server) Win 8 Notebook PC (192.168.2.100) VMWare BIND DNS server (192.168.3.108 / NAT on ...
0
votes
2answers
36 views

How to migrate a Hyper-V VM from a Desktop PC to a Hyper-V cluster?

Migrating a VM with VMware is easy, from a Workstation to vSphere cluster it can be done with a VMware Converter. I have little experience with Hyper-V though. There is a VM on a Hyper-V on Windows ...
0
votes
1answer
24 views

Azure : VM fails to connect after being promoted as domain controller

I have few VMs provisioned on Azure, one of them acts as a read only domain controller replicating from a in house domain controller through site-to-site VPN. The problem is every time I create a VM, ...
2
votes
2answers
45 views

Azure Red Hat VM

I see lots of stuff in the news about Red Hat partnering with MS Azure, and articles seem to indicate you can fire up a Red Hat VM on Azure now. But when I go to create a new VM, I can't find Red Hat ...
0
votes
1answer
21 views

Azure custom CentOS Image shows “Running (provisioning timed out)”

I created a VM using the standard CentOS 7.1 image in the Azure gallery. I generalized it and captured it as a base image for future deployments. However, once I spin up a VM using this image, the ...
0
votes
1answer
42 views

Forgot to run Sysprep before migrating a VM to a new Azure account

I've been tasked with migrating our VMs from our old Azure Account to our new one. I knew nothing about anything when I started the process a few days ago. I decided the best thing to do was take it ...
0
votes
1answer
140 views

can't Map Network Drive on Windows 7 desktop to Azure VM Windows server 2012 drive C

On Azure VM I set C: properties to share C for my account (username and pw on both my Windows 7 desktop and my Azure Windows VM). Then, on Windows 7 desktop I do Map Network Driver setting Folder: to ...
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votes
3answers
62 views

Replace public DNS with domain on linux server [closed]

I have a web app running on apache2 at my Ubuntu linux AWS virtual machine, which is currently accessible by an internal amazon sub-domain (like 'ec2-99-99-999-9999.compute-1.amazonaws.com:8080). I ...
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votes
1answer
32 views

Retrieve host info from a VM [closed]

I know we are able to know if we are in a virtual machine. But i'm wondering if we can gether informations about host from a vm (ip, mac, os, ...). Another question: if we do an http request from the ...
0
votes
2answers
36 views

Can't install Solaris 10 on XenServer 6.5 VM

I have XenServer 6.5 installed on a server, and i have been trying to install Solaris 10 on a VM, it just get into the boot screen of the installation ISO, i proceed with ENTER and then this message ...
0
votes
4answers
69 views

Azure : Script to start or shut down multiple VMs

Is it possible to write and save some kind of script that launches azure powershell, then authenticate azure subscription then start/shutdown multiple VMs in one step? I have 5 VMs that I use ...
2
votes
0answers
19 views

Converting virtual drives from .vmdk to .vhdx produces huge files

I'm using powershell and ConvertTo-MvmcVirtualHardDisk cmdlet to convert .vmdk disks into .vhdx disks to be able to run them in our hyper-v environment. For some reason, the .vhdx files produced are ...
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0answers
9 views

Error create VM in Glance in centos-7

I'm facing an issue while installing a VM in Glance-Openstack. Here it is [root@parkst ~(keystone)]# virt-install \ --name centos7 \ --ram 2048 \ --disk path=/var/kvm/images/centos7.img,format=qcow2 ...
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0answers
27 views

Authentication error in openStack's Horizon dashboard

I'm trying to setup an openStack controller from a VirtualBox VM. My VirtualBox host is Windows 10 and the guest is Ubuntu Server 14. The guest should (someday) function as an openStack controller, ...
0
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1answer
34 views

Azure Windows Virtual Machine with Different Language Version

I am trying to figure out how to create a new VM in Azure using and Italian version of Windows. I was successfully able to create an English VM and install the Italian language pack as this question ...
0
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1answer
50 views

FileZilla FTPS on Azure VM [duplicate]

I'm looking for how to get FTPS working properly via FileZilla Server on an Azure VM running Windows 2012. I've opened port 990 and configured FTP over TLS in FileZilla. I have opened port 990 in ...