获取自己的IP地址

Question

How to get my own IP address with Rails?

When I do it like this I got: 127.0.0.1

@ip = request.remote_ip

Is there any way to get the Public IP?

Answer 1

Try:

require 'socket'
ip=Socket.ip_address_list.detect{|intf| intf.ipv4_private?}
ip.ip_address if ip

Answer 2

我相信request.env['SERVER_NAME']工作，如果你想反映服务器基地址

Answer 3

试试这个：

request.env['REMOTE_ADDR']

Answer 4

Call the page using your IP, not localhost. Ie, 192.168.2.9:3000 in case of the default development environment would yield:

request.env['REMOTE_ADDR']
#=> 192.168.2.9

or:

request.remote_ip 
#=> 192.168.2.9 

Answer 5

As your request is local to the server, it returns the "localhost" address, ie 127.0.0.1 . If you request it from a machine hosted on the internet, it will give you a static IP of the remote server.

If you want the static IP of own internet then visit http://ping.eu and you can see your public IP.

Answer 6

This does not answer this question. I think someone else can find this answer helpful.

Problem:

I am developing a mobile app. So, When I debug / hot reload / live reload the app in real mobile device. Images url does not work with localhost:3000 .

Images works with ip like this: http://192.168.0.102:3000/user/1/profile-223hfkj33.jpg

Problem is Every time I turn on laptop and connect to wifi router, laptop ip changes. So, every-time I need to change asset_host in environments/development.rb file.

Looking at previous answers I found a solution:

Solution:

in environments/development.rb I write this code:

server_address = "#{Socket.ip_address_list.detect(&:ipv4_private?).try(:ip_address)}:3000"
config.asset_host = server_address

puts "Server address: #{server_address}"
# when I run `rails s`, this line prints server address in console

So, It sets asset_host like this: 192.168.0.102:3000
And when I turn on laptop, laptop gets new ip address and it works.

Answer 7

Socket.ip_address_list.detect(&:ipv4_private?).ip_address