+masters "primary-ns" {
+ 18.18.208.12; // olinda
+};
+
+masters "secondary-ns" {
+ 18.25.129.162; // adehnert3.xvm
+ 18.18.208.22; // chankillo
+ // Linode
+ // https://www.linode.com/docs/products/networking/dns-manager/guides/incoming-dns-zone-transfers/#operate-as-a-secondary-read-only-dns-service
+ 104.237.137.10;
+ 45.79.109.10;
+ 74.207.225.10;
+ 207.192.70.10;
+ 109.74.194.10;
+ 2600:3c00::a;
+ 2600:3c01::a;
+ 2600:3c02::a;
+ 2600:3c03::a;
+ 2a01:7e00::a;
+};