tsushima.su.		30 IN SOA ns1.ht-systems.ru. noc.ht-systems.ru. (
				3403290320 ; serial
				3600       ; refresh (1 hour)
				300        ; retry (5 minutes)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

tsushima.su.		30 IN A	78.110.50.129

Mail exchangers:
tsushima.su.		30 IN MX 100 mxs.ht-systems.ru.

Name servers:
tsushima.su.		30 IN NS ns2.ht-systems.ru.
tsushima.su.		30 IN NS ns1.ht-systems.ru.