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wiki/concepts/反向代理.md
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---
title: "反向代理"
type: concept
tags: [networking, proxy, web-server]
date: 2026-04-17
---
## Definition
反向代理（Reverse Proxy）是一种服务器架构模式，代理服务器接收外部客户端请求，并根据配置将请求转发到一个或多个内部服务器，然后将内部服务器的响应返回给客户端。
## Key Properties
- 位于客户端和真实服务器之间
- 隐藏真实服务器的真实 IP 和端口
- 可实现负载均衡、SSL 终止、缓存等功能
- 常见反向代理软件：Nginx、Caddy、Traefik、Apache HTTP Server
## Use Cases
- 将外部请求转发到内网服务
- HTTPS/SSL 终止
- 负载均衡
- 静态资源缓存
- 统一入口管理多服务
## Connections
- [[反向代理]] ← implemented_by ← [[Caddy]]
- [[反向代理]] ← implemented_by ← Nginx
- [[反向代理]] → enables ← [[内网穿透]]