Recently I changed my internet provider and had to move to a VDSL connection and I started having dns issues.
My network is like this now:
VDSL ModemRouter from internet provider which has the external ip, lets say,
18.104.22.168. The router has NAT on 192.168.1.0 – 255.
Then I have my internal router that has the ip 192.168.1.2 and which also has NAT on network 10.0.1.0 – 255.
The DNS and mail server is on 10.0.1.200.
I routed the ports for DNS, mail, etc on both routers to point to 10.0.1.200.
The forward lookup zone works ok, i have defined the mx record on mail.mydomain.com and also on domain.com and have A records for mail, www, ns, ns1, ns2 with the external ip, 22.214.171.124. The FQDN record has all the ips: 126.96.36.199, 192.168.1.2 and 10.0.1.200.
The reverse dns lookup zone is defined on the external ip and is like 92.91.90 – …. Ihave defined a PTR record for mail.mydomain.com with the external IP but it still when I check from the exterior it doesn’t recognize the reverse lookup.
Can you please help?