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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Cannot RDP To Server - Local Admin Password Expired/Reset Fixed Issue?

I received reports that users trying to RDP to an Azure Win Server 2019 VM via JIT or any other means were not able to. This used to work previously. In addition, users RDP using they own user account ...
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USRP N210 on a vmware debian machine, connecting via an ethenet to USB adapter

For a professional project, I must fully automate a process which involves a GNURadio python flow played on an USRP N210. In order to acess the USRP, I installed a VMWare Debian machine on a Windows ...
lucas auscher's user avatar
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Unable to SSH over proxycommand over multiple servers

I have a jump server (server1) which on a private network where I want to use as a jump server to access other network resource such as other servers. Server1 holds required ssh key files for other ...
Rubans's user avatar
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getting error with curl command in Ubuntu

Below I am having these issues with all my VMs. I am unable to curl from my VMS and subsequently having issues with another program. host OS is ubuntu 20.04 and the guest is Centos 7 see error message ...
Rick's user avatar
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Does VM machine can replace physical machine,

We have 254 Physical servers when all machines are DELL servers R740. servers are part of Hadoop cluster. most of them are holding HDFS filesystem and data node & node manager services, part of ...
King David's user avatar
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2 answers
163 views

Using host loopback device into VMs

While deciding what IP address to assign to a local VM a question arose into my mind: why can't I just assign an address of the 127.0.0.0/8 net (so I can avoid any kind of IP clashing)? After all, it ...
Mega-X's user avatar
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Error creating Windows virtual machine on Google Cloud: Not included with the free trial

I'm trying to create a virtual machine on Google Cloud using the following command: gcloud compute instances create my-server-1 \ --zone=europe-west3-b \ --machine-type=n1-standard-16 \ --...
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The IO operation at logical block address 0x1458a30a for Disk 0 (PDO name: \Device\00000037) was retried - Hyper-v virtual machine errors

I'm encountering an issue where I have a physical server PowerEdge R740 and I have a hyper-v server where I host multiple machines, all these machines I've been seeing the errors: The IO operation at ...
Kim's user avatar
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nftables: VM to VM Communication over Host IP

I have the following situation: A Debian Linux host with multiple VMs running on it. One VM is set up as a mail server. nftables on the host redirects the mail traffic from the world to the mail VM ...
jb_alvarado's user avatar
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Quota restriction error when attempting to create a GCE image

I am trying to create a GCE image from an VMDK file but I am getting a quota error. None of the quotas on my quota limit page are at or near 100%. Which quota or restriction am I hitting here and why? ...
triatic's user avatar
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2 Azure VM Servers from the same region cannot communicate with each other

I have 2 Azure VM Windows Datacenter 2019 OS, that are in the same Region and are connected via VNET Peering but still cannot see or access each other, I tried turning off the Firewall from both VMs ...
Terrence McGinnis's user avatar
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How to Auto-Start and Stop a VM with Remote Connect/Disconnect?

Is there a way to simply connect to VM without going to server website to start it but instead to instantly start it by maybe when remote connection is requested, stopping the server is easy enough by ...
Healbeanmen's user avatar
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Configuring Automatic Start of Azure Virtual Machine upon Remote Desktop Login

We have created an Azure virtual machine 'Standard NV12ads A10 v5' with Windows 10 as the operating system. In order to reduce costs, we would like to find a way to have the machine powered on only ...
El_Merendero's user avatar
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How to enable / disable VRDP access to VirtualBox VM regardless of state

In the documentation https://www.virtualbox.org/manual/ch07.html they tell you that you can use $ VBoxManage modifyvm VM-name --vrde on but that only works if the VM is off. Can it be done while the ...
Rub's user avatar
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Pass requests for specified hosts throw VM

I have VPN that restrict all internet except inner resources. I don't like it and i want to install VM, connect it to VPN and redirect all requests for specified hosts to VM and get back answer. Is ...
Алексей Емельянов's user avatar
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Am I likely to experience less Azure Spot VM instance evictions by creating it in a region that has a large time difference from where it's used?

I am creating a spot VM to be used in offices located in New York. If I choose India as the region, will the time difference between the two regions help reduce the spot evictions because I can expect ...
PrashanD's user avatar
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What is this message and how do I stop it from appearing?

