Beginner’s guide, 2026
What is a VPS? Your own server, without buying one.
The plain-English guide: what a VPS is, how it works under the hood, what a vCPU really is, and a 30-second check of whether you need one.
KVM VPS
- Your apps
- Your kerneluname -r: 6.1.182
- Virtual hardwarevirtio disk, network, CPUs
- Host kernel + KVMyour VM is one process here
- Physical server
Its own kernel, separate from the host.
Container VPS
- Your apps
- Host kernel, shareduname -r: same as host
- Physical server
Every container on the host runs on one kernel.
The short answer
A VPS (virtual private server) is a virtual machine you rent on a physical server. Software called a hypervisor splits one powerful machine into several private ones, each with its own operating system, RAM, CPU share, disk and IP address, and full administrator (root) access.
It sits between shared hosting, where many websites share one server and its software, and a dedicated server, where you rent the whole machine. A small VPS costs a few dollars a month: a LiteKeep Lite 2, with 2 vCPU, 2 GB of RAM and 40 GB of NVMe, is $4.
Most explanations of a VPS stop at “it’s like an apartment building”. Fine, but it won’t tell you what you’re buying.
So here’s the real picture, in plain words: what’s inside the box, what a vCPU actually is, the two kinds of VPS (and why one is better), what one costs, and what you can run on it.
Not sure you need one at all? The checker below answers that in 30 seconds.
In this guide you’ll learn
- What a VPS is, in one paragraph
- How it works: hypervisors, KVM and containers
- What a vCPU really is, and RAM, disk and root
- VPS vs shared, dedicated and cloud
- Do you need a VPS? A 30-second checker
- Getting started in four steps
Chapter 1
What a VPS is
Think of a VPS as a computer that lives in a data centre, that only you can log into, and that never switches off.
- Virtual: it’s software, not a box of its own. One physical server runs several virtual ones side by side.
- Private: its RAM, disk, files and operating system are yours. Other customers on the same machine can’t see in.
- Server: it runs all day with a public IP address, so websites, apps, game servers and VPNs on it are reachable from anywhere.
You get root access: the administrator account. You install any software, open any port and set it up exactly your way. That freedom is the point of a VPS, and also the responsibility: you keep it updated.
Chapter 2
How a VPS works
Underneath every VPS is a piece of software that divides a physical server.
A hypervisor pools the server’s processors, memory and storage and hands a share to each virtual machine. On Linux, the common one is KVM, a module built into the Linux kernel that turns it into a full virtualisation system, using the virtualisation features of Intel and AMD processors.
There are two kinds of VPS, and the difference matters:
| KVM VPS (hardware virtualisation) | Container VPS (OpenVZ, LXC) | |
|---|---|---|
| Kernel | Its own, separate from the host | The host’s, shared with every container |
| Operating system | Any Linux, or Windows | Linux only, on the host’s kernel |
| Docker, VPNs, kernel modules | Work as on any computer | Often limited or blocked |
| Isolation | A full virtual machine | Processes fenced off on one shared system |
Every LiteKeep server is KVM. Our KVM guide goes deeper.
Chapter 3
What a vCPU, RAM and NVMe mean
Every VPS plan lists the same four numbers. Here’s what they mean in practice.
- vCPU: a virtual processor. It’s usually one hardware thread of a physical core, and your vCPUs take turns on the host’s cores with other customers’. Two vCPUs comfortably run a website, a VPN or a few containers.
- RAM: memory, and the number that most often decides the plan. 2 GB runs a website or a small app; Mailcow, Minecraft for 20 players or a busy shop want 6 to 8 GB.
- Disk (NVMe or SSD): storage. NVMe is the fast kind. 40 GB holds the system and a few sites; photos, backups and archives want a storage VPS.
- Traffic: how much data the server can send each month. 1 TB is a lot for a website.
Chapter 4
VPS vs shared hosting, dedicated servers and cloud
Four ways to put something on the internet, from simplest to most powerful.
| Shared hosting | VPS | Dedicated server | |
|---|---|---|---|
| What you get | Space on a server shared by many sites | Your own virtual machine | A whole physical machine |
| Root access | No, a control panel | Yes | Yes |
| Runs | Websites, with the host’s software | Anything Linux or Windows runs | Anything, at full power |
| Your resources | Shared with the other sites | Your own RAM and disk, a share of CPU | All of it |
| Typical start | A few dollars a month | From $4 a month at LiteKeep | Tens to hundreds a month |
“Cloud server” usually means a VPS you create and delete on demand, billed by the hour. A LiteKeep Lite is exactly that. See VPS vs shared hosting and VPS vs dedicated server for the details.
Chapter 5
Do you need a VPS?
Tell the checker what you want to run. It says whether a VPS is the right tool and which plan to start on.
Do you need a VPS?
Either works; a Lite 2 gives you room.
- One small website runs fine on shared hosting. A VPS gives it its own resources, full control and room to add more later, and a Lite 2 costs $4 a month.
- You’ll connect over SSH now and then for updates. Our guides walk you through the first hour.
Billed by the hour, so trying it costs cents. Size it in detail
MythA VPS is only for experts.
One-click apps install WordPress, Docker, WireGuard or a Minecraft server for you. You manage them from the browser.
MythA VPS is expensive.
A Lite 2 is $4 a month, and billed by the hour, so a test afternoon costs cents.
MythOther customers can see my files.
On KVM each server is its own virtual machine with its own disk. Other customers can’t log into yours.
Chapter 6
Getting started with your first VPS
From nothing to a running server in four steps.
Deploy
Pick a plan, a country near your users and an image: Ubuntu 24.04 is the safe default, or a one-click app.
Connect
Log in with SSH. On Windows, our SSH key tutorial sets it up in five minutes.
Secure
Keys only, a firewall and automatic updates. Our VPS security guide covers the first hour.
Build
Install what you came for. Need ideas? See what you can do with a VPS.
Now it’s your move
A VPS is your own server inside a bigger one: your operating system, your RAM, root access, and an IP address that’s always on. It’s the step up from shared hosting for anything that needs its own software.
Start with a Lite 2 at $4 a month, billed by the hour, and grow when your project does.