Quick summary
- What it is: KVM (Kernel-based Virtual Machine) is a complete virtualization solution for Linux that turns the Linux kernel into a hypervisor.
- What it's for: it helps understand how services are hosted, isolated, scaled and protected on a server.
- When to check it: when comparing plans, reviewing performance, analyzing availability or needing more control over the environment.
Definition:
KVM (Kernel-based Virtual Machine) is a complete virtualization solution for Linux that turns the Linux kernel into a hypervisor. Launched in 2007, KVM allows running multiple isolated virtual machines on a single physical host, providing a solid foundation for creating robust and efficient virtualized environments.
Key Features:
- Integration in the Linux Kernel: KVM is fully integrated into the Linux kernel, ensuring optimal performance and efficient resource management.
- Support for Multiple Operating Systems: Allows running a variety of guest operating systems, including Linux, Windows and others.
- Security: Uses Linux kernel security mechanisms, such as SELinux and AppArmor, to provide a secure environment for virtual machines.
- Scalability: Capable of managing from small deployments to large infrastructures with thousands of virtual machines.
- Open Source: Being open-source, users can customize and extend KVM according to their specific needs.
Benefits:
- Efficiency: Leverages the capabilities of the Linux kernel to deliver efficient performance and low overhead.
- Flexibility: Supports a wide range of hardware and software, allowing highly customizable configurations.
- Security: Provides a secure environment for virtual machines thanks to the inherent security features of Linux.
Common Uses:
- Creating and managing virtualized development and testing environments.
- Deploying private and public cloud infrastructures.
- Providing hosting services and application hosting in virtualized environments.
Example Users:
- Cloud service providers that need an efficient and scalable solution for managing virtual machines.
- Companies that want to optimize hardware resource use through virtualization.
- Research and development organizations that require virtualized environments for software testing and development.
Why it matters in hosting
Understanding this concept will help you make better decisions when managing your service. In practice, it relates to how services are hosted, isolated, scaled and protected on a server. If it appears in a guide, the control panel or a support response, review the context before making changes.
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