进入 /usr/local/nginx/conf/include 目录，创建 nginx.node.conf 文件，在里面输入如下代码：
upstream nodejs {
server 127.0.0.1:3000;
#server 127.0.0.1:3001;
keepalive 64;
}
server {
listen 80;
server_name www.penguu.com penguu.com;
access_log /var/log/nginx/test.log;
location / {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_set_header X-Nginx-Proxy true;
proxy_set_header Connection "";
proxy_pass http://nodejs;
}
}
5.进入/usr/local/nginx/conf ，打开nginx.conf, 在http 里面添加 include /usr/local/nginx/conf/include/*
6.重启nginx , 输入 /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf