$ORIGIN . $TTL 38400 ; 10 hours 40 minutes ip6.arpa. IN SOA dns.REPLACE_DOMAIN. admin.REPLACE_DOMAIN. ( 2018013087 ; serial 10800 ; refresh (3 hours) 3600 ; retry (1 hour) 1209600 ; expire (2 weeks) 38400 ; minimum (10 hours 40 minutes) ) NS dns.REPLACE_DOMAIN. $ORIGIN ip6.arpa. $INCLUDE /var/named/dynamic/inc/static.ipv6.arpa.rev