[Gllug] DNS verification (slightly OT)
Andy Millar
andy at andymillar.co.uk
Fri Apr 17 08:25:05 UTC 2009
> What? No! It's perfectly valid to have:
> mydomain.foo. IN NS ns1.example.org.
> mydomain.foo. IN NS 12.34.38.82
As per RFC 1035:
<domain-name> is a domain name represented as a series of labels, and
terminated by a label with zero length. <character-string> is a single
length octet followed by that number of characters. <character-string>
is treated as binary information, and can be up to 256 characters in
length (including the length octet).
and:
3.3.11. NS RDATA format
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
/ NSDNAME /
/ /
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
where:
NSDNAME A <domain-name> which specifies a host which should be
authoritative for the specified class and domain.
So, you surely should mean
"mydomain.foo. IN NS 12.34.38.82." to comply with the required format?
Andy
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