V2EX cname

CNAME

释义 Definition

CNAME 是 DNS(域名系统)中的一种记录类型,表示 “规范名称记录 / 别名记录”(Canonical Name)。它把一个域名指向另一个域名,用于给域名设置“别名”,常见于把 www.example.com 指向 example.com 或指向某个托管平台提供的域名。(注意:DNS 里还有 A/AAAA、MX、TXT 等记录类型。)

发音 Pronunciation

/si.nem/

例句 Examples

A CNAME record points one domain name to another.
CNAME 记录会把一个域名指向另一个域名。

To use the CDN, we created a CNAME so our subdomain resolves to the provider’s hostname.
为了使用 CDN,我们创建了一个 CNAME,让我们的子域名解析到服务商提供的主机名。

词源 Etymology

CNAMECanonical Name 的缩写:canonical 意为“规范的、标准的”,在 DNS 语境下指“真实/标准的目标域名”;CNAME 用来把“别名域名”映射到这个“规范域名”。

相关词 Related Words

文学作品用例 Literary Works

CNAME 主要是网络与计算机领域的技术术语,更常见于 RFC 标准文档、技术书籍与官方文档中,一般不作为文学作品中的常用词出现。

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