BIND

ISC BIND for DNS

https://www.isc.org/downloads/bind/

Education Resources

http://www.zytrax.com/books/dns/

http://www.zytrax.com/books/dns/ch6/

BIND9

Issues

tail -f /var/log/syslog
managed-keys-zone: DNSKEY set for zone '.' could not be verified with current keys

named.conf.options - https://gitlab.isc.org/isc-projects/bind9/-/issues/492

        // dnssec-validation auto;
        dnssec-validation yes;