检查有效的联通缓存服务器ip

check_unicom_cache.rb

require 'uri'
require 'net/http'
require 'timeout'

def check_server(ip)
  uri = URI('http://ip.mangege.com/')

  Timeout::timeout(3) do
    Net::HTTP.start(ip, 80) do |http|
      request = Net::HTTP::Get.new uri

      response = http.request request
      puts ip if response.body.include?(ip)
    end
  end
rescue
end

(1..254).each do |i|
  check_server("120.52.72.#{i}")
end

120.52.72.19
120.52.72.20
120.52.72.21
120.52.72.22
120.52.72.23
120.52.72.24
120.52.72.47
120.52.72.48
120.52.72.52
120.52.72.53
120.52.72.54
120.52.72.55
120.52.72.56
120.52.72.58
120.52.72.59