A and CNAME records for multiple domains

[gpatrick]

My company will host 2 internal DNS servers in a DMZ on a private network (10.10.10) and has three domains: example.org, example.com and example.net. There will be an nginx reverse proxy in front.

In db.example.com when A records are created would I use:

www IN A 10.10.10.100
reverseproxy IN A 10.10.10.130

in db.example.org

www IN A 10.10.10.110
reverseproxy IN A 10.10.10.130

in db.example.net

www IN A 10.10.10.120
reverseproxy IN A 10.10.10.30

In db.10.10.10 would it be:

100 IN PTR www.example.com
110 IN PTR www.example.org
120 IN PTR www.example.net
130 IN PTR reverseproxy.example.com

Is this correct or what needs to be changed to host 3 domains from the DNS servers?

Also, what domain name does the reverse proxy server get?

 

[SirDice]

Looks correct. You might want to add a final dot to the hostnames in the reverse zone though. Like http://www.example.com. (note the dot at the end). This is to indicate they truly are fully qualified.

To get around the problem of the reverseproxy you could change the A record in example.net and example.org to a CNAME pointing to reverseproxy.example.com.