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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Need help regarding NFS shares permissions
I recently switched to using Proxmox as my OS of choice from OMV as the main OS and running a bunch of docker containers on the same host. I installed OMV (OpenMediaVault) inside a VM. I passed ...
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Possible to move VM with a dedicated drive to a bare metal server?
I have several VMs running on Proxmox, each with a dedicated SSD. I need to move each one to it's own bare metal server. Would it be as simple as removing the drive and placing it in the new server, ...
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Podman (or docker) running a MySQL container and a shared data directory
I am running a Ubuntu 20.04.5 LTS virtual machine for my development environment. In the past I have run multiple VM's to host databases, web servers, etc, as I need them for projects. So in short,
I ...
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Restart multiple Azure VMSS with time shedule with Powershell Script
I have multiple windows and Linux VMSS machines in azure, I need to recreate the pods, particularly with the windows machine after x days of creation.
I need to implement it with help of Powershell ...
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How do I assign a KVM guest / virtual machine one of my public IPs?
I'm running Ubuntu 22.04.1 LTS and I have a subset of /29 (5 usuable IPs). I currently have my host using 1 of those IPs.
I want to setup a KVM guest to be assigned one of the available IPs and be ...
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971
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Is there a simple way in Azure to redirect all HTTP(S) requests to a "server down" status page?
I have a web server (Windows/IIS) hosting various web applications running as a VM on Azure.
Now, I'll need to do some maintenance on the web server, which will involve shutting down and reconfiguring ...
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113
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Ubuntu on Azure VM suddenly unable to connect out to the internet but can still serve incoming requests - how to monitor this?
I have an Azure VM running on Ubuntu and it's a production server.
Sometime after 26th August 2022, it was unable to reach out to the internet. Even though it can still serve incoming requests.
I was ...
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438
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Host unreachable from a specific host
I'm encountering a weird issue where connections from one VM (A) to another VM (B) systematically time out, in both ways. Symptoms:
ping A from B hangs (as well as anything else I have tried such as ...
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0
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Restoring a Windows VM automatically in AWS
We have a Windows 2012 R2 VM called test01 in AWS and it's used for automatic tests. There is another server which connects to the test VM for running some tests. Sometimes the tests mess up the VM.
I'...
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Changing the disk type of vsphere VM using Rest API
I am looking for a way to convert my Vsphere VM disk type using REST API calls, like "Dependent" and "Independent-Nonpersistent".
i was searching in the documentation for Sphere 6....
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Why a E2 VM instance is set for my Google Cloud set up?
For a bit of context, I'm an solo app developper, I use google cloud (Firebase) for my app back end. I have cloud functions running and because I need a static IP adress from some of them, I have set ...
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KVM Networking - assign IP to each VM by outside DHCP
I am new to KVM and am having a problem with setting up the networking. I want each VM to get its IPs assigned by the network's DHCP, not the internal DHCP that the KVM keeps trying to set up. In ...
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1k
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How to make two linux VMs to communicate each other
I have Dell laptop with Windows 11 OS is running. I want to run two light weight Linux machines as VM on top of it so that I did following action items.
I installed ubuntu 20.04 via WSL 2. Its server ...
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What are the usecases and benefits of using KubeVirt
I am trying to explore a bit about KubeVirt (https://kubevirt.io/) which is an open-source sandbox project of CNCF. KubeVirt help in provisioning virtual machines inside a Kubernetes cluster along ...
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How to connect to VMs on VMware ESXi using physical connections
My site is using the V sphere client to manage the VM, and there is a KVM switch attached to the hosts(VMware ESXi, 7.0.2, 17867351). I'm wondering if I can use the KVM switch to access the VMs ...
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Both C and D drives behave as non-persistent, even though i have set C drive as "non-persistent" and D drive as "Persistent"
Is it the disk, which behaves as persistent and non persistent or the VM?
I have a VM on my vsphere with two disk drives ( C and D ), Both Drives are marked as THIN PROVISIONED. this machine is being ...
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How to set a time zone for ESXi VM?
