[dns-operations] about the underline in hostname

[Nicolas CARTRON]

On 29/05/2014 10:24, hua peng wrote:
> I found this is a valid RR:
>
> _spf.yandex.ru.         2768    IN      TXT     "v=spf1
> include:_spf-ipv4.yandex.ru include:_spf-ipv6.yandex.ru ~all"
>
>
> But for A, CNAME, AAAA etc, the underline in hostname is invalid.
> Does this make a confusion?
>
> Thanks.
Nope, see RFC 2872 for instance.

-- 
Nicolas.