ptr云解析DNS 的相关内容

问答 2024-08-18 来自：开发者社区

阿里云支持做PTR反向解析么？

如题，目前计划将邮件服务器转入到阿里云上面，但是不知道阿里云这边支持做PTR反向解析么？有知道的朋友能告知一下，不胜感激。

问答 2022-02-15 来自：开发者社区

DNS的PTR域名反向解析超时导致ping域名延迟

我们使用centos系统的主机，对两个不同的域名进行ping的操作，发现PTR超时会导致域名解析出现延迟ping通的问题，这个问题怎么解决。求大神给予答复。正常情况下：ping ikanfa.net，第一次DNS解析回IP地址，第二次DNS是PTR反向解析，马上有返回了，后面ping的报文就可以继续，没有延时。这个时候ping很流程用户感觉不到等待时间。异常情况下，DNS...

阿里云文档 2018-01-24

如何设置反向解析及PTR记录_云解析 PrivateZone(PrivateZone)

什么是反向解析反向解析是从 IP 地址到域名的映射，相对于将域名映射到 IP 地址的正向解析。因为一个IP可能被多个域名使用，所以在进行反向解析时要先验证一个 IP 地址是否对应一个或者多个域名。若从 IP 出发遍历整个DNS系统来验证，将会因工程浩大而无法实现。因此，RFC1035 定义了 PTR...

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更新时间 2024-08-19 09:13:50

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