nginx.conf

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$http_x_forwarded_for - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$remote_addr"';

    log_format stratum '$remote_addr [$time_local] $scheme $status $request_length '
                       '$body_bytes_sent $upstream_addr $upstream_connect_time '
                       '$upstream_header_time $upstream_response_time';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;


    upstream api {
      server 149.56.26.200:4000;
    }

    upstream yiimp-api {
      server 149.56.26.200:8081;
    }

    server {
      listen 4000;

      location / {
          proxy_pass http://api;
      }

      location /yiimp/ {
          proxy_pass http://yiimp-api;
      }
    }
  }

  stream {
    log_format stratum 'Remote: $remote_addr Time: [$time_local] Proto:$protocol Status:$status Bytes Recv:$bytes_received '
                 'Bytes Sent: $bytes_sent $upstream_addr $upstream_connect_time '
                 '$upstream_first_byte_time $upstream_session_time $session_time';
    access_log  /var/log/nginx/stratum_access.log  stratum;
  include /etc/nginx/conf.d/*.conf;
}