Get hostname from Rails controller

Question

I am trying to get the hostname of the machine which a rails application is running on from the controller.

What would be the best way to do this taking into account

Answer 1

There's always:

require 'socket'
...
Socket.gethostname

I've got no Windows box handy with which to test this, but the docs make no mention of it being *nix specific.

Note: The require statement is not necessary for Rails 4, and probably other Rails versions as well. It is required if you are doing plain Ruby without Rails.