nginx 正向代理配置

正向代理服务

**注意：**使用http_proxy模块代理http协议，暂时不能支持HTTPS代理

配置语法

语法：proxy_pass URL;

该语法在location、if in location、limit_except下配置

URL写法：

http://localhost:8000/uri/

https://192.168.1.1:8000/uri/

http://unix:/tmp/backend.socket:/uri/;

代理某个页面：

vim /etc/nginx/conf.d/zx_proxy.conf

server {
    listen 80;
    server_name localhost jeson.t.imooc.io;
    
    
    location / {
        root /usr/share/nginx/html;
        index index.html index.htm;
    }
    
    # http://jeson.t.imooc.io/test_proxy.html
    location ~ /test_proxy.html$ { 
        proxy_pass http://127.0.0.1:8000;  # 向该url请求
    }

    
}

代理全部页面：

vim /etc/nginx/conf.d/zx_proxy.conf

server {
    listen 80;
    server_name localhost jeson.t.imooc.io;
    
    resolver 8.8.8.8  # DNS服务器
        
    location / {
        proxy_pass http://$http_host$request_uri;
    }
    
}

代理缓冲区

语法：proxy_buffering on | off;

默认：on

该语法在http、server、location下配置

相关模块：proxy_buffer_size、proxy_buffers、proxy_busy_buffers_size

跳转重定向

语法：proxy_rediredt off | redirect replacement;

该语法在http、server、location下配置

头信息

语法：proxy_set_header field value;

默认：proxy_set_header Host $proxy_host;

   proxy_set_header Connection close;

该语法在http、server、location下配置

相关模块：proxy_hide_header、proxy_set_body

超时

语法：proxy_connect_timeout time

默认：60s;

该语法在http、server、location下配置

相关模块：proxy_read_timeout、proxy_send_timeout

常用示例

vim /etc/nginx/conf.d/zx_proxy.conf

server {
    listen 80;
    server_name localhost jeson.t.imooc.io;
    
    resolver 8.8.8.8  # DNS服务器
        
    location / {
        proxy_pass http://127.0.0.1:8000;
        proxy_redirect default;
        
        proxy_set_header Host $http_host;  # 添加Host头信息
        proxy_set_header X-Real-IP $remote_addr;  # 添加IP地址
        
        proxy_connect_timeout 30;
        proxy_send_timeout 60;
        proxy_read_timeout 60;
        
        proxy_buffer_size 32k;
        proxy_buffering on;  # 减少IO，尽可能等待
        proxy_buffers 4 128k;
        proxy_busy_buffers_size 256k;
        proxy_max_temp_file_size 256k;
    }
    
}