biscol.ru.		30 IN SOA ns1.ht-systems.ru. noc.ht-systems.ru. (
				3404210100 ; serial
				3600       ; refresh (1 hour)
				300        ; retry (5 minutes)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

biscol.ru.		30 IN A	78.110.50.129

Mail exchangers:
biscol.ru.		30 IN MX 10 MX01.NICMAIL.ru.
biscol.ru.		30 IN MX 5 MX02.NICMAIL.ru.
biscol.ru.		30 IN MX 20 MX03.NICMAIL.ru.

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