Jeff Weisberg on Wed, 16 Jul 2003 09:46:05 -0400


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Re: [PLUG] dig returns "Transfer failed", what to do?



| I really do disagree. Because I can leave off the left hand side,
| and have the semantic meaning remain. Witness this example out of
| eclipsed.net's zone file:

I'm not sure why this confuses you. I see nothing confusing.


| @   IN  A               66.92.234.99

the address (A) of '@' (aka 'eclipsed.net') is '66.92.234.99'.
'66.92.234.99' is an address.

the $TYPE of $LEFT is $RIGHT. $RIGHT is a $TYPE.

|     IN  MX	          100 mail.eclipsed.net.

the mail exchange data (MX) of 'eclipsed.net' is '100 mail.eclipsed.net.'.
'100 mail.eclipsed.net.' is mail exchange data.

the $TYPE of $LEFT is $RIGHT. $RIGHT is a $TYPE.

|     IN  NS              grappa.eclipsed.net.

the nameserver (NS) of 'eclipsed.net' is 'grappa.eclipsed.net.'
'grappa.eclipsed.net.' is a nameserver.

the $TYPE of $LEFT is $RIGHT. $RIGHT is a $TYPE.

|     IN  NS              ns1.netisland.net.
|     IN  NS              ns2.netisland.net.
|     IN  NS              ns3.netisland.net.


| All of these RR types are descriptions of eclipsed.net (expressed
| here ONLY as @, shorthand for the declared zone).

yes, that is correct.

| And if that doesn't convince you, what about the SOA record? That

convince me of what? that:
    | DNS terminology unfortunately DRASTICALLY misuses the word
    | "canonical", but that really is what the C in CNAME stands for

no, sorry. I am having trouble seeing the confusion.


        mail            CNAME   cliff-claven.example.com.

the canonical name (CNAME) of 'mail' is 'cliff-claven.example.com.'
'cliff-claven.example.com.' is the canonical name.

the $TYPE of $LEFT is $RIGHT. $RIGHT is a $TYPE.




	--jeff
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