<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Dns on 黄文卓 | DevOps Engineer</title><link>https://socake.github.io/tags/dns/</link><description>Recent content in Dns on 黄文卓 | DevOps Engineer</description><generator>Hugo -- gohugo.io</generator><language>zh-CN</language><managingEditor>17691281867@163.com (Wenzhuo Huang)</managingEditor><webMaster>17691281867@163.com (Wenzhuo Huang)</webMaster><copyright>© 2026 Wenzhuo Huang</copyright><lastBuildDate>Wed, 29 Oct 2025 09:30:00 +0800</lastBuildDate><atom:link href="https://socake.github.io/tags/dns/index.xml" rel="self" type="application/rss+xml"/><item><title>CoreDNS 深度排障：K8s DNS 问题完全指南</title><link>https://socake.github.io/posts/coredns-troubleshooting-guide/</link><pubDate>Wed, 29 Oct 2025 09:30:00 +0800</pubDate><author>17691281867@163.com (Wenzhuo Huang)</author><guid>https://socake.github.io/posts/coredns-troubleshooting-guide/</guid><description>DNS 问题是 K8s 中最难定位的问题之一，因为它的失败往往是间歇性的、有延迟的，看起来像网络问题，实际上是 DNS 超时。本文记录了我在生产环境排查过的多类 DNS 故障，附详细的抓包分析和调优配置。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://socake.github.io/posts/coredns-troubleshooting-guide/featured.jpg"/></item><item><title>ExternalDNS 多云 DNS 同步实战：从 Route53 到 Cloudflare 再到阿里云 DNS</title><link>https://socake.github.io/posts/external-dns-multi-provider/</link><pubDate>Sat, 22 Feb 2025 09:45:00 +0800</pubDate><author>17691281867@163.com (Wenzhuo Huang)</author><guid>https://socake.github.io/posts/external-dns-multi-provider/</guid><description>手工在 Cloudflare 控制台点 DNS 记录这件事，随着集群和业务增长最终必然崩溃。ExternalDNS 就是把 Kubernetes 资源当 source-of-truth、DNS provider 当执行器的一个 controller。但真要用好，你得理解 txtOwnerId、policy、provider 各自的限制以及跨集群共享 zone 的几个坑。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://socake.github.io/posts/external-dns-multi-provider/featured.jpg"/></item></channel></rss>