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Run dig against several different public DNS servers
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| #!/usr/bin/env elixir | |
| domain = System.argv() | |
| defmodule GlobalDig do | |
| @dns_servers %{ | |
| bahnhof_se: "213.80.98.2", | |
| cloudflare: "1.1.1.1", | |
| comodo_us: "8.26.56.26", | |
| dyn: "216.146.35.35", | |
| freedns: "37.235.1.174", | |
| google: "8.8.8.8", | |
| level3: "209.244.0.3", | |
| open_dns: "208.67.222.222", | |
| safe_dns: "195.46.39.39", | |
| verisign_us: "64.6.64.6", | |
| yandex_ru: "77.88.8.88", | |
| hinet_tw: "168.95.1.1", | |
| quad9: "9.9.9.9", | |
| securolytics_ca: "144.217.51.168", | |
| uunet_ch: "195.129.12.122", | |
| uunet_de: "192.76.144.66", | |
| uunet_uk: "158.43.240.3", | |
| uunet_us: "198.6.100.25" | |
| } | |
| def start(pid, domain) do | |
| spawn(pid, domain) | |
| wait() | |
| end | |
| def wait do | |
| receive do | |
| {:ok, name, result} -> | |
| IO.puts( | |
| "#{Atom.to_string(name) |> String.upcase() |> String.replace("_", " ")}: \n#{result}" | |
| ) | |
| wait() | |
| after | |
| 5000 -> IO.puts("") | |
| end | |
| end | |
| def spawn(pid, domain) do | |
| @dns_servers | |
| |> Enum.each(fn {name, ip} -> | |
| spawn(fn -> | |
| {result, _status} = | |
| System.cmd( | |
| "dig", | |
| ["+nocmd", "@#{ip}", "#{domain}", "+noall", "+answer"] | |
| ) | |
| send(pid, {:ok, name, result}) | |
| end) | |
| end) | |
| end | |
| end | |
| GlobalDig.start(self(), System.argv()) |
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| #!/usr/bin/env ruby | |
| module DigTheWorld | |
| module_function | |
| DNS_SERVERS = { | |
| bahnhof_se: "213.80.98.2", | |
| cloudflare: "1.1.1.1", | |
| comodo_us: "8.26.56.26", | |
| dyn: "216.146.35.35", | |
| freedns: "37.235.1.174", | |
| google: "8.8.8.8", | |
| level3: "209.244.0.3", | |
| open_dns: "208.67.222.222", | |
| safe_dns: "195.46.39.39", | |
| verisign_us: "64.6.64.6", | |
| yandex_ru: "77.88.8.88", | |
| hinet_tw: "168.95.1.1", | |
| quad9: "9.9.9.9", | |
| securolytics_ca: "144.217.51.168", | |
| uunet_ch: "195.129.12.122", | |
| uunet_de: "192.76.144.66", | |
| uunet_uk: "158.43.240.3", | |
| uunet_us: "198.6.100.25", | |
| } | |
| def call(domain) | |
| results = DNS_SERVERS.map do |name, ip| | |
| command = "dig @#{ip} #{domain}" | |
| result = `#{command} +noall +answer`.split("+cmd\n").last | |
| ["#{name.upcase.to_s.gsub('_', ' ')}: #{command}", result].join("\n") | |
| end.join("\n") | |
| puts results | |
| end | |
| end | |
| DigTheWorld.call(ARGV.first) |
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