确保您能够从IBM Cloud实例ping每个DNS服务器，并验证域名正是您所预期的。

Be sure you can ping each of the DNS servers from IBM Cloud instances and verify that the domain name is what you expect.

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当目前所有的浏览器必须更新来利用以域名系统为基础的命名实体身份验证时，新系统可以与旧的并存，并作出逐步过渡。

Whilst all current browsers must be updated to take advantage of DANE, the new system can coexist with the old, and a gradual transition can be made.

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域名的重要性得到了验证。

The importance of the domain name got test and verify.

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