Access port other than 80 for test environment in nginx.

I need to setup test environment for rails application in nginx. It could be done in two ways 1. open a port 8000 and run the application on this 2. setup subdomain for test environment.

I tried first way by adding this line in nginx.conf server { listen 5000; server_name test.mydomain.com; root /home/brcweb/webapps/passenger/project/mydomain/public; passenger_enabled on; }

but it doesn't work. I need help to setup my test environment.