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other subnet CANNOT resolve internal host name but can resovle internet host name

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Pls help. I just setup a Bind9 in Ubuntu 20.4 server(192.168.1.100). I have 3 subnet in the network. 192.168.0.0/23, 192.168.33.0/24 and 192.168.88.0/24.

In 192.168.0.0/23 network, I can resolve Internet Host name and Internal host name without problem.

But in 192.168.33.0/24 and 192.168.88.0/24 netowork, I can resolve the Internet Host name such www.google.com. But I cannot resolve the right IP for the internal host. When I try to resovle an internal host. It will return the IP 208.91.112.55.

Anyone knows what is the problem?named.conf.options named.conf.local zone file ping restult from other subnet

Terrance avatar
id flag
I just dealt with this by setting up an AdGuardHome adblocker. Since it is not my default DNS, I tried to have external DNS (like 8.8.8.8 or 1.1.1.1) setup on it, but it wouldn't work for any of my local hosts. I could ping them, but no name resolutions. So, to fix it, I set its DNS server to my main DNS server (router) and all my problems were solved.
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