# 75.10.1 自定义Tomcat代理配置

如果使用的是Tomcat，你可以配置用于传输"forwarded"信息的headers名：

```
server.tomcat.remote-ip-header=x-your-remote-ip-header
server.tomcat.protocol-header=x-your-protocol-header
```

你也可以为Tomcat配置一个默认的正则表达式，用来匹配内部信任的代理。默认情况下，IP地址`10/8`，`192.168/16`，`169.254/16`和`127/8`是被信任的。通过设置`server.tomcat.internal-proxies`属性可以自定义，比如：

```
server.tomcat.internal-proxies=192\\.168\\.\\d{1,3}\\.\\d{1,3}
```

**注** 只有在使用配置文件时才需要双反斜线，如果使用YAML，只需要单个反斜线，比如`192\.168\.\d{1,3}\.\d{1,3}`。

**注** 将`internal-proxies`设置为空表示信任所有代理，不要在生产环境使用。

你可以完全控制Tomcat的`RemoteIpValve`配置，只要关掉自动配置（比如设置`server.use-forward-headers=false`）并在`TomcatServletWebServerFactory` bean添加一个新value实例。


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