domain-name-system – 注册域时,是否可以通过FQDN和IP指定主名

我想从注册商处购买域名并使用我自己的域名服务器(假设它们已经托管,配置并监听2个数据中心的某些静态IP),而不是通过其托管服务提供商FQDN指定它们.理想情况下,我想通过在新域中使用FQDN命名它们来指定它们.
搜索了一下后我发现了这个：

从http://en.wikipedia.org/wiki/Domain_Name_System开始：

When domain names are registered with a domain name registrar,their
installation at the domain registry of a top level domain requires the
assignment of a primary name server and at least one secondary name
server. The requirement of multiple name servers aims to make the
domain still functional even if one name server becomes inaccessible
or inoperable.[11] The designation of a primary name server is solely
determined by the priority given to the domain name registrar. For
this purpose,generally only the fully qualified domain name of the
name server is required,unless the servers are contained in the
registered domain,in which case the corresponding IP address is
needed as well.

但问题是注册商的Web界面中每个名称服务器只有一个文本字段.我无法提供FQDN和IP.

在尝试联系他们之前,我想知道我是否遗漏了一些显而易见的东西,或者是否要求没人做的事情.