> For the complete documentation index, see [llms.txt](https://docs.greennode.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greennode.ai/vnetwork/public-nat-instance.md).

# Public NAT Instance

A Public NAT instance on GreenNode is a networking service that allows instances in a private subnet to communicate with the internet while preventing inbound traffic from the internet to those instances.