（緊急）BIND 9.xの脆弱性（DNSサービスの停止）について（2015年7月31日更新）
--------------------------------------------------------------------- ■（緊急）BIND 9.xの脆弱性（DNSサービスの停止）について（2015年7月31日更新） - フルリゾルバー（キャッシュDNSサーバー）／権威DNSサーバーの双方が対象、 バージョンアップを強く推奨 - 株式会社日本レジストリサービス（JPRS） 初版作成 2015/07/29（Wed） 最終更新 2015/07/31（Fri） （PoCが公開され、日本国内において被害事例が報告された旨を追加） --------------------------------------------------------------------- ▼概要 BIND 9.xにおける実装上の不具合により、namedに対する外部からのサービ ス不能（DoS）攻撃が可
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DNS Performance Analytics and Comparison Find the fastest and most reliable DNS for free based on millions of tests How we measure DNS Performance All DNS providers are tested every minute from 200+ locations globally. All tests are over IPv4 with a 1-second timeout. The public data is updated once per hour, but contact us for real-time data.
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サーバアクセス障害 [最終更新 2014/12/22 16:10] | VALUE DOMAIN:バリュードメイン
[2014/12/22 14:12] 平素は弊社サービスをご利用いただき誠にありがとうございます。 弊社サービスにて、障害が発生いたしておりました。 ご迷惑をお掛けし申し訳ございません。 ○確認した症状： ネームサーバー（ns1-5.value-domain.com）にて、名前の解決障害が発生 ○影響範囲： ・ns1-5.value-domain.com を使った名前の解決が出来ない ・VALUE-DOMAINユーザーコントロールパネルアクセス不可 ・サーバアクセス不可 ※ns1-5.value-domain.comを利用していないドメインにつきましては表示可です。 ○障害発生日時： 2014/12/22 14:12 〜 15:20 ○現在の復旧への取り組み状況： 14時12分頃 ns1-5.value-domain.com にて大量の攻撃パケットが送られ、応答が出来ない症状が発生 14時
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Check your DNS against over 1500 global DNS servers Download .zip Download .tar.gz View on GitHub DNSYO AALLLLL THE DNS DNSYO is a little tool I built to help me keep track of DNS propagation. In short, it's nslookup, if nslookup queried over 1500 servers and collated their results. Here's what it does $ dnsyo -t 100 -q ALL example.com Status: Queried 1804 of 1804 servers, duration: 0:00:09.334441
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Lesser known DNS tools and BIND tricks