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I’m seeing a “DynDNS2” protocol referenced a lot but I have a hard time locating its specification. AFAICS, RFC 2136 is not versioned on the protocol level so I’m inclined to rule that one out. Somehow I can find numerous implementations of DynDNS2 but the repos I’ve browsed don’t link to a canonical document either.

Example: https://support.google.com/domains/answer/6147083 – that’s Google claiming they support this protocol without further explanation.

Where can I find the official specification of DynDNS2?

Who is in charge of its standardization and development?

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该链接（现在）显示了如何“手动”执行此操作：

https://username:password@domains.google.com/nic/update?hostname=subdomain.yourdomain.com&myip=1.2.3.4

并提供更多规格。您应该再次检查指向支持页面的链接，然后单击使用 API 更新您的动态 DNS 记录 

Example HTTP query:
POST /nic/update?hostname=subdomain.yourdomain.com&myip=1.2.3.4 HTTP/1.1
Host: domains.google.com
Authorization: Basic base64-encoded-auth-string User-Agent: Chrome/41.0 your_email@yourdomain.com

此外，您需要添加用户代理标头以确保您的呼叫不会被忽略，或者更糟糕的是，您的客户端被阻止。

在 source forge 中，您可以找到这些动态 DNS“协议”的列表。

于 2019-04-18T20:34:54.803 回答
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Dyn.com在他们的网站上有很好的文档，包括流程图、更新 api和返回码

于 2021-01-14T00:41:40.030 回答