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Dns 添加cname时出现无效的cname错误_Dns_Cname - Fatal编程技术网

Dns 添加cname时出现无效的cname错误

Dns 添加cname时出现无效的cname错误,dns,cname,Dns,Cname,在dynect.net上添加2-01-3d52-0001.cdx.cedexis.net时,我收到无效的cname错误。知道我为什么会犯这个错误吗?cname有什么问题?看起来您的DNS服务器根据过时的RFC检查域名的有效性: 这里引用的旧RFC说: 第一 字符必须是字母字符 而现在的说法是: 2.1主机名和号码 The syntax of a legal Internet host name was specified in RFC-952 [DNS:4]. One aspect

在dynect.net上添加2-01-3d52-0001.cdx.cedexis.net时,我收到无效的cname错误。知道我为什么会犯这个错误吗?cname有什么问题?

看起来您的DNS服务器根据过时的RFC检查域名的有效性:

这里引用的旧RFC说:

第一 字符必须是字母字符

而现在的说法是:

2.1主机名和号码

  The syntax of a legal Internet host name was specified in RFC-952
  [DNS:4].  One aspect of host name syntax is hereby changed: the
  restriction on the first character is relaxed to allow either a
  letter or a digit.  Host software MUST support this more liberal
  syntax.