hi all,
I installed bind9 on my server and configure it to forward all queries to my ISP DNS, it's works great. But I found sometimes, when a domain have both AAAA and A records, my operating system (iOS and Windows) will access IPv4 address instead of IPv6 one, which I don't expected. Now I wanna configure my bind9 to forwards all queries and check them -- if my ISP DNS return both AAAA and A records, just return AAAA records to client and drop A records.
Is this possible? How to do with it? Thanks.

BTW: Some domains, such as "battle.net", have both AAAA and A records, but the latency of IPv4 is less that that of IPv6, so I have to specified some domain to override the rules above....
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