How to get my machine's IP address from Ruby without leveraging from other IP address?

Isn't the solution you are looking for just:

require 'socket'addr_infos = Socket.ip_address_list

Since a machine can have multiple interfaces and multiple IP Addresses, this method returns an array of Addrinfo.

You can fetch the exact IP addresses like this:

addr_infos.each do |addr_info|  puts addr_info.ip_addressend

You can further filter the list by rejecting loopback and private addresses, as they are usually not what you're interested in, like so:

addr_infos.reject( &:ipv4_loopback? )          .reject( &:ipv6_loopback? )          .reject( &:ipv4_private? )

ruby sockets ip

This is what I've been using in production for years:

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

Works great; tested on aws and classical hosting

ruby sockets ip

require 'socket'Socket::getaddrinfo(Socket.gethostname,"echo",Socket::AF_INET)[0][3]

quite like method 1, actually

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