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rmarchei/is_public.rb

Created June 17, 2016 06:24
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Test if an IP is public
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is_public.rb
def is_public?(ip)
["127.0.0.0/8", "192.168.0.0/16", "172.16.0.0/12", "10.0.0.0/8"].map { |net| (IPAddr.new net).include?(IPAddr.new ip) }.none?
end
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