Libvirt is a toolkit to manage virtualization platforms like KVM, QEMU, Xen, and LXC. It provides a command-line interface (virsh), GUI (like virt-manager), and API for managing virtual machines (VMs).
sudo apt update
sudo apt install libvirt-daemon-system libvirt-clients qemu-kvm virtinst bridge-utils
sudo usermod -aG libvirt $USER
newgrp libvirt # Apply immediately
virt-install \
--name ubuntu-vm \
--ram 2048 \
--vcpus 2 \
--disk size=10 \
--os-variant ubuntu24.04 \
--cdrom /path/to/ubuntu-24.04.iso \
--network network=default \
--graphics none \
--console pty,target_type=serial
virsh list --all # Show VMs
virsh start ubuntu-vm # Start VM
virsh console ubuntu-vm # Access console
composer require phpseclib/phpseclib
use phpseclib3\Net\SSH2;
use phpseclib3\Crypt\PublicKeyLoader;
$ssh = new SSH2('your.server.com');
$key = PublicKeyLoader::load(file_get_contents('/path/to/private.key'));
if (!$ssh->login('username', $key)) {
exit('Login Failed');
}
echo $ssh->exec('uptime');
$ssh = SSHManager::connect($vps);
$ssh->run("apt install nginx php-fpm mariadb-server");
$ssh->run("wget https://wordpress.org/latest.tar.gz");
Libvirt is a toolkit to manage virtualization platforms like KVM, QEMU, Xen, and LXC. It provides a command-line interface (virsh), GUI (like virt-manager), and API for managing virtual machines (VMs).