Re: DNS Deployment

kjs wrote:
Our ISP has all of our DNS entries but we have all of our servers
hosted locally. I want to have this setup so that we can make
additions to our DNS servers for servers that are not to be seen on
the Internet but also have it so that records that our ISP has, we
also have so that when an Internet outage occurs, our local users can
still http with DNS names. Is that possible?

Yes, you can do this, it is easy if you understand how DNS works which
really isn't rocket science. It's more like looking up numbers in the phone
book, where the last name is the domain name i.e. domain.com, and each host
is the first name i.e. www, mail, ftp, or whatever.

Create a zone named domain.com, the first host you would create done by
leaving the name field blank, that gives you the IP address for domain.com,
the next host is named www, with the IP of the www.domain.com site. You
would continue on by create a record for each name and its IP.
If your Web servers have the capability to act as an SMTP server for sending
mail to any of these domains you may want internal MX records with the
correct SMTP host name record. But under most circumstances where you just
have mail clients only MX records are not needed mail clients don't look for
a don't use MX records, only SMTP servers look for MX records.

Make sure the IPs of these records are the IPs needed for local access, for
example, if your servers are all behind a single NAT device, they can only
communicate with each other by their LAN address, not the Public address of
the records at your ISP..

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