Create Reverse DNS (rDNS) / PTR Record in SolusVM VPS Control Panel […]
Hyper V
Create virtual machine (VPS) in Microsoft Hyper-V […]
Identify virtual machine technology
virt-what is a shell script which can be used to detect if the program is running in a virtual machine. It will identify what VM technology is used for current VM. For example KVM, Xen, HyperV etc. On CentOS 7, install virt-what with
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yum -y install virt-what |
On Debian/Ubuntu
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apt install virt-what |
Example See VPS […]
Vagrant
Vagrant allow you to quickly creare virtualmachines. You can download vagrant boxes from https://app.vagrantup.com/boxes/search Install Vagrant Install Vagrant on CentOS Install vagrant in Debian/Ubuntu
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apt install vagrant -y |
You may also need to install virtualbox
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apt install virtualbox |
Using Vagrant Creating CentOS 8 Virtual Machine with Vagrant To update vagrant boxes, run
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vagrant box update |
To list all available vagrant boxes
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vagrant box list |
[…]
Proxmox 6 disable No valid subscription notice
To disable No valid subscription notice from proxmox, edit file
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vi /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js |
Find
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if (data.status !== 'Active') { |
This is on line 380. inside function checked_command Replace with
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if (false) { |
Resart pveproxy
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systemctl restart pveproxy |
[…]
virt-manager
virt-manager is a GUI tool to manage virtual machines. On CentOS desktop, install it with
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yum install virt-manager |
For installing on Ubuntu, see Install virt-manager on Ubuntu Connect to remote KVM server To connect to remote KVM server from virt-manager, Go to File > Add Connection If SSH port is not 22, use IP:PORT format to connect […]
Install virt-manager on Ubuntu
virt-manager is a GUI tool used to manage KVM virtial machines. To install virt-manager on Ubuntu, run
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apt install virt-manager |
[…]
Clone VM on VMware ESXi using vmkfstools
Free version of VMware ESXi don’t provide option to clone virtual machine. If you want to clone a VM, you need to purchase expensive vSphere license. There is a work around for this, you need to clone disk of an existing Virtual machine using vmkfstools. To make clone of a VM disk, SSH into your […]
virsh list
To list all VM on a KVM server, run
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virsh list |
Example
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root@s3-m12:~# virsh list Id Name State ---------------------------------------------------- 6 foo running root@s3-m12:~# |
See virsh […]
virsh nodeinfo
To see information about a KVM node, run
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virsh nodeinfo |
Example
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root@s3-m12:~# virsh nodeinfo CPU model: x86_64 CPU(s): 8 CPU frequency: 1861 MHz CPU socket(s): 1 Core(s) per socket: 4 Thread(s) per core: 2 NUMA cell(s): 1 Memory size: 16423092 KiB root@s3-m12:~# |
See virsh […]