upstream unicorn { server unix:/tmp/unicorn.my_app_name.sock fail_timeout=0; } server { listen 80 default deferred; # server_name the_name_of_my_server; root /my/app/public/root; try_files $uri/index.html $uri @unicorn; location @unicorn { proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_redirect off; proxy_pass http://unicorn; } error_page 500 502 503 504 /500.html; client_max_body_size 4G; keepalive_timeout 10; }