spf-discuss
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RE: Wildcard DNS entry

2004-09-09 14:23:59
True, but some will have 1000s of records to add.  That was a major point.
We were talking the future.  With a small feature added to bind, only 1
extra record would be needed.

We have covered this.
Please start at the beginning of the thread.

Guy

-----Original Message-----
From: owner-spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
[mailto:owner-spf-discuss(_at_)v2(_dot_)listbox(_dot_)com] On Behalf Of Roger 
Moser
Sent: Thursday, September 09, 2004 4:55 PM
To: spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
Subject: [spf-discuss] Wildcard DNS entry

Guy wrote:

But it should wait until the dedicated record type is assigned.  Otherwise
bind would not know the difference between two unrelated txt records.

There is no need to wait for the dedicated record. BIND does not have to
know the difference. If a subdomain has a TXT record, then BIND should
return that record only and not the wildcard record.

This would not work:

watkins-home.com.     txt     "v=spf1 ..."
**.watkins-home.com.  txt     "v=spf1 -all"
www.watkins.home.com. a       1.2.3.4
www.watkins.home.com. txt     "My first web server!"
hot.watkins.home.com. a       1.2.3.5
hot.watkins.home.com. txt     "v=spf1 a -all"
ftp.watkins.home.com. a       1.2.3.6

But this will work:

watkins-home.com.       txt     "v=spf1 ..."
**.watkins-home.com.    txt     "v=spf1 -all"
www.watkins-home.com.   a       1.2.3.4
www.watkins-home.com.   txt     "My first web server!"
www.watkins-home.com.   txt     "v=spf1 -all"
hot.watkins-home.com.   a       1.2.3.5
hot.watkins-home.com.   txt     "v=spf1 a -all"
ftp.watkins-home.com.   a       1.2.3.6

Roger

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