Knowledgebase

KVM (Kernel-based Virtual Machine) is a full virtualization technology that allows each VPS to operate as a completely independent server inside the host machine. With KVM, every user receives fully dedicated resources — CPU, RAM, and storage — with no interference from others.

What Is Virtualization?

Virtualization is the process of dividing one physical server into multiple isolated environments called Virtual Machines (VMs). Each VM runs as a separate system with its own operating system and configurations.

There are two main types of virtualization technologies:

• Container-based virtualization: all virtual servers share the same kernel and system resources.
• Full virtualization: each VPS has its own kernel and fully isolated resources.

The Difference Between KVM and OpenVZ in Resource Management

One of the main differences between KVM and OpenVZ lies in how they handle hardware resources:

With OpenVZ, all VPS instances share the same host resources (CPU, RAM, disk). This allows providers to create an unlimited number of VPS instances, often exceeding the host’s actual capacity — a practice known as overselling or server flooding. As a result, if one user consumes high CPU or RAM, other VPS on the same node experience slow performance.

With KVM (Kernel-based Virtual Machine), each VPS is a fully independent virtual machine with its own kernel and predefined dedicated resources. Resource allocation is strictly limited and cannot be exceeded or shared. This means the host can only run a number of VPS that fits its physical capacity — ensuring stable, predictable performance for all users.

Benefits of KVM Virtualization

• Full independence: each VPS runs its own operating system (Ubuntu, AlmaLinux, Debian, etc.).
• Total control: install Docker, Kubernetes, or configure your own VPN.
• Higher stability: unaffected by other users on the same host.
• Better security: kernel-level isolation prevents any cross-access.
• Enhanced flexibility: reinstall OS, configure networking, and customize resources freely.

What You Can Do With KVM

• Run the latest Linux kernel versions.
• Deploy containerized applications like Docker or Podman.
• Install VPN software such as OpenVPN or WireGuard.
• Customize your network interfaces (IPv4 / IPv6).
• Reinstall or change your OS anytime from the client area.

Summary

By using KVM virtualization, IQ Hosting ensures every VPS receives:

• Dedicated, non-shared resources.
• Consistent, reliable performance.
• Complete control similar to a dedicated server — at a fraction of the cost.

In simple terms, with KVM you own a real, isolated server environment powered by enterprise-grade infrastructure.