How BIND9 DNS Server Works on Ubuntu
BIND9 (Berkeley Internet Name Domain) is the most widely used DNS software on Linux servers. On Ubuntu, the service runs under the process name named (Name Daemon). Key Files in BIND9 /etc/bind/named.conf.options: Controls global DNS settings. /etc/bind/db.domain: Stores zone records like SOA, NS, A, MX, and TXT. Using named-checkzone, administrators can safely verify zone syntax before reloading the DNS service.