DNS zone has no Name Server (NS) record.
DNS区域没有名称服务器(NS)的记录。
What sets the DNS advertiser apart from any other DNS server hosting DNS zone files is that the DNS advertiser answers queries only for domains for which it is authoritative.
除DNS区文件宿主的其他DNS服务器之外的DNS广告者设置，是DNS广告者只回答其授权的域名的查询。
To add more DNS servers to your configuration, first edit your zone files and add NS records for each slave that will also be hosting the domain.
要向您的配置添加更多的DNS服务器，可以首先编辑区域文件，并为同样将承载该域的每个从属服务器添加ns记录。
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