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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.

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2answers
514 views

Is it safe to run do-release-upgrade on a cloud VM?

I have a few Ubuntu VMs on Azure running Server 17.10 and I'm wondering if it's safe to upgrade them to 18.04.1 LTS using do-release-upgrade. If so, what precautions should I take?
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1answer
30 views

Verifying eth0 still works after adding eth1

I am using the Virtual Machine vmware with ubuntu. I've added a network adapter - eth1 and have assigned an ip address and mac address. but now that I try to connect to the internet, it doesn't work. ...
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2answers
43 views

Shared OS VM vs. environment sandboxing?

If I need N virtual machines running the same OS, this simply means I need to install these N machines and then also have to take care of their updates etc etc... Is it possible to have only one ...
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0answers
159 views

Is there a way to make VM snapshots in PROXMOX LVM storage

Acording to official docs https://pve.proxmox.com/wiki/Storage:_LVM the LVM storage option does not support VM snapshots. You need to setup Thin LVM for snapshots to work. My question is if there's a ...
1
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1answer
91 views

Single RDP session and automatic disconnect of pending session group policy not working in Windows Server 2012

Good morning, I'm working on a client's environment. The servers are all Windows Server 2012. There's a pool of virtual desktops which is used by users to connect to their virtual machines and ...
0
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1answer
33 views

VMware Windows 10 VM goes black

I have a Windows 10 VM where i wanted to reinstall VMware Tools. I removed it, restarted and then reinstalled it. After that the screen went black. I have tried things like: Restarting the VM ...
0
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2answers
37 views

Best way to secure a SQL VM when clients do not have static IPs

I have a VM running SQL in the cloud. Typically I would set up inbound rules on the SQL ports in Azure and on the VM's firewall, but my clients do not have static IP addresses to use in the rules. ...
0
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2answers
47 views

Is there any performance benefit to Bond Virtual Adapters?

I am using XenServer and wondering if there are any performance benefits to bonding two "virtual" network adapters on a virtual machine? I am certain it would benefit a bare metal server (make one ...
0
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1answer
58 views

It is possible to give access to VM in hyper-v windows server 2012 outside the server?

I have server with windows server 2012 and hyper-v. I have created VM on it, can i access this VM console from any browser? java access or something like proxmox in Linux. I just want my client ...
0
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1answer
68 views

Disable or change IPTables firewall file based

We have a server that became inaccessibel after our network supplier changed out external IP adres. The server runs ubuntu 16.04 LTS, and access to port 22 is limited to our old IP. Only ports 8080, ...
2
votes
1answer
50 views

Do Hyper-V VM snapshots grow continuously as writes are made to the HDD?

(Note that while this question is about Hyper-v specifically, I'm actually interested in a generalized VM snapshot answer, unless the specific answer for Hyper-v does not apply to such a general ...
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0answers
186 views

Vagrant ubuntu box configure keyboard layout

I am deploying a vagrant ubuntu 18.04 box, using the default bionic64 box. Installing the gui with these deb packages, via apt install: gnome language-pack-de language-pack-gnome-de even setting ...
0
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1answer
259 views

Check Azure VM data disk details through PowerShell

I am trying to get the details for Data Disk attached to the particular VM. The Main purpose is to get notified when the disk space is highly utilized. I can get the names of Data disks attached to ...
0
votes
1answer
429 views

Network access from VM to host

I am running a simple KVM-based VM on a Ubuntu host. VM is connected to a NAT virtual network. It can be accessed from the host, but cannot connect back to the host. From the VM, I can ping the host ...
0
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0answers
39 views

Is there a way that i can add previously built Virtual Machines using Hyper-v to my cloudify manager?

I found we could easily add openstack, azure, aws instances to cloudify. But is it possible to add Hyper-V virtual machines which are already in use to cloudify manager? Info- I have a dedicated ...
2
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0answers
24 views

Azure classic migration errors

We're trying to migrate a couple of classic VMs in classic vnet over to ARM ('non-classic'). I've been following the Microsoft powershell migration steps here but the migration (and validation) fails ...
0
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0answers
35 views

Understanding Standard IO usage in Azure

Hopefully the title is not too vague but never the less, I've searched through documentation/google to understand more about Azure Standard IO usage and how it's calculated, obviously to no avail. A ...
1
vote
1answer
61 views

Is it possible to pass information (e.g. updates) from hyper-v base vm to differencing vms?

