# Simple Version

server {
        listen 80;
        server_name  example.com;
        access_log  /var/log/nginx/example.log;

        location / {
                proxy_pass   http://127.0.0.1:1337;
        }
}

# Advanced version

worker_processes 1;

user nobody nogroup;
pid /tmp/nginx.pid;
error_log /tmp/nginx.error.log;

events {
    worker_connections 1024;
    accept_mutex off;
}

http {
    include mime.types;
    default_type application/octet-stream;
    access_log /tmp/nginx.access.log combined;
    sendfile on;

    upstream app_server {
        server unix:/tmp/gunicorn.sock fail_timeout=0;
        # For a TCP configuration:
        # server 192.168.0.7:8000 fail_timeout=0;
    }

    server {
        listen 80 default;
        client_max_body_size 4G;
        server_name _;

        keepalive_timeout 5;

        # path for static files
        root /path/to/app/current/public;

        location / {
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Host $http_host;
            proxy_redirect off;

            if (!-f $request_filename) {
                proxy_pass http://app_server;
                break;
            }
        }

        error_page 500 502 503 504 /500.html;
        location = /500.html {
            root /path/to/app/current/public;
        }
    }
}

Nginx configuration for gunicorn

ActionScript