https://answer.freetools.me/tags/sad-dns/ Recent content in SAD DNS on Answer Hugo -- 0.152.2 zh-cn Sat, 07 Mar 2026 04:42:36 +0800 https://answer.freetools.me/dns%E7%BC%93%E5%AD%98%E6%8A%95%E6%AF%92%E4%B8%BA%E4%BD%95%E8%83%BD%E5%9C%A8%E4%BA%8C%E5%8D%81%E5%B9%B4%E9%97%B4%E5%8F%8D%E5%A4%8D%E5%A4%8D%E6%B4%BB%E4%BB%8Ekaminsky%E5%88%B0sad-dns%E7%9A%84%E6%8A%80%E6%9C%AF%E5%8D%9A%E5%BC%88/ Sat, 07 Mar 2026 04:42:36 +0800 https://answer.freetools.me/dns%E7%BC%93%E5%AD%98%E6%8A%95%E6%AF%92%E4%B8%BA%E4%BD%95%E8%83%BD%E5%9C%A8%E4%BA%8C%E5%8D%81%E5%B9%B4%E9%97%B4%E5%8F%8D%E5%A4%8D%E5%A4%8D%E6%B4%BB%E4%BB%8Ekaminsky%E5%88%B0sad-dns%E7%9A%84%E6%8A%80%E6%9C%AF%E5%8D%9A%E5%BC%88/ 深入解析DNS缓存投毒攻击的技术本质，从2008年Kaminsky漏洞到2020年SAD DNS攻击、2023年MaginotDNS，再到2025年CVE-2025-40778，揭示这场持续二十年的攻防博弈背后的协议缺陷、防御措施与突破手段。 https://answer.freetools.me/dns-%E7%BC%BA%E4%B9%8F%E8%BA%AB%E4%BB%BD%E9%AA%8C%E8%AF%81%E7%9A%84%E5%90%8E%E6%9E%9C%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%89%E5%8D%81%E5%B9%B4%E5%89%8D%E8%AE%BE%E8%AE%A1%E7%9A%84%E5%8D%8F%E8%AE%AE%E8%87%B3%E4%BB%8A%E4%BB%8D%E5%9C%A8%E5%88%B6%E9%80%A0%E5%AE%89%E5%85%A8%E5%8D%B1%E6%9C%BA/ Thu, 05 Mar 2026 15:31:43 +0800 https://answer.freetools.me/dns-%E7%BC%BA%E4%B9%8F%E8%BA%AB%E4%BB%BD%E9%AA%8C%E8%AF%81%E7%9A%84%E5%90%8E%E6%9E%9C%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%89%E5%8D%81%E5%B9%B4%E5%89%8D%E8%AE%BE%E8%AE%A1%E7%9A%84%E5%8D%8F%E8%AE%AE%E8%87%B3%E4%BB%8A%E4%BB%8D%E5%9C%A8%E5%88%B6%E9%80%A0%E5%AE%89%E5%85%A8%E5%8D%B1%E6%9C%BA/ 从1983年DNS诞生到2020年SAD DNS攻击，互联网域名系统从未被设计为验证响应的真实性。本文深入剖析DNS缓存投毒、Sea Turtle国家级DNS劫持、DNS放大攻击等威胁的技术原理，详细解析DNSSEC如何通过链式信任和数字签名解决身份验证问题，以及为什么这一安全机制在部署三十年后仍只有不到6%的域名采用。