「DNS」- 相关概念

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FQDN – Fully Qualified Domain Name

Hostname, Domain name
Hostname + Domain name = Fully Qualified Domain Name

TLD – Top Level Domain

gTLD – Generic TLD

com, edu, gov, mil, org, .net, …

.asia, .info, .jobs, .top, …

ccTLD – Country code TLD

us, en, cn, jp, uk, …

特征

1)授权与分层负责
每个上一层的DNS伺服器所记录的资讯,其实只有其下一层的主机名称

相关链接

An Introduction to DNS Terminology, Components, and Concepts
A Comparison of DNS Server Types: How To Choose the Right DNS Configuration

参考文献

鳥哥的 Linux 私房菜/第十九章、主機名稱控制者: DNS 伺服器