https://blog.geek.16775390.xyz/tags/%E5%BA%94%E7%94%A8%E5%B1%82/Recent content in 应用层 on Geek HubHugozh-cnTue, 18 Aug 2026 10:00:00 +0800https://blog.geek.16775390.xyz/posts/dns-deep-dive/Tue, 18 Aug 2026 10:00:00 +0800https://blog.geek.16775390.xyz/posts/dns-deep-dive/完整剖析 DNS 解析链路：递归/迭代查询、缓存机制、DNS 劫持防御、DoH/DoT 加密原理。