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

You may also need to install virtualbox

Using Vagrant Creating CentOS 8 Virtual Machine with Vagrant To update vagrant boxes, run

To list all available vagrant boxes

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Proxmox 6 disable No valid subscription notice

To disable No valid subscription notice from proxmox, edit file

Find

This is on line 380. inside function checked_command Replace with

Resart pveproxy

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virt-manager

virt-manager is a GUI tool to manage virtual machines. On CentOS desktop, install it with

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 […]

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virsh list

To list all VM on a KVM server, run

Example

See virsh […]

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virsh nodeinfo

To see information about a KVM node, run

Example

See virsh […]

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virsh

virsh command is used to manage KVM vps. It is part of libvirt package. http://libvirt.org virsh list virsh nodeinfo To list KVM virtual machines, run

Start a VM

To shutdown a VM, run

To delete a VM, run

Connect to Remote Server

This will take your SSH key. List All […]

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LXD container snapshot and restore

lxc allow you to take snapshot, restore snapshot of a container. Here we create a snapshot, then delete the /etc folder from the container. Now the container is useless. Restore the container from snapshot to get it work again.

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