$TTL 38400	; 10 hours 40 minutes 
@		IN SOA	srv1.domaine.lan. root.srv1.domaine.lan. (
		2022020100 ; serial
		10800      ; refresh (3 hours)
		3600       ; retry (1 hour)
		604800     ; expire (1 week)
		38400      ; minimum (10 hours 40 minutes)
	)
	IN	NS	srv1.domaine.lan.
	IN	NS	srv2.domaine.lan.

110	IN	PTR	srv1.domaine.lan.
111	IN	PTR	xp.domaine.lan.
114	IN	PTR	srv2.domaine.lan.