I have several VMs that are heavily dependent on local time to start some services, and I want them to instantly have exact time at the moment of them starting. The issue is, there are both Windows ...
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2
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1k
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Google Cloud SSH suddenly having network problems
I was about to upload something and restart some apps on my VM, I got to the phase of Transfering SSH keys, and after that, I got the following error: Connection Failed: You cannot connect to the VM ...
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1
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feedback on HDD speeds for a HP Proliant ML110 Gen10 server
I have a RAID 1+0 array in a HP Proliant ML110 Gen10 server with 4 x 7200RPM 2.5" 6Gbps SATA drives. The power management is set to Static High Performance Mode.
I ran a CrystalDiskMark benchmark ...
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Does Win 10 not pass through packets destined for Unix sockets?
In summary I have a linux pxe server setup that I now need to use on some windows 10 laptops so for the fastest and most efficient development effort I am attempting to simply move the linux pxe ...
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1
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Are on-prem Windows Virtual Desktop servers still a thing?
My supervisor wants me to look into a virtual Windows 10/11 desktop solution leveraging our on-prem VMware cluster. Luckily, our cluster hardware has plenty of CPU/RAM/storage to accomplish the scope ...
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How do I build the Hub & Spoke setup when VMs cannot be fronted by Application Gateways outside their virtual network?
Ported from Stackoverflow
I am building a Hub & Spoke network topology - described here - as recommended in the Azure docs
However when it comes to create the VM in the separate VNet, I get the ...
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Azure Recovery Services Vault - Reduce Total Backups Stored
My client is looking to reduce the number of VM backups stored in their Azure Recovery Services Vault (RSV) since total storage exceeds 100+ TB in each environment and costs are adding up. Each RSV ...
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Why can't I ping my NAT VM yet access internet through it?
I'm trying to understand the network configurations for VMs in Virtualbox. When I use a NAT VM, I know it can't be reached by the host or other VMs because you have to configure port forwarding. ...
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How to assign full processor(cores/sockets) to a VM? VMware
Trying to use VMware. Using Ryzen 9 5950X(16 cores / 32 threads).
The question is how to assign all cores/threads properly to a VM? Were trying different configurations of "Number of Processors&...
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Server File Download
I am running a Ubuntu virtual machine on Azure and on my landing page I wish to allow downloading a file I already uploaded to the server. For this reason I made a hyperlink in my index.html file ...
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KVM start failed (ubuntu image)
KVM start failing after I have made the below changes.
Environment:-
qemu-img version 2.1.3
ubuntu VM
1. Stop the VM
2. qemu-img resize vm1.img +50G
3. start the VM
virsh start vm1
error: failed to ...
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1
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607
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Disk speed on Azure Virtual Machine Scale Set is slower than advertised
I have an Azure Service Fabric cluster with 5 nodes, baked by an Azure Virtual Machine Scale Set. The size of the instances is Standard_D2ds_v4 with an advertised disk speed of max 3200 IOPS. At the ...
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KVM bridge only assiging ipv6 adresses on VM
I use KVM in bridged network mode so I can have a VM that has an IP from the host LAN network.
My host (Ubuntu 18.04 server) networking is configured as below :
network:
ethernets:
enp0s31f6:
...
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1
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Hyper-V Windows 10 virtual machine continuously crashing with memory management blue screen
I am trying to create a virtual machine of a Windows 10 laptop using Sysinternals 'Disk2vhd utility.
First I created a vhdx file of the laptops C: drive using the Disk2vhd utility. Afterwards I copied ...
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Unable to access the path inside Docker Desktop Virtual machine where Kubernetes has mounted the volume
I am running RabbitMQ inside Kubernetes cluster. When I type the following command in order to know where volume has been mounted in my Docker desktop virtual machine
kubectl get pv pvc-7c1bf15b-7f84-...
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Can you access VM instance in Google Cloud without being root?
I'm trying to access GCP VM instance but I messed it up and now I'm getting this error: sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set
but I don't have the root password. Is ...
