How to use Linux for virtual machine management

How to use Linux for virtual machine management

Virtual machine technology has been widely used in recent years and is accepted and used by more and more enterprises and individuals. Virtual machine management is the core of virtual machine technology, and its management efficiency and stability have an important impact on the performance and security of the virtualized environment. The Linux operating system is not only a stable, efficient, and open operating system, but also has become a major tool widely used in virtual machine management. Below we will use KVM and VirtualBox as examples to introduce how to use Linux for virtual machine management.

1. Use KVM for virtual machine management

KVM is a command line tool that allows users to manage virtual machines through commands. The following are some basic KVM commands:

1. View the currently running virtual machine:
sudo virsh list

2. Start the virtual machine:
sudo virsh start VM_name

3. Stop the virtual machine:
sudo virsh shutdown VM_name

4. Delete the virtual machine:
sudo virsh undefine VM_name

5. View the detailed information of the virtual machine ：
sudo virsh dominfo VM_name

6. View the log information of the virtual machine:
sudo virsh domlog VM_name

7. View the console of the virtual machine:
sudo virsh console VM_name

8. Modify the configuration file of the virtual machine:
sudo virsh edit VM_name

The above command can enable KVM to manage the virtual machine in Linux.

2. Use VirtualBox for virtual machine management

VirtualBox is a desktop-level virtualization application that can run in operating systems such as Windows, Linux and Mac OS X. The following are some basic VirtualBox commands:

1. View the currently running virtual machine:
VBoxManage list runningvms

2. Start the virtual machine:
VBoxManage startvm VM_name

3. Stop the virtual machine:
VBoxManage controlvm VM_name poweroff

4. Delete the virtual machine:
VBoxManage unregistervm VM_name

5. View the detailed information of the virtual machine:
VBoxManage showvminfo VM_name

6. Modify the configuration of the virtual machine:
VBoxManage modifyvm VM_name --memory 2048

The above are the commands for managing VirtualBox virtual machines in Linux.

Whether we are using KVM or VirtualBox, we can use the command line to manage virtual machines under the Linux operating system, and add, delete, modify and start virtual machines by modifying the configuration of the virtual machine. Since both virtual machine management methods require users to have a certain command line knowledge, it is recommended that users practice and learn in-depth Linux system and command line operations.

In short, virtual machine management is the core and key of virtual technology. The correct use of virtual machine management tools can not only improve management efficiency, but also improve the stability and security of the server. I hope that through the brief introduction and command line examples of this article, readers will try to use KVM and VirtualBox for virtual machine management in Linux, and deepen their understanding of the Linux operating system in practice.

The above is the detailed content of How to use Linux for virtual machine management. For more information, please follow other related articles on the PHP Chinese website!