nginx怎么反向代理到node？

Question

node的地址是127.0.0.1:2336该怎么设置？这是/etc/nginx/nginx.conf的内容，要加什么吗？user              nginx;worker_processes  1;error_log  /var/log/nginx/error.log;#error_log  /var/log/nginx/error.log  notice;#error_log  /var/log/nginx/error.log  info;pid        /var/run/nginx.pid;events {    worker_connections  1024;}http {    include       /etc/nginx/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  /var/log/nginx/access.log  main;    sendfile        on;    #tcp_nopush     on;    #keepalive_timeout  0;    keepalive_timeout  65;    #gzip  on;    # Load config files from the /etc/nginx/conf.d directory    # The default server is in conf.d/default.conf    include /etc/nginx/conf.d/*.conf;}