Hi everybody (first post, so please don't kill me), I have a hyper-v host which contains several vms (Server 2016, W10). Right now, I have to update (e.g. windows update) every single one of them. My ...
0
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1answer
61 views

Azure Backup - Is last backup copy retained indefinitely?

If I enable Azure Backup on a VM and, after a few recovery points are saved, I disable Azure Backup, is the newest recovery point kept indefinitely, regardless of the retention policy? I saw the ...
1
vote
0answers
13 views

Can't telnet to a Virtual box guest [duplicate]

I have Server 2003 running in a Virtual Box guest VM. The host is Ubuntu 14.04. I have a mail service running in the guest. Logged into the guest and telnet localhost 110 responds with +OK POP3 ...
0
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1answer
73 views

Azure VM managent and metrics role

Is there a one built-in role that allows a user to do only the following: Start , restart and stop VM. Display VM metrics to this user. Metrics such as CPU and RAM utilization. It seems like it ...
0
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1answer
260 views

Can't change password policy on Azure VM (joined to Domain Services Domain)

We have an Azure VM (Windows Server 2012 R2) using AAD DS as the domain. I have both an O365 account in the domain (used to originally join the VM to the domain) and a local admin account on the ...
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1answer
96 views

KVM and restoring VM without the XML files [closed]

I have recently experienced a server outage that was hosting a couple VM's. This server is irreparable. I have since installed a new server with Centos 7 and installed KVM. I was able to connect and ...
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0answers
44 views

IPTables with two networks and http server blocks system updates

I have a virtual machine environment where IP 192.168.1.50 is "Real machine" that has the Firewall and its connected to router (192.168.1.1), and with virtual machines as 172.16.0.1.. My virtual ...
2
votes
2answers
1k views

ESXi 6.0 DCUI frozen, host is in not responding state

One of the ESXi hosts lost connection and entered an unresponsive state, and all of its VMs are disconnected in vSphere. However, I can RDP into the VMs, and can ping them and the host as well. SSH is ...
0
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1answer
87 views

Do we need to reboot RHEL Servers, after making changes for control-alt-delete override?

We are planning on disabling the RHEL Server reboot triggered by control-alt-delete. for which we are going to follow the Steps mentioned here. However, that link does not say whether we need to ...
0
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1answer
917 views

How to install “Minimal Ubuntu” onto virtual machine

This week Canonical released optimised variant of Ubuntu server distribution called Minimal Ubuntu. But there are no .iso files in provided images there. Is it possibile to install this distribution ...
0
votes
1answer
73 views

My VM instances on Google Cloud Platform do not work after increasing SSD size

Could you please help fix my emergent Google Cloud Platform problem? The configuration information as follow: The VM instances name is “cchatty” Machine type: n1-standard-1 (1 vCPU, 3.75 GB memory) ...
1
vote
1answer
24 views

Make domain controller automatically register IP of a replacement domain member

I have 3 VM servers in a domain. One of them is the domain controller with active directory and DNS installed. Another server is an application server. One of the requirements for that application ...
0
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0answers
54 views

VM loses LAN Connection

I've got an SBS 2011 with Hyper-V. It has 1 Server 2008 VM as Terminalserver on it. When someone starts a Web Browser or opens a link from an e-mail. All users lose connection to the VM. It doesn't ...
2
votes
0answers
51 views

Export back up copy of VM in Azure

I have set up a linux VM running Ubuntu 16 using resource manager and image from the marketplace. I use only SSE encryption since I do not need extra data drive, and OS manged disk uses SSE encryption ...
0
votes
1answer
246 views

VM resize from D4s_v3 E2s_v3?

