nginx怎么配置反向代理

## Basic reverse proxy server ##

## Apache backend for www.redis.com.cn ##

upstream apachephp  {

    server ip:8080; #Apache

}

## Start www.redis.com.cn ##

server {

    listen 80;

    server_name  www.redis.com.cn;

    access_log  logs/redis.access.log  main;

    error_log  logs/redis.error.log;

    root   html;

    index  index.html index.htm index.php;

    ## send request back to apache ##

    location / {

        proxy_pass  http://apachephp;

        #Proxy Settings

        proxy_redirect     off;

        proxy_set_header   Host             $host;

        proxy_set_header   X-Real-IP        $remote_addr;

        proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;

        proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;

        proxy_max_temp_file_size 0;

        proxy_connect_timeout      90;

        proxy_send_timeout         90;

        proxy_read_timeout         90;

        proxy_buffer_size          4k;

        proxy_buffers              4 32k;

        proxy_busy_buffers_size    64k;

        proxy_temp_file_write_size 64k;

   }

}

## End www.redis.com.cn ##