Get user IP with ruby on rails

Question

My rails app works with nginx and unicorn. I try used

Socket.ip_address_list 
request.ip 

without success... How I can get user IP?

UPDATE I fix it by adding in host configutation

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

and use

request.remote_ip

Answer 1

request.remote_ip should work.

HTH