$TTL 38400 ; 10 hours 40 minutes @ IN SOA ns.domaine.lan. root.ns.domaine.lan. ( 2016091501 ; serial 10800 ; refresh (3 hours) 3600 ; retry (1 hour) 604800 ; expire (1 week) 38400 ; minimum (10 hours 40 minutes) ) ; IN NS ns.domaine.lan. 44 IN PTR ns.domaine.lan. 155 IN PTR test.domaine.lan.