[TriLUG] DIG and Nameservers
Brian McCullough via TriLUG
trilug at trilug.org
Fri Feb 17 16:35:34 EST 2017
On Fri, Feb 17, 2017 at 04:35:32PM -0500, Aaron S. Joyner wrote:
> First, don't trust whois. You're on the right track using dig. Try "dig
> +trace rentalventures.com" to see how a standard resolver walks the set of
> NS authority records from the root nameservers down to the domain in
> question.
Thank you for the usual very informative answer.
Actually, both MX records have been there for a long time, but I suspect
that the following was causing the second to not be seen.
They were "rentalventures.com MX 5 whatever" and "*.rentalventures.com
MX 25 whatever".
When I changed the priorities, I also removed the "*".
Thank you for the explanation about SPF ( TXT ) records. I didn't know
that.
Thanks again, Aaron. Long time no see.
Brian
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