Have you read the rest of the documents? E.g.,: https://tools.ietf.org/html/rfc2181#section-11
On Thu, Apr 7, 2016 at 11:21 PM, Adrien de Croy <adr...@qbik.com> wrote: > > > ------ Original Message ------ > From: "Ted Lemon" <mel...@fugue.com> > > > <domain> ::= <subdomain> | " " >> >> <subdomain> ::= <label> | <subdomain> "." <label> >> >> <label> ::= <letter> [ [ <ldh-str> ] <let-dig> ] >> >> <ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str> >> >> <let-dig-hyp> ::= <let-dig> | "-" >> >> <let-dig> ::= <letter> | <digit> >> >> <letter> ::= any one of the 52 alphabetic characters A through Z in >> upper case and a through z in lower case >> >> <digit> ::= any one of the ten digits 0 through 9 >> >> >> if this was a BNF production only for hostnames, why call it <domain>, > <label> etc. > > There's no other BNF for domain name in the spec. > > Adrien > > > >> >>
_______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
