After some delay to allow the DNS changes to propagate (2 to 4 hours is what we experienced), you can start testing things.

等一段时间，让DNS修改能够传播开(我们感觉需要2到4小时)，然后开始测试。

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Make sure you're using not more than 2-4 domains because of the DNS lookup penalty.

确保您由于DNS查找罚款的使用不超过2 - 4域。

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For example, Listing 2 shows the initial lines of a simple nsswitch.conf file set up for NIS, DNS, and local file resolution.

例如，清单2显示了为NIS、DNS和本地文件解析设置的简单nsswitch . conf文件的前几行数据。

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