Oct 5, 2026
多 CDN 与多 DNS 容灾实战:健康检查、降级预案与切换检查表
以近期 Cloudflare 全球故障为引子,给出多 CDN 与多 DNS 的容灾设计:流量分配与健康检查配置、静态资源降级、源站直连预案、切换演练流程,以及故障判定与回切的检查表。
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