Glossary infra Term Page

Public IP

An IP address that is directly reachable from the internet

public-ip #networking#opnsense#homelab

Korean version

Aliases

public address

Prerequisites

NAT

Related Concepts

Private IP NAT Reverse Proxy DNS

Core Idea

A public IP is an address that the internet can reach directly. Service exposure, port forwarding, DNS records, and inbound traffic design all revolve around this address.

Why It Matters Here

Mathbong uses public IPs when explaining homelab exposure and OPNsense WAN design. The moment you decide what should be visible on the internet, this is the first address you check.

Posts Mentioning This Concept

[OPNsense Series Part 3] Designing NAT, Port Forwarding, and Reverse Proxy Paths Design outbound NAT, inbound port forwarding, and reverse proxy exposure on OPNsense so only the right services are public and policy gaps stay closed.[OPNsense 시리즈 3편] NAT, 포트포워딩, 리버스 프록시 경로 정리하기 OPNsense에서 아웃바운드 NAT, 인바운드 포트포워딩, 리버스 프록시 노출 전략을 설계하고, 공개 대상과 내부 전용 대상을 구분하는 방법을 다룹니다.[OPNsense Series Part 1] What OPNsense Is and Why It Pairs So Well with Proxmox Learn what OPNsense handles as a firewall, router, and VPN gateway, and why it works so well alongside Proxmox in self-hosted infrastructure.