On Tue, Aug 30, 2011 at 10:51 AM, Thomas Mullins
<[email protected]> wrote:
>> dig +noall +ans ANY media.pearsoncmg.com. @ns.pearsoncmg.com.
>
> I am going to read and learn how to use dig.
The two important parts were:
* The "ANY" directive, which tells dig to query for any known DNS
records. By default, dig just asks for A (address records).
* The nameserver specification. By default, dig will query your local
nameserver. With "ANY", that will generally mean your local
nameserver will just respond with whatever cached records it has -- in
practice, this means whatever DNS records you happen to have looked up
recently. By asking an authoritative nameserver for the domain,
you're getting the answer straight from the horse's mouth, so to
speak.
The "+noall" and "+ans" are cosmetic. That just turn off all output
options, and then turns on only the "answer" section from the
response. Just makes it shorter, for email. :)
As for how I found an authoritative nameserver, I just did:
dig NS pearsoncmg.com.
-- Ben
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
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