Nginx: php and socket.io reverse proxy

gistfile1.txt

server {
        listen 80;
        server_name 192.168.0.1;
        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;
        root /srv/www/public_html;

        index index.php;

        location ~* \.(ico|css|js|gif|jpe?g|png)(\?[0-9]+)?$ {
                expires max;
                log_not_found off;
        }

	location / {
                # Check if a file or directory index file exists, else route it to index.php.
                try_files $uri $uri/ /index.php;
        }

	location ~ ^/(node|socket\.io) {
                proxy_pass http://localhost:3000;
                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_redirect off;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }

      	location ~ \.php$ {
                include /etc/nginx/fastcgi_params;
                fastcgi_pass  127.0.0.1:9000;
                fastcgi_index index.php;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        }
}