zone "site1.example.com" { type master; file "/etc/bind/config/internal/db.site1.example.com"; }; zone "dhcp.site1.example.com" { type master; file "/etc/bind/config/internal/db.dhcp.site1.example.com"; }; zone "100.15.10.in-addr.arpa" { type master; file "/etc/bind/config/internal/db.100.15.10.in-addr.arpa"; };