Recently, I've configured many A records on my zpanel DNS configuration with same name but different values. I was expecting the DNS server which installed with zPanel by default, reply a resolve request with a random value (IP address) but it was replying a fixed IP address, normally the first value that I had created for this A record. In order to resolve this issue, I was trying to change the BIND configuration:
root@hosting:~# nano /etc/bind/named.conf
Put the bold line in the "options" section and reboot your server:
options {
.....
recursion no;
dnssec-validation yes;
dnssec-lookaside auto;
rrset-order {order random;};
....
That will do the trick and from now on, the DNS server will respond with a random value upon a query request.
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