Glossary infra Term Page
NAT
Address translation that connects private networks to the outside world
Core Idea
NAT rewrites addresses at the network boundary so private devices can talk to the public internet, or so selected external traffic can be mapped back to internal services. It is central to hiding many internal machines behind a small public surface.
Why It Matters Here
Mathbong uses NAT as the core idea behind OPNsense outbound rules, port forwarding, and homelab exposure design. It is the term that makes the network boundary feel concrete instead of abstract.