ddns-update-style interim; option dhcp-server-identifier 192.168.10.20; log-facility local7; key SecDNS { algorithm hmac-md5; secret "SuperSecretKeyForDNSUpdates"; // Not my real key } # Forward DNS lookup zone zone home.lan. { primary 192.168.10.20; key SecDNS; } # Reverse DNS lookup zone zone 10.168.192.in-addr.arpa. { primary 192.168.10.20; key SecDNS; } # Home Network subnet 192.168.10.0 netmask 255.255.255.0 { option domain-name "home.lan"; option ntp-servers 192.168.10.20; option domain-name-servers 192.168.10.20 , 208.67.222.222 , 208.67.220.220; option broadcast-address 192.168.10.255; option routers 192.168.10.1; authoritative; ignore client-updates; ddns-updates on; max-lease-time 604800; default-lease-time 432000; range 192.168.10.241 192.168.10.250; }