Following the tutorial on launching a Rails app with Nginx and Unicorn here: https://www.digitalocean.com/community/articles/how-to-launch-your-ruby-on-rails-app-with-the-digitalocean-one-click-image Once I went through the whole tutorial, I try to visit my app on port 80 with the IP address for my Droplet, and all I get are 504 time outs. I tailed Unicorn and got this: root@blog:/home/rails# tail -40 /home/unicorn/log/unicorn.log /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/definition.rb:114:in `specs' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/definition.rb:159:in `specs_for' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/definition.rb:148:in `requested_specs' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/environment.rb:18:in `requested_specs' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:13:in `setup' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler.rb:120:in `setup' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/setup.rb:17:in `' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `require' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `rescue in require' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require' /home/rails/config/boot.rb:6:in `' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' /home/rails/config/application.rb:1:in `' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' /home/rails/config/environment.rb:2:in `' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' config.ru:4:in `block in ' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize' config.ru:1:in `new' config.ru:1:in `' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn.rb:48:in `eval' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn.rb:48:in `block in builder' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn/http_server.rb:722:in `call' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn/http_server.rb:722:in `build_app!' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn/http_server.rb:595:in `init_worker_process' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn/http_server.rb:615:in `worker_loop' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn/http_server.rb:500:in `spawn_missing_workers' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn/http_server.rb:511:in `maintain_worker_count' /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/gems/1.9.1/gems/unicorn-4.6.3/lib/unicorn/http_server.rb:277:in `join' /usr/bin/unicorn:121:in `' E, [2013-09-15T01:13:06.115978 #24715] ERROR -- : reaped # worker=1 I, [2013-09-15T01:13:06.116156 #24715] INFO -- : worker=1 spawning... I, [2013-09-15T01:13:06.117254 #22926] INFO -- : worker=0 spawned pid=22926 I, [2013-09-15T01:13:06.120449 #22928] INFO -- : worker=1 spawned pid=22928 I, [2013-09-15T01:13:06.131898 #22926] INFO -- : Refreshing Gem list I, [2013-09-15T01:13:06.135844 #22928] INFO -- : Refreshing Gem list When I execute "rails s -e production" the app runs fine in WEBrick, so I have to assume it must be Unicorn or Nginx causing the problem. Any advice? I'm new to both Unicorn and Nginx.