我应该在我的DNSurl末尾添加一个点(。)吗?

我注意到AWS的DNS服务(Route53)在每个DNS地址的末尾添加一个点(。):

ns-xxx.awsdns-yy.co.uk. ns-xxx.awsdns-yy.net. ns-xxx.awsdns-yy.org. ns-xxx.awsdns-yy.com. 

问题:这是一个错误,还是应该包括? 在我的DNS设置?

最后的点是正确的。

这是一个鲜为人知的事实,但完全合格的(明确的)DNS域名最后有一个点。 运行DNS服务器的人通常会知道这一点(如果你错过了后面的点,你的DNSconfiguration不太可能工作),但普通公众通常不知道。 最后没有点的域名不是完全限定的,可能是不明确的。 这在1987年的DNS规范RFC 1034中有记载:

 Since a complete domain name ends with the root label, this leads to a printed form which ends in a dot. We use this property to distinguish between: - a character string which represents a complete domain name (often called "absolute"). For example, "poneria.ISI.EDU." - a character string that represents the starting labels of a domain name which is incomplete, and should be completed by local software using knowledge of the local domain (often called "relative"). For example, "poneria" used in the ISI.EDU domain. 

从这里