user www-data;worker_processes auto;pid /run/nginx.pid;events {	use epoll;    worker_connections  1024;}http {    include mime.types;	    default_type application/octet-stream;	    sendfile on;		access_log /var/log/nginx/access.log;		error_log /var/log/nginx/error.log;	    keepalive_timeout 65;	    upstream backend {             #ip_hash;             server 192.168.0.81:8088;             server 192.168.0.96:8089;         }    server {        listen       80;        server_name  2;        location / {        #设置主机头和客户端真实地址，以便服务器获取客户端真实IP			proxy_set_header Host $host;			proxy_set_header X-Real-IP $remote_addr;			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;						#禁用缓存			proxy_buffering off;			#反向代理的地址			proxy_pass http://backend;           }    }}