How to get client IP and Server IP using Rails

From your controller:

request.remote_ip

If you are using apache in front of a mongrel, then remote_ip will return the source address of the request, which in this case will be local host because the Apache web server is making the request, so instead put this in your controller:

@remote_ip = request.env["HTTP_X_FORWARDED_FOR"]

To get the server IP see:

Getting the Hostname or IP in Ruby on Rails