What Is a NAT VPS? Benefits, Limits and Common Uses

A NAT VPS is a virtual server with a private address that shares a public IPv4 address with other servers. Outbound connections usually work normally; inbound connections require an assigned port mapping or another supported ingress method.

How the connection works

Suppose your guest runs SSH on port 22. The provider might assign public port 24022 on a shared address and forward it to your private port 22. You connect to the public address and port 24022, not directly to the guest's private address. This is an example, not an assigned Autdo endpoint.

TCP and UDP mappings are separate. Sharing an address does not mean every customer receives access to every port on it. A domain name also cannot remove that restriction.

Where a NAT VPS fits

Development environments, scheduled tasks, lightweight APIs behind an appropriate ingress proxy, and remote monitoring can fit well. Software that makes outbound HTTPS requests often needs little network adjustment. A public mail server, nameserver or application requiring a specific public port needs more careful evaluation.

At Autdo Cloud, the VPS catalog describes KVM NAT plans. NAT networking and KVM virtualization are different properties: KVM describes the virtual machine; NAT describes how its network reaches the Internet.

What to check before ordering

Check RAM, disk, shared CPU, bandwidth limit, port allowance and image availability. Identify every inbound protocol your application needs. If it requires public port 443, confirm how that port will be provided before buying. Do not assume dedicated IPv4 or routed IPv6 is included.

Read the purchase checklist and dedicated IPv4 comparison. See current plans for availability.

Reference: RFC 1918: private IPv4 address space.