Re: PTR Records

MC <mc@xxxxxxxx> wrote:
> Thanks, Kevin. I got the A records for dewey and changed the MX
> records; and deleted all of the MX records that pointed to mail@......
>
> I'm a little confused as to what to do with the CName records. We
> receive email addressed to all of those domains. Here's what is
> currently there:
>
> (same as parent folder) Host 168.9.128.18
> (same as parent folder) Mail Exchanger [10] dewey.cowetaschools.net.
> (same as parent folder) Name Server dns1.cowetaschools.org.
> (same as parent folder) Name Server dns2.cowetaschools.org.
> (same as parent folder) Start of Authority [2005100608],
> dns1.cowetaschools.org., administrator.cowetaschools.org.
> dewey Host 168.9.128.29
> mail Host 168.9.128.29
> pop Alias mail.cowetaschools.org.
> smtp Alias mail.cowetaschools.org.

You would have a lot cleaner zone if you just create the CNAME record, name
it mail, pop or whatever and point that CNAME record to
dewey.coetaschools.net. This way if the IP for dewey.cowetaschools.net ever
changes all the CNAMES will get the updated IP. This won't be a big problem
since all domains are hosted by the same DNS server.

>
> What do I need to change/add to fix that?
> And how should I fix the NS record problems?

Alright, lets use this domain, (cowetaschools.org) all you need to do is
edit the NS records in this zone, and change the NS name to
dns1.cowetaschools.net and dns2.cowetaschools.net.
-Or-
Edit the Domain at the registrar and change the public record to reflect the
dns1.cowetaschools.org and dns2.cowetaschools.org that the zone says. If
these name are already registered as name servers by your registrar, this
would actually be the best route. This is because the DNS host records
should actually be in the same TLD as the domain they host, it's not
required, but it make resolving the domain from the root faster by skipping
a step for resolving the NS records. You won't have any downtime since they
are on the same DNS server.

The point is, your DNS server should give the same NS records that are
listed on the public record for the domain. If you will run DNS report for
each of these domains it will tell you which are right and which aren't.

> I really appreciate your help. As you can see, our DNS has been
> needing attention for a long time.




--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
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