# proxy\_buffers

<mark style="color:blue;">**proxy\_buffers**</mark>指令用于<mark style="color:blue;">**配置接收一次被代理服务器响应数据的Proxy Buffer个数和每个Buffer的大小**</mark>，其语法结构为：

```nginx
proxy_buffers number size;
```

* <mark style="color:blue;">**number**</mark>，Proxy Buffer的个数。
* <mark style="color:blue;">**size**</mark>，每个Buffer的大小，<mark style="color:orange;">**一般设置为内存页的大小**</mark>。根据平台的不同，可能为4KB或者8KB。

由这个指令可以得到<mark style="color:blue;">**接收一次被代理服务器响应数据的Proxy Buffer总大小为number \* size**</mark>。该指令的默认设置为：

```nginx
proxy_buffers 8 4k|8k;
```


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