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BIND

rndc reload example.com

named-checkzone example.com /var/lib/named/master/example.com

DDNS

Manual edit of zone file:

rndc freeze example.com
vi /var/lib/named/master/example.com
rndc reload example.com
rndc thaw example.com

journal rollforward failed not exact

systemctl stop named
rm /var/lib/named/dyn/example.com.jnl
systemctl start named