Nginx反向代理功能

nginx实现负载均衡的组件

ngx_http_proxy_module    proxy代理模块，用于把请求抛给服务器节点或者upstream服务器池

机器准备，两台服务器

master  192.168.11.63　　主负载
slave   192.168.11.64　　web1

反向代理配置文件nginx.conf

worker_processes  1;
error_log  logs/error.log;
pid        logs/nginx.pid;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  logs/access.log  main;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       80;
        server_name  192.168.11.63;
        location / {
        proxy_pass  http://192.168.11.64;
            root   html;
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

此时访问master的服务器192.168.11.63:80地址，已经会将请求转发给slave的80端口

除了页面效果的展示以外，还可以通过log(access.log)查看代理效果