国科云提供域名管理、域名锁、智能解析、DDI、IPv6转换、SSL证书等一站式域名解决方案，并形成以云解析、云监控、云盾、云服务器为核心的云计算产品服务体系。
发布时间：2024-08-08 16:42:11
什么是DNS缓存？当用户在浏览器中第一次输入目标域名后，会委托本地DNS服务器依次从根服务器、顶级服务器请求至域名授权的权威DNS服务器，并在权威DNS服务器处获得域名所对应的IP地址。本地DNS服务器将IP地址告知浏览器，浏览器再对这个IP地址发起请求，从而完成整个的访问过程。DNS缓存有什么用？减轻DNS服.........【阅读全文】
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