I'm running Ubuntu Server 22.04.2 on Oracle Virtual Box 7.0.8 r156879 that's on a Windows 10 Machine. Every time I start the VM I get this message that's in the image. How do I stop this from ...
Norman's user avatar
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Unable to SSH to GCP VM after reboot

I used to do the remote development via VS code. I created SSH key on my local Windows 10 and added the public key to the VM instance. Everything was fine for a week. But my VS Code suddenly show ...
Philip's user avatar
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Best Option for Compatibility of "Linux Journaling File System" and "Volume Manager" with Microsoft Azure VMs

I'm in the process of setting up a Ubuntu Desktop VM on a bare metal server using VMware vSphere. Once the development process is complete, I plan to transfer the VM to Microsoft Azure VM ...
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Migrating 9 virtual machines to 1 server or pc

I have a build system set up which has 5 pcs and that has a total of 9 virtual machines using Hyper-V. I want to update this infrastructure and cut out the need for 5 physical pcs. Is there a way to ...
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How to automatically virtually boot partition windows 11 inside from windows server 2022 through VM or VMware or hyper-V?

Question : How to automatically virtually boot partition windows 11 inside from windows server 2019 through VM or VMware? In my small coaching institue computer lab with 25pc. 15 pc are Independet ...
Androidquery's user avatar
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Sizing and moving /var/log to meet DISA STIG

RHEL 8 DISA has a requirement that /var/log must be on a separate partition. The finding is due to that the main partition might fill up. I am trying to harden VMs in an Azure Cloud Environment. Since ...
baw's user avatar
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Website Hosting Error after Google Cloud Trial Ended

Issue: My website has a hosting error. It was working while I was using a free trial with google cloud and when the trial ended settings changed and the website hasn't been working since. I'm using a ...
Brian Tran's user avatar
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hyper-v 2016 host stuck - vm's not responding

i have a windows 2016 host, with 3 vm's on it. it was working fine from the day it was installed. 4 months ago, i added another host, and started replicating it, with veeam and hyper-v replication. ...
inadmin's user avatar
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Public IP on KVM VMs and DNS setup on host machine

I'm using KVM to create two VMs for hosting NMS servers for the company's devices. I want to manually assign a public ip to both VMs and the host machine (Ubuntu 22.04 desktop [although I mostly use ...
Giorgos Amoiridis's user avatar
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DNS server bind9 + apache2 on Ubuntu Server VM + localhost problems connectivity

Hello guys :) i'm trying to resolve some problems with my DNS server + apache2 and local machine. I've got Ubuntu server on VirtualBox with NAT network adapter. I tried to create DNS server for my ...
Fenh Rir's user avatar
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1k views

How to get access virtual servers from host machine by domain?

I have virtual machine Ubuntu on Windows host machine. On VM there is nginx server with virtual server site.com. VM IP is 127.0.1.1. In VM I edit /etc/hosts: 127.0.1.1 site.com www.site.com And now I ...
m1know's user avatar
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Cannot restart VM instance in Google Cloud

my website which I host on a VM in Google Cloud was unresponsive, so I stopped and tried to restart the VM. Stopping didn't work without a hard stop. Restarting doesn't work either. "A g1-small ...
David Astor's user avatar
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Requested operation is not valid: domain is not running

My virsh list --all Id Name State ---------------------------------------- - k3s-1-192.168.122.213 shut off - k3s-2-192.168.122.214 shut off - k3s-3-192.168.122....
MikiBelavista's user avatar
2 votes
1 answer
173 views

How to Root volume partition without losing the data

We have this scenario : I to increase the disk space of one of our VM, Disk details : root@Test-01:~# blkid /dev/vda2: UUID="0eae0eb4-92ed-45ec-aa99-6d606f17e70a" TYPE="swap" ...
sam23's user avatar
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1 vote
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Virtual machines not working with 802.1X - Linux Bridge

I am experimenting 802.1X in my home lab. I have most stuff working but one problem I have is with virtual machines not being able to authentication onto the network using 802.1X. There is very little ...
Tipex's user avatar
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No layer 2 traffic in an Open vSwitch bridge

I see no traffic in layer 2 and above in an OVS bridge, but I do see layer 1 traffic. I have the following setup: I have created a Linux VirtualBox VM with three adapters: NAT with port forwarding the ...
falhumai96's user avatar
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When connecting to my server through my domain, I get connection error. however, on a VPN it connects just fine [closed]

New poster here so unsure if this is the correct stack exchange. But basically, I use NPM (Nginx Proxy Manager) to direct internet traffic to various VMs running on my hub server running proxmox. ...
Ambient Skai's user avatar
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322 views

Why does EC2 allow QEMU/KVM 32 bit VMs to run, but not 64 bit?

