menu4u.cz.		30 IN SOA ns.as4u.org. hostmaster.as4u.org. (
				2018082400 ; serial
				14400      ; refresh (4 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

menu4u.cz.		30 IN A	88.86.100.195
menu4u.cz.		30 IN AAAA 2a01:28:ca:72::100:195

Mail exchangers:
menu4u.cz.		30 IN MX 10 mx-02.menu4u.cz.
menu4u.cz.		30 IN MX 5 mx-01.menu4u.cz.

Name servers:
menu4u.cz.		30 IN NS ns.as4u.cz.
menu4u.cz.		30 IN NS ns.as4u.org.
menu4u.cz.		30 IN NS ns.district9.cz.