# 端口转发

Surge 可以监听特定的本地端口，并将来自该端口的 TCP 请求转发到特定的主机。当 Surge 的请求处理（系统代理或增强模式）未启用时，此功能可以独立使用。

配置示例：

```ini
[Port Forwarding]
0.0.0.0:6841 localhost:3306 policy=SQL-Server-Proxy
```

`policy` 参数是可选的；如果未指定，将使用标准的代理匹配来决定策略。

此功能通常用于开发和调试场景，例如使用 SSH 连接到像 MariaDB 这样的服务器。


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://surge.mitsea.com/others/port-forwarding.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.