In Linux, the default behavior of the DNS resolver is to follow the order of the DNS servers listed in the /etc/resolv.conf file.
On my router (v6.48.6) I setup a DHCP network, and added my DNS servers in this order: 10.10.1.253, 10.10.10.20
But on my client, in the /etc/resolv.conf file, the DNS servers are listed in the reverse order:
10.10.10.20
10.10.1.253
Any idea how to fix this?