CODEWITHSUNDEEP
ruby-on-railsruby
Dan
Dan

Reputation: 2837

Ruby on Rails server started but can't connect to http://localhost:3000

I'm new to Ruby on Rails and helping on an existing project. I ran rails server, and received the following output

=> Booting Unicorn
=> Rails 4.2.5.2 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
I, [2016-12-05T13:44:05.166061 #15228]  INFO -- : listening on addr=0.0.0.0:8080 fd=11
I, [2016-12-05T13:44:05.185700 #15228]  INFO -- : master process ready
I, [2016-12-05T13:44:05.187404 #15242]  INFO -- : worker=0 ready
I, [2016-12-05T13:44:05.187827 #15243]  INFO -- : worker=1 ready
I, [2016-12-05T13:44:05.188412 #15244]  INFO -- : worker=2 ready
^CI, [2016-12-05T13:45:11.233928 #15228]  INFO -- : reaped #<Process::Status: pid 15244 exit 0> worker=2
I, [2016-12-05T13:45:11.234060 #15228]  INFO -- : reaped #<Process::Status: pid 15243 exit 0> worker=1
I, [2016-12-05T13:45:11.234227 #15228]  INFO -- : reaped #<Process::Status: pid 15242 exit 0> worker=0

Which seems to indicate that the server is up and running. However, I am unable to connect to http://localhost:3000, it gives me an error connection refused. Does anybody know how I can go about debugging this?

Upvotes: 3

Views: 3183

Answers (2)

Saša Zejnilović
Saša Zejnilović

Reputation: 920

Try checking your hosts file.

Linux /etc/hosts

Windows c:\Windows\System32\drivers\etc\hosts

and editing the localhosts to serve 127.0.0.1. or move it so it is last. Rails will take the last mention of localhost and use it.

Or you can go even deper and try using telnet localhost 3000 to tell if the port is unavailable at the TCP level.

My hosts file looks something like 

127.0.0.1       localhost
127.0.1.1       myPC

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback

Upvotes: 0

Anil Yadav
Anil Yadav

Reputation: 1096

With rails 4.2.0, the server binds to localhost by default, instead of 0.0.0.0. When working with a rails in a virtual box, accessing the server from the host computer, the binding address needs to be 0.0.0.0

Start rails server with -b0.0.0.0 to make the rails server accessible from the host computer/browser.

http://guides.rubyonrails.org/4_2_release_notes.html#default-host-for-rails-server https://github.com/samuelkadolph/unicorn-rails/issues/12#issuecomment-60875268

or try passing different port

rails s -p 3001

Upvotes: 1

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