ventilationsystems.cz.	30 IN SOA scw2.hiro.cz. hostmaster.hiro.cz. (
				2019040602 ; serial
				14400      ; refresh (4 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

ventilationsystems.cz.	30 IN A	77.93.199.176

Mail exchangers:
ventilationsystems.cz.	30 IN MX 100 mail-backup.hiro.cz.
ventilationsystems.cz.	30 IN MX 10 ns.hiro.cz.

Name servers:
ventilationsystems.cz.	30 IN NS scw2.hiro.cz.
ventilationsystems.cz.	30 IN NS d1.hiro.cz.