I have created one VM in azure with Standard D4s_v3. Due to the VM usage and cost reason I want ot change the VM size from D4s_v3 to E2s_v3? is it possible to change VM size? Regards, Durga.
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0answers
11 views

Best Practice - VM for SQL server, automations and asp.net site [duplicate]

We are currently running 1 server as 2 VM. VM1: 1-4 cores - DC and file sharing VM2: 12 cores - Quickbooks, MS Sql, web-facing ASP.Net site for employees to upload documents, process clients, ...
0
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1answer
212 views

Mysql InnoDb cluster adding new instance causes exception

I have created Centos 7 VM instance on Google cloud. I installed MySql 8.0 on this. Configured all proper settings. Edited my.cnf. After finalizing my instance I created the snapshot of this instance ...
0
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0answers
23 views

FPM/FastCGI where to change the max execution time for scripts

First of all i created a stack with easyengine.io on hosted on Google Cloud => Compute Engine (VM Instance) I am running FPM/FastCGI. Can somebody tell me where to change the max execution time for ...
0
votes
2answers
157 views

Xenserver 6.5 Passtrough from HASP [USB] to Windows Server 8 SP2

Due to an accidental update on VM with Windows Server 2008 SP2, the HASP USB key is no longer recognised. The key works on my laptop, so it looks fine. I have a pool of VMs built on XenServer 6.5. The ...
0
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0answers
59 views

rsync whole VM from Azure to AWS

I am trying to move Centos 7 machine from Azure VM to AWS EC2 instance. I have some basic understanding on Linux so i need to your help in resolving what's going on here. I am using rsync in this ...
0
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0answers
13 views

How can I configure 2 Win 10 VMs on Parallels on 2 separate Mac Hosts so the VMs can communicate with each other?

I have two Macs on the same subnet. Each is running Parallels and a single Windows 10 VM. I'd like the Windows VMs to be able to communicate with each other over the network. I have also configured ...
0
votes
1answer
132 views

Google Cloud VM Windows instance wallpaper Snapshot Time:

I am managing two VM instances in Google Cloud and have a question about the Snapshot Time: field. Where is this coming from and does it mean that an actual snapshot was taken? In both cases 'gcloud ...
0
votes
1answer
25 views

Can connect to all but one file share; ping works

I'm running Windows 10 32 bit in a VirtualBox machine. I'm connected to our company's domain, and I can connect to the internet and most file shares. I can connect to our domain controller (also ...
2
votes
1answer
513 views

Mount Bootable USB using Powershell on Hyper-V Host

Unfortunately the Hyper-V manager on my local machines returns "RPC not available" so I can't see/control my VMs. But thankfully I can RDP into the Host machine! I need - please - to understand ...
2
votes
1answer
119 views

Redirect traffic from one IP address

A have a root server with 2 static IP address which are both connected to one interface (eth0 and eth0:1). Now I need to redirect all incoming traffic from one IP address to a VM on the same PC. The ...
0
votes
1answer
69 views

Can Azure metrics logging frequency/collection period be changed?

Per Azure documentation: All metrics have one-minute frequency (unless specified otherwise in a metric's definition). Also, at least for VM guest metrics, when enabled the metrics are stored in an ...
1
vote
1answer
48 views

Hyper-V Backup (CheckPoint) still occurring even though it's disabled under Integration Services

I'm having an issue where my Hyper-V Host runs the Backup (volume copy) integration service on my VM even though I disabled it. Do changes regarding integration services only take into effect after ...
0
votes
1answer
80 views

How can I restore a ColdFusion 2016 server with license key intact?

In ColdFusion 8, 10, and 11 it was possible to make a snapshot of a server running ColdFusion Enterprise and restore that snapshot with the license key intact. Just copying the install directory from ...
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votes
1answer
19 views

Setting up VM's with a SAN

I am currently in the Process of virtualizing my infrastructure setting up a SAN As well as a complete replica as a DR site. I have purchased the following Equipment (plus all other needed equipment) ...
1
vote
1answer
37 views

Virtual Machine Isolation [closed]

I am not a sysadmin, but I'm curious about what goes on behind the scenes. We have a virtual machine at work which my group logs into to do secure data processing. The OS is Windows Server 2008 R2;...
0
votes
1answer
51 views

whether configured files lost while VM instance stopping

I am using a google cloud VM instance for my client to configure a web site. Client will not use the site for the next 6 months. For reducing the bill If I stop the VM instance for a period is it ...
0
votes
1answer
234 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
98 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 ...