$ORIGIN .
$TTL 1800	; 30 minutes
infoclinica.lan		IN SOA	ns41.infoclinica.lan. admin.sdsys.ru. (
				2018071001 ; serial
				1800       ; refresh (30 minutes)
				120        ; retry (2 minutes)
				1209600    ; expire (2 weeks)
				900        ; minimum (15 minutes)
				)
			NS	gate41.infoclinica.lan.
			NS	ns41.infoclinica.lan.
			A	192.168.204.61
$ORIGIN infoclinica.lan.