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1
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Debian 11 no longer automatically receiving static DHCP IP address, dhclient must be started manually
I am hosting a Debian 11 (no desktop environment) virtual machine on Windows Server 2012 with Hyper-V. This is on a company network with its own DHCP system and the MAC address of the VM is registered ...
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Xeon E5-2698 virtual machine, underpowered?
I'm working on a VM which regularly hits 100% CPU load. It's hard to be sure that the running processes itself are particularly heavy, but I have a suspicion that the CPU's may be outdated, which is ...
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GCP windows VM does not work when logged off
I am running a Windows Server VM on GCP.
When logging in via Remote Desktop, I am starting certain applications which should actively run for a couple of hours.
But when closing my Remote Desktop ...
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How can we move secondary IP address of from one NIC to other in Azure
I want to implement HA system on azure, for that I need to move secondary IP address of active vm to standby vm as soon failover happens, how can we do this?
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What is a good indicator that a server does not have enough RAM?
I am the "application owner" of a server (ie. I am responsible for running and maintaining the application running on the server).
The VM has 8GB of RAM, as was recommended when the ...
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0
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Set up a single ip for egress / ingress traffic on a docker swarm
I have a docker swarm with 3 vms:
node1: 192.168.10.1
node2: 192.168.10.2
node3: 192.168.10.3
Is it possible to have an ip 192.168.10.4 for both ingress and egress traffic.
I know one way of doing ...
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trying to generate ssh keys of the vm but getting the error option requires an argument -- P
I have executed the below command manually in the vm and i am able to generate the ssh keys but when i tried using the same script in the automation pipeline from github actions i am getting the error
...
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How to disable auto-update for virtual machines in Azure?
In my azure environment there are sets of virtual machines that are rebooting at the same time, I assume it has to do with auto-update settings. How do I turn off the auto-updates and enable manual ...
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1
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How to block all traffic on a VM except host IP?
I am running a Vagrant VM and am trying to have a network isolated mode. Since disabling or changing anything with the default NAT interface breaks Vagrant I decided to block ALL traffic inside the ...
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Unable to create a new Azure VM in most regions
Unable to create Azure VM in most regions. I am talking about general purpose "D" series.
From the drop down list of sizes....they are "greyed out". If I choose a region such as ...
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Access to VM using KVM bridged network interface inside company network not working outside of room LAN
I work at an institute so as you can imagine we have the typical proxy, AD, DNS and so on in place. My group is looking into transitioning to Linux for our servers (containing several GPUs for various ...
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Mounting a shared folder with a virtual machine using Oracle VM virtual box manager
I've done this before but I just updated Oracle VM virtual box manager, I'm on the step where I select the folder to link to my own host computer but it's not letting select the okay button to mount ...
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virbr0-nic unmanaged in KVM/Cockpit
I am running cockpit on Rocky linux to make a KVM host. I have installed and enabled all 4 nics onboard and they are showing up as managed in the management tab except virbr0-nic
when I run the create ...
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338
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Google Compute Engine automatically shutdowns with serial console errors
I was upgrading the system specs of a VM I have.
I shutdown the VM, edit, increased the specs and then started it back up.
After doing this, it would just power back off after a moment online.
...
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1
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157
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How to allow outbound connections only for updates
I have a network with a number of VMs hosting applications mainly for internal use, but they are also exposed to the internet via Traefik. Because there is a chance one of them will be hacked ...
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1
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The access to shared directory using DFS is very slow
I have an Active Directory with 1 DC and 1 DFS deployed on hyper-v VM on a certain machine X. The DFS consists of several shared folders from machine X and folders from machine Z. When I try to ...
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Hyper-V virtual machine management service stuck at ‘Stopping’
After installing the KB5009624 monthly rollup from Microsoft, we are experiencing a problem wherein suddenly both the Hyper V instance and the Host Machine become unreachable using the virtual switch.
...
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0
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How to access from Linux (host) any content that needs the VPN connection running on Windows (guest)?
I'm working on a coding project that needs to access private URLs through a VPN connection.
The only way to connect to this VPN is through the company's proprietary software made only for Windows.
So, ...