```bash sudo apt install bind9 ``` ```conf options { directory "/var/cache/bind"; forwarders { 192.168.1.10; 8.8.8.8; 1.1.1.1; }; dnssec-validation no; #listen-on { any; }; # listen-on-v6 { any; }; listen-on port 53 { 127.0.0.1; }; listen-on-v6 { none; }; forward only; allow-query { any; }; recursion yes; allow-recursion { any; }; }; ```