The setup is EC2 with 8 cores and 32GBs of memory running Ubuntu 22.04 Desktop. Virtual Machine Manager has been installed. I downloaded 32 bit and 64 bit Windows 10. I'm able to create a VM using 32 ...
Bob Smith's user avatar
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1 answer
2k views

VS Code Remote Development giving back error

I'm trying to connect my Vs code using SSH extension to my Debian VM on azure. I tried running the SSH connection on terminal and it's working fine ssh -i Desktop/Emdad/testing/magento-testing-key.pem ...
Adnane Rbt's user avatar
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99 views

Does Linux tap interface support tcp segmentation on ipip network traffic

Recently I experienced an issue on running kubernetes slaves on a VM with calico ipip tunnel as the network connection protocol to interconnect the kubernetes nodes. The current symptom (with the ...
lordofire's user avatar
1 vote
1 answer
219 views

Is it possible to mount an .iso file to the CD/DVD device of an VMware Workstation using command line?

I'm on Windows and using VMware Workstation as my virtualization tool. Normally, if I want to mount an .iso file to my guest VM, I can do it through the GUI: I want to know if it's possible to do the ...
Fajela Tajkiya's user avatar
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55 views

How to Add vip to vps?

I have a ubuntu vps and it is accissble by its ip. I want to add a vip to it which let clients connect to it by this vip from internet. I have a floating ip from other subnet and it is added to my vps ...
Ehsan Hosseini's user avatar
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1k views

How to find out why a specific File is locked on my ESXI Server

I have a broken VM on my ESXi Server, after looking for the reason the VM isn't starting I found 4 files locked for some reason even when the VM isn't powered on. When I try to use "...
Alex von B's user avatar
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0 answers
84 views

Vagrant VM lost port connection to host machine

I'm duplicating my question from superuser, but I want to know why it doesn't work. Let me explain, I have a server on Ubuntu 22 where I have MongoDB running. In this server I created a vagrant vm ...
Felix's user avatar
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Memory and CPU requirements for Samba server on a virtual linux machine [duplicate]

I want to set up a samba server on a VM in a cloud, for up to 50 clients. What size of VM would I need in terms of RAM, CPU and disk space? The OS would either be CentOS or Ubuntu. This is not a ...
Michael's user avatar
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6 votes
1 answer
2k views

Does installing NTP mean I'm installing an NTP server?

Reading this: What are the limits of running NTP servers in virtual machines? (2010) And this: https://github.com/geerlingguy/ansible-role-ntp I'm not sure what exactly I'm installing. Especially if I'...
KoenDG's user avatar
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230 views

Communicating with VM on remote host (How to configure routing)

I am running an Ubuntu 20.04 LTS Focal Server and am tying to stand up VMs on the server using Multipass. I am able to successfully launch VMs and can ssh to them from the server. However I am unable ...
klog's user avatar
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1 answer
191 views

Unable to change "on host maintenance" option for an instance template on GCP

I've been using instance templates for Instance Groups, and I never had to go to "Advanced Options" because everything was working as expected. But today, while creating a new instance group ...
Hasnain's user avatar
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1 answer
545 views

With GCloud CLI -- how to list all instances associated with a particular schedule (i.e. resource-policy)?

Here is a picture of the WebUI for GCP, showing an "instance schedule" that has 3 instances currently associated with it: How can I list those same 3 instances using the GCloud CLI? I found ...
CrashNeb's user avatar
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Azure compute gallery sysprep issues

I am trying to update an Azure Compute Gallery version but it's not working properly. The process I am following is as follows: Deploy the old version from the Compute Gallery to a new VM and start. ...
Ganners's user avatar
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151 views

multipass list failed: failed to determine IP address

When I run multipass list I am getting: list failed: failed to determine IP address. sudo journalctl -u snap.lxd.daemon -n 300 lxd.daemon[3050]: time="2023-04-02T17:03:10-03:00" level=...
Raul Cejas's user avatar
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Can you use virsh to reset vm id sequence? [duplicate]

Question in regards to "Id" for running VMs, using virsh running local Qemu VMs. command virsh list will bring up a list of the current running VMs defined, eg,  Id Name State  --------------...
account404's user avatar
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214 views

multipass no running after restart service

multipass is not running: abr 02 21:44:21 raul-MAX-L5 dnsmasq[7213]: failed to create listening socket for 10.209.23.1: Address already in use abr 02 21:44:21 raul-MAX-L5 dnsmasq[7213]: FAILED to ...
Raul Cejas's user avatar
0 votes
1 answer
286 views

Internet-facing port 443 in Azure - security concerns

I want to deploy a microservice on Azure Ubuntu VM using one of following stacks: docker-compose/AKS using Traeffic as reverse proxy. I'm looking for cheapest but reasonable in terms of security ...
rethon012's user avatar

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