nginx除了可以转发http协议以外，还支持对TCP协议的分发，那就是用nginx的upstream组件


在nginx.conf最底部加入

include tcp.d/*.conf;

在同级目录下新建文件夹 tcp.d并在该文件夹内创建test.conf文件



test.conf内容

stream {
        upstream nginx_proxy {
            hash $remote_addr consistent;
            server 192.168.2.245:5123 weight=3;
            server 192.168.2.246:5123 weight=3;
            server 192.168.2.250:5123 weight=3;
        }
        server {
            listen 5123;
            proxy_connect_timeout 10s;
            proxy_timeout 30s;
            proxy_pass nginx_proxy;
            access_log /home/wwwlogs/access.log;
            error_log /home/wwwlogs/error.log;
        }
}