$TTL 38400	; 10 hours 40 minutes 
@	IN SOA	serv1.domaine.lan. root.serv1.domaine.lan. (
		2016091501 ; serial
		10800      ; refresh (3 hours)
		3600       ; retry (1 hour)
		604800     ; expire (1 week)
		38400      ; minimum (10 hours 40 minutes)
	)
	IN	NS	serv1.domaine.lan.
	IN	NS	serv2.domaine.lan.

61	IN	PTR	serv1.sio.lan.
60	IN	PTR	serv2.sio.lan.
14	IN      PTR     wd.sio.lan.