To enable the HTTP Stub Status module for Nginx, create the file:
/etc/nginx-sp/vhosts.d/APPNAME.d/nginx_status.conf
with the following contents:
location /nginx_status { # copied from http://blog.kovyrin.net/2006/04/29/monitoring-nginx-with-rrdtool/ stub_status on; access_log off; allow SOME.IP.ADD.RESS; deny all; }
Replace SOME.IP.ADD.RESS with the IP address of the machine you'll be accessing this page with.
Then, restart Nginx by running this command as root:
sudo service nginx-sp restart
You can find more information in the Nginx documentation for the allow directive and the HttpStubStatusModule.