After specifying MX records for a 2nd tier domain, is it necessary to
restate the MX records for a new $ORIGIN? For example, if I have:
$ORIGIN .
...
IN MX 10 mx1.example.com.
IN MX 10 mx2.example.com.
IN MX 10 mx3.example.com.
IN MX 10 mx4.example.com.
Do I also need to do the following?:
$ORIGIN blah.example.com.
MX 10 mx1.example.com.
MX 10 mx2.example.com.
MX 10 mx3.example.com.
MX 10 mx4.example.com.
Or is the first statement sufficient to cover all sub-domains as long as
the MX records are the same?
Also, I have a number of records that I redirect to a GSLB device and
have 1,000+ records that I delegate to the devices as follows:
$ORIGIN blah.example.com.
www NS gss1.example.com.
NS gss2.example.com.
Is there a more efficient method of doing this, eliminating the need to
do this for every sub-domain? Perhaps a forward statement in the conf
file?
Brian
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