DNSの更新反映を自動的に定期的にチェックするスクリプト

使い方

$ ruby dns_retry.rb google.com

require 'net/dns'
require 'nsnotify'

target = ARGV[0]

puts "Start retry..."
puts Net::DNS::Resolver.start(target)

loop do
  print "."

  ans = Net::DNS::Resolver.start(target).answer
  if ans.count > 0
    Nsnotify.notify "Found", ans.join(" / ")
    break
  end

  sleep 60
end