CNAME problems (was: Re: query on non-query socket)
Markus Stumpf
maex-bind-users at Space.Net
Tue Aug 3 19:37:31 UTC 1999
On Tue, Aug 03, 1999 at 12:08:37PM -0700, party wrote:
> ftp IN CNAME softnetcom.com.
> IN MX 10 mail.anemos.com.
> www IN CNAME softnetcom.com.
> IN MX 10 mail.anemos.com.
>
> Which should work just fine, because softnetcom.com is an A,
> and ftp and www are CNAMES of softnetcom.com.
In your logfiles you should find error messages like
"contains CNAME and other data illegal"
Entries that have an CNAME records MAY NOT contain any other record.
(this is defined in a RFC, I'm rather sure it is there since the first
one on DNS).
CNAME means kinda "I don't really exist, all info is at <host_cname_points_to>"
Also it is not allowed that NS or MX records point to CNAMEs. A setup
like:
; ------------------------------------------------------------------------
bar IN NS ns
IN MX 10 mail
ns IN CNAME foo
mail IN CNAME foo
foo IN A 1.2.3.4
; ------------------------------------------------------------------------
is invalid.
\Maex
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