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公共 DNS 哪个好（速度快、稳定）？ - 知乎 dns服务器是一个常年开着的服务器，做一个的指路人，是需要很大代价的，比如服务器费、电费，然后一旦是名声好的dns，大家都会去用，所以负担也会比较大，这个时候一台dns服务器的配置怎么样就体现出来了，因此，免费的dns不是很多（但也不少）。
DNS basics - Google Workspace Admin Help The TTL is a value in a DNS record that determines the number of seconds before subsequent changes to the record go into effect Each of your domain's DNS records, such as an MX record, CNAME record, and so on, has a TTL value A record's current TTL determines how long it will take any change you make now to go into effect
公共 DNS 哪个好（速度快、稳定）？ - 知乎 谷歌的publicDNS我是知道的，就是很多人经常用的8 8 8 8。这个openDNS我搜了一下：OpenDNS是一个免费的域名解析服务提供商（DNS），并具备反钓鱼、内容控制软件等功能。
Windows11的DNS 缓存出问题了怎么办？ - 知乎 清空 DNS 缓存 DNS 缓存问题通常可以通过清空缓存解决： 按 Win + R 打开运行窗口，输入 cmd 并按下回车。 在命令提示符中输入以下命令并回车： ipconfig flushdns 显示 “已成功刷新 DNS 解析缓存” 后，问题可能会得到解决。
DNS是什么？有什么作用？ - 知乎 什么是DNS？ DNS是 (Domain Name System) 的缩写，中文名为“域名系统”，它是一个将域名与IP地址进行相互映射的分布式数据库，可以将用户输入的域名转换为可直接又机器读取的IP地址串，实现便捷的网络互连。 DNS 由域名解析器和域名服务器组成的。通过它可以把
Set up Google Workspace with a third-party DNS host Update your DNS records These steps describe how to move your DNS records to another domain host, and then verify your domain and set up Gmail The example host is ClouDNS net, which provides several DNS services, including limited, free DNS hosting Several other domain hosts offer similar features, and the setup steps are similar
Change your DNS server - Google Nest Help Automatic is the default DNS selection, although the default may be different depending on how you obtained your device ISP’s DNS: This uses your ISP’s DNS Custom: This lets you specify a custom or third-party DNS Custom DNS supports two distinct lists of servers, primary and secondary for both IPv4 and IPv6