Re: [exim] problem with certain DNS lookups for NS records

Etusivu
Poista viesti
Vastaa
Lähettäjä: Tony Finch
Päiväys:  
Vastaanottaja: exim-users
Aihe: Re: [exim] problem with certain DNS lookups for NS records
On Mon, 6 Feb 2006, Philip Hazel wrote:
>
> The DNS specifications allow any character other than a dot in
> components of domain names.


Actually, dots are allowed too (!). The protocol-level representation of
DNS labels is a counted string so even nul characters are permitted (!!).
There's a syntax for escaping special characters in the zone master file
format described in RFC 1035.

Tony.
--
<fanf@???> <dot@???> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}