I have the following in a controller method:

    begin
      response = Net::HTTP.post_form(URI.parse(File.join(@site.url, 
'scan_folder.json')), {inlay_key: @site.key})
      @response = JSON.parse(response.body.to_s)['remote']
      @response_type = 'success'
      @site.tested_client = true
      @site.save
    rescue
      @response = 'Could not locate Inlay Client.'
      @response_type = 'error'
    end

And it seems to work very well. But I have a test site that it is not finding. 
When I comment out the rescue portion, the error I get indicates that the host 
could not be found. I have tried adding a line to the hosts file (the way you 
would on a Mac to do fake DNS for a development site) and this too appears to 
be ignored completely. The Rails server is running on Ubuntu 14, with all the 
latest patches, and I even tried rebooting the entire server to get any caches 
to clear. Dig on the server is able to find the test machine, but Net::HTTP on 
the same server cannot. 

Can anyone offer a direction to start looking? Are there configurations that I 
could be doing to ensure that lookup is exhaustive before giving up?

Thanks,

Walter

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